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3 years ago

12

On a test that has a normal distribution, a score of 49 falls three standard deviations below the mean, and a score of 59 falls

two standard deviations above the mean. Determine the mean of this test.

1 answer:

DedPeter [7]3 years ago

6 0

Answer:

Step-by-step explanation:

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Which of the following systems of inequalities has Point C as a solution?

sleet_krkn [62]

Answer:

Option A.

$f(x)\leq 3x+4$

$g(x) \leq-\frac{1}{2}x-5$

Step-by-step explanation:

we know that

If point C is a solution of the system of inequalities, then point C must satisfy both inequalities

Point C is located below the solid line f(x) and below the solid line g(x)

so

The shaded region of the solution set of the system must be below of the inequality f(x) and must be below of the inequality g(x)

therefore

The system is

$f(x)\leq 3x+4$

$g(x) \leq-\frac{1}{2}x-5$

8 0

3 years ago

The room numbers of two adjacent classrooms are two consecutive even numbers if their sum is 806 find the classroom numbers

Igoryamba

Answer:

22

Step-by-step explanation:

sorry if its wrong i dont know the answer choices

8 0

2 years ago

Okay, so what is 1 + 1 = ? Whoever answers it in the past 24 hours gets 5 stars!∩

vlada-n [284]

The answer is 2.

Hope this helps! :)

7 0

3 years ago

For each hour he babysits, Anderson earns $1 more than half of Carey's hourly rate. Anderson earns $6 per hour. Which equation c

MAVERICK [17]

Answer:

The total earnings of Carey in t tours is 12 t - 2 .

Step-by-step explanation:

For each hour he babysits, Anderson earns $1 more than half of Carey's hourly rate. Anderson earns $6 per hour. Which equation can be used to solve for Carey's hourly rate, c? 18 + ?T = 24 What number should be the coefficient of t?

Anderson earns $1 more than half of Carey's hourly rate.

Anderson hourly rate = $ 6

Let Carey's hourly rate is p. Let the time is t hours.

So, Anderson rate is

$6 t = \frac{p t}{2} +1\\\\2\times 6 t = p t + 2 \\\\p t = 12 t - 2$

5 0

3 years ago

in spencers garden the number of rose bushes is 7 less than 1.5 times the number of carnation bushes. If the number of carnation

Step2247 [10]

<span>1.5 times the number of carnation bushes.
If the number of carnation bushes is c.
R = 1.5c - 7
Hope this helps:-)</span>

7 0

3 years ago