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Likurg_2 [28]
3 years ago
12

Simplify the expression. 4+9⋅2÷3−1

Mathematics
1 answer:
Tanzania [10]3 years ago
5 0

4+9⋅2÷3−1

Use PEMDAS

P= parenthesis

E= exponents

M= multiplication

D= division

A= addition

S= subtraction

9*2= 18

4+18 ÷3-1

4+6-1

10-1

Answer: 9

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If 2 inches are equivalent to 5 centimeters, how many square centimeters are in one square inch
Sonja [21]

Answer:

there are 6.45 or 6.5 square cm in one square inch

Step-by-step explanation:

6 0
2 years ago
What is 2x-3=4(x-5)? And also what is 2x squared=50?
Ierofanga [76]
2x - 3 = 4(x - 5)
2x - 3 = 4x - 20
4x - 2x = 20 - 3
2x = 17
x = 8 1/2

2x² = 50
x² = 25
x = \pm√25
x = \pm5


6 0
3 years ago
A cylinder has a height of 14 centimeters and a radius of 17 centimeters. What is its volume? Use ​ ≈ 3.14 and round your answer
9966 [12]
<h2><u>Answer</u></h2>

Volume = \sf{\pi r^2 h}

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6 0
3 years ago
Simplify: square root of 81+18<img src="https://tex.z-dn.net/?f=%5Csqrt%7B7%7D" id="TexFormula1" title="\sqrt{7}" alt="\sqrt{7}"
Lemur [1.5K]

\sqrt{81 \:  +  \: 18 \sqrt{7}  \:  +  \: 7}

  • Factor the indicated expression:

\sqrt{(9 \:  +  \:  \sqrt{7} ) ^{2} }

  • Simplified the index, the root and also the exponent using the number 2.

\boxed{ \bold{9 \:  +  \:  \sqrt{7} }}

<h3><em><u>MissSpanish</u></em> </h3>
5 0
2 years ago
Please help :( I don’t know this one:/
ipn [44]

Answer:

i think is D

Step-by-step explanation:

because 2×7=21

3×21=63

and the parent still going

4 0
3 years ago
Read 2 more answers
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