2 years ago

How to solve and answer please.

Mathematics

1 answer:

jek_recluse [69]2 years ago

7 0

Answer:

sin 77°

cos 49°

tan 22°

Step-by-step explanation:

use your calculator with trig functions to find the arcsin, arccos, and arctan

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Please help<br> me = lazy

forsale [732]

Answer:

1.) $13\frac{3}{10}\\$

2.) $11\frac{3}{4}\\$

3.) $11\\$

4.) $12\frac{1}{30}$

5.) $7\frac{11}{15}$

6.) $5\frac{4}{5}$

Step-by-step explanation:

I did 6 problems for you. You can now do the other 4 problems and see how I did it. You need to have the same denominator and the add the fractions together.

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2 years ago

A bag contains 8 red marbles, 6 white marbles, and 6 blue marbles. find P (red or blue)

vlabodo [156]

I'm assuming you're supposed to find the chance of them drawing red or blue/
So the whole is 20, and red and blue combined is 14.So its 14/20, which is 70%, and as a simplified fraction it is 7/10.

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3 years ago

The equation of a curve is y=f(x). the curve goes through the points (1,3) and (3,7). f'(x) = 4x+p, where p is a number.

Nimfa-mama [501]

$f'(x)=4x+p\\
f(x)=2x^2+px+C\\\\
3=2\cdot1^2+p\cdot1+C\\
7=2\cdot3^2+p\cdot3+C\\\\
3=2+p+C\\
7=18+3p+C\\\\
C=1-p\\
3p=-11-C\\\\
3p=-11-(1-p)\\
3p=-11-1+p\\
2p=-12\\
p=-6\\\\
C=1-(-6)\\
C=7\\\\
y=2x^2-6x+7
$