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3 years ago

1. Using property, simplify:

Mathematics

1 answer:

lorasvet [3.4K]3 years ago

5 0

Answer:

You can only solve this using BODMAS

Step-by-step explanation:

You solve them in this order

B=Brackets

O=Orders

D=Division

M=Multiplication

A=Addition

S=Subtraction

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A Line Segment has the points (1,-2), and (3,-2). What are the new points after its dilated by a scale factor of 3/2 or 1.5

jeka57 [31]

Answer:

The new points after dilation are

(3/2, -3) and (9/2,-3)

Step-by-step explanation:

Here in this question, we want to give the new points of the line segment after it is dilated by a particular scale factor.

What is needed to be done here is to multiply the coordinates of the given line segment by the given scale factor.

Let’s call the positions on the line segment A and B.

Thus we have;

A = (1,-2) and B = (3,-2)

So by dilation, we multiply each of the specific data points by the scale factor and so we have;

A’ = (3/2, -3) and B’= (9/2,-3)

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3 years ago

How to do these two pls help !!!

Blababa [14]

a. i. Calculate the area of the complete semicircunference, and substract the area of both internal semicircunference.

Let A the area that we need to calculate, let B the area of the total semicircunference, and C the sum of the internal semicircunferences.

$A = B - C \\A = \pi (28)^2 - 2\pi (14)^2 \\A = \pi((28)^2 -2 (14)^2) \\A = 392\pi \ cm^2$

a. ii. The same idea. Let P the perimeter that we need to calculate, and let P' the perimeter of the total semicircunference, and Q the sum of the perimeters of the internal semicircunferences.

$P = P' - Q\\P = 2\pi (28) - 4\pi (14)\\P = 56\pi - 56\pi = 0$

b. i $A = 14^2 - 4(\pi (7)^2)/4\\A = 196 - 49\pi\ cm^2$

b. ii $P = 4(14) - 2\pi(7) = 56- 14\pi\ cm$

7 0

3 years ago

Someone please help me on question 2. It’s urgent!

bearhunter [10]

Answer: 3 2/5

Step-by-step explanation:

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4 years ago

Read 2 more answers

*Will Give Brainliest* *Correct Answers Only*

oee [108]

Answer:

$9.46$

Step-by-step explanation:

$\sin \theta=\frac{opposite}{hypotenuse}\\\\ \sin 72=\frac{9}{x}\\\\x=\frac{9}{\sin 72}\\\\x=\frac{9}{0.951057}\\\\x=9.4632\approx 9.46$

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3 years ago

Billy is 80 feet from the base of a building. The angle of elevation to the top of the building is 35 degrees. If the distance f

Ostrovityanka [42]

Answer:

61 ft

Step-by-step explanation:

The detailed step by step solution has been attached in pen and paper format. Feel free to ask any doubt.

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3 years ago