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SIZIF [17.4K]
2 years ago
12

NEEDED ASAP! Show your work. Will mark brainliest!

Mathematics
2 answers:
Pani-rosa [81]2 years ago
5 0

Answer:

32 degrees

Step-by-step explanation:

Because the triangle is isosceles, 2 of its angles must equal each other:

15x - 31 = 9x + 11

---> x = 7

Plug 7 into either 15x - 31 and 9x + 11:

15(7) - 31 = 74 degrees

and

9(7) + 11 = 74 degrees

Add them together, and you get 148 degrees.

Finally, subtract 180 from 148 to get 32 degrees for angle S.

nasty-shy [4]2 years ago
3 0
NAHAHAGAHAHAHAUAHAHAHSIISKSJWJSJS
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Which statement is correct?
sladkih [1.3K]

Answer:

c

Step-by-step explanation:

A line that rises from left to right has a positive slope.

4 0
3 years ago
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HELP P L E A S E ! !
alex41 [277]

Answer:

A is true but I dont know the rest I am very sorry   .-.

Step-by-step explanation:

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3 0
3 years ago
Marsha is buying a new cell phone. She has a 45% off coupon from the store. She pays $275 for the cell phone. What is the price
jekas [21]

Answer:

The price of the cell phone without the coupon= $500

Step-by-step explanation:

Step 1: Express discounted amount

The discounted amount can be expressed as a function of the original  cost of the phone as follows;

D=r×A

where;

D=discounted amount

r=coupon rate

A=original price of the cell phone before the coupon

In our case;

r=45%=45/100=0.45

A=a

replacing;

Discounted amount=(0.45×a)=0.45 a

Step 2: Amount she pays up

Amount she pays=Original cost of cell phone-discounted amount

where;

Amount she pays= $275

original cost of cell phone=a

discounted amount=0.45 a

replacing;

$275=a-0.45 a

0.55 a=275

a=275/0.55

a=500

The price of the cell phone without the coupon= $500

7 0
3 years ago
NEED HELP NOW 50 POINTS!!!!!!!!!
puteri [66]
1st. is definitely 150.
2nd. is a i think
3rd. is 100 

8 0
3 years ago
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How to do geometry ex determining angle measures
stiks02 [169]

Answer:

To determine to measure of the unknown angle, be sure to use the total sum of 180°. If two angles are given, add them together and then subtract from 180°. If two angles are the same and unknown, subtract the known angle from 180° and then divide by 2.

6 0
3 years ago
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