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Afina-wow [57]
3 years ago
14

-10÷_100(20+501) that is my home work

Mathematics
1 answer:
KIM [24]3 years ago
5 0

Answer:

-52.1

Step-by-step explanation:

-10/100 = -0.1

-0.1 x 20 = -2

-0.1 x 501 = -50.1

                  +    -2

                   ____

                -52.1

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Mrs. Datz had to make a visit to the bank because her account was overdrawn
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The answer of this question is $68.

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A right prism has height 7½ and triangular bases with sides of length 5, 12, and 13 What is the: Total Surface Area of the Prism
sdas [7]

Given:

A right prism has height 7½ and triangular bases with sides of length 5, 12, and 13.

To find:

The total surface area of the prism.

Solution:

We have,

Height of prism = 7½ = 7.5

Sides of triangular base are 5, 12, 13. These sides of Pythagorean triplets because

5^2+12^2=13^2

25+144=169

169=169

So, the base of the prism is a right triangle.

Area of a triangle is

Area=\dfrac{1}{2}\times base \times height

A_1=\dfrac{1}{2}\times 5\times 12

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The area of the base is equal to the area of the top, i.e., A_2=30 sq units.

Perimeter of the base is

P=5+12+13

P=30

The curved surface area of the prism is

CSA=\text{Perimeter of the base}\times \text{Height of the prism}

CSA=30\times 7.5

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Now, the total area of the prism is

A=A_1+A_2+CSA

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Therefore, the total surface area of the triangular prism is 285 square units.

5 0
3 years ago
What is the value of -3 2/3 +1/3
emmainna [20.7K]

Exact Form:

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Decimal Form:

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Mixed Number Form:

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Please help!!!!!!!!!!
Delicious77 [7]

f(x)=2x^2-4x+1

Substitute the values of x to the equation of the function f:

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Therefore we have two points (-1, 7) and (2, 1).

We can calculate the slope of line l.

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

Substitute:

m=\dfrac{1-7}{2-(-1)}=\dfrac{-6}{3}=-2

<h3>Answer: A) -2.</h3>
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