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Stella [2.4K]
3 years ago
6

Help please? ASAP :)

Mathematics
1 answer:
Juliette [100K]3 years ago
7 0

Answer:  The Z-value is a test statistic for Z-tests that measures the difference between an observed statistic and its hypothesized population parameter in units of the standard deviation. ... A mold with a depth of 12 cm has a Z-value of 2, because its depth is two standard deviations greater than the mean

Step-by-step explanation:

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During the first six months of operation, Abdoul's lemonade stand made a profit of $50 per month. In the next three months it ha
MrMuchimi

profit, p = 6 × $50 = $300

losses, l = 120 + 30 + 200 = $350

overall = p - l = -$50

loss of $50

4 0
3 years ago
Claudia says that she used the GCF to factor the expression 20x + 100xy as 20(x + 5xy). Is she correct? Explain.
Keith_Richards [23]

No, She is not correct.

Step-by-step explanation:

To find the greatest common factor of the expression 20x + 100xy.

Given expression 20x + 100xy.

Let us factor the expression 20x + 100xy.

Now take the common factor in the expression 20x + 100xy.

The common factor is 20x.

So, 20x + 100xy = 20x( 1+ 5y)

But Claudia says that the greatest common factor is 20(x+5xy).

The GCF is wrong.

So, she is not correct.

8 0
3 years ago
Select all that apply.
julsineya [31]

Answer:

The first and third is correct.

Step-by-step explanation:

I'm not a expert but I know its right.

6 0
3 years ago
Read 2 more answers
3. In a circular park with a radius of 250 m there are 7 lamps whose bases are circles with
____ [38]

Answer:

Area of the lawn = 62493π m^2

Step-by-step explanation:

6 0
3 years ago
Y=-|x+3| domain and range
Serjik [45]

Answer:

the domain is that x is a set of real numbers.

the range is y ≤ -3

Step-by-step explanation:

y = -|x + 3|

y is either positive or equal to zero.

Now, x is all real numbers because any value of x used will yield a valid value of y.

Thus, we can say that the domain is that x is a set of real numbers.

Now, for the range:

The minus sign in front of the absolute value indicates that the function has a maximum value.

Thus, the range is y ≤ -3

6 0
3 years ago
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