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Svetllana [295]
3 years ago
9

I NEED AN ANSWER PLEASE!

Mathematics
1 answer:
Nata [24]3 years ago
7 0

Answer:

1×-5= -5squared =25+(4×-4squared)=25+(-16)=9

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Y=3x+2 and x+2y=11 how do you solve these linear equations by using substitution
Pani-rosa [81]
Plug in y=3x+2 into the y in the second equation.

x + 2(3x+2) = 11
x + 6x + 4 = 11
7x + 4 = 11
7x = 7
x = 1

then, plug the x value into x in the first equation.

y = 3(1) + 2
y = 3 +2
y = 5
3 0
3 years ago
You have a dog-walking business. You charge $12 per hour. Let's define n as the amount you earn and h as the number of
Goshia [24]

Answer:

n = 12h

Step-by-step explanation:

Given

r = 12/hr --- rate

h \to hours

n \to amount

Required

Determine which solution is correct or incorrect

The solutions are not given. So, I will provide a general explanation

The amount (n) is calculated as:

n = r  * h

So, we have:

n = 12  * h

n = 12h

The above is the general equation to solve for the amount, given h hours

When h = 2.5, we have:

n = 12*2.5

n = 30

8 0
3 years ago
Please help me please
babymother [125]

Answer:11

Step-by-step explanation:ycfucfuxxdttcdftgvyybubhuyubyvtfy

6 0
3 years ago
Tracy took a quiz containing 12 items (questions). If she answered 5/6 of the items correctly, how many items did she answer cor
liubo4ka [24]

Answer:

10 questions

Step-by-step explanation:

12/6=2. 5 X 2 = 10                                                                                    Brainliest please

                                                             

6 0
3 years ago
Read 2 more answers
Which of these equations could represent the blue line?
belka [17]

Hello from MrBillDoesMath!


The first choice (y = 2x) is NOT the blue line because it has twice of the slope of the line y=x. That is,  for a given positive x value the graph of y= 2x  appears above the black line which is not the case for the blue line shown.

The second choice (y =.001x) is a possibility but the multiplier .001 is so small I think the graph of that line would be "close" to the x-axis. I don't think it's the blue line.

y = -x. Now here we can say NO!  That line goes through the origin all right but has a slope of -1 so is heading "downward" from left to right. That is not the blue line either.

Well, then, it seems that the last equation ( y = 1/2x) is the only remaining reasonable answer.


Regards,  MrB.


5 0
3 years ago
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