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3 years ago

Find the value of 0 round to the nearest whole degree

Mathematics

1 answer:

Jlenok [28]3 years ago

4 0

Answer:

27°

Step-by-step explanation:

we have the 'opposite' as length 2 is opposite the angle θ

we have the adjacent (length 4) which is next to the angle θ

the hypotenuse is the longest side (we don't need)

Using SOHCAHTOA

we use TOA as O is opposite and A is adjacent

tanθ = opposite ÷ adjacent

tanθ = 2 ÷ 4

using the inverse sign to find θ

θ = tan⁻¹(2/4) = 27° (to the nearest whole degree)

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3 x A = 30 + 30<br><br> it’s a 3rd grade problem but don’t know the answer

xenn [34]

Answer: A=20

Step-by-step explanation:

3×A=30+30............eqn 1

3A=60

A=60/3

A=20

Substitute A=20 into equation 1

3x20= 30+30

8 0

3 years ago

Evaluate The Expression 3(× - 1)² +2× - 7 for × = 3

jeyben [28]

$\bf 3(x-1)^2+2x-7\implies \stackrel{\stackrel{x=3}{\cfrac{}{}}}{3[(3)-1]^2+2(3)-7}\implies 3[2]^2+6-7 \\\\\\ 3[4]+(-1)\implies 12-1\implies 11$

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4 years ago

Read 2 more answers

If the standard deviation of a normally distributed population is 22.0 and we take a sample of size 4 then the standard error is

lawyer [7]

Answer:

The standard error is 11.

Step-by-step explanation:

Given : If the standard deviation of a normally distributed population is 22.0 and we take a sample of size 4.

To find : The standard error ?

Solution :

The standard error formula is

$SE=\frac{\sigma}{\sqrt{n}}$

Where, $\sigma=22$ is the standard deviation of a normally distributed population

n=4 is the sample size

Substitute the value,

$SE=\frac{22}{\sqrt{4}}$

$SE=\frac{22}{2}$

$SE=11$

Therefore, the standard error is 11.

7 0

3 years ago

PLZZ HELP REALLY QUICK QUICKK QUICKKK HELPP

bixtya [17]

Answer:

$1.62

Step-by-step explanation:

1. To find how much Erin spent, we have to multiply 0.54 by 3.

$0.54 * 3$
$(0.5*3)+(0.04*3)$
$1.5 + 0.12$
$1.62$

Therefore, Erin spent $1.62.

3 0

3 years ago

Suppose that f(x) = x + 4 and g(x) = -x + 3. Find (f )(g)(4).

stellarik [79]

Answer:

-12

Step-by-step explanation:

I am assuming that you want (f*g)(4), which is the product of f and g at x = 4.

If this is actually the case, then one way to evaluate (f*g)(4) is to find f(4) and g(4) separately and then multiply the results together. This gives us

f(4)*g(4) = (8 + 4)*(-4 + 3) = -12

3 0

3 years ago