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Zigmanuir [339]
3 years ago
7

Evaluate 4a+7b+3a−2b for a =5 and b=−3.

Mathematics
2 answers:
Norma-Jean [14]3 years ago
6 0
4a + 7b + 3a - 2b
Combine like terms
7a + 5b
Plug in the values for a and b.
7(5) + 5(-3)
35 - 15
20
RSB [31]3 years ago
3 0
The answer is 20. I hope this helps.
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★write the pair of integer in which multiplication is -45 and difference is 12.
vladimir1956 [14]

Answer:

(3 and 15)

Step-by-step explanation:

If the product of both of these two numbers needs to be a negative 45 then there are no pair of integers that comply with both requirements.

If the multiplication in the question is wrong and it is a positive 45 then the pair of integers that would comply with these requirements would be (3 and 15). Multiplying this pair together would give you 45 and the difference between them is also 12 meaning it complies with both requirements that were asked for in the question.

5 0
2 years ago
Circle R has equation
Rudiy27

Answer:

The center is (-10,10)  and the radius is 4sqrt(3)

Step-by-step explanation:

(x + 10)^2 + (y - 10)^2 = 48

We can write the equation of a circle as

(x -h)^2 + (y - k)^2 = r^2  where (h,k) is the center and r is the radius

(x-  -10)^2 + (y - 10)^2 = (sqrt(16*3) )^2

(x-  -10)^2 + (y - 10)^2 = (4sqrt(3)) ^2

The center is (-10,10)  and the radius is 4sqrt(3)

5 0
2 years ago
I need help please help
Bogdan [553]
D.

you cannot have a negative amount of rainfall, so the predicted value of -32.4cm doesn't make sense.
8 0
2 years ago
Can someone plsss help me with the 2 one
stepan [7]

Answer: \sqrt{73} for number 7

Step-by-step explanation:

a²+b²=c²

3²+8²=c²

9+64=c²

\sqrt{73}=\sqrt{c^2}\\\sqrt{73}=c

8 0
2 years ago
Which decimal number is equivalent to 7/10
Musya8 [376]

Answer:

0.7

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
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