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2 years ago

PLEASEEEE HELPP MEEE WITHHH NUMBERSSS 9 AND 10 PLEASEEE HELPPP MEEEEE!!!!!!!!

Mathematics

1 answer:

Lyrx [107]2 years ago

8 0

Answer:

9: 89°

Step-by-step explanation:

Inside of a triangle is 180, so 180-39-52=89

I'm sorry I can't answer 10 for you

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Write the expression as one<br> involving only sin x and cos x.<br> sin 2x + cos x

AfilCa [17]

Answer:

sin 2x + cos x = 2 sin x cos x + cos x = (2 sin x + 1)cos x

Step-by-step explanation:

Given the expression: sin 2x + cos x,

then we can use the formula: sin 2x = 2 sin x cos x, which gives:

sin 2x + cos x = 2 sin x cos x + cos x = (2 sin x + 1)cos x

So there you have two expressions in terms of sin x and cos x, as requested. :D

6 0

1 year ago

Your garden has a perimeter of 36 feet. what is the length of missing side.

taurus [48]

Answer:

I think the answer is 3 for 1 length side. And in you need 12 for both length sides. So the total is 36 and one side is 12. Since it's a rectangle,you now know two side lengths since they are the same,just opposite from each other. So 12 + 12 = 24. You do 36 – 24 because you need to get the total number for length which is 12. 12 divided by 2 is 6 which is one length side. You can check by doing 6 + 6 + 12 + 12 and you get 36.

Hope this helped!

Can I get brainliest?

8 0

3 years ago

A mechanic charged $220.28 to repair a car. The price included charges for 3 hours of labor and $126.53 for parts. How much does

Assoli18 [71]

Answer:

$31.25

Step-by-step explanation:

Let's set up an equation.

$220. 28 - total

$126.53 - cost for parts

3 - # of hours

? - price per hour

3h + $126.53 = $220.28

Subtract $126.53 from both sides.

3h = $93.75

Divide by 3.

h = $31.25

The mechanic charges $31.25 per hour for labor.

Hope that helps.

6 0

2 years ago

Jayla reads 35% of her book over 7 days. If Jayla reads the same number of pages each night, how many more days will it take her

Elanso [62]

Figure how much percent she reads daily. Then add on till 7 until ur done... For example 7= 35% 14(days)= 70

7 0

2 years ago

PLEASE I NEED THE ANSWER QUICKLY

enot [183]

a. 'x' represents half page advertisement and 'y' represents full page advertisement.

System of equation is given by 42x + 86y = 1192 , x + y =20.

b. Number of full page advertisement Kathryn purchase is equals to 8.

c. Number of half page advertisement Kathryn purchase is equals to 12.

<h3>What is system of equation?</h3>

" System of equation is defined as the finite set of equations for which we find a common solution."

According to the question,

Cost of half page advertisement = $42

Cost of full page advertisement = $86

Number of advertisement Kathryn could purchase = 20

Total budget of Kathryn to purchase advertisement = $1192

'x' represents half page advertisement

'y' represents full page advertisement

As per the situation given system of equation we have,

42x + 86y = 1192 ______(1)

x + y = 20

x = 20 - y _____(2)

Substitute the value of 'x' from system of equation (2) in (1) we get,

$42( 20 -y) +86y =1192\\\\\implies 840 - 42y +86y =1192\\\\\implies 44y = 1192-840\\\\\implies y = \frac{352}{44}\\ \\\implies y =8$

Substitute the value of y in (2) to get 'x' ,

$x=20-8$

= 12

Hence,

a. 'x' represents half page advertisement and 'y' represents full page advertisement.

System of equation is given by 42x + 86y = 1192 , x + y =20.

b. Number of full page advertisement Kathryn purchase is equals to 8.

c. Number of half page advertisement Kathryn purchase is equals to 12.

Learn more about system of equation here

brainly.com/question/13997560

#SPJ3

5 0

1 year ago

Read 2 more answers