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3 years ago

Using the order of operations. select true or false for 81 ÷ 9 + 2 = 11

2 answers:

8 0

Since division goes before addition we first divide 81:9 and get 9 and to that we add 2 addition goes after division. 9+2 is equal to 11 so the answer is True.

A good way to remember it is:

Parenthesis

Exponents

Multiplication

Division

Addition

Subtraction

Hope this helps! <3

Flura [38]3 years ago

6 0

Answer: true

Step-by-step explanation: Using the order of operations, 81 / 9 would be first, which is equal to 9. Then, add 2. 2+9 = 11, so the answer is true.

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A leaking pond looses 18 gallons of water in 34 hours , how many gallons will be left after 41 hours

Ann [662]

The amount of water left = 21.3 gallons.

We have a leaking pond which looses 18 gallons of water in 34 hour.

We have to determine how many gallons of water will be left after 41 hours.

<h3>What do you understand by gallon?</h3>

The gallon is a unit of volume in imperial units and United States customary units.

I gallon = 231 cubic inches = 3.785411784 liters.

According to question, we have -

Amount of water lost by the pond in 34 hours = 18 gallons

Therefore -

Amount of water lost by the pond in 1 hour = $\frac{18}{34}$

So, the amount of water loosed by the pond in 41 hours = $\frac{18}{34}\times 41$ = 21.3

Hence, the amount of water left = 21.3 gallons.

To solve more questions on Quantity Measurements , visit the link below-

brainly.com/question/1153577

#SPJ1

3 0

2 years ago

Which expression is equivalent to 6–3?

Bond [772]

Your question is not well presented. See complete question below

Which expression is equivalent to $6^{-3}$ ?

A) –63

B) 36

C) $\sqrt[3]{6}$

D) $(\frac{1}{6} )^3$

Answer:

The equivalent of $6^{-3$ is $(\frac{1}{6} )^3$

Step-by-step explanation:

Given

Expression: $6^{-3}$

Required:

Find the Equivalent Expression

To find the equivalent of this expression, we make use of law of indices.

One of the laws of indices states that

$a^-b = \frac{1}{a^b}$

If we apply this law to the expression above ( $6^{-3}$ )

By comparison a = 6 and b = 3.

So, $6^{-3}$ becomes

$6^{-3}$ = $\frac{1}{6^3}$

Simplifying further;

$\frac{1}{6^3}$ = $\frac{1}{6 * 6 * 6}$

This can also be written as

$\frac{1}{6^3}$ = $\frac{1*1*1}{6 * 6 * 6}$

By splitting the above expression; we have that

$\frac{1}{6^3}$ = $\frac{1}{6} * \frac{1}{6} * \frac{1}{6}$

Multiplication law of indices states that;

a * a * a = a³. (Because they have the same base of a)

So, $\frac{1}{6} * \frac{1}{6} * \frac{1}{6}$ can then be written as $(\frac{1}{6} )^3$

Hence, $\frac{1}{6^3}$ = $(\frac{1}{6} )^3$

So, the equivalent of $6^{-3}$ is $(\frac{1}{6} )^3$

7 0

3 years ago

What is a gcf for 216 and 54 drawing?

Verizon [17]

Your answer is 54, the drawing is a bit wrong because I did the prime factor tree of 54 wrong, so you'd do 2 × 3 × 3 × 3 which is 54.

5 0

3 years ago

If this is the graph of f(x)=a^(x+h)+k then the domain is.....

DochEvi [55]

Answer:

Step-by-step explanation:

The domain are all the possible values for x. For this graph the domain will continue on forever in both the positive and negative direction, so (-∞, ∞).

The range are all possible values for y. For this graph, k affects the height of the graph. Since k affects how far up/ down you move the graph, therefore (k, ∞)

The h in the equation shows how far you move the graph to the left/right.

4 0

3 years ago

What are some equivalent fractions for 1/20

Talja [164]

Some equivalent fractions of 1/20 are:
<span>1/20 = 2/40 = 3/60 = 4/80 = 5/100 = 6/120 = 7/140 = 8/160 = 9/180 = 10/200 = 11/220 = 12/240 = 13/260 = 14/280 = 15/300 = 16/320 = 17/340 = 18/360 = 19/380 = 20/400</span>

3 0

3 years ago

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