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mixer [17]
3 years ago
15

If you get 12 how many do you have to get wrong to get an 58%

Mathematics
1 answer:
VladimirAG [237]3 years ago
3 0

Answer:

I'm gonna take some liberty. I assume you mean if there is 12 questions. if so that means you would need to get 5 wrong.

Step-by-step explanation:

Here are step-by-step instructions showing you how we calculated 7 out of 12 as a percentage: The first step is to divide 7 by 12 to get the answer in decimal form: 7 / 12 = 0.5833. Then, we multiplied the answer from the first step by one hundred to get the answer as a percentage: 0.5833 * 100 = 58.33%

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PLEASE HELP ME!!!!!!!!!
vitfil [10]
<h2>1)</h2>

(x - 4) {}^{2}  - 28 = 8 \\ (x - 4) {}^{2}  = 8 + 28 \\ (x - 4) {}^{2}  = 36

This must be true for some value of x, since we have a quantity squared yielding a positive number, and since the equation is of second degree,there must exist 2 real roots.

\sqrt{(x - 4) {}^{2} }  =  ± \sqrt{36}  \\x - 4 = ±6 \\ x _{1}- 4 = 6 \:  \:  \:  \:  \:  \:  \: \:  \:  \:  x _{2}- 4 =  - 6 \\ x_{1} = 6 + 4 \:  \:  \:  \:  \:  \:  \:  \:  \:  \: x_{2} =  - 6 + 4 \\ x_{1} = 10 \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   \:  \:  \: \:  \: x_{2} =  - 2

<h2>2)</h2>

Well he started off correct to the point of completing the square.

(x - 3)  {}^{2}  = 16 \\ x - 3 = ±4 \\  \: x_{1}  - 3 = 4 \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: x_{2}  - 3 =  - 4 \\ x_{1}  = 7 \:  \:  \:  \:  \:  \:  \:  \:  \:  \: x_{2}  =  - 1

8 0
8 months ago
Which expression will determine the perimeter, in inches, of the rectangle? O 10 x 7 10 + 7 O (2 x 7) + (2 x 10) O 10 x 7 x 7 x
fredd [130]

Answer:

(2 * 7) + (2 * 10)

Step-by-step explanation:

The missing details in the question are:

Length = 10

Width = 7

Required

The perimeter

This is calculated as:

Perimeter = 2 * (Length + Width)

So, we have:

Perimeter = 2 * (10 + 7)

Open bracket

Perimeter = 2 * 10 + 2 * 7

Rewrite as:

Perimeter = (2 * 7) + (2 * 10)

3 0
2 years ago
Read 2 more answers
-3=12y-5(2y-7). Solve for y
Yuliya22 [10]
1. distribute the parentheses.
-3=12y-10y+35

2. Move the constants to the other side
-3-35=12y-10y

3. Subtract the terms
-38=2y

4. Divide by 2 to get y by itself
y=-19
4 0
2 years ago
Read 2 more answers
How do you divide fractions?
balandron [24]
Keep change flip. You keep the first fraction the same, change the sign to multiplication and flip the second fraction. Example: 3/4 divided by 1/2 would be worked as 3/4 times 2/1
3 0
3 years ago
Read 2 more answers
If point A is located at (-3,-1) and there are 10 points between A and B, what could be the possible coordinates for point B?
Nataly [62]

Answer:

Step-by-step explanation:

By drawing the point (-3,-1) in the coordinate plane we find the graph shown below. Since there are 10 points between points A and B, we need to start at point A and then we have to move 11 units either to the right, to the left, up, or down .

1. MOVING TO THE RIGHT:

From point A, move 11 units horizontally to the right to come to point B:

(-3+11, -1) = (8, -1)

2. MOVING TO THE LEFT:

From point A, move 11 units horizontally to the left to come to point B:

(-3-11, -1) = (-14, -1)

3. MOVING UPWARD:

From point A, move 11 units vertically upward to come to point B:

(-3, -1+11) = (-3, 10)

4. MOVING DOWNWARD:

From point A, move 11 units vertically downward to come to point B:

(-3, -1-11) = (-3, -12)

So this are the basic movements you can get to find point B. You also can move diagonally upwards or downwards  in whose case you would find other four points. The graph below shows a red point which is A, and the other points are in black color and represent B.

7 0
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