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2 years ago

Help me on this pls.

Mathematics

1 answer:

Mrrafil [7]2 years ago

6 0

Answer:

Step-by-step explanation:

11 / 232 = 0.047

0.047 x 100% = 4.7%

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What is the slope of the line that contains these points?

sertanlavr [38]

Formula to find the slope (y1-y2)/(x1-x2)
if (x1,y1) is (13,2) and (x2,y2) is (15,14)
(2-14)/(13-15)=6

3 0

3 years ago

Britney's town voted on the new speed limit. Out of 48 votes, 12 are in favor of the new speed limit. What percentage of the vot

Reptile [31]

Answer:

25%

Step-by-step explanation:

6 0

3 years ago

At a college, 72% of courses have final exams and 46% of courses require research papers. Suppose that 32% of courses have a res

Ghella [55]

Answer:

a) $P(F UR) = P(F) +P(R) -P(F and R) = 0.72+0.46-0.32=0.86$

b) $P(FUR)' = 1-P(FUR)= 1-0.86 = 0.14$

Step-by-step explanation:

Let's define the following events first:

F: The event that a course has a final exam.

R: The event that a course requires a research paper

From the info provided we have that:

$P(F) = 0.72, P(R) =0.46$ P(F and R) =0.32

So then we can create a Venn diagram as we can see on the figure attached.

a. Find the probability that a course has a final exam or a research project.

For this case we can find the probability like this:

$P(F UR) = P(F) +P(R) -P(F and R) = 0.72+0.46-0.32=0.86$

b. Find the probability that a course has NEITHER of these two requirements.

For this case we can use the complement rule and we can find the probability like this:

$P(FUR)' = 1-P(FUR)= 1-0.86 = 0.14$

And that's the same value obtained with the diagram.

8 0

3 years ago

Solve for brainiest; thanks in advance

tankabanditka [31]

Can you show a clearer picture ??

6 0

2 years ago

In the library at lenape elmentary school, there are 3/8 as, many fiction books as there are nonfiction books. There are 44 book

N76 [4]

Answer:

12 fiction books.

Step-by-step explanation:

Let b represent number of non-fiction books.

We have been given that in the library at Lenape elementary school, there are 3/8 as many fiction books as there are nonfiction books. So number of fiction books would be $\frac{3}{8}x$ .

We are also told that there are 44 books in school library. We can represent this information in an equation as:

$x+\frac{3}{8}x=44$

Let us solve for x.

$\frac{8x}{8}+\frac{3}{8}x=44$

$\frac{8x+3x}{8}=44$

$\frac{11x}{8}=44$

$\frac{11x}{8}\cdot \frac{8}{11}=44\cdot\frac{8}{11}$

$x=4\cdot 8$

$x=32$

Therefore, there are 32 non fiction books in the library.

Number of fiction books would be $\frac{3}{8}x\Rightarrow \frac{3}{8}*32=3*4=12$

Therefore, there are 12 fiction books in the library.

5 0

2 years ago