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julsineya [31]
2 years ago
13

Measure to the nearest degree

Mathematics
1 answer:
Nesterboy [21]2 years ago
7 0

Answer:

a

Step-by-step explanation:

the other angles do not open past an L shaped to be larger than 90, so c and d are out. For choice b, the b corner doesn't make an L shape either so it is not 90.

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What must be written on the dotted line to make a correct algebraic statement?
asambeis [7]

Answer:

Option A = 8t

Step-by-step explanation:

6t + 3t - 8t = t

6t + 3t = 9t

9t - 8t = t

6 0
3 years ago
A standardized variable always has a mean of​ _______ and a standard deviation of​ _______. b. The​ z-score corresponding to an
Feliz [49]

Answer:

Step-by-step explanation:

We know that normal distribution as special characteristics such as symmetry, unimodal, no skewness, mean =median=mode, etc

A standardized variable for normal variable X is

Z = \frac{x-\mu}{\sigma} will be normal with mean =0 and sigma =1

The probability will be divided equally on either side of the mean =0 i.e. y axis

Hence the answers would be

A standardized variable always has a mean of​ __0_____ and a standard deviation of​ ___1____. b. The​ z-score corresponding to an observed value of a variable tells you​ ____the std normal score.___. c. A positive​ z-score indicates that the observation is​ __to the right ____ the​ mean, whereas a negative​ z-score indicates that the observation is​ __to the left_____ the mean

6 0
3 years ago
A recent article in a college newspaper stated that college students get an average of 7 hrs of sleep each night. A student who
vazorg [7]

Solution -

A student who was skeptical about this value decided to conduct a survey by randomly sampling 36 students. On average, the sampled students slept 6.6 hours per night.

The sample mean is the average of the 36 sampled students, which is 6.6 hours. So 6.6 represents the <u><em>sample mean.</em></u>

College newspaper stated that college students get an average of 7 hrs of sleep each night.

The claimed population mean is the stated average from the newspaper article, which is 7 hrs.  So 7 represents the <u><em>claimed population mean.</em></u>

6 0
3 years ago
Twenty seven exceeds one twelfth of a number by 13. what is the number
ludmilkaskok [199]
ANSWER:
168

EXPLANATION:
27 - 13 = 14
14 is one twelfth of the number
so 14 x 12 = 168
5 0
3 years ago
Factor the expression below.
Iteru [2.4K]

Answer:

A. \displaystyle (x - 5)^2

Step-by-step explanation:

Find two quantities that when added to −10, they are also multiplied to 25, and that number is a double −5.

I am joyous to assist you anytime.

5 0
3 years ago
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