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defon
2 years ago
5

Evaluate the expression when b=4 and x= -5 -9x+b

Mathematics
1 answer:
irina1246 [14]2 years ago
3 0
-9x + b
-9(-5) + 4
45 + 4
49
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suppose that f(x) = 4x+7 and g(x) =2x. what is a rule for g(f(x)? what is a rule for f(g(x))? suppose that f(x) = 4x+7 and g(x)
Anastasy [175]
The solution to the problem is as follows:

f o g = 8x + 7 
<span>g o f = 2 ( 4x + 7 ) = 8x + 14
</span>

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
4 0
3 years ago
Find the measure of an angle whose measure is 20° less than the measure of its supplement.
Tasya [4]
Supplementary = angles add up to 180
Measure = 20 less

Labelled as x + (x - 20) = 180

Solve.

x + (x - 20) = 180
             2x = 200
             /2      /2
               x = 100

Angle 1:             Angle 2:
x - 20                  x
100 - 20             100
80

Therefore the angle is 80 degrees.

Proof: 80 + 100 = 180 (supplementary)
100 - 80 = 20 (80 is less than supplement (100)

Hope I helped :))))
3 0
3 years ago
How do you check 4b+6=-2
Verdich [7]

By solving the equation:

4b + 6 = -2

4b = -2 - 6 (taking 6 from each side)

4b = -8

b = -2 (divide both sides by 4)

5 0
3 years ago
Read 2 more answers
Can someone help me with this? I'm confused
lakkis [162]

Answer:

The Answer is B

Step-by-step explanation

7 0
3 years ago
Solve 13 - 2x &gt; 21<br>x&gt;-4<br>x &gt; -17<br>x&lt; -17<br>x&lt;-4​
kherson [118]

Answer:

x>-4

Step-by-step explanation:

13-2x > 21

-13 -13

-2x >8

(-2x)/(-2) >(8)/(-2)

x>-4

8 0
3 years ago
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