3 years ago

The area of a rectangle is 15 square inches. What wil be the area, in square inches, of the rectangle after it is dilated by a

Mathematics

1 answer:

Alex73 [517]3 years ago

5 0

Answer:

60 inches²

Step-by-step explanation:

Unit test

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If f(x)=x^2+4x-12. find f(2)

kaheart [24]

Answer:

f(2) = 28

Step-by-step explanation:

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3 years ago

If an object is shot with an initial velocity of 160 ft/sec, what is the smallest initial angle will you need to obtain a horizo

MrRissso [65]

To solve the question we shall use the formula for the range given by:
Horizontal range, R=[v²sin 2θ]/g
plugging in our values we get:
500=[160²×sin 2θ]/10
5000=160²×sin 2θ
0.1953=sin 2θ
thus:
arcsin 0.1953=2θ
11.263=2θ
hence:
θ=5.6315°~5.63

3 0

4 years ago

The derivative of the function f is given by f′(x)=−3x+4 for all x, and f(−1)=6. Which of the following is an equation of the li

dybincka [34]

Answer:

You are correct. The answer is $y=7x+13$

Step-by-step explanation:

First, we need to plug in our x value to the derviative's equation to find the slope of the line tangent to the graph, f

$f'(x)=-3x+4\\\\f'(-1)=-3(-1)+4\\\\f'(-1)=3+4\\\\f'(-1)=7$

Now that we have found the slope and have a given point: (-1,6) we can use the point slope formula to find the equation of the line tangent to the graph f.

$y-6=7(x+1)\\\\y-6=7x+7\\\\y=7x+13$

3 0

3 years ago

What is the equation of line l?

AveGali [126]

Answer:

-3/2x-2

Step-by-step explanation:

6 0

3 years ago

A player on a school baseball team reaches first base 3 10 of the time he is at bat. Out of 50 times at bat, how many times woul

omeli [17]

Answer:

15 times

Step-by-step explanation:

Proportion of times first base is reached = 3 / 10

If Number of times at bat = 50

Number of times first base is reached :

Proportion * Number of times at bats

3/ 10 * 50

(3 * 50) / 10

(150 / 10)

= 15 times

4 0

3 years ago

Read 2 more answers