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3 years ago

Needddd helpppppp !!!

Mathematics

2 answers:

alexgriva [62]3 years ago

5 0

Ok, so it defentiality not C. I think its D. Because those rays are pointing different directions its left and right and so is D. I think they used the arrows to try to throw you off.

ser-zykov [4K]3 years ago

3 0

B. I’m pretty sure. Since the arrow is pointing towards the S which is at the beginning.

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Answer:

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3 years ago

Make a the subject of a2+b2=c2

wel

Answer:

$a=\sqrt{c^2-b^2$

⇒ $a=\sqrt{(c+b)(c-b)}$ [Factorized form]

Step-by-step explanation:

Given expression:

$a^2+b^2=c^2$

We need to make $a$ the subject.

In order to do that we need to solve the expression for $a$ in terms of $b$ and $c$

We have,

$a^2+b^2=c^2$

Subtracting both sides by $b^2$

$a^2+b^2-b^2=c^2-b^2$

$a^2=c^2-b^2$

Taking square root both sides in order to remove square of $a$

$\sqrt{a^2}=\sqrt{c^2-b^2}$

$a=\sqrt{c^2-b^2$

The difference of squares can be factorized and written as:

$a=\sqrt{(c+b)(c-b)}$ [difference of squares $x^2-y^2=(x+y)(x-y)$ ]

4 0

3 years ago

Are you study of a population of 1200 frogs you feel that sold out of every 180 frogs in the population has spots on the back ba

Vsevolod [243]

Answer: 1,120 frogs

Step-by-step explanation:

If 12 out of every 180 frogs in the population have spots on their backs, the number that do not are;

= 180 - 12

= 168 frogs

168 frogs out of every 180 do not have spots. Out of 1,200 that would be;

= 168/180 * 1,200

= 1,120 frogs

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3 years ago

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fiasKO [112]

Answer:

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Step-by-step explanation:

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3 years ago

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Fynjy0 [20]

Answer:22478

Step-by-step explanation:

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3 years ago

Read 2 more answers