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3 years ago

manny took a cab to a concert. if the cab fare was $14 and he want to leave a 15% tip how much will he pay total

Mathematics

1 answer:

padilas [110]3 years ago

4 0

He would pay $2.10

I hope this helps! (:

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Y = -3x + 1 <br> What is the y-intercept?

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The y-intercept will be 1

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Peregrine falcons are known for their maneuvering ability. In a tight circular turn, a falcon can attain a centripetal accelerat

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3 years ago

In triangle abc, cos A= -0.6. Find A and Tan A

Tresset [83]

Answer:

Part 1) $A=126.87^o$

Part 2) $tan(A)=-\frac{4}{3}$

Step-by-step explanation:

we have

$cos(A)=-0.6$

The cos(A) is negative, that means that the angle A in the triangle ABC is an obtuse angle and the value of the sin(A) is positive

The angle A lie on the II Quadrant

step 1

Find the measure of angle A

$cos(A)=-0.6$

using a calculator

$A=cos^{-1}(-0.6)=126.87^o$

step 2

Find the sin(A)

we know that

$sin^2(A)+cos^2(A)=1$

substitute the value of cos(A)

$sin^2(A)+(-0.6)^2=1$

$sin^2(A)=1-0.36$

$sin^2(A)=0.64$

$sin(A)=0.8$

step 3

Find tan(A)

we know that

$tan(A)=\frac{sin(A)}{cos(A)}$

substitute the values

$tan(A)=\frac{0.8}{-0.6}$

Simplify

$tan(A)=-\frac{4}{3}$

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2 years ago

A cube has a side length of x inches. What expression represents the total volume, in cubic inches, of the cube?

Pie

Answer:

Volume = $x^3$ cubic inches

Step-by-step explanation:

A cube is the 3D version of a square. Since one side length is x inches, all the other side lengths are same, x inches each.

We know,

Volume = area of base * height

THe base is a square and the area is side * side. We know each side is x, so we have:

Area of Square = Area of Base = x * x = $x^2$

Now, we know height is also same side length, x, thus the volume becomes:

Volume = area of base * height

Volume = $x^2*x$

We add the exponents when we have same base multiplied, so the expression for volume becomes:

Volume = $x^2*x=x^3$

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3 years ago

a tool set is on sale for $280. the original price of the tool set was $400. what percent of the original price is the sale pric

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70%

Hope this helps! :)

______________

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