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defon
3 years ago
13

Help please? :))))))))))))

Mathematics
2 answers:
Ivan3 years ago
5 0
A. 4times y+2        b. 5-x times 3 times y  c. -2 times y-3  d. -7 times 4+x            e. 16 times x -8 divided by 4     f. 1 divided by 3 times 2 times x +3


sorry I tried to make it out the best that I could I don't have all the symbols so I just wrote out the divide and multiply parts 
SSSSS [86.1K]3 years ago
5 0
Hello!

These problems involve the Distributive Property, which is defined as a(b + c) = ab + ac.

a. 4(y + 2)
4y + 2

That is the most simplified this expression can get since 4y and 2 are unlike terms.

b. (5 - x)(3y)
15y - 3xy

c. - 2(y - 3)
-2y + 6

That's all there is to it! I hope this help you. (:
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Read 2 more answers
Question 13 pts
oee [108]

Answer:

1. 68%

2. 50%

3. 15/100

Step-by-step explanation:

Here, we want to use the empirical rule

1. % waiting between 15 and 25 minutes

From what we have in the question;

15 is 1 SD below the mean

25 is 1 SD above the mean

So practically, we want to calculate the percentage between;

1 SD below and above the mean

According to the empirical rule;

1 SD above the mean we have 34%

1 SD below, we have 34%

So between 1 SD below and above, we have

34 + 34 = 68%

2. Percentage above the mean

Mathematically, the percentage above the mean according to the empirical rule for the normal distribution is 50%

3. Probability that someone waits less than 5 minutes

Less than 5 minutes is 3 SD below the mean

That is 0.15% according to the empirical rule and the probability is 15/100

7 0
2 years ago
If g(x)=25 and h(x) = 4 – X, what is the value of (g•h)(-3)?
madam [21]

Answer:

175

Step-by-step explanation:

(g*h)(x) is the product of two functions:  g(x) = 25 and h(x) = 4 - x.

This product is equal to 100 - 25x.

Substituting -3 for x, we get

(g•h)(-3) = 100 - 25(-3) = 175

5 0
3 years ago
Question 9 of 10
Sophie [7]

Answer:

d

Step-by-step explanation:

its a triangle all sides are equal. so it would be d-60 degrees

8 0
3 years ago
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