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masya89 [10]
3 years ago
7

Factor 4z squared plus 4z minus 15

Mathematics
1 answer:
Elina [12.6K]3 years ago
6 0
(2z-3)(2z+5) is your answer!
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Is this right or wrong
Vera_Pavlovna [14]
This os totally right but you forgot to add a period next to each wor. it’s a run on word my dood and nobody likes those.
5 0
4 years ago
Which graph represents the function y = 3*+2?
puteri [66]

Answer:

We can graph y = 2x/3 - 2 to find the line.

We know one point, which is the y-intercept. The y-intercept is (0,-2) so that is our first point. Plot that point on the chart. Now to find another point, we can just insert a number for x and solve for y. I am going to use the number 3.

y = 2x/3 - 2

y = 2(3)/3 - 2

y = 6/3 - 2

y = 2 - 2

y = 0

So when x = 3 y = 0. We have another point,which is (3,0) Plot the points (0, -2) (3, 0) and draw a line between the points and that is your graph.

there ya go

5 0
3 years ago
Rita will rent a car for the weekend. She can choose one of two plans. The first plan has no initial fee but costs $0.90 per mil
Artemon [7]

Let M = #miles driven

 

Plan 1:   .50M + 70  = total cost

Plan 2    .70M = total cost

 

To know how far she would drive to have an equal cost for either plan just set the equations equal to each other

 

.70M = .50M + 70

 

subtract .50M from both sides

 

.20M = 70

 

M = 70/.20 = 350 miles

 

Check the answser:

 

Plan 1:  .50(350) + 70 = 175 + 70 = $245

Plan 2:  .7(350) = $245

they are equal so our answer checks as correct

6 0
4 years ago
How would i solve these
Lapatulllka [165]
Every time you see r, replace it with -3. Every time you see s, replace it with 5. You are working wth exponents, which means that the little number next to the big number (exponent) is how many times you multiply the big number by itself. 
For example, 5^3=5x5x5=125 (isn't one of the problems you are trying to solve)
If the expodent is negative, then you divide. S<span>so if it's like 5^-3, you do 1 ÷ 5 ÷ 5 ÷ 5 = 0.008 </span>
Hope this helps! :)
3 0
3 years ago
The difference of twice a number and 9
Harlamova29_29 [7]

Answer:

I belive that the answer is 8

3 0
3 years ago
Read 2 more answers
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