Answer:
=2x2−3x−8
Step-by-step explanation:
Let's simplify step-by-step.
2x2+7x−4−10x−4
=2x2+7x+−4+−10x+−4
Combine Like Terms:
=2x2+7x+−4+−10x+−4
=(2x2)+(7x+−10x)+(−4+−4)
=2x2+−3x+−8
Answer:
=2x2−3x−8
The main height of a basketball team is 6 feet with the standard deviation of 0.2 feet. The team center is 6.9 feet tall. Find the center Z score. Is the score unusual?
Complete Question
The mean height of a basketball team is 6 feet with the standard deviation of 0.2 feet. The team center is 6.9 feet tall. Find the center Z score. Is the score unusual?
Answer:
Center Z score = 4.5
The score is unusual
Step-by-step explanation:
The mean height of a basketball team is 6 feet with the standard deviation of 0.2 feet. The team center is 6.9 feet tall. Find the center Z score. Is the score unusual?
The formula for z score is:
z = (x-μ)/σ, where
x is the raw score = 6.9feet
μ is the population mean = 6feet
σ is the population standard deviation = 0.2 feet
Hence:
Z = 6.9 - 6/0.2
Z = 0.9/0.2
Z = 4.5
Yes this score is unusual
The measure of ∠A is 12° greater than the measure of ∠B. The two angles are complementary. Find the measure of each angle.
The m∠A is __° and m∠B is __°.
Answer:
39° = m∠A
51° = m∠B
Step-by-step explanation:
Complementary angles have a sum of their measures = 90
Let x = m∠B
then x + 12 = ∠A
m∠A + m∠B = 90
x + 12 + x = 90
2x + 12 = 90
2x = 78
x = 39° = m∠A
x + 12 = 39 + 12 = 51° = m∠B
The measure of ∠A is 39°.
The measure of ∠B is 51°.
Here,
The measure of ∠A is 12° greater than the measure of ∠B.
The two angles are complementary.
We have to find the measure of each angle.
What is Complementary angle?
Complementary angles have a sum of their measures is 90°.
Now,
The measure of ∠A is 12° greater than the measure of ∠B.
Let m∠B = x
Then, ∠A = x + 12
The two angles are complementary.
Hence,
m∠A + m∠B = 90
x + 12 + x = 90
2x + 12 = 90
2x = 78
x = 39°
And, x + 12 = 39 + 12 = 51°
Hence, The m∠A is 39° and m∠B is 51°.
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what angles are they
Answer:
option d. vertical opposite angle
The sum of the measures of the external angles of any polygon is
Answer:
The sum of all the exterior angles in a polygon is equal to 360 degrees.
Hope this helps you. Do mark me as brainliest.
D
х
find the distance between each
pair of point. round your answer to
the tenths place. (3,1)and (3,7)
Answer:
6
Step-by-step explanation:
Point 1
(xA,yA) = (3, 1)
Point 2
(xB,yB) = (3, 7)
Distance between two points =
√(xB−xA)^2+(yB-yA)^2
Solution :
Distance between two points =
√(3−3)^2+(7−1)^2=
√0^2+6^2=
√0+36= √36 = 6
Distance between points (3, 1) and (3, 7) is 6
Tickets for an all-you-can-eat pancake breakfast cost $15 each. Which equation shows the relationship between c, the total cost of the breakfast tickets and t, the number of breakfast tickets bought? * 5 points c = 15t t = 15c c = t + 15 t = c + 15
Answer:
a) c = 15t
Step-by-step explanation:
c = the total cost of the breakfast tickets
t = the number of breakfast tickets bought
Tickets for an all-you-can-eat pancake breakfast cost $15 each
Therefore, the equation that shows the relationship between c, the total cost of the breakfast tickets and t, the number of breakfast tickets bought is written as:
c = $15 × t
c = 15t
Option a is the correct option
A clothing retailer is gathering data on the amount of time each customer spends shopping in its stores. Each location collected 20 pieces of data and will compile that data to determine a population mean. One location has a sample mean of 32.5.
Which statement must be true about this situation?
A.
There is not enough information to make a conclusion about the population mean.
B.
The population mean must be less than 32.5.
C.
The population mean is also 32.5.
D.
The population mean must be greater than 32.5.
Answer:
There is not enough information to make a conclusion about the population mean.
Step-by-step explanation:
Answer:
There is not enough information to make a conclusion about the population mean.
Step-by-step explanation:
Got it right on edmentum
Bling sold muffins at her club's bake sale. She spent $28.50 on
supplies. She sold her muffins for $0.75 each, and made a total of
$36.75
Write and solve an equation to find out how many muffins Bling
sold.
Answer:
sorry but i dont know the answer
Step-by-step explanation:
because i didnt have brain
Answer:
Step-by-step explanation:
Given : Bling spent $28.50 on supplies.
He sold his muffins for $0.75 each.
Profit he made = $36.75
Total money he made = Money he made in supplies + Profit he made
= $28.50 + $36.75
= $ 65.25
Then, the number of muffins he made = (Total money he made ) ÷ ( Cost of each muffin)
=( $ 65.25) ÷ ($0.75 )
= 87
Hence, the number of muffins he made = 87.
5/2=d-2/4 and another one 2x/5=9/15
PLEASE HELP
D = 3 for First one and the Second one is
x^2-4x+3=0 determine the nature of the roots
x^2 - 4x + 3 = 0
Factor the left side.
What two numbers when multiplied yield 3 but when added yield the middle coefficient -4?
How about -1 times -3?
Yes, (-1)(-3) is 3 but when added yield -4.
(x - 3)(x - 1) = 0
Set each factor to 0 and solve for x.
x - 3 = 0
x = 3
x - 1 = 0
x = 1
The word root is just another word for solution or the zero of a polynomial.
Answer: x = 1 or x = 3 are the roots.
Need help don’t like math help
Answer:
ones place=3
hundredths place =0
Step-by-step explanation:
Explore equivalent ratios by using the slider. Complete the sentences below. For every __ apples, there are 6 oranges.
Answer:
For every 2 apples, there are 6 oranges
Step-by-step explanation:
I got it on khan so trust me
(P. S. could u give me brainliest?)
Question #1 Pls help
Answer:
C. Strong Positive Linear Relationship
Step-by-step explanation:
If you were to draw a line through the points all of the points would be near the line therefore it has a strong correlation
The points are going upwards from left to right which indicates that the relationship is positive
From this information we can make a conclusion
This scatter plot has a strong positive linear relationship
In circle O, central angle BOC has a measure of 115°. Find the measure of arc BAC. In your final answer, include all of your work.
Answer:
m<BOC = m<DOA= 115*
m<BOC + m<COD=180*
115* + m<COD + 180* ---> m<COD + 65*
m<COD +m<BOA + 65*
m<COD + m<DOA + m<AOB + m<BAC
m<BAC + 65* + 115* + 65* =245*
m<BAC = mBAC = 245*
Step-by-step explanation:
The measure of arc BAC of the circle O will be 245°.
What is a circle?It is the close curve of an equidistant point drawn from the center. The radius of a circle is the distance between the center and the circumference.
In circle O, the central angle ∠BOC has a measure of 115°.
The measure of arc BAC will be given as,
∠BOC + arc BAC = 360°
115° + arc BAC = 360°
arc BAC = 360° - 115°
arc BAC = 245°
The measure of arc BAC of the circle O will be 245°.
More about the circle link is given below.
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What is the average rate of change over the interval 1≤x≤3
9514 1404 393
Answer:
3
Step-by-step explanation:
The average rate of change is the slope of the line between the points at the ends of the interval: (1, -2) and (3, 4). That is given by the slope formula ...
m = (y2 -y1)/(x2 -x1)
m = (4 -(-2))/(3 -1) = 6/2
m = 3
The average rate of change on the interval is 3.
Show your work and find the solution to the following system using substitution or elimination:
y = 2x - 1
y = 5x - 7
Which value from the set {3, 12, 18, 27} makes true?
????????????
Answer:
The answer would be 27
Step-by-step explanation:
You need to multiply 9 to both sides. Please mark me brainliest.
A square has a diagonal length of 13m what is the side length of the square round to the nearest centimeter?
Answer:
a≈9.19m
Step-by-step explanation:
Identify the equivalent expression to the square root of x plus 3
Answer:
[tex] {x}^{2} + 3 [/tex]
Help please i'm confused. . . .
Answer:
im on it
Step-by-step explanation:
1. 28.26 cm2 (I)
2. 50.24 in2 (O)
3. 314 m2 (L)
4. 12.56 cm2 (shaded)
5. 254.34 ft2 (F)
6. 4.5216 km2 (A)
7. 7850 in2 (G)
8. 379.94 m2 (shaded)
9. 19.625 cm2 (U)
10. 153.86 in2 (T)
11. 78.5cm2 (O)
12. 7.065 m2 (shaded)
13. 200.96 m2(Y)
14. 1256 m2 (M)
15. 113.04 in2 (F)
16. 38.465 cm2 (L)
17. 0.2826 km2(H)
18. 3.14 cm (F)
you do the rest, im tired
hope this helps
take care, stay safe, be careful, and live
-kenma #3
Please help me thanks
Answer:
2
Step-by-step explanation:
Type the missing number in this sequence:
1,
,
36,
216,
1,296
Quadrilateral FGHI is dilated by a scale factor of to form quadrilateral F'G'H'I.
What is the measure of side I'F'?
H
62.6
I
56
28
56
Answer:
I’F’ = 21
Step-by-step explanation:
To find the length of I’F’
We perform the dilation on IF using the given dilation factor
All we have to do here is to multiply the length of IF by the dilation factor
We have this as ;
28 * 3/4 = 21
Which types of dilation are the given scale factors? Select Expansion or Contraction to correctly describe the type of dilation for each given scale factor.
Answer:
Expansion
Contraction
Expansion
Contraction
Step-by-step explanation:
The correct type of dilation for given scale factors are 1) contraction, 2) contraction, 3) expansion 4) contraction
What is dilation?Dilation is a type of transformation in geometry, in which the original figure changes its scales, either reduce or enlarge.
Given are scale factors,
Scale factor symbolized by k,
We know that, when k > 1, the figure expands or enlarge.
When k < 1, the figure reduces or contract.
And when k = 1, the figure is congruent to the dilation.
1) -5 = (contraction)
1 > -5, therefore, figure is contraction.
2) -1/4 = (contraction)
1 > -1/4, therefore, figure is contraction.
3) 3.5 = (expanding)
1 < 3.5, therefore, figure is expanding.
4) 6/7 = (contraction)
6/7 = 0.8571 < 1, therefore, figure is (contraction)
Hence, -5 = (contraction), -1/4 = (contraction), 3.5 = (expanding) and 6/7 = (contraction)
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Two possible plans for a new bathroom are shown. Is there a value of x for which the perimeters are equal? Show your work. Explain the reasoning.
Answer:
There is no value of x to fit this requirement.
Step-by-step explanation:
The 2 perimeters in terms of x are:
4(x + 3) for the square and
2(x+1) + 2(x +4) for the rectangle
and these need to be equal so
we equate these 2 and solve for x:
4(x + 3) = 2(x+1) + 2(x +4)
4x + 12 = 2x + 2 + 2x + 8
4x + 12 = 4x + 10
4x - 4x = 10 - 12
0 = -2 which is of course absurd so there is no solution to this equation.
Answer:
(x+3)•4=(x+4)•2+(x+1)•2
Step-by-step explanation:
4x+12=2x+8+2x+2
4x-2x-2x=-12+8+2
0=-2
this expression is indeterminate.
Expressed in simplest radical form, the product of √6 and √15 is
For the animal shelter, Ellen purchased five dog leashes for $9.98 each, five bags of dog food for $24.99 each and five dog crates for X dollars each.
Which equation could be used to determine Ellen's total cost, T?
Answer:
49.9+124.95+5x=T
Step-by-step explanation:
Equation
Select all the values that are equivalent to -(7/8)
Answer:
last option
the correct answer is
- (- 7 / - 8)
y2-2y+6 for y=2is who did first is the brainliest and you will be followed only the first person
Answer:
6Step-by-step explanation:
to understand thisyou need to know about:algebraPEMDASgiven:y²-2y+6y=2let's solve:substitute the value of y:2²-2.2+6simplify exponent:4-2.2+6simplify multiplication;4-4+6simplify addition:4+2simplify addition:6Answer:
6
y2-2y+6
since y= 2
22-22+6
=6
Please solve this problem by factoring
Answer:
x=5
Step-by-step explanation:
Answer:
x is equal to 5
Step-by-step explanation:
[tex]\frac{5}{2x - 2} =\frac{15}{x^2 - 1} \\\\\frac{5}{2(x - 1)} =\frac{15}{(x + 1)(x - 1)} \\\\\frac{5}{2} =\frac{15}{(x + 1)} \\\\\frac{1}{2} =\frac{3}{(x + 1)} \\\\x + 1 = 6\\\\x = 5[/tex]