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vovikov84 [41]
3 years ago
9

In a certain Algebra 2 class of 28 students, 16 of them play basketball and 15 of them play baseball. There are 8 students who p

lay neither sport. What is the probability that a student chosen randomly from the class plays basketball or baseball?
Mathematics
1 answer:
kicyunya [14]3 years ago
7 0

20/28 = 5/7

Step-by-step explanation:

Step 1 :

Total number of students in the algebra class is 28

Given that the number of students who play neither sport = 8

Step 2 :

Probability that a student randomly chosen does not play any sport is obtained by number of students who play neither sport/ total number of students

Hence probability is 8/28

Step 3 :

The probability that a student randomly chosen plays either basketball or base ball = 1 - 8/28  = 20/28 = 5/7

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Factor the polynomial 16b^4+30b^3-12b^2
Lelu [443]

Answer:

2b²(8b²+15b-6)

Step-by-step explanation:

16b^{4}+30b³-12b²

2b²(8b²+15b-6)

This is not further factorable. If you want to find the roots, you'd have to use the quadratic formula for the polynomial in the parentheses. Therefore that is our final answer.

4 0
3 years ago
I really really need help with this . No links
Diano4ka-milaya [45]

Answer:

pretty sure its 123

Step-by-step explanation:

3 0
3 years ago
Select the correct answer from each drop-down menu.
RSB [31]

Evidence are simply facts to support a claim, while counterexamples are instances to show the contradictions in a claim

<em>The question is incomplete, as the required drop-down menus are missing. So, I will give a general explanation</em>

<em />

To show that a statement is true, you need evidence.

Take for instance:

\mathbf{if\ a^2 = 4,\ then\ a = 2}

The evidence that the above proof is true is by taking the <em>squares of both sides of </em>\mathbf{a = 2}

\mathbf{a^2 = 2^2}

\mathbf{a^2 = 4}

However, a counterexample does not need a proof per se.

What a counterexample needs is just an instance or example, to show that:

\mathbf{if\ a^2 = 4,\ then\ a \ne 2}

An instance to prove that: \mathbf{if\ a^2 = 4,\ then\ a = 2} is false is:

\mathbf{a = -2}

Hence, the complete statement could be:

<em>In a direct proof, evidence is used to support a proof . On the other hand, a counterexample is a single example that shows that a proof is false.</em>

<em />

Read more about evidence and counterexample at:

brainly.com/question/88496

5 0
2 years ago
hey i know this may be a lame question but can anyone help me how can i multiply 16 with 3,142 (with steps) ?? :/
vovangra [49]

Answer:

50272

Step-by-step explanation:

Okay how I solve these equations is I take the problem apart like this:

3142 = 3000 + 100 + 40 + 2

Now we multiply each number by 16:

3000 * 16 = 48000

100 * 16 = 1600

40 * 16 = 640

2 * 16 = 32

Then we add all the totals together:

48000 + 1600 + 640 + 32 = 50272

Hope this Helps ;)

8 0
3 years ago
Please help!!! Will Mark brainliest!!!
Studentka2010 [4]

Answer:

9

Step-by-step explanation:

120=4x=6+7x+15

120=11x+21

-21         -21

99  ÷ 11x

AB=9

8 0
3 years ago
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