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Mila [183]
4 years ago
9

What is the anwser to 7(4z+8b)

Mathematics
2 answers:
Reptile [31]4 years ago
7 0
Do 7x4= 28 then add z 
7x8= 56 then add b 
so your answer is 28z + 56b
quester [9]4 years ago
7 0
7(4z+8b) = 28z + 56b
Times 7 by 4z to get 28z
Times 8b by 7 to get 56b
z and b are different so you can't mix them. e.g. zebra's and bears. Therefore, the answer is 28z + 56b.
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How Do I solve this system of equations?<br><br> 5x+4y=-14<br> 3x+6y=6
Makovka662 [10]
3x = -6y + 6 becomes x = -2y + 2 and then you substitute in 5( -2y + 2) + 4y = -14

-10y + 10 + 4y = -14
-6y = -24
6y = 24
y = 4

And then you put y in x = -2(4) + 2 to find x
X = -8 + 2 = -6
x = -6


Then you try in both
5(-6) + 4(4) = - 14 -> -30 + 16 is -14 ✔️
3(-6) + 6(4) = 6 -> -18 + 24 is 6 ✔️
3 0
3 years ago
Read 2 more answers
What is the profitability index of an investment with cash flows in years 0 thru 4 of -340, 120, 130, 153, and 166, respectively
ki77a [65]

The profitability index of an investment with cash flows in years 0 thru 4 of -340, 120, 130, 153, and 166, respectively, and a discount rate of 16 percent is: 15%.

<h3>Profitability index</h3>

First step is to find the Net present value (NPV)  of the given cash flow using discount rate PVF 16% and PV of cash flow which in turn will give us net present value of 49.7.

Second step is to calculate the profitability index

Profitability index  = 49.7/340

Profitability index  = .15×100

Profitability index=15%

Therefore the profitability index of an investment with cash flows in years 0 thru 4 of -340, 120, 130, 153, and 166, respectively, and a discount rate of 16 percent is: 15%.

Learn more about Profitability index here:brainly.com/question/3805108

#SPJ4

3 0
1 year ago
Evaluate 7a -5b when a=5 and b=4
abruzzese [7]

Answer:

55

Step-by-step explanation:

plug in the numbers to the equation

7(5)+5(4)=55

6 0
3 years ago
F(x)= square root of x+2; g(x)=8x-12<br> find f(g(x))
Ann [662]
f(x)=\sqrt{x+2}\\g(x)=8x-12\\f(g(x))=\sqrt{8x-12+2}=\sqrt{8x-10}

4 0
3 years ago
Use the grouping method to factor this polynomial.<br> 3+2x2 +7 x + 14
SVEN [57.7K]

Answer:

7 ( x + 3 )

Step-by-step explanation:

Use order of operations to multiply first.

3+2x2 +7 x + 14

3+4 +7 x + 14

Now group like terms.

3+ 7x + 4 + 14

Add like terms

7x + 21

Find the two multiples of 21.

7x + 7 x 3

Now factor out the 7.

7( x + 3 )

8 0
3 years ago
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