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3 years ago

Find the expression as the cosine of an anglecos pi/4 cos pi/9 - sin pi/4 sin pi/9

Mathematics

1 answer:

Vlad1618 [11]3 years ago

4 0

Answer: cos(13pi/36)

Step-by-step explanation: just did the assignment

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-2 (-3x + 3) + 2x = 58

dusya [7]

Answer:

x = 8

Step-by-step explanation:

Given

- 2(- 3x + 3) + 2x = 58 ← distribute and simplify left side

6x - 6 + 2x = 58

8x - 6 = 58 ( add 6 to both sides )

8x = 64 ( divide both sides by 8 )

x = 8

8 0

3 years ago

PLEASE ANSWER ITS IMPORTANT

muminat

So I don’t know if that’s a comma or period..

If it’s 25% of 200,00= $50,000 is what she gets

If it’s 25% of 200= $50 is what she get

5 0

3 years ago

Slove the following equation.<br>6n - 3(n + 2) + 3(7n + 1) = 0

Otrada [13]

Answer:

here is my working out to find answer, if u feel that the answer is wrong then do the reverse calculation by putting n value to the equation. hope u understood and stay safe!

6 0

3 years ago

A target with a diameter of 14cm has 4 scoring zones by concentric circles. The diameter of the center circle is 2 cm. The width

Leni [432]

Answer:

$48.98\%$

Step-by-step explanation:

we know that

The probability that it will hit a point in the outer (yellow) ring is equal to divide the area of the yellow ring by the total area of the target

step 1

Find the area of the yellow ring

$A=\pi [7^{2} -5^{2}]$

$A=24\pi\ cm^{2}$

step 2

Find the total area of the target

$A=\pi [7^{2}]$

$A=49\pi\ cm^{2}$

step 3

Find the probability

$24\pi/49\pi=0.4898$

Convert to percentage

$0.4898*100=48.98\%$

4 0

4 years ago

Read 2 more answers

What is the value of e^infinity and e^-infinity

valentinak56 [21]

E^(∞): This is defined as 'e' being raised to a huge value. Hence the result will definitely be a large number which is also infinity (∞), i.e. e^(∞) = ∞. e^(- ∞) = 1/e^(∞) = 1/∞ = 0.

8 0

3 years ago