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3 years ago

WILL MARK BRAINLIEST. PLEASE ANSWER FAST

Mathematics

1 answer:

Stella [2.4K]3 years ago

6 0

Answer:

can u copy and paste it

Step-by-step explanation:

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How to solve duoble angle formulas with an angle not on the unit circle

lord [1]

I dont really know how to answer tht but hope this helps....A trigonometric equation is one in which the unknown to be solved for is an angle (call it θ) and that angle is in the argument of a trigonometric function such as sin, cos or tan. A trigonometric equation always has an infinite number of solutions, but it is customary to list only those angles between 0° and 360°.

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4 years ago

Martha estimated there were 83 marbles in a jar for a contest. The actual number of marbles in the jar was 105. What was the per

Luba_88 [7]

Answer:

26.5%

Step-by-step explanation:

i did the math, that answer should be correct, but the question is stated strange.

4 0

2 years ago

What is the completely factored form of 8 x square minus 50

goblinko [34]

Lets factor first to see if we can make the problem simple
2(4x^2-25)
now we see that in parenthesis we have 2 square numbers
4x^2=(2x)^2
25=(5)^2
our expression is now
2(2x+5)(2x-5)

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3 years ago

2y-3x=-14 can you figure it out

ahrayia [7]

-3x + 2y = 14
You this way to solve it

8 0

3 years ago

4400 dollars is placed in an account with an annual interest rate of 7.5%. To the nearest tenth of a year, how long will it take

Katarina [22]

Answer:

Step-by-step explanation:

The equation for the amount of money in an account after a certain amount is deposited and compounded after t years once per year is

$A(t)=P(1+r)^t$

Our A(t) = 33800, P = 4400, r = .075 and we are looking for t. Filling in:

$33800=4400(1+.075)^t$ and

$33800=4400(1.075)^t$

Begin by dividing both sides by 4400 to get

$7.681818182=1.075^t$

The only way to move that t our from its current position as an exponent is to take the natural log of both sides and follow the rules for natural logs:

$ln(7.6181818182=ln(1.075)^t$

The power rule of natural logs says we can move that exponent down in front, giving us:

$ln(7.681818182)=t*ln(1.075)$

Divide both sides by ln(1.075) to get

$\frac{ln(7.61818182)}{ln(1.075)} =t$

Do this division on your calculator to get

t = 28.2 years

6 0

3 years ago

Read 2 more answers