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3 years ago

13

the cost was 27.00$ before tax what expressions can be used to figure the total cost with tax let x represent the amount before

tax

1 answer:

Lena [83]3 years ago

6 0

Answer:

45

Step-by-step explanation:

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Radius of a circle with a circumference of 50.26

klio [65]

Answer:

16 cm

Step-by-step explanation:

Circumference is equal to 2 pi r.

Isolating r gives us C/2pi = r

50.26/2pi = 8, exactly.

Diameter is equal to 2r, so the diameter is 16 cm.

7 0

3 years ago

Read 2 more answers

Can someone help me with this ASAP I’ll give you brainlist if I got it correct

lutik1710 [3]

Close to zero and unlikely

3 0

3 years ago

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1 1/3 divided by 3 + 1/3

Phantasy [73]

The first step to solve this problem is to convert the first mixed number to an improper fraction.
$\frac{4}{3}$ ÷ 3 + $\frac{1}{3}$
Dividing is equivalent to multiplying with the reciprocal value,, so next you will need to change the signs.
$\frac{4}{3}$ x $\frac{1}{3}$ + $\frac{1}{3}$
Multiply the fractions
$\frac{4}{9}$ + $\frac{1}{3}$
Finally,, add the two fractions together to get your final answer
$\frac{7}{9}$
This means that the correct answer to your question is $\frac{7}{9}$ .
Let me know if you have any further questions
:)

3 0

4 years ago

a test consists of 10 multiple choice . to pass the test a student must answer exactly 5 of the questions correctly. if a studen

s2008m [1.1K]

Complete question :

A test consists of 10 multiple choice questions. Each question has 5 choices. To pass the test, a student must answer at least 6 questions correctly. If a student guesses on each question, the probability of getting it right is 20%. What is the probability that the student will pass the test?

Answer:

0.006370

Step-by-step explanation:

Number of options = 5, with only one correct,hence, p = 1/5 = 0.2

Number of questions = 10

Number of correct answers required to pass = 6

Using binomial distribution formula :

P(x =x) = nCx * p^x * (1 - p)^(n - x)

p = 0.2 ; 1 - 0.2 = 0.8

n = 10 ; x = 6

P(x ≥ 6) = p(6) + p(7) + p(8) + p(9) + p(10)

The formula above can be used to obtain the individual probabilities then taking the sum or we can obtain the solution using a calculator ;

Using a binomial probability distribution calculator with the parameters given :

P(x ≥ 6) = 0.0063693824

= 0.006370 ( 4 decimal places)

3 0

3 years ago

What is the following sum in simplest form? StartRoot 8 EndRoot 3 StartRoot 2 EndRoot StartRoot 32 EndRoot 3 StartRoot 8 EndRoot

Marina CMI [18]

The sum of the equation is $9\sqrt{2}$ and it can be determined by using addition and it can be determined by summation rule in the equation.

<h2>Given that,</h2>

Equation; $\sqrt{8} +3\sqrt{2} +\sqrt{32}$

<h3>We have to determine</h3>

The sum of the equation.

<h3>According to the question,</h3>

To determine the sum of the equation following all the steps given below.

<h3>Equation; $\sqrt{8} +3\sqrt{2} +\sqrt{32}$ </h3>

The sum of the equation is determined by factorizing the equation,

Then,

The sum of the equation is,

$=\sqrt{8} +3\sqrt{2} +\sqrt{32}\\\\= \sqrt{2\times 2\times2 }+ 3\sqrt{2} +\sqrt{2\times 2\times2 \times 2\times2 }\\\\= 2\sqrt{2} + 3\sqrt{2} + 2\times 2\sqrt{2} \\\\= 2\sqrt{2} + 3\sqrt{2} + 4\sqrt{2} \\\\= 9 \sqrt{2}$

Hence, The required sum of the equation is $9\sqrt{2}$ .

For more details about Addition refer to the link given below.

brainly.com/question/25996972

6 0

3 years ago