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bixtya [17]
3 years ago
5

I will give you guys 100 points if you help me for just these 5 questions please

Mathematics
2 answers:
Leto [7]3 years ago
7 0
Yea i yea yea i i yea yea
nignag [31]3 years ago
3 0

Remember that squaring something is just multiplying that number by itself.

55^2 = 55 \times 55 = 3025

95^2 = 95 \times 95 = 9025

75^2 = 75 \times 75 = 5625

45^2 = 45 \times 45 = 2025

35^2 = 35 \times 35 = 1225

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7x+42 what is x <br> please i need help
Taya2010 [7]

Answer:

x = 6

Step-by-step explanation:

7x = 42

Divide both sides by 7

x = 6

8 0
2 years ago
Read 2 more answers
Which of the following is parallel to the line 2x+4y=16
k0ka [10]

Answer:

Option C: y=-1/2x + 8

Step-by-step explanation:

So we have the options:

A) y=2x+5

B) y=-1/2x+4

C)y=-1/2x+8

D)y=-2x+5

But first let's define what parallel even is. When two lines are parallel it means that there slope is the same value and the same sign, while there y-intercepts are different, because if they were the same, then they wouldn't be parallel, they would just be the same exact line.

So we're given the equation in standard form. To find the slope we can change it so it's in the form of y=mx+b. This can be done by simply isolating y. The reason we want it in the slope-intercept form is because m represents the slope and b represents the y-intercept. m is the slope because as x increases by 1 the y-value will increase by m. So the "rise" will be m and the "run" will be 1, thus the slope will be m/1 or in other words m because the slope is defined as rise/run. So let's start the steps to isolating y

Original equation

2x+4y=16

Subtract 2x from both sides

4y=-2x+16

Divide both sides by 4

y = -1/2x + 4

Here we have it in slope-intercept form. In this case the slope, or m, is -1/2 and the y-intercept or b is 4. So now let's look at the other equations.

Option A: This equation has a slope of 2, which is not the same as -1/2 so it is not parallel

Option B: This equation has a slope of -1/2 which is the same as -1/2 so it might be parallel. But look at the y-intercept it's 4, that's the same y-intercept as the original equation. This means the two equations are equal and not parallel

Option C: This equation has a slope of -1/2 which is the same as -1/2 so it might be parallel. It has a y-intercept of 8 which is not the same as 4, so the two lines are parallel and not equal! This is the answer

6 0
2 years ago
What percent of 12 is 7?<br> Please show work :)
SVETLANKA909090 [29]
It’s 3 hope this helps
5 0
2 years ago
Read 2 more answers
A shark swimming 14 feet below the surface of the water. It descends 15 feet to catch a fish and then ascends 8 feet. Describes
kompoz [17]

Answer:

22 FT

Step-by-step explanation:

14+15-8=22

8 0
3 years ago
Students were surveyed about their favorite colors 1/4 preferred red, 1/8 preferred blue, 3/5 preferred green. If 15 students pr
const2013 [10]

Answer:

Let us assume the total number of students surveyed = x

Then

Number of students preferring red = x/4

Number of students preferring blue = x/8

Then

Number of students remaining = x - [(x/4) + (x/8)]

                                                  =x - [(2x + x)/8)

                                                  = x - (3x/8)

                                                  = (8x - 3x)/8

                                                  = 5x/8

Number of students preferring the color green = (3/5) * (5x/8)

                                                                          = 3x/8

We also know that the total number of students preferring the color green is 15

So

3x/8 = 15

3x = 15 * 8

x = (15 * 8)/3

  = 5 * 8

  = 40

So in total 40 students were surveyed. I hope the procedure is clear to you.

Step-by-step explanation:

6 0
3 years ago
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