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Olin [163]
3 years ago
5

Evaluate the expression if a = 9 and b = 2. 5(a 3b) 20 51 70 75

Mathematics
1 answer:
devlian [24]3 years ago
5 0
5(a + 3b) = 5(9 + 3(2)) = 5(9 + 6) = 5(15) = 75
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Bailey's rectangular dog pen for his Irish Setter must have an area of 400 square feet. Also, the length must be 20 feet longer
Iteru [2.4K]
Hello.


400=(x+20)x is the equation or 400=x^2+20x 


<span>(x+10)=square root of 500 
</span>

<span>so x+10=10 radical 5 
</span>


<span>final answer -10 + or - 10 radical 5=x 
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Have a nice day
8 0
3 years ago
7=5y-13-y
liberstina [14]

Step-by-step explanation:

7=4y-13

7+13=4y

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8 0
3 years ago
Which statements about the graph of the function f(x) = –x2 – 4x 2 are true? select three options. the domain is {x|x ≤ –2}. the
dsp73

The graph of the function f(x) = –x^2 – 4x +2 are true options 1 and 4 are correct.

We have the given,

The graph of the function f(x) = –x^2 – 4x+ 2

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The set of points at which function is defined.

4. The function is decreasing over the interval (−4, ∞).

From the given graph,

We can say that the above statements are true.

To learn more about graphical functions visit:

brainly.com/question/4025726

8 0
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Which of the following is a polynomial?
Ksivusya [100]

Answer:

Where is the following?

5 0
3 years ago
Read 2 more answers
I need help I been on this problem for a long time
Vadim26 [7]
Well two pairs of SUPPLEMENTARY angles is going to equal a straight line that equals 180 and 10. 180-70 Lol
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