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Anastaziya [24]
3 years ago
13

4. (10 pts) A study is conducted to estimate the difference in the mean occupational exposure to radioactivity in computer scien

ce students in the years 2000 and 2008. These data based on independent samples of students for the 2 years are obtained:
Mathematics
1 answer:
IceJOKER [234]3 years ago
5 0

Answer:

ddd

Step-by-step explanation:

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nalin [4]
This is impossible by definition both need four sides so 
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4 years ago
Find the volume of a cone with a height of 3.25 centimeters and<br> a diameter of 2.2 centimeters.
saveliy_v [14]

Answer:

As per Provided Information

Height of cone h is 3.25 cm

Diameter of cone is 2.2 cm

  • Radius = Diameter/2

Radius = 2.2/2

Radius = 1.1 cm

We have been asked to determine the volume of the cone .

<u>Using </u><u>Formulae </u>

\boxed{\bf \:Volume_{(Cone)}  =  \cfrac{1}{3}  \pi {r}^{2}h}

Substituting the given value and let's solve it

\sf\longrightarrow \: Volume_{(Cone)}  =  \cfrac{1}{3}  \times 3.14 \times  {1.1}^{2}  \times 3.25 \\  \\  \\ \sf\longrightarrow \: Volume_{(Cone)}  =  \cfrac{1}{3}  \times 3.14 \times 1.21 \times 3.25 \\  \\  \\ \sf\longrightarrow \: Volume_{(Cone)}  =  \cfrac{1}{3}  \times 3.14 \times 3.9325 \\  \\  \\ \sf\longrightarrow \: Volume_{(Cone)}  =  \cfrac{1}{3}  \times 12.34805 \\  \\  \\ \sf\longrightarrow \: Volume_{(Cone)}  =  \cfrac{12.34805}{3}  \\  \\  \\ \sf\longrightarrow \: Volume_{(Cone)}  = 4.11 {cm}^{3}

<u>Therefore</u><u>,</u>

  • <u>Volume </u><u>of </u><u>the </u><u>cone </u><u>is </u><u>4</u><u>.</u><u>1</u><u>1</u><u> </u><u>cm³</u><u> </u><u>.</u>
3 0
3 years ago
What is the value of x?
Inga [223]
(40x+15)+15x=180
40x+15x+15=180
55x+15=180
55x +15-15=180-15
55x=165
165/55
x=3

5 0
3 years ago
How do you solve 12h-7=7h+18 as a 2-step equation
Mariana [72]
Step one: 
12h-7=7h+18
12h-7h-7+7=7h-7h+18+7     Additive inverse 
5h=25

Step two:
5h=25
5/5h=25/5                             Multiplicative inverse
h=5
5 0
3 years ago
Read 2 more answers
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