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3 years ago

I need help please assaaap

Mathematics

1 answer:

max2010maxim [7]3 years ago

4 0

The answer is A. Use the given functions to set up and simplify f(-2).

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Sarah hiked a path that took her from 34 feet below sea level to 52 feet above sea level . What was the change in her elevation?

Ugo [173]

Answer:

86 ft

Step-by-step explanation:

<em>First method: Logical thinking</em>

Think of the position 34 ft below sea level as -34.

The position above sea level is 52.

You need to find the distance between -34 and 52.

You go from 34 ft below sea level, -34 to 0. That is 34 ft.

Then you go from sea level, 0 ft, to 52 ft above sea level. That is 52 ft.

The total is 34 ft + 52 ft = 86 ft

Answer: 86 ft

<em>Second method: Calculate a distance in math</em>

The distance between two points on a number line is the absolute value of the difference of their coordinates. The coordinates are -34 and 52. Subtract the numbers in either order, and take the absolute value of the difference.

|-34 - 52| = |-86| = 86

If you did it in the other order, you'd get the same answer.

|52 - (-34)| = |52 + 34| = |86| = 86

Answer: 86 ft

4 0

3 years ago

The edge of each cube used to build this rectangular prism is 1/3 inch long. Which equation shows the volume of the prism, in cu

KiRa [710]

(1/3) cubed, since the equation for the volume of a cube is an edge, cubed

8 0

3 years ago

Read 2 more answers

Can some one help me with this？

pychu [463]

Answer:

8 in

Step-by-step explanation:

Area = (diagonal 1 x diagonal 2)/2

60 = (diagonal 1 x 15)/2

60 x 2 = diagonal 1 x 15

120 = diagonal 1 x 15

diaognal 1 = 120/15 = 8

3 0

3 years ago

Answer plzzz. Tell the truth and answer correctly

Free_Kalibri [48]

Answer:

54 feet

Step-by-step explanation:

We can use proportions

1 inch 27 inches

--------- = ------------

2 feet x feet

Using cross products

1x = 54

The building is 54 feet

3 0

3 years ago

4. This is a

bixtya [17]

Answer:

Step-by-step explanation:

4). This is an exponential function.

5). Let the equation of this function is,

f(x) = a(b)ˣ

Since, two points (-1, 4) and (0, 6) are lying on the graph of the function,

For (-1, 4),

4 = a(b)⁻¹

4 = $\frac{a}{b}$ --------(1)

For (0, 6),

6 = a(b)⁰

a = 6

From equation (1),

4 = $\frac{6}{b}$

b = $\frac{6}{4}$ = 1.5

Therefore, equation of the function will be,

f(x) = 6(1.5)ˣ

6). Now the value of f(-4) will be,

f(-4) = 6(1.5)⁻⁴

= 1.185

3 0

3 years ago

I need help please assaaap ​

I need help please assaaap