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Rama09 [41]
2 years ago
6

12 of 20 students in class have brown eyes. If that ratio is proportional to the whole school, how many students have brown eyes

if there are 750 total students?
Mathematics
1 answer:
Mnenie [13.5K]2 years ago
3 0

Answer:

⅗

Step-by-step explanation:

12÷20 = ⅗

since the ratio is proportional

there for the ratio is still ⅗

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If f(x) is an even function and (6, 8) is one the points on the graph of f(x), which reason explains why (–6, 8) must also be a
ch4aika [34]

Definition: A function is "even" when f(x) = f(−x) for all x.

Geometrically speaking, the graph face of an even function is symmetric with respect to the y-axis, meaning that its graph remains unchanged after reflection about the y-axis.

If point (6, 8) is one the points on the graph of f(x), then f(6)=8 and since function is even, you can state that f(-6)=f(6)=8. This means that point (-6,8) must also be a point on the graph. Geometrically it means that the output of a negative x-value and its opposite is the same.

Answer: correct choice is A.

5 0
3 years ago
Read 2 more answers
What is SIN A?
Bond [772]

Answer:

\sin A =\frac{4}{5}

Step-by-step explanation:

Recall the mnemonics SOH CAH TOA.

SOH means the Sine ratio is Opposite over Hypotenuse.

This implies that;

\sin A =\frac{Opposite}{Hypotenuse}

The side opposite to angle A is 4cm and the hypotenuse is 5cm.

\therefore \sin A =\frac{4}{5}

6 0
3 years ago
List THE numbers in order from least no greatest-65,34,7,-13,55,62,-7
ivann1987 [24]
-65, -13, -7, 7, 34, 55, 62.
Here’s your answer^
Least to greatest

Always negative will be least and positive will be the greatest always.
7 0
2 years ago
A treatment is administered to a sample of n = 9 individuals selected from a population with a mean of µ = 80 and a standard dev
stepan [7]

Answer:

a) M =82

Step-by-step explanation:

Let´s study this as a Normal distribution.

As we know in a normal distribution the z score is = (X-μ)/(sd/sqrt(n))

where

X = mean for the taken sample = What we want to know in this problem

μ = Total population mean =80

sd= standard deviation= 12

n = sample size=9

So in this case z=( X-80)/(12/sqr(9))= (X-80)/4

also we know that the effect size taken by the machine is 0.5, which is the same as the z-score

so...

0.5 = (X-80)/4 => 0.5*4 = X-80

2+80 = X

X = 82

4 0
3 years ago
Home heating oil is sold by the gallon. Last winter the romano family used 370 gallons of oil at a price of $3.91 per gallon. If
shusha [124]
($3.91)(0.09) = $0.3519

$3.91 + 0.3519 = $4.2619 per gallon

if you're looking for the total expense next year:

($4.2619)(370 gallons) = $1,576.903
6 0
3 years ago
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