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alina1380 [7]
3 years ago
12

In the following math problem, which operation should you do FIRST? 8 + 3(72 x 4) – 5 ÷ 2

Mathematics
2 answers:
maxonik [38]3 years ago
8 0
PEMDAS says do this order of operations: parentheses, exponents, multiplication, division, addition, subtraction.
So, 72x4 is the first step.
posledela3 years ago
3 0
According to the PEMDAS rule
the parentheses () should be solved first
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What would you have to do to change 10 cubic feet into cubic inches?
andrezito [222]

1 foot = 12 inches

(1 foot)³ = (12 inches)³

12³ = 1,728 in³


To change 10 cubic feet into cubic inches

10 ft³ x 1728 in³/ft³ = 17,280 in³

So the answer will be:
C. Multiply by 1,728
3 0
3 years ago
A straight line has a slope of 2.08. Calculate the angle that the line makes with the x (horizontal) axis.
zubka84 [21]

Answer:

The angle that the line makes with x-axis of of 64.3º.

Step-by-step explanation:

Equation of a line, and angle with the x axis:

The equation of a line has the following format:

y = mx + b

In which m is the slope.

The angle that the line makes with the x axis is given by the angle which has tangent m, that is, a = \tan^{-1}{m}.

In this question:

We have that m = 2.08. So

a = \tan^{-1}{2.08} = 64.3

The angle that the line makes with x-axis of of 64.3º.

4 0
3 years ago
A rental company charges $15 plus $4 per hour to rent a bicycle. If Margie does not want to spend more than $27 for her rental,
serious [3.7K]
15 + 4(h) = 27 
27 - 15 = 12
12/4 = 12 
Margie can rent the bicycle for 4 hours. 
8 0
3 years ago
Evaluate each expression
solmaris [256]

Answer:

4 * 4 ÷ 4 = 4

8 ÷ (2*2) = 2

Step-by-step explanation:

4 * 4 \div4\\\rule{150}{0.5}\\\text{Use PEMDAS}\\\\4 * 4 \div4\\\\4 * 1\\\\\boxed{4}

==============================

8 \div (2*2)\\\rule{150}{0.5}\\\text{Use PEMDAS}\\\\8 \div (2*2)\\\\8 \div 4\\\\\boxed{2}

I hope this helps.

5 0
2 years ago
Find the slope of the given points (3, 4) and (7,-4).<br> A)-1/2<br> B) 2<br> C) -2<br> D) 0
kakasveta [241]

Answer:

-2

Step-by-step explanation:

y = kx + n

When you insert the given points you get

3k + n = 4 \\

7k + n =  - 4 \\

Than you multiply the first one by - 1 and sum it with the second to get rid of n

4k =  - 8 \\ k =  - 2

7 0
3 years ago
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