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3 years ago

Help please it's math

Mathematics

1 answer:

qwelly [4]3 years ago

5 0

A) is the correct answer

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Identify the simplest form of each ratio

vichka [17]

Answer:

3:4

8:7

3:4

2:3

8:7

2:3

8:7

3:4

5 0

3 years ago

A tree casts a shadow of 28 feet. At the same time, a biologist who is 7 feet tall casts a shadow of 2 feet.

belka [17]

Assuming that this happened at the same environment like the time of day, then we can use ratio and proportion. We relate the height of the tree with its shadow by using the ratio of the biologist's height to his shadow.

Height of tree/Height of its Shadow = Height of biologist/Height of his Shadow
Height of tree/28 = 7/2
Height of tree = 7*28/2
Height of tree = 98 feet

The answer is D.

4 0

3 years ago

Suppose <br> g(x) = x^2f(x)<br> and it is known that f(3) = 5 and f '(3) = −2. Evaluate g'(3).

vlabodo [156]

g'(x)=(x^2)'(f(x))+(f'(x))(x^2)

g'(x)=(2x)(f(x))+(f'(x))(x^2)

for g'(3)

g'(3)=(2(3))(f(3))+(f'(3))(3^2)

g'(3)=(6)(5)+(-2)(9)

g'(3)=30-18

g'(3)=12

7 0

4 years ago

Write each parabola in the form y-k=a(x-h)^2 aand determine its vertex.

Viefleur [7K]

Answer:

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Rise= ?<br> Run= ?<br> Slope= ?

Dennis_Churaev [7]

Answer:

Rise = 0

Run = 4

Slope = 0

Step-by-step explanation:

Slope of straight line = $\frac{\text{Rise}}{\text{Run}}$

Since, given line is passing through two points (-2, -3) and (2, -3),

Rise of the line = -3 - (-3) = 0

Run of the given line = 2 - (-2) = 4

By substituting these values of rise and run in the formula,

Slope = $\frac{0}{4}$

= 0

Therefore, Rise = 0

Run = 4

Slope = 0

Note: Slope of a line parallel to the x-axis is zero.

Slope of a line parallel to y-axis is not defined.

8 0

3 years ago