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abruzzese [7]
2 years ago
10

George started a coin collection. his dad gave him 75 coins. each month he will add 20 coins to the collection. which equation c

an be used to find y, the total number of coins in george’s collection after x months?
SAT
1 answer:
Paha777 [63]2 years ago
8 0

Answer:

The equation that could be used for determining the y should be option B y = 20x + 75

Calculation of an equation:

Since dad gave him 75 coins. each month he will add 20 coins.

Here we assume a number of months be x

So, the equation is

y = 20x + 75

Therefore, we can conclude that The equation that could be used for determining the y should be option B y = 20x + 75

Explanation:

hope this helps!:) if does mark brainllest pls and thank u!

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Which equation is an example of the commutative property of multiplication? (4 2i) = (2i 4) (4 2i)(3 – 5i) = (3 – 5i)(4 2i) (4 2
kozerog [31]

Option B is correct. (4 + 2i)(3 – 5i) = (3 – 5i)(4 + 2i) satisfies the commutative property of multiplication

Given two values A and B, according to the commutative property of multiplication;

  • AB = BA

This shows that the product of A and B stays the same no matter the arrangement.

From the given option, we can see that (4 + 2i)(3 – 5i) = (3 – 5i)(4 + 2i) satisfies the commutative property of multiplication where we can say;

A = 4 + 2i and B = 3 - 5i

Learn more here: brainly.com/question/17955280

4 0
2 years ago
A survey found that​ women's heights are normally distributed with mean
zheka24 [161]

Answer:

a. 99.30% of the woman meet the height requirement

b.  If all women are eligible except the shortest​ 1% and the tallest​ 2%, then height should be between 58.32 and 68.83

Explanation:

<em>According to the survey</em>, women's heights are normally distributed with mean 63.9 and standard deviation 2.4

a)

A branch of the military requires​ women's heights to be between 58 in and 80 in. We need to find the probabilities that heights fall between 58 in and 80 in in this distribution. We need to find z-scores of the values 58 in and 80 in. Z-score shows how many standard deviations far are the values from the mean. Therefore they subtracted from the mean and divided by the standard deviation:

z-score of 58 in= z=\frac{58-63.9}{2.4} = -2.458

z-score of 80 in= z=\frac{80-63.9}{2.4} = 6.708

In normal distribution 99.3% of the values have higher z-score than -2.458

0% of the values have higher z-score than 6.708. Therefore 99.3% of the woman meet the height requirement.

b)

To find the height requirement so that all women are eligible except the shortest​ 1% and the tallest​ 2%, we need to find the boundary z-score of the

shortest​ 1% and the tallest​ 2%. Thus, upper bound for z-score has to be 2.054 and lower bound is -2.326

Corresponding heights (H) can be found using the formula

2.054=\frac{H-63.9}{2.4}  and

-2.326=\frac{H-63.9}{2.4}

Thus lower bound for height is 58.32 and

Upper bound for height is 68.83

8 0
3 years ago
WHAT IS A RASENGAN ???? I KEEP HEARING PEOPLE SAY THAT
Korolek [52]
The spinning ball from “Naruto” the anime
4 0
2 years ago
Tone should not be confused with _____ which refers to the feeling the reader gets from the writer’s words.
Natali [406]

Answer:

Mood

Explanation:

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7 0
2 years ago
Evaluate the piecewise defined function at the indicated values.
Anit [1.1K]

9514 1404 393

Answer:

  -45, 1, 4, 5, 9

Explanation:

The first argument value, -5, is less than -1, so the first section of the function definition is used. f(-5) = 9(-5) = -45.

The 2nd to 5th argument values are in the interval [-1, 3], so the second section of the function definition is used.

The last argument value, 6, is greater than 3, so the last section of the function definition is used. f(6) = (6 -3)^2 = 9.

Function values are shown in the table attached.

5 0
2 years ago
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