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3 years ago

PLEASE ANSWER FAST!!!

Mathematics

1 answer:

mojhsa [17]3 years ago

8 0

Answer:

The question let's us set up the equation

Hope it helps!

Step-by-step explanation:

160= 16t^2+96t+16 and we just solve for t to get t= 3(sqrt 2 - 1) and -3(sqrt 2 - 1).

Hope it helps!

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Suppose that the cost of drilling x feet for an oil well is C=f(x) dollars. a) What are the units of f'(x)? b) In practical term

antiseptic1488 [7]

A. The term "units" refers to the measurements in the original question or problem. When looking at the question, the units we are measuring are dollars/feet.
B. In this case, the f'(x) means we are looking for the cost (in dollars) to drill the next foot down.
C. Since the cost increases the more feet we drill down, the sign of f'(x) is positive.

6 0

3 years ago

What are the vertices of A'B'C if ABC is dilated by a scale factor of 2?

malfutka [58]

The vertices of A'B'C' if A(0, 10), B(8, 6), C(4, 2) is dilated by a scale factor of 2 are;

C. A'(0, 20), B'(16, 12), C'(8, 4)

<h3>Which method can be used to find the vertices of A'B'C'?</h3>

Given that triangle ABC is dilated by a scale factor of 2, we have;

A'B' = 2 × AB

A'C' = 2 × AC

B'C' = 2 × BC

Length of AB = √((8-0)^2 + (6-10)^2) = 4•√5

Length of AC = √((4-0)^2 + (2-10)^2) = 4•√5

Length of BC = √((8-4)^2 + (6-2)^2) = 4•√2

By multiplying the given coordinates by the scale factor, we have;

A' = 2 × (0, 10) = (0, 20)

B' = 2 × (8, 6) = (16, 12)

C' = 2 × (4, 2) = (8, 4)

A'B' = √((16-0)^2 + (12-20)^2) = 8•√5

A'C' = √((8-0)^2 + (4-20)^2) = 8•√5

B'C' = √((16-8)^2 + (12-4)^2) = 8•√2

Therefore when we have;

A'(0, 20), B'(16, 12), C'(8, 4), we get;

A'B' = 2 × AB

A'C' = 2 × AC
B'C' = 2 × BC

The correct option is therefore;

C. A'(0, 20), B'(16, 12), C'(8, 4)

Learn more about finding the distance between points on the coordinate plane here:

brainly.com/question/7243416

#SPJ1

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2 years ago

Shen will donate up to $440 to charity. The money will be divided between two charities: the City Youth Fund and the Educational

natka813 [3]

Answer:

Step-by-step explanation:

Let the amount donated to City Youth Fund = $x

And the amount donated to the Educational Growth Foundation = $y

Amount donated to the Educational Growth Foundation is at least four times the amount donated to City Youth Fund.

y ≥ 4x ------(1)

Total amount she can donate is up to $440

x + y ≤ 440 ------(2)

And the constraints are x ≥ 0 --------(3)

y ≥ 0 ------(4)

And solution set will be the common shaded area of both inequalities as shown in the graph attached.

(By using a graphing tool we can find the graph).

8 0

3 years ago

Sum of (-2x + 10y) and ( -5x - 8y) in simplest terms

atroni [7]

Answer:

2x + 5y

———————

x + 4y

Step-by-step explanation:

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3 years ago

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Pls help. Question above

GrogVix [38]

What is this type of math called please and what year/grade if you don’t mind me asking so I can be prepared

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3 years ago

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