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4 years ago

PLEASE HELP ASSAAAPPP (:

Mathematics

1 answer:

Likurg_2 [28]4 years ago

4 0

In the equation $y=a(b)^x$ , a is the initial amount and b is the growth factor. So our initial amount is 30 and our growth factor is 8.3. Your correct choice for this is A.

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I need help! Greatly appreciated if you do.

kodGreya [7K]

11. 1/4
12.1/10
13.9/40
14.3/8
15.4/5

8 0

3 years ago

Two satellites are orbiting Earth. The path of one satellite has the equation x^2 + y^2 = 56250000. The orbit of the other satel

ExtremeBDS [4]

Answer:

1,257 km

Step-by-step explanation:

The path of one satellite has the equation

$x^2 + y^2 = 56,250,000\\ \\x^2+y^2=7,500^2$

This is the equation of the circle with the center at the origin (Eartg) and the radius of 7,500 km.

The orbit of the other satellite is 200 km farther from the centre of Earth, so the radius of this orbit is 7,700 km.

Find the distances travelled by two satellites:

1st satellite:

$D_1=2\pi r_1=2\pi \cdot 7,500=15,000\pi \ km$

2nd satellite:

$D_2=2\pi r_2=2\pi \cdot 7,700=15,400\pi \ km$

Difference:

$D_2-D_1=15,400\pi -15,000\pi =400\pi \approx 1,257\ km$

6 0

4 years ago

Why is 8x-16 equivalent to 2(4x+8)

Ann [662]

If you distribute what is in the parentheses it equals 8x-16

6 0

3 years ago

As concrete dries, it shrinks—the higher the water content, the greater the shrinkage. If a concrete beam has a water content of

Flauer [41]

A.) Here, w = 550kg/m^3.
Therefore, S = (0.032(550) - 2.5)/10000 = 0.00151

After drying, the beam will be (1 - 0.00151) x 12.027 = 12.009

b.) 0.0012 = (0.032w - 2.5)/10000
0.032w - 2.5 = 12
0.032w = 12 + 2.5 = 14.5
w = 14.5/0.032 = 453 kg/m^3
Therefore, the required water content is 453 kg/m^3

3 0

3 years ago

Complete the equations.<br> look at photo

Jlenok [28]

Answer:

25.8

258.

2580.

Step-by-step explanation:

just move the decimal that many times

8 0

3 years ago

Read 2 more answers