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Licemer1 [7]
3 years ago
9

Out of 150 math students, 86% passed. how many students passed math class?

Mathematics
2 answers:
Minchanka [31]3 years ago
6 0

129 students passed math class

Irina18 [472]3 years ago
3 0

86% is 0.86. You can find this out by multiply 150 by 0.86.


You get 129 students when you do so.

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The area of a square is 9 centimeters squared (cm^2) If the sides of the square are doubled in length, what is the new area, in
Mice21 [21]

Answer:

The question says area of a square = 9 cm squared.

And they said if the sides are doubled in length what is the new length

so new length = 9 cm^2 × 9 cm^2

which should give you 81cm^2

therefore your answer should be = C

7 0
3 years ago
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9c + 1 = 10 what is the answer the algebra way?
const2013 [10]

Answer:

c=1

Step-by-step explanation:

subtract 1 with 10, outcome is 1. subtract both sides by 9 to deduct the 9. and you get 1

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3 years ago
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Use the completing the square method to find the roots of 2x^2+3x-15=13 include the steps, it would be greatly appreciated thank
Monica [59]

Answer:

The roots are

x1= \frac{-3+\sqrt{233}}{4}

x2= \frac{-3-\sqrt{233}}{4}

Step-by-step explanation:

we have

2x^{2}+3x-15=13

so

Group terms that contain the same variable, and move the constant to the opposite side of the equation

2x^{2}+3x=13+15

2x^{2}+3x=28

Factor the leading coefficient  

2(x^{2}+(3/2)x)=28

Complete the square. Remember to balance the equation by adding the same constants to each side

2(x^{2}+(3/2)x+(9/16))=28+(9/8)

2(x^{2}+(3/2)x+(9/16))=233/8

(x^{2}+(3/2)x+(9/16))=233/16

Rewrite as perfect squares

(x+(3/4))^{2}=233/16

square root both sides

(x+\frac{3}{4})=(+/-)\sqrt{\frac{233}{16}}\\ \\(x+\frac{3}{4})=(+/-)\frac{\sqrt{233}}{4}\\ \\x= -\frac{3}{4}(+/-)\frac{\sqrt{233}}{4}

x1= -\frac{3}{4}(+)\frac{\sqrt{233}}{4}=\frac{-3+\sqrt{233}}{4}

x2= -\frac{3}{4}(-)\frac{\sqrt{233}}{4}=\frac{-3-\sqrt{233}}{4}

7 0
3 years ago
Ms. Jones determines that she gives away $800 a month. If she gives 16%
Misha Larkins [42]
Her overall budget would be $5000, If you are using a calculator, enter 800×100÷16, which will give you the answer
3 0
3 years ago
Please answer ASAP. Thank You.​
Usimov [2.4K]

Answer:

(-\infty,-4]

Step-by-step explanation:

So we have the inequality:

x\leq -4

This means that our solution is all numbers <em>less than or equal to </em>-4. Therefore, in interval notation, this is:

(-\infty,-4]

This represents all the numbers from negative infinity up until -4. This is equivalent to the inequality.

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4 years ago
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