The scale is 2 inches:4 feet ,find the scale factor

Answers

Answer 1

Answer: remember: 1 feet = 12 inches
4 feet = 48 inches

scale: 2 inches: 48 inches

The factor is 48 ÷ 2 = 24

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If I multiply 100 times 18.72 how many times do you move the decimal

Answers

Hey. So its pretty easy once u learn the method. All u have to do is count how many zeros there are, and then move the decimal that many times.

18.72---->>>>1872 so the new answer is 1872

hope that helps :)

you move 2 times to the right because 100 has two zeros and the decimal move two times and hi am bangali frends

WILL MARK BRAINLYIEST!!!! Ellie drew ΔLMN, in which m∠LMN = 90°. She then drew ΔPQR, which was a dilation of ΔLMN by a scale factor of one half from the center of dilation at point M. Which of these can be used to prove ΔLMN ~ ΔPQR by the AA similarity postulate?

Answers

Final answer:

The triangles ΔLMN and ΔPQR are similar as per the AA similarity postulate. This is because ΔLMN and ΔPQR have two pairs of congruent corresponding angles: ∠LMN and ∠PQR, and ∠LM and ∠PQ, contemporaneously proving the AA (Angle-Angle) similarity postulate.

Explanation:

The given problem involves two triangles ΔLMN and ΔPQR. Here, ΔLMN is the original triangle, and ΔPQR is a dilated version of ΔLMN by a scale factor of one-half centered at point M.

For the AA (Angle-Angle) similarity postulate, we need to confirm that two angles of one triangle are congruent to two angles of another triangle. If we can establish this, we can deduce that the two triangles are similar.

Firstly, it is given that m∠LMN is 90°. As a property of dilation, it preserves the measures of angles. This means that m∠PQR will also be 90°. Secondly, since the dilation happens at point M, ∠M of ΔLMN will be the same as ∠P of ΔPQR. Thus, we have two sets of corresponding angles (LMN and PQR, and LM and PQ) that are congruent, satisfying the AA similarity postulate. Therefore, we can conclude that ΔLMN is similar to ΔPQR by the AA similarity postulate.

Learn more about Triangle Similarity here:

brainly.com/question/34830045

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Final answer:

The triangles ΔLMN and ΔPQR can be proven similar by the AA similarity postulate.

Explanation:

The triangles ΔLMN and ΔPQR are similar to each other by the AA (Angle-Angle) similarity postulate.

AA similarity postulate states that if two angles of one triangle are congruent to two angles of another triangle, then the triangles are similar.

In this case, since ΔPQR is a dilation of ΔLMN with a scale factor of one half, the angles of ΔPQR are congruent to the corresponding angles of ΔLMN.

Therefore, we can conclude that ΔLMN ~ ΔPQR by the AA similarity postulate.

Learn more about Similarity of triangles here:

brainly.com/question/14926756

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Write a numerical expression for each verbal phrase.the total number of coins Kyle has if he has 12 quarters and 20 dimes
Question 5 options:

12 × 20

20 – 12

12 + 20

20 ÷ 12

Answers

$\huge\boxed{12+20}$

You have $12$ of one type of coin and $20$ of another type of coin.

To find the total number of coins, you need to add the two values together.

Answer:

The correct option is C) 12 + 20.

Step-by-step explanation:

Consider the provided phrase.

The total number of coins Kyle has if he has 12 quarters and 20 dimes

Use "+" sign for and .

He has 12 quarters and 20 dimes can be written as:

$12+20$

The total number of coins are the sum of 2 quarters and 20 dimes

Thus, the required expression is

$12+20$

Hence, the correct option is C) 12 + 20.

Can someone help me with this page?

Answers

B is the first one
D
C
And finally (most likely) A

sure
i will help with the page if i can do it…

In a fifth grade class 4/5 of the girls have brown hair 3/4 of them have Long hair what fraction have Long brown hair

Answers

Answer:

$(3)/(5)$

Step-by-step explanation:

We have that,

Fraction of girls having brown hair = $(4)/(5)$

Fraction of girls having long hair = $(4)/(5)$

Thus, the fraction of girls having long brown hair = Fraction having brown hair × Fraction having long hair

i.e. Fraction of girls having long brown hair = $(4)/(5)* (4)/(5)$

i.e. Fraction of girls having long brown hair = $(3)/(5)$

Hence, the fraction of girls having long brown hair is $(3)/(5)$ .

ANSWER: 12/20 or 3/5

4/5 of girls have brown hair
3/4 have long hair

$(4)/(5) * (3)/(4) = (12)/(20)$
$(12)/(20) / (4)/(4) = (3)/(5)$

An artificial lake is in the shape of a rectangle and has an area of 9/20 square mile. The width of the lake is 1/5 the length of the lake. What are the dimensions of the lake?

Answers

We know that the area of a rectangle can be written as: length x width

so:

l x (1/5) = 9/20

9/20 x 5/1 = 45/20, which can be reduced to 9/4

So the length is 9/4 miles

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