All categories

2 years ago

Can someone please give me the answer I will mark I brilliant

Mathematics

2 answers:

d1i1m1o1n [39]2 years ago

7 0

Answer:

294

Step-by-step explanation:

Area = length x width

Area of one square is 7 x 7 or 49

There are 6 squares so do 49 x 6 or 49 + 49 + 49 + 49 + 49 + 49 + 49

Answer is 294.

ehidna [41]2 years ago

5 0

Answer: The surface area is 294 mm2.

Step-by-step explanation:

A= l*w

A= 7*7

A=49

49*6= 294

You might be interested in

Which of the following is always a true statement total employee benefits

Zinaida [17]

Employee statement is the correct answer

6 0

2 years ago

What does it mean for two fractions to be equivalent? For two ratios to be equivalent?

nadya68 [22]

When two fractions are equivalent that means that different fractions have the same number

6 0

3 years ago

A multiple-choice examination has 20 questions, each with five possible answers, only one of which is correct. Suppose that one

kari74 [83]

Answer:

The probability that the student answers at least seventeen questions correctly is $8.03\times 10^{-10}$ .

Step-by-step explanation:

Let the random variable X represent the number of correctly answered questions.

It is provided all the questions have five options with only one correct option.

Then the probability of selecting the correct option is,

$P(X)=p=\frac{1}{5}=0.20$

There are n = 20 question in the exam.

It is also provided that a student taking the examination answers each of the questions with an independent random guess.

Then the random variable can be modeled by the Binomial distribution with parameters n = 20 and p = 0.20.

The probability mass function of X is:

$P(X=x)={20\choose x}\ 0.20^{x}\ (1-0.20)^{20-x};\ x =0,1,2,3...$

Compute the probability that the student answers at least seventeen questions correctly as follows:

$P(X\geq 17)=P (X=17)+P (X=18)+P (X=19)+P (X=20)$

$=\sum\limits^{20}_{x=17}{{20\choose x}\ 0.20^{x}\ (1-0.20)^{20-x}}\\\\=0.00000000077+0.000000000032+0.00000000000084+0.000000000000042\\\\=0.000000000802882\\\\=8.03\times10^{-10}$

Thus, the probability that the student answers at least seventeen questions correctly is $8.03\times 10^{-10}$ .

4 0

3 years ago

Define slope as it relates to rates

gladu [14]

Answer:

Slope is the difference between the y-coordinates divided by the difference between the x-coordinates.

6 0

2 years ago

Read 2 more answers

If you were born in 1997 how old are you in 2017

Afina-wow [57]

If you were born in 1997 how old are you in 2017
A/ you are 20 years old

8 0

2 years ago

Read 2 more answers