Answer:
86°
Step-by-step explanation:
Supplementary angles add up to 180°. So the supplementary angle of 94° is:
x + 94° = 180°
x = 86°
Which expression is equivalent to
2
3
(3x + 9y) +
1
2
(4x - 2y)?
A) x + 4y
Eliminate
B) 8x - y
C) 4x + 5y
D) 2x + 5y
Answer:
C) 4x + 5yStep-by-step explanation:
[tex]\dfrac{2}{3}(3x+9y)+\dfrac{1}{2}(4x-2y)\qquad\text{use the distributive property}\ a(b+c)=ab+ac\\\\=\left(\dfrac{2}{3\!\!\!\!\diagup_1}\right)(3\!\!\!\!\diagup^1x})+\left(\dfrac{2}{3\!\!\!\!\diagup_1}\right)(9\!\!\!\!\diagup^3y})+\left(\dfrac{1}{2\!\!\!\!\diagup_1}\right)(4\!\!\!\!\diagup^2x})+\left(\dfrac{1}{2\!\!\!\!\diagup_1}\right)(-2\!\!\!\!\diagup^1y})\\\\=2x+(2)(3y)+2x-y=2x+6y+2x-y\qquad\text{combine like terms}\\\\=(2x+2x)+(6y-y)=4x+5y[/tex]
A bicycle tire makes 40 full revolutions while traveling from where Scott is standing to where Steve is standing.
If the tire has a diameter of 20 inches, what is the approximate distance between Scott and Steve
Answer:approximatly 800 inches is the distance between Scott and Steve
Step-by-step explanation: 40 revolutions * 20 inches
The approximate distance between Scott and Steve is 2513.27 inches.
What is an expression?In mathematics, expression is defined as the relationship of numbers, variables, and functions using mathematical signs such as addition, subtraction, multiplication, and division.
Each revolution of the bicycle tire covers a distance equal to the circumference of the tire, which is equal to pi times the diameter of the tire.
The distance travelled by the bicycle tire for 40 full revolutions is:
Distance = 40 x π x 20 inches
Distance ≈ 2513.27 inches
Therefore, the approximate distance between Scott and Steve is 2513.27 inches.
To know more about an expression follow
https://brainly.com/question/22305104
#SPJ3
can someone show me how to do this step by step so i can better understand it in the future? it deals with area, and math isn't my strong subject. thank you!!
The figure is separated into triangles.
The triangle has a base of 8 inches and a hypotenuse of 10 inches.
Using the Pythagorean theorem solve for the height of the triangle:
10^2 = 8^2 + x^2
100 = 64 + x^2
x^2 = 100-64
x^2 = 36
x = √36
x = 6
The height of the triangle is the width of the rectangle and the length of the rectangle is 2 triangle bases ( 8 * 2 = 16)
Area of a rectangle is L x W = 6 x 16 = 96 square inches.
If the price of upholstery fabric is $12.49 per yard, how much will 16 yards cost? A. $201.04 B. $199.94 C. $199.84 D. $189.84
Answer:
c
Step-by-step explanation:
16X12.49=199.84
For this case we can raise a rule of three:
$ 12.49 ---------------> 1 yard
x -------------------------> 16 yards
Where the variable "x" represents the cost of the 16 yards.
[tex]x = \frac {16 * 12.49} {1}\\x = 199.84[/tex]
Thus, the cost of the 16 yards will be 199.84 dollars.
Answer:
Option C
Louise measured the perimeter of her rectangular scrapbook to be 152 cm. If the scrapbook is 42 cm wide, how long is the scrapbook?
A.
76 cm
B.
34 cm
C.
32 cm
D.
68 cm
Answer:
B. 34
Step-by-step explanation:
Perimeter= 42+42+x+x
First add the 42 together
42+42 = 84
Then subtract the number away because this was added to the total
152 - 84 = 68
68 is not your missing number
Dividing 68 by 2 which gives you 34
So,
Perimeter = 42+42+34+34 = 152
A. 30
B. 6
C.32
D.22
Answer:
D. 22
Step-by-step explanation:
Let O be the origin, then we can use the Pythagoras Theorem to obtain:
[tex]|AB|^2=|AO|^2+|OB|^2[/tex]
This implies that;
[tex]|AB|^2=14^2+16^2[/tex]
[tex]|AB|^2=196+256[/tex]
[tex]|AB|^2=452[/tex]
Take positive square root to get:
[tex]|AB|=\sqrt{452}[/tex]
[tex]|AB|=\sqrt{113}[/tex]
[tex]|AB|=21.26029163[/tex]
We round to the nearest whole number to get
[tex]|AB|=21[/tex] units
The closes is 22
Amy collected data to determine how many minutes it takes each member of her freshman track team to run five miles. Identify the striking deviation in her data.
A) 25-30 mins
B) 35-40 mins
C) 45-50 mins
D) 50-60 mins
Consider a striking deviation as an outlier (Something that stands out in a pattern, EX: 2, 3, 4, 4, 4, 5, 5, 10 where the outlier would be 10.) Because there is a piece of data at 25-30 minutes that deviates (Or, separates, in a way), it would be considered an outlier (Or, a Striking deviation). Using this information, we can conclude that the answer would be A: 25-30 minutes.
he Earth completely rotates on its axis once every 24 hours.
A) How long does it take for it to rotate 290 degrees?
B) How long does it take to rotate 7π radians?
C) The diameter of the Earth is approximately 7920 miles. How far will a point on the equator rotate in 2 hours?
Show all work. Give answers to the nearest hundredth. Include the units in your response.
Answer:
A)
58/3 = 19.33 hours
B)
84.00 hours
C)
2074.29 miles
Step-by-step explanation:
Under the assumption the earth is a perfect circle, then in a complete rotation ( 24 hours) the earth will rotate through 360 degrees or 2π radians.
A)
In one day or 24 hours the earth rotates through 360 degrees. We are required to determine the duration it takes to rotate through 290 degrees. Let x be the duration it takes the earth to rotate through 290 degrees, then the following proportions hold;
(24/360) = (x/290)
solving for x;
x = (24/360) * 290 = 58/3 = 19.33 hours
B)
In 24 hours the earth rotates through an angle of 2π radians. We are required to determine the duration it will takes the Earth to rotate through 7π radians. Let x be the duration it takes the earth to rotate through 7π radians, then the following proportions hold;
(24/2π radians) = (x/7π radians)
Solving for x;
x = (24/2π radians)*7π radians = 84 hours
C)
If the diameter of the earth is 7920 miles, then in a day or 24 hours a point on the equator will rotate through a distance equal to the circumference of the Earth. Using the formula for the circumference of a circle;
circumference = 2*π*R = π*D
= 7920*3.142
= 24891.43 miles
Therefore a point on the equator covers a distance of 24891.43 miles in 24 hours. This will imply that the speed of the earth is approximately;
(24891.43miles)/(24 hours) = 1037.14 miles/hr
The distance covered by the point in 2 hours will thus be;
1037.14 * 2 = 2074.29 miles
Please help anyone please
To solve the problem, we need to find the area of the triangle, and then find 2/3 of that triangle.
The equation to find the area of a triangle is bh1/2 or base*height*1/2.
Now substitute the known values.
24*16*1/2
Solve
24*8
192.
Now, the easiest way to find 2/3 of a number is to divide that number by 3 and multiply the answer by 2.
192/3=64
64*2=128
Omar kept 128 square centimeters of the flag.
Hope this helps!
[tex] \frac{16 \times 24}{2} = \frac{384}{2} = 192[/tex]
192 is the total area of the triangle; since he kept 2/3 of the flag divide the area by three and times it by two:
[tex]192 \div 3 = 64 \times 2 = 128[/tex]
answer is 128cm^2
Which pair of functions is not a pair of inverse functions?
A. f(x)= x+1/6 and g(x)= 6x-1
B. f(x)= x-4/19 and g(x)= 19x+4
C. f(x)= x5 and g(x)= 5√x
D. f(x)= x/x + 20 and g(x)= 20x/x-1
ANSWER
A,B, and C
EXPLANATION
If
[tex]f(g(x))=g(f(x))=x[/tex]
then f and g are inverse functions.
A.
[tex]f(x) = \frac{x + 1}{6} [/tex]
[tex]g(x) = 6x - 1[/tex]
[tex]f(g(x)) = \frac{6x - 1 + 1}{6} = \frac{6x}{6} = x[/tex]
B.
[tex]f(x) = \frac{x - 4}{19} [/tex]
[tex]g(x) = 19x + 4[/tex]
[tex]f(g(x)) = \frac{19x + 4 - 4}{19} = \frac{19x}{19} = x[/tex]
C.
[tex]f(x) = {x}^{5} [/tex]
[tex]g(x) = \sqrt[5]{x} [/tex]
[tex]f(g(x)) = (\sqrt[5]{x})^{5} = x[/tex]
D.
[tex]f(x) = \frac{x}{x + 20 } [/tex]
[tex]g(x) = \frac{20x}{x - 1} [/tex]
[tex]f(g(x)) = \frac{ \frac{20x}{x - 1} }{ \frac{20x}{x - 1} + 20} = \frac{20x}{40x - 20} = \frac{x}{2x - 1} [/tex]
The correct answers are A, B , C
The ordered pair (-3,0) is a solution of which system ? Help needed !!! 10 points.
So what I would do is plug in the point into each system:
#1:
y > 0 (-3,0) since y = 0, plug in 0 for y
0 > 0 This can't be true because they are = to each other, so you would need to have a sign of either ≤ or ≥ (less/greater than or equal to) for the point to be a solution to the system
#2 is the same "0 < 0" can't be true
#3
0 ≤ 0 this is true
y > x + 9 Plug in the point (-3,0)
0 > -3 + 9 Simplify
0 > 6 This is false because 0 is not greater than 6
#4
0 ≥ 0 This is true
0 < -3 + 9
0 < 6 This is true because 0 is less than 6
----> 4th option is your answer
Harriet calculated 27 divided 4 = 6.75 how can you find 270 divided 4 without dividing
ANSWER
Rewrite and make substitution.
EXPLANATION
Since Harriet calculated 27 divided 4 and had 6.75.
This means that:
[tex] \frac{27}{4} = 6.75[/tex]
Now we want to find
[tex] \frac{270}{4} [/tex]
without divide.
Therefore we need to rewrite the expression so in terms of
[tex] \frac{27}{4} [/tex]
so that we can substitute.
This will give us;
[tex] \frac{270}{4} = \frac{27}{4} \times 10[/tex]
This implies that,
[tex]\frac{270}{4} = 6.75 \times 10[/tex]
[tex]\frac{270}{4} = 67.5[/tex]
4. I need help with question in the attached picture!
ANSWER
D. 13
EXPLANATION
We have
[tex]f(x) = \frac{2x + 1}{x - 4} [/tex]
To find
[tex] {f}^{ - 1} (3)[/tex]
means we want to find an x-value whose image is 3.
[tex]\frac{2x + 1}{x - 4} = 3[/tex]
We cross multiply,
[tex]2x + 1 = 3(x - 4)[/tex]
Expand:
[tex]2x + 1 = 3x - 12[/tex]
Combine like terms,
[tex]3x - 2x = 12 + 1[/tex]
[tex]x = 13[/tex]
[tex] \therefore{f}^{ - 1} (3)= 13[/tex]
Answer:
Option D is correct.
Step-by-step explanation:
[tex]f(x)= \frac{2x+1}{x-4} \,\,find \,\,value\,\,of\,\, f^{-1}(3)[/tex]
We know that f(a) =b ⇔ f^-1 (b) =a
Using this,
We are given [tex]f^{-1}(3)=x => f(x)=3[/tex]
and [tex]f(x)= \frac{2x+2}{x-4}[/tex]
putting value of f(x)
[tex]3= \frac{2x+1}{x-4}\\3(x-4) = 2x+1\\3x-12 = 2x+1\\Adding\,\,like\,\,terms\,\,\\3x-2x = 12+1\\x=13\\So, f^{-1}(3) = 13[/tex]
Option D is correct.
The graph below represents the average monthly rainfall (y), in inches, in
Miami, FL during 2012 plotted against the time (x), in months. Which of the
following descriptions is representative of the data presented in the graph?
Answer:
The amount of rainfall increases as an exponential function of time.
Step-by-step explanation:
Answer:
C ;
Here is the picture if the letter changes! Sorry, it was hard to screenshot proof!
☆
EDGE2023; Good Luck :3!!
Please help I’m very confused I will mark brainliest
Answer:
$3.52 or $3.53
Step-by-step explanation:
We know that he is paying $2.35 per pound, and that he is buying 1.5 pounds worth of pears. Simply multiply 2.35 times 1.5 to get your answer, depending on how far you round, which is 3.52 or 3.53.
1 pound = $2.35
Leo bought 1 pound and 0.5 of a pound (half of a pound). To find how much 0.5 of a pound costs divide 2.35 (the cost of one full pound) by two
2.35 ÷ 2 = 1.18
so...
1 + 0.5 = 1.5
and
2.35 + 1.18 = 3.53
Leo spent $3.53 on 1.5 pounds of pears
Hope this helped!
~Just a girl in love with Shawn Mendes
given 3 is a zero of the polynomial 2x^3-x^3-13x-6. find its other zeroes
ANSWER
[tex]p(x) =( x - 3)(2{x} + 1)(x + 2)[/tex]
EXPLANATION
The given polynomial is
[tex]2 {x}^{3} - {x}^{2} - 13x - 6[/tex]
If 3 is a root of this polynomial, then
[tex]x - 3[/tex]
is a factor.
We use long division to obtain the quotient as shown in the attachment.
We can the factor the polynomial as:
[tex]p(x) =( x - 3)(2{x}^{2} + 5x + 2)[/tex]
The complete factored form is:
[tex]p(x) =( x - 3)(2{x} + 1)(x + 2)[/tex]
find the quotient. simplify if possible q7÷q26q7÷q26
[tex]\bf q^7\div q^{26}q^7\div q^{26}\implies \cfrac{q^7}{1}\div \cfrac{q^{26}q^7}{1}\div \cfrac{q^{26}}{1}\implies \cfrac{\begin{matrix} q^7 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix} }{1}\cdot \cfrac{1}{q^{26}~~\begin{matrix} q^7 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix} }\cdot \cfrac{1}{q^{26}} \\\\\\ \cfrac{1}{q^{26}q^{26}}\implies \cfrac{1}{q^{26+26}}\implies \cfrac{1}{q^{52}}\implies q^{-52}[/tex]
A cylinder has a volume of 140pi
cubic meters and a height of 14 meters. What is the area of the base?
Answer:
The area of the base is [tex]10\pi m^2[/tex]
Step-by-step explanation:
The volume of a cylinder is calculated using the formula:
[tex]Volume=\pi r^2h[/tex]
The volume is given to be:
[tex]V=140\pi m^3[/tex]
The height of the cylinder is h=14 meters.
We substitute these values into the formula to obtain;
[tex]140\pi=\pi r^2\times 14[/tex]
Divide both sides by 14.
[tex]\frac{140\pi}{14}=\pi r^2[/tex]
[tex]10\pi=\pi r^2[/tex]
The area of the base is a circle which is [tex]\pi r^2=10\pi m^2[/tex]
If a 4 × 16 rectangle has the same area as a square, what is the length of a side of the square?
8 units
First, find the area of the 4 by 16 rectangle. 4 times 16 is 64, so that is the area.
The area of a square is calculated with A = S^2, where A is the area and S is the side length.
So, set 64 to be the area and solve for S. 64 = S^2
The opposite of squaring something is finding the square root. So, find the square root of both sides.
square root of 64 = S
Now, what is the square root of 64? Well, what number when multiplied by itself equals 64? There are actually two possibilities here: -8 and 8. However, -8 cannot be the answer since distance cannot be negative, so 8 is the length of the side.
What is the mode for the data set? 59, 57, 56, 50, 58, 51, 54, 59, 55, 52, 53.
Mode means the number that appears most often in the data. Below I provided a tally of how many each of the numbers appear
59: twice
57: once
56: once
50: once
58: once
51: once
54: once
59: once
55: once
52; once
53: once
As you can see 59 appears the most often, being listed twice in the data set, and is therefore the mode
Hope this helped!
Answer:
your answer would be 59 scenice it goes twice i hope this helps have a great day
Step-by-step explanation:
What would be the appropriate units and intervals to use along the x- and y-axes
X axes are supposed to be positive and the y is negative.
78 * 40
Show your work because I need to figure out how to do multiplication like this the long way thanks!
Answer:
3120
Step-by-step explanation:
step 1:multiply 8 with 0 and 7 with 0
step 2:add a 0 in the end and multiply 8 with 4 . you get 32. take 2 and carry over 3. multiply 7 with 4. you get 28 . add 3 you get 31. now add. you get 3120
Answer:
3120
Explanation:
Step 1: 0 multiply by 8 give 0
Step 2: 0 multiply by 7 give 0
Step 3: put the number 0 in the right side
Step 4: 4 multiply by 8 give 32
Step 5: add the number 3 to the answer we are going to get for 4 multiply by 7 which is 28+3=31
Miguel has a ladder with legs of equal length. He opened the ladder and placed it on the floor. What type of triangle is formed by the ladder and the floor?
Answer:
(B) isosceles
Step-by-step explanation:
An isosceles triangle is one that has two sides of equal length.
___
If the distance between the legs were the same as the leg length, then the triangle would be equilateral. There is nothing in the problem statement suggesting this is the case.
What is the sum of the geometric sequence −4, 24, −144, ... if there are 6 terms?
Answer:
-6718464
Step-by-step explanation:
-4x-6=24
24x-6=-144
and keep on doing times -6 6 more times
Answer: The sum is 25220
Step-by-step explanation:
1) -4
2) -4*-6 =24
3) 24*6 = 144
4) 114*-6 = -864
5) -864*6 = -5184
6) -5184*-6= 31104
The sum is: 25220
The surface area of a plastic ball is 196 pi. A sponge ball has a radius twice that of the plastic ball. What is the surface area of the sponge ball?
A. 9,604 pi
B. 993 pi
C. 784 pi
D. 546 pi
Explain your answer and please show all work.
Answer:
Option C. [tex]784\pi\ units^{2}[/tex]
Step-by-step explanation:
we know that
If two figures are similar, then the ratio of its surface areas is equal to the scale factor squared
Let
z-----> the scale factor
x----> surface area of the sponge ball
y----> surface area of a plastic ball
[tex]z^{2}=\frac{x}{y}[/tex]
we have
[tex]z=2[/tex]
[tex]y=196\pi\ units^{2}[/tex]
substitute and solve for x
[tex]2^{2}=\frac{x}{196\pi}[/tex]
[tex]x=4*(196\pi)=784\pi\ units^{2}[/tex]
Find the missing factor.
5y2 + 4y - 1 = (5y - 1)(
)
Answer:
(y + 1)
Step-by-step explanation:
Given
5y² + 4y - 1
To factorise the quadratic
Consider the factors of the product of the coefficient of the y² term and the constant term which sum to give the coefficient of the y- term
product = 5 × - 1 = - 5 and sum = + 4
The factors are + 5 and - 1
Use the factors to split the y- term
5y² + 5y - y - 1 ( factor the first/second and third/fourth terms )
= 5y(y + 1) - 1(y + 1) ← factor out (y + 1) from each term
= (y + 1)(5y - 1)
If ON= 5x - 7, LM = 4x+ 4, NM = x -7, and OL =3y-4, find the values of c and y for which LMNO MUST BE a parallelogram.
Answer:
x=11, y=8/3
Step-by-step explanation:
Consider quadrilateral LMNO. If this quadrilateral MUST BE a parallelogram, then
LM=NO
and
LO=MN
Thus,
[tex]\left\{\begin{array}{l}4x+4=5x-7\\ \\x-7=3y-4\end{array}\right.[/tex]
Solve this system of two equations. From the first equation:
[tex]4x-5x=-7-4\\ \\-x=-11\\ \\x=11[/tex]
Substitute it into the second equation:
[tex]11-7=3y-4\\ \\3y-4=4\\ \\3y=4+4\\ \\3y=8\\ \\y=\dfrac{8}{3}[/tex]
A number cube is rolled 360 times, and the results are recorded as follows: 41 ones, 54 twos, 62 threes, 75 fours, 33 fives, and 95 sixes. What is the experimental probability of rolling a 2 or a 3?
A : 0.32
B: 0.18
C: 0.07
D: 0.68
They had 54 twos and 62 threes.
54 + 62 = 116 outcomes of either 2 or 3
The probability is the number of outcomes divided by the total number of rolls.
116 / 360 = 0.32
The answer is A.
Answer:
0.32.
Step-by-step explanation:
Prob(Rolling a 2) = number of 2's rolled / total number of rolls
= 54/360 = 0.15
Similarly Prob(rolling a 3) = 62/360 = 0.17.
So the probability of a 2 or a 3 = 0.15 + 0.17 = 0.32.
Find the seventh term of the following sequence? 1.5, 3, 6, ...
A. 96
B. 28
C. 18
Answer:
Option A.
Step-by-step explanation:
The given sequence is 1.5, 3, 6............
We will check first whether the the given sequence is arithmetic or geometric.
For arithmetic sequence
[tex]a_{2}-a_{1}=3-1.5=1.5[/tex]
[tex]a_{3}-a_{2}=6-3=3[/tex]
1.5 ≠ 3, therefore, the given sequence is not an arithmetic sequence.
For geometric sequence
[tex]\frac{a_{2} }{a_{1} }=\frac{3}{1.5}=2[/tex]
[tex]\frac{a_{3} }{a_{2} }=\frac{6}{3}=2[/tex]
2 = 2, therefore, sequence is geometric.
For geometric sequence explicit formula is defined as
[tex]a_{n}=a_{1}(r)^{n-1}[/tex]
[tex]a_{7}=1.5(r)^{7-1}[/tex]
= [tex]1.5(2)^{6}=96[/tex]
Therefore, Option A. is the answer.
Answer:
A, 96 have an amazing day!!!
Step-by-step explanation:
if 3x+1 has a value of 17 for some value of x then the expression 6x+1 will have which of the following?
1)22
2)33
3)35
4)42
Answer:
2) 33
Explanation:
First, identify x.
3x+1=17
3x=16
X=16/3
Then substitute x in the expression.
6x+1=?
6(16/3)+1=?
32+1=?
33=?
So, the answer is #2.
When the equation 3x + 1 equals 17, the value of x is 16/3. Substituting this value of x into the expression 6x + 1 results in an answer of 33.
Explanation:The subject of the question is Mathematics and it appears to be at a High School level. Given the equation 3x + 1 = 17, we can first solve for x by subtracting 1 from both sides resulting in 3x = 16 and then dividing both sides by 3 which gives x = 16/3. Then we can substitute this value of x in the expression 6x + 1 giving us 6*(16/3) + 1 which simplifies to 32 + 1 = 33. So, the value of the expression 6x + 1 is 33 when the value of the expression 3x + 1 is 17.
Learn more about Algebra here:https://brainly.com/question/32436021
#SPJ2