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omeli [17]
3 years ago
13

Test scores are normally distributed with a mean of 68 and a standard deviation of 12. Find the z – score for a grade of 74. Rou

nd your answer to two numbers after the decimal.
Mathematics
1 answer:
Tasya [4]3 years ago
6 0

Answer:

gang nem

Step-by-step explanation:

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I givee braqinlilsttt
GenaCL600 [577]

Answer:

sccccccccccccccccccccccccccccccccccccccccccafda

Step-by-step explanation:

fsdfsafvsafsdgarrgegrgergrg

3 0
3 years ago
Find the zero of polynomial 7x+5
boyakko [2]

Answer:

x=-5/7

Step-by-step explanation:

we have

f(x)=7x+5 ----> The degree of this polynomial is 1 (linear equation)

Remember that

The zero of the polynomial is the value of x when the value of f(x) is zero

so

For f(x)=0

0=7x+5

solve for x

x=-5/7 ----> the zero of the polynomial or x-intercept

4 0
3 years ago
Which of the following could be a solution to a system of linear equations including the line graphed below?
Anna [14]

Answer:

B

Step-by-step explanation:

using quadratic equation

3 0
3 years ago
Which equation can be used to determine the distance between the origin and (–2, –4)?
Andreyy89
-2+(-4) i think :)))
3 0
3 years ago
Read 2 more answers
(1a) Do 4x and 15 + x have the same value when x is 5? How do you know?
diamong [38]

Answer:

Yes, both have the same value ( 20) when x = 5.

Step-by-step explanation:

We have two functions:

y = 15 + x

y = 4*x

We want to see if these functions have the same value when x = 5.

Then we just need to replace x by 5 in both equations, and see if the values of y are the same

first function:

y = 15 + 5 = 20

second function:

y = 4*5 = 20

So yes, both functions are equal to 20 when x = 5.

5 0
2 years ago
Read 2 more answers
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