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3 years ago

The area of Mrs. Rush's rectangular room is 3x2+31x+36 . Find the length, width and perimeter.what is it?

Mathematics

1 answer:

Lynna [10]3 years ago

5 0

Answer:

The chosen topic is not meant for use with this type of problem. Try the examples below.

Step-by-step explanation:

 l=9

w=4

 l=5

w=5

 l=5

w=4

I think its right because I tried ok.

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Can someone please help with this it’s worth 19 points?

nexus9112 [7]

Answer:

54, 36

Step-by-step explanation:

67+59+x=60*3

126+x=180

x=54

54 cones on Sunday

_____________________________________

180+x=54*4

180+x=216

x=36

36 cones on Monday

6 0

3 years ago

A line with a slope of O passes through the point (1, 10). What is its equation in

Burka [1]

Answer: Y = 10

Step-by-step explanation:

Because it is a horizontal line, the equation will just be Y = the Y value

5 0

3 years ago

What is the main purpose of informational writing?

Eddi Din [679]

Answer:

The correct answer is:

"To inform readers about a topic using facts and details"

Step-by-step explanation:

Let us define informational writing first.

Informational writing is like communication writing which is used to convey something using facts and figures. Whatever is stated in an informational writing, it is supported by related facts and proofs.

Hence,

The correct answer is:

"To inform readers about a topic using facts and details"

4 0

3 years ago

第 5 个问题 a multiple choice exam has 10 questions. each question has 3 possible answers, of which one is correct. a student knows

tatuchka [14]

The chances that the student was merely guessing is 1/3.

Bayes Theorem determines the conditional probability of an event A given that event B has already occurred.

denoted by

$P(A/B)=\frac{P(A)*P(B/A)}{P(B)}$

let A be the event that the student knows the answer .

B be the event that the student does not knows the answer .

and

E be the event he gets answer correct .

According to the given question

$P(A)=\frac{4}{10} \\\\ P(B)=1-\frac{4}{10} =\frac{6}{10}$

Probability that the answer is correct ,given that he knows the answer is

$P(E/A)=1$

Probability that the answer is correct ,given that he guesses it is

$P(E/B)=\frac{1}{3}$ [as the MCQ has 3 options and only one is correct]

We need to find the probability that he guesses the answer given that it is correct.

Required probability $P(B/E)=\frac{P(B)*P(E/B)}{P(A)*P(E/A)+P(B)*P(E/B)}$

Substituting the values we get

$P(B/E)=\frac{\frac{6}{10} *\frac{1}{3} }{\frac{4}{10} *1+\frac{6}{10} *\frac{1}{3} }$

$=\frac{6}{30}*\frac{30}{18} \\ \\ =\frac{6}{18} \\ \\ =\frac{1}{3}$

Therefore , the chances that the student was merely guessing is 1/3.

Learn more about Probability here brainly.com/question/13140147

#SPJ4

8 0

1 year ago

The volume of a cube is 27 cubic inches. What is the length of an edge? Explain.

Lilit [14]

Answer:

Step-by-step explanation:

The formula of a volume of a cube:

$V=a^3$

a - length of an edge

We have V = 27 in³. Substitute:

$a^3=27\to a=\sqrt[3]{27}\\\\a=3\ in$

7 0

3 years ago