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4 years ago

Evaluate the expression and enter your answer in the box below. 16+ [1 + 21

Mathematics

1 answer:

Olenka [21]4 years ago

4 0

16 + [1 + 21]

16 + 22

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You send 12 text messages in one day. The total cost $2.28. How much does each text message cost

Lesechka [4]

Answer:

.19

Step-by-step explanation:

5 0

4 years ago

Read 2 more answers

Is a proportional function f(x) = 5x linear? Why or why not? Explain with an example.

RideAnS [48]

Given two variables x and y, y is directly proportional to x (x and y vary directly, or x and y are in direct variation) if there is a non-zero constant k such that

y = kx,

The relation is often denoted, using the ∝ symbol, as

y ∝ x

in this case k = 5/1

6 0

3 years ago

Sandra calculated the height of a cylinder that has a volume of 576 π cubic centimeters and a radios of 8 centimeters. Her work

Julli [10]

Answer:

$\boxed{Height \: of \: cylinder = 9 \: centimeters}$

Given:

Volume of cylinder = 576π cubic centimeters

Radius of cylinder (r) = 8 centimeters

Step-by-step explanation:

Let the height of cylinder be 'h'

$= > Volume \: of \: cylinder = \pi {r}^{2} h \\ \\ = > 576 \cancel{\pi} = \cancel{ \pi}( {8}^{2} )h \\ \\ = > 576 = 64h \\ \\ = > 64h = 576 \\ \\ = > h = \frac{576}{64} \\ \\ = > h = 9 \: centimeters$

Height of cylinder = 9 centimeters

3 0

3 years ago

Can you please help me this homework?

Elina [12.6K]

Answer & Step-by-step explanation:

Working from the inner circle out:

Natural Numbers: <em>1,2,3,4</em>

These are the numbers you would use to count

Whole Numbers:<em> 0,1,2,3</em>

The natural numbers and zero

Integers:<em> -3,-2,-1,0,1,2,3</em>

The natural numbers, their opposites, and zero

Rational Numbers: $-\frac{1}{2}, 0.22222222....,1,2,\frac{2}{3} ,\frac{5}{4} ,6.1$

-are all numbers that you can write as a quotient of integers $\frac{a}{b}, b\neq 0$

-include terminating decimals. For example, $\frac{1}{8}=0.125$

-include repeating decimals. For example, $\frac{1}{3}=0.333333...$

In the rectangle:

Irrational Numbers: $\sqrt{2} ,\pi$

-have decimal representations that neither terminate nor repeat. For example, $\sqrt{2} =1.414213...$

-cannot be written as quotients of integers

5 0

3 years ago

Which statement is true?

Ray Of Light [21]

We will see that the fourth statement:

"-0.3*|3 + 8x| = 0.9 has no solutions."

Is the true statement.

<h3>Which statement is true?</h3>

Here we need to see which statement regarding absolute value equations is true.

Here you can see that the fourth statement is:

-0.3*|3 + 8x| = 0.9 has no solutions.

Now, if you look at the left side of the above equation, the left side will always be negative, while the right side is positive, then the equation can't have a solution.

There is no value of x that makes that equation true, so it is true that the given equation has no solutions. This is the correct statement.

If you want to learn more about absolute values, you can read:

brainly.com/question/1782403

5 0

3 years ago