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3 years ago

Plz hurry I need help!:)

Mathematics

1 answer:

Marysya12 [62]3 years ago

7 0

Answer:

From left to right

Question one is answer 2: "4"

Question two is answer 2: "6"

Question three is answer 2: "7.5"

Question four is answer 1: "YZ"

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I need help answering

kolbaska11 [484]

1.5(5) = 7.5 and then 7.5 + 20 = 27.5

so after 5 days it will be 27.5cm

6 0

3 years ago

A ball is thrown into the air from a height of 4 feet at time t = 0. The function that models this situation is h(t) = -16t2 + 6

katrin2010 [14]

Answer:

Part a) The height of the ball after 3 seconds is $49\ ft$

Part b) The maximum height is 66 ft

Part c) The ball hit the ground for t=4 sec

Part d) The domain of the function that makes sense is the interval

[0,4]

Step-by-step explanation:

we have

$h(t)=-16t^{2} +63t+4$

Part a) What is the height of the ball after 3 seconds?

For t=3 sec

Substitute in the function and solve for h

$h(3)=-16(3)^{2} +63(3)+4=49\ ft$

Part b) What is the maximum height of the ball? Round to the nearest foot.

we know that

The maximum height of the ball is the vertex of the quadratic equation

Convert the function into a vertex form

$h(t)=-16t^{2} +63t+4$

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$h(t)-4=-16t^{2} +63t$

Factor the leading coefficient

$h(t)-4=-16(t^{2} -(63/16)t)$

Complete the square. Remember to balance the equation by adding the same constants to each side

$h(t)-4-16(63/32)^{2}=-16(t^{2} -(63/16)t+(63/32)^{2})$

$h(t)-(67,600/1,024)=-16(t^{2} -(63/16)t+(63/32)^{2})$

Rewrite as perfect squares

$h(t)-(67,600/1,024)=-16(t-(63/32))^{2}$

$h(t)=-16(t-(63/32))^{2}+(67,600/1,024)$

the vertex is the point (1.97,66.02)

therefore

The maximum height is 66 ft

Part c) When will the ball hit the ground?

we know that

The ball hit the ground when h(t)=0 (the x-intercepts of the function)

$h(t)=-16t^{2} +63t+4$

For h(t)=0

$0=-16t^{2} +63t+4$

using a graphing tool

The solution is t=4 sec

see the attached figure

Part d) What domain makes sense for the function?

The domain of the function that makes sense is the interval

[0,4]

All real numbers greater than or equal to 0 seconds and less than or equal to 4 seconds

Remember that the time can not be a negative number

6 0

3 years ago

Can the GCF of a pair of numbers ever equal one of the numbers

kicyunya [14]

Yes your answer can be one number

5 0

3 years ago

Read 2 more answers

If the typical balance on Lucy's credit card is $650 and the interest rate (APR) on her credit card is 18%, how much in interest

Mariana [72]

$9.75

<h3>Further explanation </h3>

Given:

The typical balance on Lucy's credit card is $650.
The interest rate (APR) on her credit card is 18%.

Question:

How much in interest would you expect Lucy to be charged in a typical month?

The Process:

This problem includes the type of determining simple interest.

$\boxed{ \ I = P \times r \times t \ }$

where,

I = simple interest
P = principal (initial amount)
r = annual interest rate
t = time (in years)

This time we will find out how much in interest we would expect to be charged in a typical month.

The data is as follows:

P = 650
r = 18% or $\frac{18}{100}$ or 0.18
t = $\frac{1}{12}$ year (one month)

Let us calculate how much in interest we would expect to be charged in a typical month.

$\boxed{ \ = 650 \times \frac{18}{100} \times \frac{1}{12} \ }$

$\boxed{ \ = 65 \times \frac{3}{10} \times \frac{1}{2} \ }$

$\boxed{ \ = \frac{195}{10} \times \frac{1}{2} \ }$

$\boxed{ \ = \frac{97.5}{10} \ }$

$\boxed{ \ = \frac{975}{100} \ }$

Thus the amount of interest we would expect Lucy to be charged in a typical month is $ 9.75.

_ _ _ _ _ _ _ _ _ _

Notes

We must be able to distinguish between simple and compound interest. Please learn about this in the link attached below.

<h3>Learn more </h3>

What interest (in dollars) does he receive annually? brainly.com/question/8192969
How much will our account accrue to in 9.5 years brainly.com/question/4127036
What is the total amount owed at the end of the 4 years brainly.com/question/13675435

4 0

3 years ago

Read 2 more answers

Who did the genocide root /frisk/sans/undye/papyurs/<br> who did it???? from undertalee

Tanzania [10]

Answer:

frisk

Step-by-step explanation:

frisk is the one who did it because sans, undyne, and papyrus are all monsters and wouldn't kill their own kind.

5 0

3 years ago

Read 2 more answers