3 years ago

What does 4×0.2=? equal 15 POINTS

Mathematics

2 answers:

zlopas [31]3 years ago

6 0

<span>What does 4×0.2 = ?
</span>
The answer is 0.8

faltersainse [42]3 years ago

5 0

The answer is 0.8!!!!!!!!!!!!

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2 years ago

N (blank exponent) = 1/64 when n = 1/4

gizmo_the_mogwai [7]

Answer:

The blank exponent is 3

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It is given that n^x=1/64 where n=1/4

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3 years ago

1. tan a = cot(a + 10°)

Temka [501]

Answer:

$a=40+90n$

Step-by-step explanation:

Use a cofunction identity on the right hand side or left hand side...

So $\tan(a)=\cot(90-a)$ .

We have the equation:

$\tan(a)=\cot(a+10)$

Make the above replacement:

$\cot(90-a)=\cot(a+10)$

Since cotangent has period 180 degrees, we can also write this as:

$\cot(90-a+180n)=\cot(a+10)$

So solving the following will give us a set of solutions for $a$ :

$90-a+180n=a+10$

Add $a$ on both sides:

$90+180n=2a+10$

Subtract 10 on both sides:

$80+180n=2a$

Divide both sides by 2:

$40+90n=a$

Symmetric property:

$a=40+90n$

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2 years ago