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luda_lava [24]
3 years ago
7

Please help thank you ​

Mathematics
1 answer:
Butoxors [25]3 years ago
8 0

Answer:

it might go like A= 12 B= 0 C = -6

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The area of a trapezoid is 36.36 square centimeters. One base of the trapezoid is 14.8 centimeters. Its height is 3.6 centimeter
zmey [24]
The third answer (Dividing the area by the height, multiplying the quotient, etc) is correct.

If we multiply by the height, we receive an expression equal to the sum of the bases divided by two.  Multiplying by two, we now have the sum of the bases.  Subtracting one base gives the length of the other base.
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A class of fourth graders decides to split into groups based on the first letter of their last names.then,they choose students f
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Answer:

Volunteers sampling is correct answer

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It has long been stated that the mean temperature of humans is 98.6degreesF. ​However, two researchers currently involved in the
zepelin [54]

Answer:

Step-by-step explanation:

We would set up the hypothesis test. This is a test of a single population mean since we are dealing with mean

For the null hypothesis,

µ = 98.6

For the alternative hypothesis,

µ < 98.6

This is a left tailed test.

Since the population standard deviation is not given, the distribution is a student's t.

Since n = 275

Degrees of freedom, df = n - 1 = 275 - 1 = 274

test statistic, t = (x - µ)/(s/√n)

Where

x = sample mean = 98.3

µ = population mean = 98.6

s = samples standard deviation = 1

t = (98.3 - 98.6)/(1/√275) = - 4.97

We would determine the p value using the t test calculator. It becomes

p < 0.00001

Since alpha, 0.01 > than the p value, then we would reject the null hypothesis. Therefore, the correct option is

B. Reject Upper H 0 since the​ P-value is less than the significance level.

8 0
3 years ago
What is the probability of rolling a number 20 with two dice ​
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4 years ago
Select the correct answer from each drop-down menu.
Rufina [12.5K]

Incomplete question. The completed question reads;

The Northville School Board has proposed this budget for the upcoming school year:

20% for school staff’s salaries

50% for school maintenance and upkeep

10% to refurbish the gymnasium

5% to upgrade the computer lab hardware

10% for new instruments for the music department

5% for new sports equipment

After a brief discussion, the school board revised the budget as follows:

20% for school staff’s salaries

50% for school maintenance and upkeep

10% to refurbish the gymnasium

10% to upgrade the computer lab hardware

5% for new instruments for the music department

5% for new sports equipment

In this case, the opportunity cost for (refurbishing the gym, upgrading the computer lab, or getting new instruments.) was ( upgrading the new computer lab hardware, getting new equipment, or getting new instruments?

Answer:

<u>getting new instrument</u>

Explanation:

Note that the term opportunity cost refers to the value or the cost of not selecting/benefitting from the other alternative option.

Comparing both budgets, it is observable that the budget for computer lab hardware was increased by 5%; and that of musical instruments was reduced by 5% according to The Northville School Board order of preference (importance).

Thus, we can say that the board decided to forgo some of the amount spent on musical instruments, but decided to increase spending on computer hardware.

8 0
3 years ago
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