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AnnZ [28]
3 years ago
13

What is 18 plus -3/4? help me or ur racist Lol

Mathematics
2 answers:
Sav [38]3 years ago
4 0

Answer:

17.25

Step-by-step explanation:

DedPeter [7]3 years ago
3 0
17.25 is your answer
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In a class with 30 students, there are 18 women and 12 men. What is the ratio of men to women in the class?
Nonamiya [84]

Answer:

2:3

Step-by-step explanation:

A total of 30 students with 12 girls so its 12/30 & its the balance of 18 boys or 18/30

12:18 ÷ by 2 on both sides is.6:9 & 2:3, Answer is Ratio of 2:3.

4 0
3 years ago
Solve for x<br>a.81<br>b.41<br>c.1681
Jlenok [28]
A=9 , b=40

Pythagorean theorem
a^2+b^2=x^2 \\\\ x=\sqrt{a^2+b^2}=\sqrt{9^2+40^2}=\sqrt{81+1600}=\sqrt{1681}=\sqrt{41^2}=41
5 0
3 years ago
9. The probability of a child being born with light-colored eyes to two particular parents is 0.25.
slavikrds [6]

If X is a random variable representing the number of children that end up having light-colored eyes, then X follows a binomial distribution with success probability p = 0.25 and number of trials n = 5.

The variance of a binomial distribution with these parameters is n p (1 - p), so the variance in this case would be

5 • 0.25 • (1 - 0.25) = 0.9375 ≈ 0.9

4 0
2 years ago
(12) Geographers use negative numbers to represent points below sea level and positive numbers for points above 1
myrzilka [38]

Difference in elevation is 6 meters.

5 0
3 years ago
Read 2 more answers
Determine whether
lora16 [44]

Answer:

(a) and (b) are not equivalent

(c) is equivalent

Step-by-step explanation:

Given

\frac{25^m}{5}

Required

Determine an equivalent or nonequivalent expression

(a)\ 25^{m-1

We have:

25^{m-1

Apply law of indices

25^{m-1} = \frac{25^m}{25}

<em>This is not equivalent to </em>\frac{25^m}{5}<em></em>

(b)\ 25^{2m - 1}

We have:

25^{2m - 1}

Apply law of indices

25^{2m - 1} = \frac{25^{2m}}{25}

<em>This is not equivalent to </em>\frac{25^m}{5}<em></em>

<em></em>

<em />(c)\ 5^{2m-1}<em />

We have:

<em />5^{2m-1}<em />

Apply law of indices

<em />5^{2m-1} = \frac{5^{2m}}{5^1}<em />

<em />5^{2m-1} = \frac{5^{2m}}{5}<em />

<em>Evaluate the numerator</em>

<em />5^{2m-1} = \frac{25m}{5}<em />

<em />

<em>This is an equivalent expression</em>

4 0
3 years ago
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