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Ulleksa [173]
3 years ago
15

What is 18+ (8+4-9)= Please show step by step

Mathematics
2 answers:
8_murik_8 [283]3 years ago
5 0
Answer: 21

Reasoning:

nataly862011 [7]3 years ago
3 0

Answer:

21

Step-by-step explanation:

PEMDAS

P- Parantheses

E- Exponents

M- Multiplication

D- Division

A- Addition

S- Subtraction

-------------------------

First in Pemdas is parantheses , so you add the 8+4 first because Addition is before subtraction. Which is three, next is 3+18. Which is 21.

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Which of the sentence is true?
algol13

Answer:

The graph of the circle is not a function

4 0
2 years ago
What ordered pair is a solution of the equation?<br><br> y=-2x-5
ioda

\sf \underline{Answer:}

Pick any value for x, like x = 0, plug it into the equation, and get the value for y. For x = 0,

2(0) + y = 5

y = 5

The ordered pair is (0,5). Find other ordered pairs using the same reasoning.

3 0
1 year ago
Read 2 more answers
The area of the regular hexagon is 10.4 in.2. a regular hexagon has side lengths of 2 inches and an area of 10.4 inches squared.
VARVARA [1.3K]

Answer:

  (b)  1.7 in

Step-by-step explanation:

The area of a regular polygon in terms of perimeter and apothem is given by the formula ...

   A = 1/2Pa

For a hexagon, the perimeter is 6 times the side length, so this becomes ...

  A = 1/2(6s)a = 3sa . . . . . for side length 's' and apothem 'a'

__

Solving for the apothem, we find ...

  a = A/(3s)

For the given values of area and side length the apothem is ...

  a = 10.4/(3·2) = 1.733... ≈ 1.7 . . . inches

The apothem, rounded to tenths, is 1.7 inches.

5 0
2 years ago
What would y be if 8x-6y=36
kondor19780726 [428]

Answer:

\quad y=-\frac{2\left(-2x+9\right)}{3}

Step-by-step explanation:

1. Subtract 8x from both sides:

8x-6y-8x=36-8x

2. Simplify:

-6y=36-8x

3. Divide both sides by -6

\frac{-6y}{-6}=\frac{36}{-6}-\frac{8x}{-6}

4. Simplify to get answer

8 0
3 years ago
Use distributive property to rewrite 3×546​
sergij07 [2.7K]

Answer:

1638

Step-by-step explanation:

3(500)+3(40)+3(6)=1500+120+18=1638

4 0
2 years ago
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