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tigry1 [53]
4 years ago
12

Combine like terms to simplify the expression: 12 + 3y − 8 − 7y =

Mathematics
1 answer:
Charra [1.4K]4 years ago
7 0

Answer:

4-4y

Step-by-step explanation:

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Please help!! Explain how you got the answer!
mash [69]

multiply 3.5 x 3 = 10.5

 add -5 +-10 = -15

 so you have 10.5 x 10^15

 then you need to move the decimal point 1 place to the left to get 1.05

 since you move the decimal point 1 place to the left you add 1 to the -15 to get -14

 so answer = 1.05 x 10^-14


8 0
4 years ago
Find the value of n such that x2-10x+n is a perfect square trinomial.
mihalych1998 [28]
The answer is the last option (Option D), which is:

 D. 25

 The explanation is shown below:

 1. You have that:

 (a ± b)^2=a^2 <span>± 2ab + b^2

 2. The expression given in the problem is:

 </span><span>x^2-10x+n

 Where x^2=a and 2ab=10x

 2b=10
 b=10/2
 b=5

 3. Therefore, you have:

 b^2=5
 b^2=25

 b^2=n
 n=25</span>
7 0
4 years ago
Read 2 more answers
TIME RE
tester [92]

Answer:

see explanation

Step-by-step explanation:

The average rate of change of f(x) in the closed interval [ a, b ] is

\frac{f(b)-f(a)}{b-a}

Here [ a, b ] = [ 4, 7 ], thus

z = \frac{g(7)-g(4)}{7-4}

4 0
4 years ago
The accounting at GEICO notices that the average claim might be larger than $1800, which was previously set as a true average cl
puteri [66]

Answer:

I’m not really sure

Step-by-step explanation:

Look at someone else’s answer

3 0
3 years ago
The radius of a circle is 9 kilometers. What is the circle's area?
krek1111 [17]

A=π r²=π×9²≈254.469km²

r radius is 9km

I hope it helped!!!

8 0
3 years ago
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