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valkas [14]
3 years ago
8

Help 13 points!!!!!!!!

Mathematics
1 answer:
DIA [1.3K]3 years ago
3 0

Replace x with a^2:

7(a^2)^2 - 8

Multiply the exponents:

7a^4 - 8

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858 i believe... 
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3 years ago
Help!!! I don’t understand how to do this
Olegator [25]

Answer:

85 degrees

Step-by-step explanation:

the sum of supplementary angles=180

155+ angle in the triangle=180

angle=180-155

angle=25 degrees

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x=180-85

x=95

angle with (?):

the sum of supplementary angles=180

95+(?)=180

(?)=180-95

(?)=85 (An exterior angle of a triangle is equal to the sum of the opposite interior angles)

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3 years ago
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faust18 [17]
I think the answer is D. 
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3 years ago
Help please thank you!
Liula [17]
97 rounds up to 100
78 rounds up to 80
100x80= 8,000
estimate=8,000

97x78=7,566
product=7,566
7 0
2 years ago
Read 2 more answers
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