Answer:
[tex](-3, \frac{9}{5})[/tex]
Step-by-step explanation:
We have the equation [tex]2x + 5y-3 = 0[/tex].
The ordered pairs of this equation have the form [tex](x_0, y_0)[/tex]
Where x is the independent variable and y is the dependent variabe.
That is, the points belonging to the line [tex]2x + 5y-3 = 0[/tex] have the form [tex](x_0, f (x_0))[/tex]
For [tex]y = f(x)[/tex].
So, we need to find [tex]f(x_0)[/tex] for x_0 = -3.
Then we substitute x = -3 into the equation and clear the value of y.
[tex]2(-3) + 5y -3 = 0[/tex]
[tex]-6 + 5y = 3\\\\5y = 9\\\\y = \frac{9}{5}[/tex].
Then the ordered pair is:
[tex](-3, \frac{9}{5})[/tex]
Graph the line passing through the given point and having the indicated slope. through (3, negative 2) with slope minus−three fifths 3/5
Answer:
See the attachment
Step-by-step explanation:
A slope of -3/5 means the line drops 3 units for each 5 units it goes to the right. Then you can find another point on the line by going 5 uints to the left (to x=-2) and 3 units up (to y=1).
Plot the given point and the one just computed and draw the line through them.
Complete the square to transform the quadratic equation into the form (x – p)2 = q. x2 - 12x - 5 = 7 A) (x - 36)2 = 9 B) (x - 6)2 = 48 C) (x - 36)2 = -9 D) (x - 6)2 = -48
(May I have an explanation or work that you did)
x2 - 12x - 12 = 0
(x - 6)2 - 48 = 0
(x - 6)2 = 48
Hence, the answer is (B).
Answer:
B
Step-by-step explanation:
given
x² - 12x - 5 = 7 ( add 5 to both sides )
x² - 12x = 12
To complete the square
add (half the coefficient of the x- term )² to both sides
x² + 2(- 6)x + (- 6)² = 12 + (- 6)²
x² + 2(- 6)x + 36 = 12 + 36 ← complete the square on the left side
(x - 6)² = 48 → B
Suppose f is a differentiable function such that f′(x)≤2 for all x∈[1,3]. If f(1)=4, the Mean Value Theorem says that f(3)≤V for what value of V? (Choose V as small as possible.)
The MVT guarantees the existence of [tex]c\in(1,3)[/tex] such that
[tex]f(c)=\dfrac{f(3)-f(1)}{3-1}=\dfrac{f(3)-4}2[/tex]
Since [tex]f'(x)\le2[/tex] for all [tex]x\in[1,3][/tex], we have
[tex]\dfrac{f(3)-4}2\le2\implies f(3)-4\le4\implies f(3)\le8[/tex]
so that [tex]V=8[/tex].
The mean value theorem is used to link the average rate of change and the derivative of a function.
The value of V is 8.
The given parameters are:
[tex]\mathbf{f'(x) \le 2}[/tex]
[tex]\mathbf{f(1) = 4}[/tex]
[tex]\mathbf{f(3) \le V}[/tex]
[tex]\mathbf{x \in [1,3]}[/tex]
Mean value theorem states that:
If [tex]\mathbf{f(x)\ is\ continuous\ at }[/tex] [a,b] and
[tex]\mathbf{f(x)\ is\ differentiable\ on }[/tex] (a,b),
Then there is a point c in (a,b), such that:
[tex]\mathbf{f'(c) = \frac{f(b) - f(a)}{b - a}}[/tex]
From the question, we understand that: f is differentiable
This means that:
[tex]\mathbf{f'(c) = \frac{f(b) - f(a)}{b - a}}[/tex]
So, we have:
[tex]\mathbf{f'(c) = \frac{f(3) - f(1)}{3 - 1}}[/tex]
[tex]\mathbf{f'(c) = \frac{f(3) - f(1)}{2}}[/tex]
Substitute 4 for f(1)
[tex]\mathbf{f'(c) = \frac{f(3) -4}{2}}[/tex]
Recall that: [tex]\mathbf{f'(x) \le 2}[/tex]
The equation becomes
[tex]\mathbf{\frac{f(3) -4}{2} \le 2}[/tex]
Cross multiply
[tex]\mathbf{f(3) -4 \le 4}[/tex]
Add 4 to both sides
[tex]\mathbf{f(3) \le 8}[/tex]
From the question, we have: [tex]\mathbf{f(3) \le V}[/tex]
By comparisons;
[tex]\mathbf{V = 8}[/tex]
Hence, the value of V is 8.
Read more about mean value theorems at:
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Read the statement.
Doubling the dimensions of a rectangle increases the area by a factor of 4.
If p represents doubling the dimensions of a rectangle and q represents the area increasing by a factor of 4, which are true? Check all that apply.
1)p → q represents the original conditional statement.
2)~p → ~q represents the inverse of the original conditional statement.
3)q → p represents the original conditional statement.
4)~q → ~p represents the converse of the original conditional statement.
5)p → ~q represents the contrapositive of the original conditional statement.
Answer:
1) and 2)
Step-by-step explanation:
Let us see the correction in the rest of the statements.
3) p→q represent the original conditional statement.
4) ~q → ~p represents the contrapositive of the original conditional statement
5) contrapositive of the original conditional statement will be ~q → ~p
There is one more implication called Converse of the original conditional statement . It is represented as q→p
How can you use a point on the graph of f –1(x) = 9x to determine a point on the graph of f(x) = log9x?
Whenever you can invert a function, you have that the graphs of [tex]f(x)[/tex] and its inverse [tex]f^{-1}(x)[/tex] are reflected with respect to the line [tex]y=x[/tex]
So, given any point on the graph of [tex]f^{-1}(x)[/tex], you can simply swap its coordinates to get the correspondent point on the original function [tex]f(x)[/tex]
As an example, all exponential functions pass through the point [tex](0,1)[/tex], while all the logarithmic functions pass through the point [tex](1,0)[/tex]
Answer: switch x and y coordinates
Step-by-step explanation:
fill 350 milliliter bottles from a 30 liter drum how many bottles
Answer:
85
Step-by-step explanation:
0.350 L × n = 30 L . . . . . where n is the number of bottles.
Divide by 0.350:
n = (30 L)/(0.350 L) ≈ 85.7
85 bottles can be filled, and one can be partially filled.
_____
Of course, you know the SI prefix milli- means 1/1000, so 350 mL = 350/1000 L = 0.350 L. When you do the division indicated above, ...
(30 L)/(0.350 L)
the units of liters cancel, and you are left with the number of bottles.
Help plz show work please
Alright, so here we have a cone and a cylinder. The cone has a height of 12. The cylinder has a height of 10.5. Both shapes, because they're on top of each other, have a diameter of 26 or a radius of 13.
Equation for a cylinder: [tex]V_{cylinder} = \pi r^{2} h[/tex]
Equation for a cone: [tex]V_{cone} = \frac{1}{3} \pi r^{2} h[/tex]
We're going to add both of the volumes of these shapes as soon as we find them.
Cylinder:
[tex]V_{cylinder} = \pi r^{2} h\\= \pi (13)^{2} (10.5)\\\approx 5574.756[/tex]
Cone:
[tex]V_{cone} = \frac{1}{3} \pi r^{2} h\\= \frac{1}{3} \pi (13)^{2} (12)\\\approx 2123.717[/tex]
Add both values: 2123.717 + 5574.756 = 7698.473 cm³.
Hope this was helpful, let me know if I missed anything!
Answer:
7698.473 cm³.
Step-by-step explanation:
I need to write a 5-paragraph eassy, so please help me it is base on an article name "Schools in Maryland Allow Elementary Students to Carry Cellphones, by Amanda Lenhart, The Washington Post" here are some pic. I just need help writing two paragraph. I already have my Introduction, Body Paragraph #1 and my Body paragraph #2 just need my Body paragraph #3 and my Conclusion I will give brainlis and 30 pnt.
Prompt:
Write an argumentative essay answering the questions: Should students be allowed to carry cellphones on campus? You must support your claim with evidence from the text. You may also use relevant examples from your own experience, observations, and other readings.
Directions:
Before you begin, read the text below, which presents information about the advantages and disadvantages of carrying a cell phone at school. Use the Student Writing Checklist on the back of this page to plan and write a multi-paragraph essay that addresses the prompt. Use your own words, except when quoting directly from the text.
Before it started to rain, Bobby cut 1 8 of the grass in his yard and Danny cut 1 5 of the grass in the yard. Both boys were disappointed because they were not able to cut the entire yard.
Which statement is TRUE?
A)Together the boys didn't even cut half the yard. B) The boys were able to cut more than half the yard. C) The boys cut almost three-fourths of the yard. D) Together the boys cut almost the entire yard.
It’s B. The boys were able to cut more than half the yard.
Answer:
A) Together the boys didn't even cut half the yard.
Step-by-step explanation:
The amount cut was ...
1/8 + 1/5 = 5/40 +8/40 = 13/40
This amount is less than half = 20/40, so choice A is appropriate.
_____
You can reason about these fractions several ways:
1. half is 2 1/2 fifths. 1/8 is less than 1/5, so 1/5+1/8 < (2 1/2)/5.
2. half is 4/8. 1/5 is more than 1/8 but is less than 2/8. 1/8 + 1/5 < 3/8 < 1/2
3. 1/5 < 1/4; 1/8 < 1/4; 1/2 = 2/4, so two amounts less than 1/4 cannot be more than 1/2.
Factor form of x^2-x-30
Answer:
(x - 6)(x + 5)
Step-by-step explanation:
You know that in order to get x^2 there has to be two x's so you get:
(x ...)(x...)
Then you also know that two numbers have to multiply together and equal 30 but also have a sume of -1. So you get:
(x - 6)(x + 5)
Answer: [tex](x+5)(x-6)[/tex]
Step-by-step explanation:
To solve the exercise you must keep on mind the following:
- You must find two numbers whose sum is -1 and whose product is -30.
- These numbers would be 5 and -6.
Therefore, you can factor the quadratic equation given in the problem above [tex]x^2-x-30[/tex], as you can see below:
[tex]x^2-x-30\\(x+5)(x-6)[/tex]
9x - 4 -6x = 2(x + 1) -5
solve for x and show work, please.
Answer:
x = 1
Step-by-step explanation:
Subtract the right side of the equation and simplify:
9x -4 -6x -2(x +1) +5 = 0
9x -6x -2x -4 -2 +5 = 0 . . . . . eliminate parentheses
x -1 = 0 . . . . . . . . . . . . . . . . . . collect terms
x = 1 . . . . . . . . . . . . . . . . . . . . . add the opposite of the constant
_____
Check
Substitute the value of x where x is found in the equation.
9·1 -4 -6·1 = 2(1 +1) -5
9 - 4 - 6 = 2·2 -5
-1 = 4 -5 . . . . . true. The answer checks OK.
Given: m
EL
=(2x)°, m
LG
=(3x)°
m
GF
=(4x−8)°, m
FE
=(x−12)°
Find: m∠LTE
Answer:
m∠LTE = 110
Step-by-step explanation:
1. add up all of the arcs.
2x+3x+4x-8+x-12
2. all of the arcs equal 360
2x+3x+4x-8+x-12=360
3. Find x
10x-20=360, x=38
4. angle LTE is equal to half of the sum of the intercepted arcs.
0.5(arc LE +GF)
5. plug in LE +GF with x
.5(76+144)
Answer:
m∠LTE = 110°
Step-by-step explanation:
We know that sum of all arcs of a circle is 360°
Therefore [tex]m(arcAL)+m(arcLG)+m(arcGF)+(mFE)=360[/tex]
Now we put the values of each arc
[tex](2x)+(3x)+(4x-8)+(x-12)=2x+3x+4x+x-8-12=10x-20=360[/tex]
10x = 360 + 20
10x = 380
[tex]x=\frac{380}{10}[/tex]
x = 38
Now from the theorem of intersecting chords in a circle
Measure of ∠LTE = [tex]\frac{1}{2}[m(arcEL)+m(arcGF)][/tex]
m(arc EL) = 2x = 2×38 = 76°
m(arc GF) = (4x - 8) = (4×38 - 8) = (152 - 8) = 144°
Now we can get the measure of ∠LTE
m∠LTE = [tex]\frac{1}{2}(76 + 144)=\frac{220}{2}=110[/tex]
Therefore m∠LTE = 110° is the answer.
a large park in the shape of a parallelogram. The park has an area of 776 1/4 square yards. The base of the park 34 1/2 yards. marta wants to jog 10 sprints. each sprint is the same distance as the height of the park. how far will marta sprint
Answer:
So, marta will sprint 225 yards.
Step-by-step explanation:
Area of parallelogram= b*h
Given: Area = 776.5 square yards
Base = 34.5 yards
Area = b* h
776.5 = 34.5 * h
776.5/34.5 =h
=> h = 22.5
Since sprint is the same distance as of height of park so,
Distance of 1 sprint = 22.5 yards
Distance of 10 sprints = 10 * 22.5 = 225 yards
Answer:
hi
Step-by-step explanation:
If the difference in the values of dependent variables for a function is increasing as values of the independent variable increase, what kind of function does this represent? A) Linear B) Exponential C) Either D) Neither
WILL MARK BRAINLIEST!!!
The answer is b exponential
Evaluate the polynomial for x=9
-7x+6 please show your work
Answer:
-57
Step-by-step explanation:
Put the value of x where x is and do the arithmetic.
-7·9 +6 = -63 +6 = -57
The perimeter of a regular hexagon depends on the length of its side. Write the formula that describes this perimeter as the function of side’s length.
The formula to calculate the perimeter of a regular hexagon is P = 6s, where 'P' is the perimeter and 's' is the length of one side. It's crucial to use consistent units when measuring and calculating.
Explanation:In mathematics, the perimeter of a shape is the distance around its borders. For a regular hexagon, which is a six-sided polygon with all sides of equal length, the perimeter is calculated by simply multiplying the length of one side by the number of sides. Therefore, if you know the length of a side, you can calculate the perimeter of the regular hexagon using the formula:
P = 6s
Where 'P' is the perimeter and 's' is the length of a side of the hexagon. It's important to use consistent units when making these measurements and calculations to ensure accuracy.
Learn more about Perimeter of Hexagon here:https://brainly.com/question/14338151
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The perimeter of a regular hexagon can be calculated using the formula: P = 6 * S, where P represents the perimeter and S represents the length of a side.
Explanation:In mathematics, the perimeter of a shape is the distance around its borders. For a regular hexagon, which is a six-sided polygon with all sides of equal length, the perimeter is calculated by simply multiplying the length of one side by the number of sides. The formula that describes the perimeter of a regular hexagon as a function of the length of its side is:
P = 6 * S
Where P represents the perimeter and S represents the length of a side.
Since a regular hexagon has six equal sides, you can multiply the length of a side by 6 to find the total perimeter.
Learn more about Perimeter of regular hexagon here:https://brainly.com/question/32101495
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Determine whether the solids are similar.
Answer:
The solids are similar.
Step-by-step explanation:
Every linear dimension of the larger solid is twice that of the smaller solid. Since the scale factor is the same in every direction, the figures are similar.
A manufacturer uses a mold to make a part in the shape of a triangular prism. The dimensions of this part are shown below.
Which estimate is closest to the volume in cubic millimeters of the part?
A. 65
B. 125
C. 249
D. 446
Answer:
B. 125
Step-by-step explanation:
If you compute the actual volume as the product of the area of the triangle and the length of the piece, you get ...
V = Bh = (1/2)(14.4 mm)(2.1 mm)·(8.25 mm) = 124.74 mm
That is closest to choice B, 125 mm.
___
You can estimate the volume by rounding the dimensions. The triangle can be considered to be a rectangle of the same base width and half the height, so you are looking to estimate the product ...
(8.25 mm)(14.4 mm)(1.05 mm)
That's about 8 × 15 × 1 = 120 . . . . mm³.
Certainly, this is an estimate sufficiently close to allow you to choose the correct answer.
Solve the word problem.
Lee can frame a cabin in 4 days less than Ron. When they work together, they will do the job in 4 days. How long would each of them take to frame the cabin alone?
Ron
a0 days
Lee
a1 days
Answer:
Ron: 6+2√5 days ≈ 10.47 days
Lee: 2+2√5 days ≈ 6.47 days
Step-by-step explanation:
Let L represent the number of days it takes Lee to frame a cabin. Then it take L+4 days for Ron to frame it. Working together, they take 4 days. Then their rates, in cabins per day, add up as ...
1/L + 1/(L+4) = 1/4
Multiplying by the product of denominators, we get ...
4(L+4) +4L = L(L+4)
Subtracting the left side gives ...
L^2 -4L -16 = 0
Completing the square, we can write this as ...
L^2 -4L +4 = 20
(L -2)^2 = 20
L = 2 + √20 = 2 +2√5 ≈ 6.47
Lee takes 2+2√5 ≈ 6.47 days to frame a cabin.
Ron takes 6+2√5 ≈ 10.47 days to frame a cabin.
Rich is buying a home for $244,800. He is making a 15% down payment and financing the rest with a 25-year loan a 5.25% interest
A. $1149.02
B. $1216.44
C. $1246.82
D. $1466.84
Answer:
C. $1246.82
Step-by-step explanation:
Using the factor shown in the table for a 25-year loan at 5.25%, the calculated payment is ...
5.992·(244.8·0.85) = 1246.82
The factor of 0.85 on the home price represents the effect of subtracting 15% from the price to get the loan value. Of course, the home price is the number of thousands, so is 244.8 thousand.
_____
If you do the calculation, rather than use a factor from a table, you get a mortgage payment value of $1246.91. This suggests that the numbers in the table need more significant digits for loan values this high.
Answer:
C is your answer
The Wood family and the Roberts family each used their sprinklers last summer. The water output rate for the Wood family's sprinkler was 25 L
per hour. The water output rate for the Roberts family's sprinkler was15 L
per hour. The families used their sprinklers for a combined total of 60
hours, resulting in a total water output of 1250 L. How long was each sprinkler used?
Answer:
Wood family: 35 hours
Roberts family: 25 hours
Step-by-step explanation:
Let w represent the number of hours the Woods family ran their sprinkler. Then 60-w is the number of hours the Roberts family ran theirs. The total water usage (in liters) was ...
25w + 15(60-w) = 1250
10w = 350
w = 35 . . . . . . Wood family time (hours)
60-w = 25 . . . Roberts family time (hours)
___
Check
(35 h)·(25 L/h) + (25 h)·(15 L/h) = 875 L + 375 L = 1250 L . . . . answer checks OK
MARKING BRAINLIEST!!!
The graph shows two lines, A and B.
Based on the graph, which statement is correct about the solution to the system of equations for lines A and B?
(4, 4) is the solution to line A but not to line B.
(4, 4) is the solution to both lines A and B.
(5, 1) is the solution to line B but not to line A.
(0, 2) is the solution to both lines A and B.
Answer:
(4, 4) is the solution to both lines A and B.
Step-by-step explanation:
The solution to a system of equations is the point at which the two lines intersect. Lines A and B intersect at point (4,4). This means (4,4) is the point which makes both equations true for the same values. The correct answer is "(4, 4) is the solution to both lines A and B."
The dollar value v(t) of a certain car model that is t years old is given by the following exponential function.
v(t) = 32,000(0.95)^t
Find the initial value of the car and the value after 13 years.
Round your answers to the nearest dollar as necessary.
Answer:
v(0) = 32,000 . . . dollars
v(13) = 16,427 . . . dollars
Step-by-step explanation:
The initial value is the value of the function for t=0. Put that into the formula and evaluate.
v(0) = 32,000(0.95^0) = 32,000 . . . . dollars
__
The value after 13 years is the function value for t=13. Put that into the formula and evaluate.
v(13) = 32,000(0.95^13) ≈ 32,000·0.513342 ≈ 16,427 . . . . dollars
The sum of 6 and another number is 23, write and solve an equation to find the other number
Answer: 23 - 6 = x
x = 17
Step-by-step explanation:
6 + x = 23
x = 23 - 6
23 - 6 = 17
x = 17
6 + 17 = 23
Hope this helps!
Answer:
6+x=23
Step-by-step explanation:
So, the number you need to find is x, so x plus 6 equals 23 (the sum of the two numbers).
Hope this helped :)
Members of a high school sports team are selling boxes of popcorn and boxes of pretzels for a fundraiser. They earn $2 for every box of popcorn they sell and $5 for every box of pretzels. The members want to earn at least $500 from all sales. Let x represent the numbers of boxes of popcorn and let y represent the number of boxes of pretzels sold
Answer:
The solution in the attached figure
Step-by-step explanation:
Let
x------> the numbers of boxes of popcorn sold
y-----> the number of boxes of pretzels sold
we know that
[tex]2x+5y\geq 500[/tex] ----> inequality that represent the situation
using a graphing tool
The solution is the shaded area above the solid line [tex]2x+5y=500[/tex] between the positive values of x and the positive values of y
see the attached figure
We aim to earn $500+, selling popcorn at $2/box and pretzels at $5/box. Equation: [tex]\( y \geq \frac{500 - 2x}{5} \)[/tex], where ( x ) is the number of popcorn boxes.
let's break down the problem step by step:
1. Let's define our variables:
- ( x ): Number of boxes of popcorn sold
- ( y ): Number of boxes of pretzels sold
2. We are given the following information:
- The team earns $2 for every box of popcorn sold.
- The team earns $5 for every box of pretzels sold.
- The team wants to earn at least $500 from all sales.
3. We can express the total earnings from selling popcorn and pretzels using the given information:
- Total earnings from popcorn sales: ( 2x )
- Total earnings from pretzel sales: ( 5y )
4. Since the team wants to earn at least $500, we can write this as an inequality:
[tex]\[ 2x + 5y \geq 500 \][/tex]
Now, let's solve this inequality for \( y \):
[tex]\[ 2x + 5y \geq 500 \][/tex]
[tex]\[ 5y \geq 500 - 2x \][/tex]
[tex]\[ y \geq \frac{500 - 2x}{5} \][/tex]
So, the number of boxes of pretzels sold, ( y ), should be greater than or equal to[tex]\( \frac{500 - 2x}{5} \).[/tex]
Now, let's plot this inequality on a graph.
- Choose a few values of ( x ) and find the corresponding values of ( y ) using the inequality.
- Plot these points on the graph.
- Draw a line that passes through these points, and it should be a solid line because of the "greater than or equal to" sign.
- Shade the area above the line because ( y ) should be greater than or equal to[tex]\( \frac{500 - 2x}{5} \).[/tex]
Let's choose a few values of ( x ) to plot:
1. When ( x = 0):
[tex]\( y = \frac{500 - 2(0)}{5} = \frac{500}{5} = 100 \)[/tex]
2. When ( x = 100 ):
[tex]\( y = \frac{500 - 2(100)}{5} = \frac{500 - 200}{5} = \frac{300}{5} = 60 \)[/tex]
3. When ( x = 200 ):
[tex]\( y = \frac{500 - 2(200)}{5} = \frac{500 - 400}{5} = \frac{100}{5} = 20 \)[/tex]
what is the area of this figure
Answer:
54 square units
Step-by-step explanation:
A line (red in the attachment) can divide the figure into two triangles and a trapezoid. The formulas for the areas of these are ...
area of a triangle = (1/2)bh . . . . . where b is the base and h is the height
The triangle on the upper left has a base of 3 and a height of 2, so an area of ...
upper left triangle area = (1/2)(3)(2) = 3 square units . . . . area shown in red
The triangle on the upper right has a base of 6 and a height of 1, so an area of ...
upper right triangle area = (1/2)(6)(1) = 3 square units . . . . area shown in yellow
___
The formula for the area of a trapezoid is ...
area of a trapezoid = (1/2)(b1 +b2)h . . . . where b1 and b2 are the lengths of the parallel bases, and h is the height
The trapezoid has an upper base length of 9 and a lower base length of 7, and a height of 6, so its area is ...
area of bottom trapezoid = (1/2)(9 + 7)(6) = 48 square units . . . . area shown in green
___
Then the total area of the figure is the sum of the areas of its non-overlapping parts:
total area = upper left triangle area + upper right triangle area + trapezoid area
= (3 + 3 + 48) square units = 54 square units
The bear population of yellowstone national park goes from 230 bear to 300 bears. What is the percent of change?
so the difference is 300 - 230 = 70.
now, if we take 230 to be the 100%, what is 70 off of in percentage?
[tex]\bf \hspace{34em}|\\\\ \begin{array}{ccll} amount&\%\\ \cline{1-2} 230&100\\ 70&x \end{array}\implies \cfrac{230}{70}=\cfrac{100}{x}\implies \cfrac{23}{7}=\cfrac{100}{x} \\\\\\ 23x=700\implies x=\cfrac{700}{23}\implies x\approx 30.43[/tex]
Answer:23%
Step-by-step explanation:
300-230=70
70/300=0.23(3 goes on forever)
So 23%
subtract the original with the decreased value, then divide the answer you get with 300. That should equal 0.23 or 23%
a survey was given on hours of practice per week and the number of math questions answered correctly. The graph shows the results of the survey. The scatter plot indicates which of the following A.) a positive correlation B.) a negative correlation C.) no correlation
A) a positive correlation
Given: line AD≅ line AO
Find: m∠OAD, m∠DBA.
Please Help!
Answer:
Part 1) [tex]m<OAD=60\°[/tex]
Part 2) [tex]m<DBA=30\°[/tex]
Step-by-step explanation:
Part 1) Find the measure of angle OAD
we know that
OA=OD=radius of the circle
If line AD≅ line AO
then
The triangle AOD is an equilateral triangle
Remember that
An equilateral triangle has the three equal sides and the three internal angles equal (60 degrees each one)
so
[tex]m<OAD=60\°[/tex]
Part 2) Find the measure of angle DBA
we know that
The inscribed angle measures half that of the arc comprising
so
[tex]m<DBA=\frac{1}{2}(arc\ AD)[/tex]
[tex]arc\ AD=m<AOD=60\°[/tex] ----> by central angle
substitute the value
[tex]m<DBA=\frac{1}{2}(60\°)=30\°[/tex]
50+50-25*0+2+2=
What is the answer
Answer:
104
Step-by-step explanation:
50+50-25*0+2+2
Order of operations....50+50-0+2+2
This equals to 100+2+2
Then you get the answer of 104.
I hope you understand..
Answer:
104
Step-by-step explanation:
write the equation of the line that passes through the point (-4,-2) and is parallel to the line y= 1/4x + 3
First find the gradient of the perpendicular line. You do this by taking the negative reciprocal of the gradient of the first line (y= 1/4x +3):
Perpendicular gradient = negative reciprocal of [tex]\frac{1}{4}[/tex] = -4
Next, you substitute the x and y values into the following equation and solve:
y = -4x +c
-2 = -4(-4) +c
-2 = 16 + c
-18 = c
Substitute c back into the equation above to get the final answer:
y = -4x -18
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Answer
y = -4x - 18