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ozzi
3 years ago
10

Perform the indicated operation. 7 + 9 + (-4)

Mathematics
2 answers:
Marrrta [24]3 years ago
8 0
   7 + 9 + (-4) = 16 + (-4)
= 12
e-lub [12.9K]3 years ago
6 0
=12 if we are talking in terms of basic operations.
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Can someone help me with My Homework?
Julli [10]
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3 years ago
Eva's bedroom rug is 2 3/4 ft long and 2 1/2 ft wide what is the area of the rug
den301095 [7]
Exact Form: 55/8
Decimal: 6.875
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5 0
3 years ago
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Solve the system with elimination 4x+3y=1 -3x-6y=3
Nuetrik [128]

Answer:

x = 1, y = -1

Step-by-step explanation:

If we have the two equations:

4x+3y=1 and -3x - 6y = 3, we can look at which variable will be easiest to eliminate.

y looks like it might be easy to get rid of, we just have to multiply 4x+3y=1  by 2 and y is gone (as -6y + 6y = 0).

So let's multiply the equation 4x+3y=1  by 2.

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Now we can add these equations

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5x = 5

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Now we can substitute x into an equation to find y.

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5 0
3 years ago
Which trinomials are perfect square trinomials?
lora16 [44]
Perfect square is
a²+2ab+b²

so just take the square root of the end ones and add then double to get middle term


A.
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B.
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C.
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D.
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B and D
3 0
3 years ago
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nalin [4]

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y =715×30/13

y =1650

after u find the total no it's simple to find the no of females

17/30×1650=935

8 0
3 years ago
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