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2 years ago

Is the following number rational or irrational? 9.0 A: rational B: Irrational

Mathematics

1 answer:

Lelu [443]2 years ago

5 0

Answer:

Rational

Explanation:

9 is a Rational Number

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5/9 of students at a school are girls. If there are 2367 students at the school, how many are boys?

Svet_ta [14]

the answer is 1052

5*2367 /9=1915

2367 -1315= 1052

5 0

2 years ago

Read 2 more answers

Adult female height is normally distributed with a mean of 65.3 inches and a standard deviation of 2.32 inches. a) If an adult f

emmasim [6.3K]

Answer:

0.0423 is the probability that the adult female has a height less than 61.3 inches.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 65.3 inches

Standard Deviation, σ = 2.32 inches

We are given that the distribution of adult female height is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(adult female has a height less than 61.3 inches)

$P( x < 61.3) = P( z < \displaystyle\frac{61.3 - 65.3}{2.32}) = P(z < -1.7241)$

Calculation the value from standard normal z table, we have,

$P(x < 61.3) =0.0423 = 4.23\%$

0.0423 is the probability that the adult female has a height less than 61.3 inches.

5 0

3 years ago

6y+2=-2(2y-1) help pls.

Viefleur [7K]

Answer:

y=0

Step-by-step explanation:

6y+2=-2(2y-1)

Distribute

6y+2 = -4y +2

Add 4y to each side

6y+2 = -4y +2+4y

6y +2 =2

Subtract 2 from each side

6y +2-2 = 2-2

6y = 0

y=0

4 0

2 years ago

Greta uses 3 cups of pasta fore every 3/4 cup of sauce.how much pasta does she use per cup of sauce

Pavlova-9 [17]

I may not be correct, but I love fractions, and from what I know.....1/4, hope this helps! ( :

3 0

2 years ago

Marque a alternativa correta *

Levart [38]

Step-by-step explanation:

f(x) = 1/2 x é uma função do 1° grau com coeficiente linear=1/2.

7 0

2 years ago