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3 years ago

15

I need help I don’t know what is the scoring rate

1 answer:

Semmy [17]3 years ago

3 0

It’s 21 because 252 divided by 12 equals 21

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1+cos2A/cos2A = tan2A/tanA prove LHS=RHS

son4ous [18]

$RTP: \frac{1 + cos(2A)}{cos(2A)} = \frac{tan(2A)}{tan(A)}$

$LHS = \frac{1 + cos(2A)}{cos(2A)}$
$= \frac{1 + \frac{1 - tan^{2}(A)}{1 + tan^{2}(A)}}{\frac{1 - tan^{2}(A)}{1 + tan^{2}(A)}}$
$= \frac{\frac{1 + tan^{2}(A) + 1 - tan^{2}(A)}{1 + tan^{2}(A)}}{\frac{1 - tan^{2}(A)}{1 + tan^{2}(A)}}$
$= \frac{2}{1 - tan^{2}(A)}$
$= \frac{2}{1 - tan^{2}(A)} \cdot \frac{tan(A)}{tan(A)}$
$= \frac{\frac{2tan(A)}{1 - tan^{2}(A)}}{tan(A)}$
$= \frac{tan(2A)}{tan(A)}$
$= RHS$ , as required.

3 0

4 years ago

A factory overseer selects 40 threaded rods at random from those produced that week at the factory, then she

Pachacha [2.7K]

Answer:the population is threaded rods produced at the factory that week the sample is the 40 threaded rods selected

Step-by-step explanation:

6 0

3 years ago

Write a slope intercept form of a linear equation and label what each part represents

luda_lava [24]

Y=mx+b

mx=slope
b=the y intercept
y= value of y in this equation

8 0

4 years ago

10. What is the circumference of a circle with a diameter of 12 in?

OlgaM077 [116]

C≈37.7in

Hope this helped

also could you make me brainliest ty

6 0

4 years ago

Read 2 more answers

Analyze the diagram, then solve for x.

Daniel [21]

9 because if you add 6x and 4x it makes 10x. if youre finding a 90 degree angle then it has to equal 90. 10 x 9 = 90.

7 0

3 years ago

Read 2 more answers