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3 years ago

PLEASE HELP ASAP!! THANK YOU!

Mathematics

1 answer:

BARSIC [14]3 years ago

6 0

187373828282746282847828274737282

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Given a point A(-3,-1), it is dilated by some scale

Sidana [21]

Answer:

$B' = (-3, -15)$

Step-by-step explanation:

Given

$A = (-3,-1)$

$A' = (-9,-3)$

$B = (-1,-5)$

Required

Determine the coordinates of B'

Since A' is the image of A; we need to first calculate the scale factor using

$A' = A * Scale\ factor$

Make Scale Factor the subject

$Scale\ Factor = \frac{A'}{A}$

Substitute values for A' and A

$Scale\ Factor = \frac{(-9,-3)}{(-3, -1)}$

Factorize the numerator

$Scale\ Factor = \frac{3 * (-3,-1)}{(-3, -1)}$

$Scale\ Factor = \frac{3 * 1}{1}$

$Scale\ Factor = 3$

The coordinates of B' is then calculated as follows:

$B' = B * Scale\ Factor$

Substitute values for B and Scale Factor

$B' = (-1,-5) * 3$

$B' = (-3, -15)$

3 0

3 years ago

What does this verse teach about our speech? "Settle it therefore in your hearts, not to meditate before what ye shall answer: F

Ierofanga [76]

B. God will give you the words.

5 0

3 years ago

I cant figure out the answer for this lol

sveta [45]

Probably d? ........

8 0

3 years ago

Correctly complete this sequence: 131, 517, ?, 123

antoniya [11.8K]

Answer:

192 is the missing number in the sequence.

Step-by-step explanation:

Given sequence is 131, 517, ?, 123.

First write the numbers without comma as 131517?123.

Break it in two digit numbers as 13, 15, 17, _ _ 23

Complete the sequence with the missing two digit odd numbers.

13, 15, 17, 19, 21, 23

Now rewrite the sequence without comma again.

131517192123

Place the comma after every three digits.

131, 517, 192, 123

Therefore, the missing number is 192.

5 0

3 years ago

Read 2 more answers

A surveyor wants to know the length of a tunnel built through a mountain. According to his equipment, he is

MrMuchimi

Answer:

Length of the tunnel is 51.7 meters

Step-by-step explanation:

We are given that,

The surveyor is located 54 meters from one entrance at an angle of 56°.

The surveyor is located 31 meters from one entrance at an angle of 13°.

Let the length of the tunnel = x meters

So, using the law of cosines, we get,

$x^2=54^2+31^2-2\times 54\times 31\times \cos 69$

i.e. $x^2=2916+961-3348\times 0.3584$

i.e. $x^2=3877-1199.9$

i.e. $x^2=2677.1$

i.e. x = 51.7 meters

Hence, the length of the tunnel is 51.7 meters

5 0

3 years ago