3 years ago

Alegebraic Expressions and the order of operations

Mathematics

1 answer:

Butoxors [25]3 years ago

5 0

Answer:

PEMDAS:

Parenthesis

Exponents

Multiplication(from left to right)

Division(from left to right)

Addition(from left to right)

Subtraction(from left to right)

Step-by-step explanation:

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Solve -6 = b/2 a.12 b.3 c. -3 d. -12

Anon25 [30]

I hope this helps you

-6.2= b

b= -12

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3 years ago

A water sprinkler covers a circular area with a diameter of 20 feet. If it is set to cover only an arc measuring 120 degrees, wh

Wewaii [24]

Answer:

The sprinkler will cover 104.66 square feet

Explanation:

A water sprinkler covers a circular area with a diameter D= 20 feet

and radius r = 10 feet

Arc measuring degrees = 120 degree

Area of the Arc = $\frac{120}{360} \times \pi \times r^2$

= $\frac{1}{3} \times \pi \times 10^2$

= $\frac{1}{3} \times 3.14 \times 10 \times 10$

= 104.66

The sprinkler will cover an arc area covering 104.66 square feet

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3 years ago

Finding the percent of increase or decrease

madam [21]

What is the question

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3 years ago

What value of x would result in the numerical value of zero in the expression 7+x+(−10) ?

sergejj [24]

Answer:

x = 3

Step-by-step explanation:

So if we plug in 3 to 7+x+(-10), it simplifys to

7+3+(-10)

10+(-10)

10-10 = 0

x=3

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3 years ago

How do I solve this?

laila [671]

The < is just like and equal sign just looks a little different think of it that was for the first couple steps. So you have 13-3y<-5. First do, -5+13=8. Now you have -3y<8. Then your want to do 8 divided by -3 and you get=-2.666666667 and that equals y.

-2.7=y then make that equal sign into the normal sign again. -2.7

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3 years ago

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