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3 years ago

Select the correct answer.

Mathematics

1 answer:

oee [108]3 years ago

3 0

Answer:

a² + b² = c²

Step-by-step explanation:

Pythagorean theorem: a² + b² = c²

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Right triangle DEF is shown.

KatRina [158]

Answer:

Step-by-step explanation:

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3 years ago

What is the scale factor of UVW to XYZ?

n200080 [17]

XZ ~ UW
UV ~ XY
VW ~ YZ

Take any corresponding side and the ratio of it is your answer.

Example :

XZ / UW = 14/ 2 = 7
XY / UV = 21 / 3 = 7
YZ / VW = 28 / 4 = 7

Therefore, your answer is B. 7

3 0

3 years ago

Read 2 more answers

Constructed Response Task

pav-90 [236]

The object takes 12 minutes to land on the ground.

Explanation:

Given that the equation for the object's height s at time t minutes after the launch is $s(t)=-16t^2+144t+576$

We need to determine the time that it takes for the object to land on the ground.

<u>Time taken:</u>

The time t of an object can be determined by substituting $s(t)=0$

Thus, we have,

$0=-16t^2+144t+576$

Switch sides,

Thus, we get,

$-16 t^{2}+144 t+576=0$

Let us solve the equation using the quadratic formula.

$t=\frac{-144 \pm \sqrt{144^{2}-4(-16) 576}}{2(-16)}$

$t=\frac{-144 \pm \sqrt{20736+36824}}{-32}$

$t=\frac{-144 \pm \sqrt{57600}}{-32}$

$t=\frac{-144 \pm 240}{-32}$

Thus, the values of t are $t=\frac{-144 + 240}{-32}$ and $t=\frac{-144 -240}{-32}$

Simplifying, we get,

$t=\frac{96}{-32}$ and $t=\frac{-384}{-32}$

$t=-3$ and $t=12$

Since, the value of t cannot be negative, then $t=12$

Thus, the object takes 12 minutes to land on the ground.

7 0

3 years ago

Write a money problem you can solve using sharing, joining, or separating

slavikrds [6]

Answer:

Jonny have 100 dollars and he gave his 2 friend's $20 how much does he have left?

Step-by-step explanation:

100-40=60

Jonny has 60 dollars left

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2 years ago

Gianna just started a running plan where she runs 20 miles the first week and then increases the number of miles she runs by 5%

Debora [2.8K]

I think it increased 56% in two weeks

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2 years ago