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SIZIF [17.4K]
3 years ago
10

Tanner took a statistics test whose mean was 80 and the standard deviation was 5. The total points possible was 100. Tanner's sc

ore was 2 standard deviations below the mean. What was Tanner's score, rounded to the nearest whole number?
Mathematics
1 answer:
suter [353]3 years ago
8 0

Answer:

Tanner's score = 70

Step-by-step explanation:

Data provided in the question:

Mean value of the statistics test taken by Tanner = 80

Standard deviation = 5

Total points possible = 100

Now,

It is given that the Tanner's score was 2 standard deviation below the mean

Mathematically,

Tanner's score = Mean - ( 2 × Standard deviation )

or

Tanner's score = 80 - ( 2 × 5 )

or

Tanner's score = 80 - 10

or

Tanner's score = 70

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Harrizon [31]

Answer:

V=36 \pi cubic inches

Step-by-step explanation:

Diameter is increasing at 3 inches more than time, When t = 3

Diameter (d) = 3+3 = 6

d = 6

Radius is HALF of diameter, so

r = 6/2 = 3

Now, the volume of a sphere is given by the formula:

V=\frac{4}{3}\pi r^3

Putting r = 3, we get:

V=\frac{4}{3}\pi r^3\\V=\frac{4}{3}\pi (3)^3\\V=36 \pi

The volume would be 36π

5 0
3 years ago
Aimi is making Valentine’s Day cards for everyone in her class. She plans to use a whole sheet of paper for each of her 6 closes
DaniilM [7]
34 - 6 = 28
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After making the 6 whole sheet of paper cards for her closest friends Aimi will have 28 pieces of paper left.

Since she wants to use 1/8 of a sheet per valentine (think of it as one piece of paper can make 8 valentines) you can do 28 pieces of paper multiplied by 8 which gives you 224 valentines. 
8 0
3 years ago
46,054,202 round the underlined number the 5 isunderlined 
Scrat [10]
<em>if 5 is to be rounded off, then the rule is, if the next significant digit is equal or greater than 5 it adds up, other wise not..</em>
<em>In this case the next significant digit is 0 which is less than 5 so it will not be added up.</em>

<em>46,054,202 ≈ 46,000,000 Answer</em>
8 0
3 years ago
100 POINTS!!!!!!!!!!!!!!!!!!!!!!!!
hodyreva [135]
<h3>Key points :-</h3>

✪ Both triangles will be proven similar by AA theorem i.e. Angle-Angle theorem.

✪ The symbol for similarity is ~.

✪ The symbol for congruency is ≅.

\rule{300pt}{2pt}

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6 0
2 years ago
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Jammal makes a cut through a block of florist's foam, as shown. What are the dimensions of the exposed cross section?
Ahat [919]

Answer:

C. 3 in x 6 in

Step-by-step explanation:

Jammal cuts the block in a straight line parallel to one side... so the section revealed when he finishes his cut will be identical as the parallel side to which the cut is done.

We know the the left side of the prism on the image is 3 inches wide and 6 inches high... so that will also be the dimensions of the exposed cross section.

The answer is then 3 inches y 6 inches. The thickness of the block (5 inches) has no impact on the exposed area of the cross-section.

8 0
4 years ago
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