Answer:
Part A: -3/7
Part B: y = -2
Step-by-step explanation:
Parallel lines have the same slope. Find the slope of CD. Then substitute it to find the value needed for AB.
The slope formula is
[tex]m = \frac{y_2-y_1}{x_2-x_1} = \frac{4-1}{-5-2} = \frac{3}{-7}[/tex]
Use the same formula and solve for y.
[tex]m = \frac{y_2-y_1}{x_2-x_1}\\\\-\frac{3}{7}= \frac{y--5}{-6-1} \\\\\frac{3}{-7} =\frac{y+5}{-7}\\\\3 = y+5\\3-5 = y\\-2 = y[/tex]
Find the length of XPY. Leave your answer in terms of pi.
Find the circumference of the circle:
C = 2PIr = 2PI6 = 12PI
Arc XPY is 3/4 of the circle.
XPY = 3/4 x 12PI = 9PI
Any smooth curve connecting two points is called an arc. The length of arc XPY is 9π cm.
What is the Length of an Arc?Any smooth curve connecting two points is called an arc. The arc length is the measurement of how long an arc is. The length of an arc is given by the formula,
Length of an Arc = 2π×R×(θ°/360°)
where
θ is the angle, that which arc creates at the centre of the circle in degree.
A circle has 360°, while the angle made by arc XY is 90°. Therefore, the measure of the angle made by the arc XPY at the centre of the circle is 270°. Also, the radius of the circle is 6 cm, therefore, the length of XPY is,
Length of XPY = 2π×6cm×(270°/360°) = 9π cm
Hence, the length of arc XPY is 28.2743 cm.
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Taking successive discounts of 15% off and then 25% off is the same as taking a one time discount of 40%.
Please select the best answer from the choices provided
T
F
Answer:
correct option is F
Step-by-step explanation:
Suppose there is a book the cost of which is $100
You got successive discounts of 15% off and then 25% off
So after getting 15% discount cost of book=$85
again on $85 there is a discount of 25%
it means
25% discount on $85=[tex]\frac{25\times 85}{100} \\[/tex]
=$21.25
It means after successive discounts of 15% off and then 25% off cost of book=[tex]85-21.25[/tex]
after successive discounts of 15% off and then 25% off cost of book=$63.75
On the other hand if you got 40% discount on the same book which costs $100
then after discount of 40% its cost will be=$60
It means,Taking successive discounts of 15% off and then 25% off is not same as taking a one time discount of 40%.
Therefore correct option is F
Answer:
false
Step-by-step explanation:
got it right on edg
what’s the domain of f(x)=4x
Answer:
all real values of x
Step-by-step explanation:
The domain is the values that x can take
The domain is all real values of x
Answer:all real numbers
Step-by-step explanation:
What is the area in square millimeters ?
The correct option is c.
The area of the figure is [tex]\( 320 \)[/tex] square millimeters.
To find the area of the given figure, which is composed of a triangle and a rectangle, follow these steps:
1. Calculate the area of the rectangle: The area of a rectangle is found by multiplying the length by the width. From the figure, we see that the length is 20 mm and the width is 15 mm. So, the area [tex]\( A_{\text{rectangle}} \)[/tex] is:
[tex]\[ A_{\text{rectangle}} = \text{length} \times \text{width} = 20 \, \text{mm} \times 15 \, \text{mm} \][/tex]
2. Calculate the area of the triangle: The area of a triangle is found by using the formula [tex]\( \frac{1}{2} \times \text{base} \times \text{height} \)[/tex]. The base of the triangle is 20 mm (same as the length of the rectangle) and the height, which is the perpendicular distance from the base to the opposite vertex, is 2 mm. So, the area [tex]\( A_{\text{triangle}} \)[/tex] is:
[tex]\[ A_{\text{triangle}} = \frac{1}{2} \times \text{base} \times \text{height} = \frac{1}{2} \times 20 \, \text{mm} \times 2 \, \text{mm} \][/tex]
3. Add the areas of the rectangle and triangle to find the total area: The total area [tex]\( A_{\text{total}} \)[/tex] is the sum of [tex]\( A_{\text{rectangle}} \)[/tex] and [tex]\( A_{\text{triangle}} \)[/tex].
[tex]\[ A_{\text{total}} = A_{\text{rectangle}} + A_{\text{triangle}} \][/tex]
Now let's calculate the areas with the given dimensions.
The area of the rectangle is [tex]\( 300 \)[/tex] square millimeters, and the area of the triangle is [tex]\( 20 \)[/tex] square millimeters. Adding these together gives us the total area of the figure:
[tex]\[ A_{\text{total}} = A_{\text{rectangle}} + A_{\text{triangle}} = 300 \, \text{mm}^2 + 20 \, \text{mm}^2 = 320 \, \text{mm}^2 \][/tex]
Therefore, the answer is [tex]\( 320 \)[/tex] square millimeters.
The options are give here:
A. 175 square millimeters.
B. 200 square millimeters.
C. 320 square millimeters.
D. 350 square millimeters.
Given f(x)=-8x+4 and g(x) = x^2, choose the expression for (f*g)(x)
ANSWER
[tex](f\circ g)(x) = - 8 {x}^{2} + 4[/tex]
EXPLANATION
Given f(x)=-8x+4
and
g(x)=x²
We want to find find an expression for;
[tex]
(f\circ g)(x) = f(g(x))[/tex]
[tex]
(f\circ g)(x) = f( {x}^{2} )[/tex]
We substitute x² into f(x)=-8x+4
This will give us:
[tex]
(f\circ g)(x) = - 8 {x}^{2} + 4[/tex]
the table shows the amount of apple sause made from one apple of each size. Patrice has 17 medium apples and 23 large apples. What is thetotal amount of apple sause that she can make with these apples?
Final answer:
Explaining how to calculate the total amount of apple sauce using medium and large apples.
Explanation:
The total amount of apple sauce Patrice can make with 17 medium apples and 23 large apples is:
17 medium apples x amount of apple sauce from one medium apple
23 large apples x amount of apple sauce from one large apple
Add the results from the above two calculations to find the total amount of apple sauce.
The sun of two polynomials is -yz^2 - 3z^2 -4y + 4. If one of the polynomials is y - 4yz^2 - 3 ,what is the other polynomial?
Answer:
2yz^2-3z^2-5y+7
Step-by-step explanation:
you find the polynomial difference between the two (remember to distribute the negative sign when opening up the parenthesis of the second polynomial. combine like terms and your left with your answer.
Answer:
3yz^2-3z^2-5y+7
Step-by-step explanation:
got it right on test ! Hello!
I WILL AWARD BRAINLIEST!!! PLEASE HELP!!! SOLVE FOR EACH!!!!
Using the given equation find the missing coordinates of the points and then find the slope of the line for each equation
1) y−2x=3; A(...; 6), B(15; ...)
2) 4.5x+3y=2; A(...; 1/3 ), B( 2/3 ; ...)
Answer:
1. A(3/2,6)
B(15,33)
2.A(2/9,1/3)
B(2/3,-1/3)
Step-by-step explanation:
1) y−2x=3; A(...; 6), B(15; ...)
We know y =6
Substitute this into the equation
6 -2x =3
Subtract 6 from each side
6-6 -2x=3-6
-2x = -3
Divide by -2
x = -3/-2
x = 3/2
A(3/2,6)
We know x = 15
y - 2(15) =3
y - 30 = 3
Add 30 to each side
y-30+30 = 3+30
y = 33
B(15,33)
2) 4.5x+3y=2; A(...; 1/3 ), B( 2/3 ; ...)
We know y = 1/3
4.5x + 3(1/3) = 2
4.5x +1 =2
Subtract 1 from each side
4.5x +1-1=2-1
4.5x = 1
Divide each side by 4.5
x = 1/4.5
x = 10/45
x =2/9
A(2/9,1/3)
Let x =2/3
4.5(2/3) +3y =2
3 +3y =2
Subtract 3 from each side
3-3+3y = 2-3
3y = -1
Divide by 3
y = -1/3
B(2/3,-1/3)
Answer:
1. A(3/2;6) B(15;33)
slope=2
2. A(2/9;1/3) B(2/3;-1/3)
slope=-1.5
Step-by-step explanation:
Hope this helps,
Have a great day
The attic shown is a triangular prism. Insulation will be placed inside the walls, not including the floor. Find the surface area that will be covered with insulation
Answer:
[tex]1,125\ ft^{2}[/tex]
Step-by-step explanation:
we know that
The surface area of the triangular prism that will be covered with insulation is equal to the area of the two triangular faces plus the two lateral rectangular faces
so
[tex]SA=2[\frac{1}{2}(15)(15)]+2[(30)(15)]= 1,125\ ft^{2}[/tex]
What is 5 to the 6th power aka 5x5x5x5x5x5
Answer:
15625
Step-by-step explanation:
5x5=25
25 x 25 x 25=15625
Rose purchased 2 packs of red pens, 4 packs of black pens, and 3 packs of blue pens. The cost of each pack of pens was $2.50. The expression $2.50 • 2 + $2.50 • 4 + $2.50 • 3 represents the total cost of the pens. Which expression also represents the total cost of the pens? A. $2.50 • 2 • 4 • 3 B. $2.50 • (2 + 4 + 3) C. $2.50 + (2 • 4 • 3) D. $2.50 + 2 + 4 + 3
Answer: B
Step-by-step explanation:
If she bought 9 packs of pens at 2.50$ each then she spent 22.50$ on pens. If you add up the packs and multiply by the price you get your answer. 2.50 * (2+3+4) = 22.50$
A line passes through the point (4,–2) and is perpendicular to the line with the equation y = 2⁄3x + 4. What's the equation of the line?
Answer:
y= -3/2x + 1
Step-by-step explanation:
The slope of this line is 2/3. The slope of the line perpendicular to this line will be the negative reciprocal or -3/2.
Write the equation using the slope m=-3/2 and the point slope form.
[tex]y-y_1=m(x-x_1)\\y--2=-\frac{3}{2}(x-4)\\y+2=-\frac{3}{2}(x-4)[/tex]
This is the equation of the line. You can convert it to slope intercept form:
[tex]y+2=-\frac{3}{2}(x-4)\\y+2 = -\frac{3}{2}x + 3\\y=-\frac{3}{2}x +1[/tex]
Need Help ASAP Please
(2b^3 -7b^2) + (3b^2 + 3b^3) =
2b^3 + 3b^3 -7b^2 + 3b^2=
5b^3 -4b^2
Is it a function why or why not ??
it is a function because each input (x) has a unique output (y) that is not repeated
In order for a relationship between numbers x and y to be considered a function from x to y, you need to have one unique y for every x. This doesn’t mean that each y needs exactly one x; for instance, the function y = x² is a function from x to y and has two y values associated with most x values (x = 2 and x = -2, for instance, both give you y = 4).
Essentially, if we give a function some x value, we want to know exactly what y value we’re getting out of it.
The pictured table gives you two possible values for x = 2; given a 2 as input, we have no idea whether to go to 1 or 7 for our output, so it would not be a function from x to y.
(Interestingly, a function from y to x would satisfy that “one output per input” requirement, so if you wanted to impress your teacher, you could answer “yes, but only from y to x, NOT x to y”)
How much do you need to subtract from 53/6 to make 8
To make 8 from 53/6, you need to subtract 5/6. This solution involves converting 8 to the same denominational fraction as 53/6 (which is 48/6) and then subtracting this from 53/6.
Explanation:The question asks how much you need to subtract from 53/6 to make 8. To find out, we start by expressing the desired final number and the given fraction:
Convert 8 to a fraction with a common denominator with 53/6, which is 6, so 8 equals 48/6.To find out how much to subtract from 53/6 to get 48/6, we subtract the two fractions: 53/6 - 48/6.The subtraction gives us 5/6. Therefore, you need to subtract 5/6 from 53/6 to make 8.This demonstrates a basic understanding of fraction subtraction and the concept of working backwards to solve a problem, both of which are key skills in mathematics.
I need help and i need to explain how I got it
Answer:
y = (-1/8)x + 10.5
Step-by-step explanation:
The given equation is y = 8x -1. The slope is 8.
Any line perpendicular to the given equation/line has a slope which is the negative reciprocal of 8: That would be -1/8.
We'll use the point-slope formula of a straight line to come up with a formula for this specific problem: y - k = m(x - h), where (h, k) is the point in question and m is the slope.
Here we have y - 10 = (-1/8)(x - 4). This is complete in itself, But you could also present it in more compact form, as follows:
Add 10 to both sides. We get y = (-1/8)(x - 4) + 10.
Perform the indicated mult.: y = (-1/8)x + 1/2 + 10, or
y = (-1/8)x + 10.5
Cooper’s Storage and Shipping Company is working with a local business to package some office supplies. The supplies are packed inside a cube – shaped box with side lengths 4 ½ in. These boxes are then packed into a shipping box with dimensions of 18 in x 9 in x 4 ½ in. What is the volume of the cube – shaped box? Show your work. What is the volume of the shipping box? Show your work. How many boxes of office supplies can be packed into the larger box for shipping? Show your work.
Answer:
1. Volume of cube-shaped box = 91.125 cubic inches
2. Volume of shipping box = 729 cubic inches
3. 8 boxes of office supplies can be packed into the larger box for shipping.
Step-by-step explanation:
1.
The first question asks for the volume of a cube. The formula is V = s^3, where, s is the side length and V is the volume. Thus plugging in, we get:
[tex]V=s^3\\V=(4\frac{1}{2})^3\\V=(4.5)^3\\V=91.125[/tex]
Volume of cube-shaped box = 91.125 cubic inches
2.
The second question asks for the volume of the shipping box. Since 3 measurements are given, the shipping box is a rectangular prism. The volume of a rectangular prism is V = l * w * h, where
V is the volume
l is the length
w is the width, and
h is the height
Plugging in all the info we know (multiplying the 3 numbers - dimensions), we can get the volume of the shipping box. So:
[tex]V=lwh\\V=(18)(9)(4\frac{1}{2})\\V=(18)(9)(4.5)\\V=729[/tex]
Volume of shipping box = 729 cubic inches
3.
Since the volume of a single box of office supplies (cub-shape) is 91.125 cu. in., and the volume of larger shipping box is 729, we can divide 729 by 91.125 to find how many of them would fit the large box.
[tex]\frac{729}{91.125}=8[/tex]
Hence, 8 boxes of office supplies can be packed into the larger box for shipping.
Answer:
8
Step-by-step explanation:
4 1/2=9/2*9/2=81/4*9/2=729/8
9/1*9/2*18/1=1,458/2
1,458/2*8/729=11,664/1,458
=8
So eight boxs of office supplies can be packed.
What is the area in terms of pi
Answer:
C = 70π cmA = 2,450 cm²Step-by-step explanation:
The perimeter of the given figure is equal to the circumference of whole circle.
The formula of a circumference of a circle:
[tex]C=\pi d[/tex]
d - diameter
We have d = 70 cm. Substitute:
[tex]C=70\pi\ cm[/tex]
The area of given figure is equal to the area of rectangle 70cm × 35cm.
(look at the picture).
The area of a rectangle:
[tex]A=(70)(35)=2,450\ cm^2[/tex]
The system of equations y=-2x+3 and y= x is graphed. What is the solution to the system of equations?
Answer:
1,1
Step-by-step explanation:
I did this earlier today
The solution of the system of equations in terms of (x,y) is (1,1)
The system of equations can either be solved using the simultaneous equation method or the elimination method. Here, we will be using the simultaneous equation method.
Given that:
y = -2x + 3 --- (1)
y = x ---- (2)
Let replace the value of y in equation (2) back to equation (1)
∴
y = -2x + 3 becomes:
x = -2x + 3
x + 2x = 3
3x = 3
x = 3/3
x = 1
Since (x) is = 1
From equation (2), we know that y = x
∴
y = 1
Therefore, we can conclude that the solution of the system of equations in terms of (x,y) is (1,1)
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Answer:
x=4
Step-by-step explanation:
We can find the length of RT by using the Pythagorean theorem
sin theta = opposite side/ hypotenuse
sin 60 = 2 sqrt(3)/ RT
Multiply each side by RT
RT sin 60 = 2 sqrt(3)
Divide by sin 60
RT = 2 sqrt(3)/ sin 60
RT = 4
Then
tan theta = opposite side/ adjacent side
tan 45 = x/RT
tan 45 = x/4
4 tan 45 = x
4 = x
A DVD box set in the shape of a rectangular prism measures 10 inches by 8 inches by 6 inches. What is the surface area of the DVD box set?
Answer:
A=376
the formula is (wl+hl+hw)
Step-by-step explanation:
(5y-12)+(-5y-1) Find the sum or difference.
Answer: -13
Step-by-step explanation:
5y -5y cancel out and the -12-1=-13 and that’s how you get -13.
The sum or difference of the given expression (5y-12)+(-5y-1) simplifies to -13.
Explanation:The original problem presented is to evaluate the expression (5y-12)+(-5y-1). The operation between the two parenthesis is a sum (as indicated by the '+').
To solve, execute the operation in each parenthesis then execute the operation between. The operation inside the first parenthesis is a subtraction, yielding 5y-12. Similarly, the operation inside the second parenthesis is also a subtraction, yielding -5y-1. However, it is a good practice to treat subtraction of whole numbers as adding a negative. Finally, the operation between the two results is a sum (5y-12+(-5y-1)).
The desired result is achieved by applying the appropriate algebraic rules. So, we can rewrite this as: (5y-12) + (-5y -1) = 5y -12 -5y -1 = 0y -13 = -13.
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Draw and compare models of 3/4 of a pizza pie and 6/8 of a same -size pie
Answer:
The two pieces of pizza are same.
6/8 is the equivalent fraction of 3/4
Step-by-step explanation:
From the figure attached with this answer shows the two pizzas. The first figure shows a pizza which is divided into 4 equal parts. Out of this 4 parts 3 parts are colored. This shows 3/4 fraction.
From the second figure we can see a pizza is divided into 8 equal parts, out this 6 are colored. This shows 6/8 fraction.
Compare two pizzas
When we compare this two colored portion we can see both shows same area of circle.
That means 6/8 is equivalent fraction of 3/4
what is 2 times 1/8?
Please help
Answer:
The answer is 1/4
The decimal form is:0.25
Step-by-step explanation:
2/1 x 1/8 + 2x 1/1 x 8+ 2/8= 2 (divide by) 2/ 8 (divide by) 2=1/4
(I added a 1 to 2 because you can't divide a fraction withour two numbers)
I AM NOT A PRO AT MATH ,SO IF I'M WRONG PLEASE LET ME KNOW :)
what is the distance between the points (-3,-1) and (5,1)
The formula for distance is [tex]\sqrt{(x_{2} -x_{1}) } + (y_{2} -y_{1}) }}[/tex]
if we plug our points into the equation we get √68
The volume of a cone is 50 pi cubic feet. Its height is 6 feet. In feet, what is the radius of the cone? Round the answer to the nearest tenth.
Answer:
The radius of the cone is [tex]5\ ft[/tex]
Step-by-step explanation:
we know that
The volume of a cone is equal to
[tex]V=\frac{1}{3}\pi r^{2}h[/tex]
In this problem we have
[tex]V=50\pi\ ft^{3}[/tex]
[tex]h=6\ ft[/tex]
substitute in the formula and solve for r
[tex]50\pi=\frac{1}{3}\pi r^{2}(6)[/tex]
Simplify
[tex]25=r^{2}[/tex]
square root both sides
[tex]r=5\ ft[/tex]
Answer:
5ft
Step-by-step explanation:
I did the test
Three times a number plus 20, is equal to 152. Write an Equation and use it to figure out the number
Answer:
3x + 20 = 152
x= 44
Step-by-step explanation:
Find the missing height in the diagram
Answer:
4 ft
Step-by-step explanation:
12 ft - 8 ft = 4ft
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Choose the correct simplification of (4x3y4z5)(5x4y5z3)
is their operations that you didnt list
Answer: The answer is, 20x7y9z8.
Step-by-step explanation:
What is 28% of 80? please answer as a decimal
Answer:
22.4
Step-by-step explanation:
Is means equals and of means multiply
W = 28% * 80
Change to decimal form
W = .28 * 80
W = 22.4
28 percent of 80 is 22.4
Answer:
22.4
Step-by-step explanation:
80/x = 100/28
80/x = 3.57142857143
times both sides by x
x cancels out on the left and leaves on the right 3.57142857143 x
80/3.57142857143 = x
22.4 = x