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3 years ago

Ahmed wrote two numbers. The first number has a 7 in its tenths place. The

Mathematics

2 answers:

Colt1911 [192]3 years ago

7 0

Answer: i think the answer is B thousands

Step-by-step explanation:

RoseWind [281]3 years ago

5 0

I think it is hundreds because .7•1000=100 which would be in the hundreds place.

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Four less than the square of a number is 0

marusya05 [52]

Answer:

± 2

Step-by-step explanation:

let the number be n , then

n² - 4 = 0 ( add 4 to both sides )

n² = 4 ( take square root of both sides )

n = ± $\sqrt{4}$ = ± 2

The number is - 2 or 2

5 0

3 years ago

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John predicts the basketball team will score 68 points. If the basketball team

pav-90 [236]

The answer is i don’t know but am answering this for points ):

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3 years ago

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!<br><br> Factor.<br><br> 64x^9 − 125y^6

OleMash [197]

The answer is

(4x^3 - 5y^2) (16x^6 + 20x^3 y^2 +25y^4)

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3 years ago

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Explorers on a planet with a thin atmosphere want to measure the acceleration of gravity at its surface. So they use a spring gu

Murljashka [212]

Answer:

The value of $g_s$ is $g_s=\frac{30}{21} \:\frac{m}{s^2}$ .

Step-by-step explanation:

We know that the position function is given by

$s(t)=30t-\frac{g_s}{2} t^2$

Velocity is defined as the rate of change of position. Therefore,

$v(t)=\frac{d}{dt}(s(t))$

So, the velocity function is

$v(t)=\frac{d}{dt}(s(t))\\\\v(t)=\frac{d}{dt}(30t-\frac{g_s}{2} t^2)\\\\\mathrm{Apply\:the\:Sum/Difference\:Rule}:\quad \left(f\pm g\right)'=f\:'\pm g'\\\\v(t)=\frac{d}{dt}\left(30t\right)-\frac{d}{dt}\left(\frac{g_s}{2}t^2\right)\\\\v(t)=30-g_st$

When a body reaches a vertical velocity of zero, this is the maximum height of the body and then gravity will take over and accelerate the object downward. Thus,

$v(t)=30-g_st=0\\\\g_s=\frac{30}{t}$

We know that the ball bearing reaches its maximum height 21 seconds after being launched (t = 21 s).

So, the value of $g_s$ is $g_s=\frac{30}{21} \:\frac{m}{s^2}$ .

5 0

3 years ago

Find the length of the arch

posledela

Use the formula....central angle/360= arc length/2* pie* R
150/360=x/2*3.14*7.5
150/360=x/47.1
360x=7065
x=7065/360
x=19.625 in

8 0

3 years ago