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sergeinik [125]
3 years ago
11

Timothy has computer class 3 times a week. Each class is 45 minutes long. How many hours of computer class does Timothy have per

week? In 4 weeks?
Mathematics
1 answer:
bulgar [2K]3 years ago
6 0
18 classes
i might be wrong
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What is the value of the exponential function f (x)=2 times (1/3)^x when x= -2
frutty [35]

Answer:

18

Step-by-step explanation:

f(x) = 2(1/3)^x

[x = -2]

f(-2) = 2(1/3)⁻²

= 2(9)

= 18

5 0
2 years ago
How are graphs with a nonzero axis misleading? -They distort differences between values. -They rely on faulty data. -They are vi
Reptile [31]

Answer:

They distort differences between values.

Step-by-step explanation:

Non-zero axes distort differences between values, but they are not always misleading.

It depends on who is looking at them.

Consider the bar graphs below, showing the change in interest rates over time.

A naïve reader might conclude that interest rates had risen sharply (the zero-axis shows that they have remained steady).

However, a professional who specializes in interest rates might find the information in the left-hand graph quite useful.

5 0
3 years ago
Involving the selection of frozen dinners. Assume that there are 15 frozen dinners: 7 pasta, 6 chicken, and 2 seafood dinners. T
zzz [600]

The probability that at least 2 of the dinners selected are pasta dinners will be 0.8181...

<u><em>Explanation</em></u>

Pasta dinners = 7 , Chicken dinners = 6 and Seafood dinners = 2  

The student selects 5 of the total 15 dinners. So, total possible ways for selecting 5 dinners =^1^5C_{5} =3003

For selecting at least 2 of them as pasta dinners, the student can select 2, 3, 4 and 5 pasta dinners from total 7 pasta dinners.

So, the possible ways for selecting 2 pasta dinners =^7C_{2}*^8C_{3} =1176

The possible ways for selecting 3 pasta dinners =^7C_{3}*^8C_{2} =980

The possible ways for selecting 4 pasta dinners =^7C_{4}*^8C_{1} =280

The possible ways for selecting 5 pasta dinners =^7C_{5}*^8C_{0} =21

Thus, the probability for selecting at least 2 pasta dinners =\frac{1176+980+280+21}{3003} =\frac{2457}{3003} =0.8181.....

3 0
4 years ago
10. Factor<br> Please help me I will mark as brainliest
suter [353]

Answer:

<u>(3w + 7)² or (3w + 7)(3w + 7)</u>

Step-by-step explanation:

<u>Identity</u>

  • a² + 2ab + b² = (a + b)² = (a + b)(a + b)

<u>Solving</u>

  • 9w² + 42w + 49
  • (3w)² + 2(3w)(7)  + (7)²
  • <u>(3w + 7)² or (3w + 7)(3w + 7)</u>
6 0
3 years ago
Leyla needs to hire a plumber to fix a few things around her house. She will need plumbing service for a total of 3 hours. Which
Natasha2012 [34]
Hello Leyla! Could you provide details about the plumbing services? I’d be happy to help you in the comments.
8 0
4 years ago
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