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IRISSAK [1]
3 years ago
7

Pls help me with these 3 problems. * click the picture *​

Mathematics
1 answer:
storchak [24]3 years ago
4 0

Answer:

6. 360 inches

Step-by-step explanation:

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A 5.5 foot woman casts a shadow that is 3 feet longer than her son's shadow. the son casts a shadow 13.5 feet long.
fenix001 [56]

Answer:16.5 feet long shadow coming from the woman...


Step-by-step explanation:add 3 to 13.5.

13.5+1=14.5

+1=15.5

+1= 16.5


6 0
3 years ago
Laboratory tests show that the lives of
SIZIF [17.4K]
<h3>Answer:  34%</h3>

This result is approximate.

=========================================================

Explanation:

mu = 750 = mean

sigma = 75 = standard deviation

The raw scores or x values are x = 750 and x = 825

Let's compute the z score for each x value

z = (x - mu)/sigma

z = (750 - 750)/75

z = 0

and

z = (x - mu)/sigma

z = (825 - 750)/75

z = 1

Therefore P(750 ≤ x ≤ 825) is equivalent to P(0 ≤ z ≤ 1) in this context.

Use a z score table to determine that

P(z ≤ 0) = 0.5

P(z ≤ 1) = 0.84314 approximately

So,

P(a ≤ z ≤ b) = P(z ≤ b) - P(z ≤ a)

P(0 ≤ z ≤ 1) = P(z ≤ 1) - P(z ≤ 0)

P(0 ≤ z ≤ 1) = 0.84314 - 0.5

P(0 ≤ z ≤ 1) = 0.34314 approximately

The value 0.34314 then converts to 34.314% which rounds to <u>34%</u>

Or you could use the empirical rule as shown below. The pink section on the right is marked <u>34%</u> which is approximate. This pink section is between z = 0 and z = 1.

6 0
2 years ago
the volume of a large sphere (of radius R) is twice the volume of a smaller sphere (of radius r). form an equation linking r and
Sedaia [141]

Step-by-step explanation:

radius of large sphere is R,

then volume is (4/3)*pie*R³

and

the radius of small sphere is r,

then volume is (4/3)*pie*r³

condition is,

volume of larger sphere is twice of the volume of smaller sphere.

then, (4/3)*pie*R³=2*(4/3)*pie*r³;

R³= 2r³

R=(2^⅓)*r

3 0
3 years ago
In the 2012 Paralympic Games, the total number of gold and silver medals won by Brazil was 35 The ratio of the number of gold me
Thepotemich [5.8K]

Answer:

the number of silver medals won by Brazil is 14

Step-by-step explanation:

The computation of the number of silver medals won by Brazil is shown below:

Given that

Total number of gold and silver medal wons by Brazil was 35

And, the ratio of number of gold medals to the number of silver medals be 3 : 2

Based on the above information

The number of silver medals won would be

= 35 × 2 ÷ (3 + 2)

= 35 × 2 ÷ 5

= 14

hence, the number of silver medals won by Brazil is 14

7 0
3 years ago
How many square feet of outdoor carpet will we need for this hole?
boyakko [2]
First, break up the entire thing into smaller rectangles then find the area of all of those rectangles and add them together to get 30 square feet.
6 0
3 years ago
Read 2 more answers
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