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PtichkaEL [24]
3 years ago
9

A ball-shaped like a sphere has a radius of 2.7 cm. Which measurement is closest to the volume of the ball in cubic cm?

Mathematics
1 answer:
wariber [46]3 years ago
8 0

Answer:

Step-by-step explanation:

V = 4/3 * pi * r^3

V = 4/3 * 22/7 * 2.7^3

V = 82.5 cm^3

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sammy's bucket holds 2,530 milliliters of water. Marie's bucket holds 2 liters 30 milliliters of water. Katie's bucket holds 2 l
Zanzabum

Answer:

Marie's bucket holds the least amount of water.

Step-by-step explanation:

Sammy's bucket holds 2.53 liters of water. (2530 / 1000 = 2.530)

Marie's bucket holds 2.03 liters of water. (2 + 0.030 = 2.030)

Katie's bucket holds 2.35 liters of water. (2 + 0.350 = 2.350)

If you compare all these values, 2.03 is the least out of all of them.

8 0
3 years ago
A number x is at least 5 and is at most 8
Rainbow [258]

Answer:

5 \leqslant x \leqslant 8

7 0
2 years ago
Is the ordered pair (2,1) a solution to the system below? 2.x + 3y = 7 8x – 3y = 13 yes Or no​
EastWind [94]

Answer:

YES

Step-by-step explanation:

2(2) + 3(1) = 4+3= 7 then, 8(2) - 3(1) = 16 - 3 = 13

x=2

y=1

3 0
3 years ago
In the largest clinical trial ever​ conducted, 401,974 children were randomly assigned to two groups. The treatment group consis
BARSIC [14]

Answer:

The requirements for the hypothesis test does satisfied the method for testing the claim that from two population proportions the rate of polio is less for children given the salk vaccine.

Step-by-step explanation:

The percentage of children in the treatment group was:

(201229/401974)*100 = 49.9%

The percentage of children given placebo was:

(200745/401974)*100 = 50.1%

The percentage of children that developed polio in the treatment group:

(33/200745)*100 = 0.0164%

The percentage of children that developed polio in the placebo group:

(115/201229)*100 = 0.0571%

The percentage difference between the two group:

((0.0571-0.0164)/0.0571) = 61.62%

Therefore:

The amount of children used for each group was almost divided into half of the total amount of children. The test revealed although very small percentages of the both group developed polio, 68.62% more children given placebo than the children that was given the salk vaccine. Therefore, the study shows that the rate of polio is less for children given the salk vaccine and the the hypthesis test is satisfied.

6 0
3 years ago
On a coordinate plane, a line goes through (negative 2, negative 4) and (2, 2). A point is at (negative 3, 1).
zavuch27 [327]

Answer:

y – 1= Three-halves(x + 3)

Step-by-step explanation:

line goes through  (-2, -4) and (2, 2)

goes through (-3, 1)

slope =  (-4 - 2) / (-2 -2)  = -6/-4 = 3/2

1 =  (3/2)*-3 + b

1 = -9/2 + b

b = 1 + 9/2 = 11/2 = 5.5

y = (3/2)*x + 11/2

(y - 1) = (3/2)(x + 3)

5 0
3 years ago
Read 2 more answers
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