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2 years ago

Is the expression 5 + 3x 2always equal to the expression 4x? Explain your answer.

Mathematics

1 answer:

Anna71 [15]2 years ago

8 0

5+3x=4x
only when
x=5
The two expression are only equal at x=5

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A rectangle pool in in your friends yard is 150 x 400 ft

lesya692 [45]

If u are looking for area just multiply 150 by 400 but if you are finding perimeter just do 150 plus 150 plus 400 plus 400

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3 years ago

Bill needs to find the area of the ground covered by a conical tent. The tent is 12 feet tall and makes a 70° angle with the gro

Pie

Answer:

Step-by-step explanation:

To get the area of the cone we need to find the radius first.

tan 70=r/12

r=12tan 70

area of a circle is given by:

A=πr²

thus the area of the ground covered by the tent will be:

A=π(12tan70)²

The answer is

A] A=π(12tan70°)²

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2 years ago

What conic section is drawn by the parametric equations x=csc t and y cot?

Vanyuwa [196]

If we take the square of x and square of y and then subtract them:
(csc t)²-(cot t)²=1 ( this eq. gets from basic identity
x²-y²=1......a 1+cot²x=csc²x)

equation 'a' represent the equation of hyperbola which is (x²/a²)-(y²/b²) =1 with given conditions( a=1,b=1)

So, option D is correct

3 0

2 years ago

Is the enlargement or a reduction? Find the scale factor of the dilation.<br> Explain

malfutka [58]

Good evening ,

Answer:

In this case the dilation is a reduction (as you can see the image triangle is smaller than the original triangle)

and also the scale factor = OA’/OA = 2/6 = 1/3

since -1 < 1/3 < 1 then it’s a reduction.

Step-by-step explanation:

Look at the photo below for more details (notice OA’ and OA).

________________________________________________

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2 years ago

The sum of two numbers is 76 and their difference is 52. Find the two numbers.<br> Please explain

Yanka [14]

Step-by-step explanation:

hope it helps first find one number and then multiply one number by 2

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2 years ago