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Zolol [24]
3 years ago
9

What is the value of x in the equation 25x^2=16? A.+ 5/4 B.+4 C.+ 4/5 D.+16/25

Mathematics
1 answer:
4vir4ik [10]3 years ago
5 0

Answer:

x = ± 4/5

Step-by-step explanation:

25 x^2 = 16

Divide each side by 25

25 x^2 /25 = 16 /25

x^2 = 16 /25

Take the square root of each side

sqrt(x^2) = ±sqrt(16/25)

We know that sqrt(a/b) = sqrt(a)/ sqrt(b)

x = ±sqrt(16) / sqrt(25)

x = ± 4/5

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For #6-10, the word in italics is the one most similar to the first word.

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4 0
3 years ago
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The speed v of a gear varies inversely as the number of teeth t. If a gear that has 42 teeth makes 24 revolutions per minute (rp
fgiga [73]
<span>The speed v of a gear varies inversely as the number of teeth t

</span>
if a gear that has 42 teeth makes 24 revolutions per minute
<span> Then a gear that has 24 teeth will make 42 revolutions.

Hope it helps!
</span>
6 0
3 years ago
Given: WX||YZ ; XY||WZ<br> Prove: WXZ cong. YZW
vampirchik [111]
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3 0
3 years ago
Name the place of the highlighted digit 4 in 5.654
zvonat [6]

Answer:

The answer would be thousandth :)

Step-by-step explanation:

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5 0
3 years ago
Determine the solution(s) of the equation x^2 = 36
ankoles [38]
<h3>hello!</h3>

In order to solve this equation, we need to take the square root of both sides (in order to get rid of the square and isolate x, because we are asked to determine the value(s) of x)

x²=36

√x²=√36

x=6

Is this the only solution?

<em>A negative times a negative is a </em><em>positive...</em>

-6 is another solution of this equation! :)

Hence, the answers are:-

\boxed{\boxed{\bold{x=6; ~x=-6}}}

<h3>note:-</h3>

Hope everything is clear; if you need any explanation/clarification, kindly let me know, and I will comment and/or edit my answer :)

7 0
2 years ago
Read 2 more answers
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