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3 years ago

HELP ME PLEASE ITS NOT THAT HARD

Mathematics

1 answer:

VikaD [51]3 years ago

6 0

Answer:

tan A = 28/45

Step-by-step explanation:

opposite side

the tangent function is defined as tan A = ------------------------

adjacent side

Here the length of the side opposite angle A is 28 and that of the side adjacent to A is 45. Thus, the tangent of angle A is

tan A = 28/45

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What is 3/tan(30°) in radical form? (meant to be a fraction)

Kitty [74]

$\bf y=\cfrac{3}{tan(30^o)}\implies y=\cfrac{3}{\frac{sin(30^o)}{cos(30^o)}}\implies y=\cfrac{3}{\frac{\quad \frac{1}{2}\quad}{\frac{\sqrt{3}}{2}} }\implies y=\cfrac{3}{\frac{1}{2}\cdot \frac{2}{\sqrt{3}}}
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3 years ago

PLEASE HELP 80 –30 23 30

lara31 [8.8K]

Step-by-step explanation:

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3 years ago

Jeremy completes eight extra credit problems on the first day and then for problems each day until the work is complete their 28

Novay_Z [31]

I THINK there is a typo. Instead of "for problems each day", i think it's "four problems each day."

Anyway, we need to find how many days it takes Jeremy to complete the paper.

If he completes 8 problems on the first day and 4 on the rest of the days, after the first day he'll have 28 - 8 = 20 more problems.

And since he does 4 every day with 20 problems: 20 / 4 = 5 days.

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3 years ago

Use the table of integrals, or a computer or calculator with symbolic integration capabilities, to find the indefinite integral.

nignag [31]

Answer:

$-\frac{3}{11}\ln(\cot t + \csc t)+C$

Step-by-step explanation:

We are given: $\int \frac{3}{x\sqrt{121-x^2}} dx$

We will use integration by parts.

$x = 11 \sin t\\dx = 11 \cos t \: dt$

$\int \frac{3}{x\sqrt{121-x^2}} dx=\int \frac{3* 11 \cos t \: dt}{11 \sin t\sqrt{121-121\sin^2 t}} =\int \frac{3* 11 \cos t \: dt}{11 \sin t*11\cos t}} =\\\\= \frac{3}{11} \int \csc t = -\frac{3}{11}\ln(\cot t + \csc t)+C$

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4 years ago

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kotegsom [21]

I believe that it is 425 minutes because 17+(.11×425) is 63.75 and so is .15×425.

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3 years ago