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2 years ago

9

What is the perimeter? O2 cm O 5 cm O 10 cm O 20 cm

1 answer:

notsponge [240]2 years ago

6 0

Answer:

You'll guys is so boring

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Write the repeating decimal .11111111 as a fraction

Nataly [62]

Answer:

What is .11111111 as a fraction?

To write .11111111 as a fraction you have to write .11111111 as numerator and put 1 as the denominator. Now you multiply numerator and denominator by 10 as long as you get in numerator the whole number.

.11111111 = .11111111/1 = 1.1111111/10 = 11.111111/100 = 111.11111/1000 = 1111.1111/10000 = 11111.111/100000 = 111111.11/1000000 = 1111111.1/10000000 = 11111111/100000000

And finally we have:

.11111111 as a fraction equals 11111111/100000000

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

How do you multiply monomials and binomials?

GrogVix [38]

To multiply mathematical expressions with only one term (monomials) and mathematical expressions with two terms (binomials), you can use the distributive property of algebra

6 0

3 years ago

Read 2 more answers

A test consists of 10 true or false questions. To pass the test a student must answer at least eight questions correctly. If the

forsale [732]

<h3>The probability of student passing the quiz with at least 50% of the questions correct is 0.05457.</h3>

Step-by-step explanation:

Here, the total number of T/F question = 10

The minimum answers needed correctly answered = 8

So, student needs to answer at least 8 questions correctly.

Here, the possibility of answering a question correctly = $(\frac{1}{2})$ = p = 0.5

Also, the possibility of answering a question wrong = $(\frac{1}{2})$ = q = 0.5

Now, to pass he needs to answer 8 or more ( 8 , 9 or 10) answers correctly.

P(answering 8 correct answer) = $^{10}C_8(p)^8(q)^2 = ^{10}C_8(0.5)^8(0.5)^2 = 0.0439$

P(answering 9 correct answer) = $^{10}C_9(p)^9(q)^1 = ^{10}C_9(0.5)^9(0.5)^1 = 0.0097$

P(answering 10 correct answer) = $^{10}C_{10}(p)^{10}(q)^0 = ^{10}C_{10}(0.5)^{10}(0.5)^0 = 0.00097$

So, the total Probability = P(8) + P(9) + P(10)

= (0.0439) + (0.0097) + (0.00097)

= 0.05457

Hence, the probability that the student passes the quiz with at least 8 of the questions correct is 0.05457.

6 0

4 years ago

Mika and Ashten work at domino’s. Mika made 6x - 10 and Ashten made 12y - 15. How much did they make together?

Anna [14]

Answer:

18x-25

Step-by-step explanation:

6x-10+12y-15

6 0

3 years ago

Read 2 more answers

An inlet pipe on a swimming pool can be used to fill the pool in 33 hours. The drain pipe can be used to empty the pool in 34 ho

Talja [164]

<u>Answer: </u>

An inlet pipe on a swimming pool can be used to fill the pool in 33 hours. Time it will take to fill the pool = 748 hrs

<u>Solution: </u>

Let x = time it will take to fill the pool

$\frac{1}{33}$ = work rate of inlet pipe

$\frac{1}{34}$ = work rate of drain pipe

Using the formulae

Volume of flow=work rate $\times$ time

Let us assume complete time of pool to fill = 1

Remaining fraction of pool to be filled = $1-\frac{1}{3}=\frac{2}{3}$

$\begin{array}{l}{\frac{1}{33} x-\frac{1}{34} x=\frac{2}{3}} \\\\ {\frac{x}{33}-\frac{x}{34}=\frac{2}{3}}\end{array}$

$\frac{34 x-33 x}{33 \times 34}=\frac{2}{3}$

$34 x-33 x=\frac{2 \times 34 \times 33}{3}$

$\begin{array}{l}{x=\frac{2244}{3}} \\\\ {x=\frac{3168}{3}} \\\\ {x=748}\end{array}$

Time it will take to fill the pool = 748 hrs

5 0

3 years ago