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dusya [7]
3 years ago
9

A students cost for last semester was 2000 dollars. She spent 200 dollars of it on that on the books. What percent of college co

st was spent on books
Mathematics
2 answers:
algol133 years ago
6 0

she spent 10% of the total cost on books


lukranit [14]3 years ago
6 0

200/2000=0.1
0.1*100= 10
The answer is 10%

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1/2 × 6<br><br>1/2 × 7<br><br>3/4 × 12<br><br>2/5 × 30​
Minchanka [31]

Answer:

1) 3

2) 3.5

3) 9

4) 12

Step-by-step explanation:

.5*6=3

.5*7=3.5

.75*12=9

.4*30=12

6 0
2 years ago
Read 2 more answers
Which of the following is the area of a quadrilateral with vertices at (-4,2),(1,2),(1,-3) and (-4,-3)
kow [346]

Answer:

The correct option is B.

Step-by-step explanation:

The given vertices are (-4,2),(1,2),(1,-3) and (-4,-3).

Plot these point on a coordinate plate. From the graph it is noticed that the given quadrilateral is a square.

Distance formula:

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Use distance formula to find the side length.

AB=\sqrt{(1-(-4))^2+(2-2)^2}=\sqrt{5^2}=5

BC=\sqrt{(1-1)^2+(-3-2)^2}=\sqrt{(25}=5

Since both consecutive sides are equal therefore it is a square.

Area of a square is

A=a^2

Where, a is side length.

The side length of the square is 5. So, area of ABCD is

A=(5)^2

A=25

Therefore the area of quadrilateral is 25 units square. Option B is correct.

3 0
3 years ago
What is the slope of the line going through the points (-5,-9) and (2,-10)?
Anit [1.1K]
M = - 10 + 9 / 2 + 5
m = - 1 / 3
3 0
2 years ago
For the function f(x) = 8x7, find f-¹(x).
Zanzabum

Answer:

f^-1(x)= \sqrt[7]{x} /8

Step-by-step explanation:

f(x)=8x^7

x^7=f(x)/8

x=\sqrt[7]{x} /8

f^-1(x)= \sqrt[7]{x} /8

6 0
1 year ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=48948%20%5Ctimes%20729555" id="TexFormula1" title="48948 \times 729555" alt="48948 \times 7295
mezya [45]

48948 times 729555 equals 35710258140.

7 0
3 years ago
Read 2 more answers
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