3 years ago

What set of reflections would carry triangle ABC onto itself

1 answer:

6 0

A reflection could be if triangle ABC was reflected in a mirror it would reflect the same triangle which would be triangle ABC. Hope this helps.

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X is a normally Distributed random variable with a standard deviation of 4.00. Find the mean of X when 64.8% of the area lies to

Cerrena [4.2K]

Answer:

Step-by-step explanation:

σ = 4 ; μ =?

8.52 to the left of X

P(X < 8.52) = 64.8%

P(X < 8.52) = 0.648

Using the Z relation :

(x - μ) / σ

P(Z < (8.52 - μ) / 4)) = 0.648

The Z value of 0.648 of the lower tail is equal to 0.38 (Z probability calculator)

Z = 8.52 - μ / 4

0.38 = 8.52 - μ / 4

0.38 * 4 = 8.52 - μ

1.52 = 8.52 - μ

μ = 8.52 - 1.52

μ = 7

5 0

3 years ago

Matches the description in the table below.

tatiyna

I think it is A because i think it is the only one that makes sense

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3 years ago

A bag contains 4 red marbles, 3 white marbles, and 7 blue marbles. You pick a marble without looking. Find the probability of dr

astra-53 [7]

The probability of drawing a white marble = $\frac{Number of white marbles}{Total number of Marbles}$

∴ the probability of drawing a white marble = ³/₁₄

6 0

3 years ago

What is the least common denominator of 1/2, 2/3 and 3/4

Vinil7 [7]

Answer:

6/12, 8/12, and 9/12.

Step-by-step explanation:

Let's find the least common denominator:

First, the least common multiple of 2, 3, and 4 is 12.

12 is divisible by 2, 3, and 4.

<u>Next, multiply the denominators with the numerators:</u>

Products: 6/12, 8/12, and 9/12

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2 years ago

If the length of the base of a triangle is

Anarel [89]

Answer:

Step-by-step explanation:

the answer is 12% decrease in area

5 0

2 years ago