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2 years ago

Determine the absolute value of 5. A) -5 B) 0 C) 10 D) 5

Mathematics

2 answers:

dolphi86 [110]2 years ago

8 0

D
You figure out the absolute value by determining how far the number is from the point 0 on a number line.

Bingel [31]2 years ago

6 0

A because 5 is 5 away from 0 and -5 is 5 away from 0

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Which polynomial represents the difference below 5x^2+9x+3-(x^2-3x)?

neonofarm [45]

$5x^2+9x+3-(x^2-3x)=5x^2+9x+3-x^2+3x\\\\=(5x^2-x^2)+(9x+3x)+3=4x^2+12x+3$

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3 years ago

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Vladimir [108]

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2 years ago

3. half of 42, increased by 5

OlgaM077 [116]

Answer:

Step-by-step explanation:

Half of 42 is 21.

21 + 5 = 26

Hope this helps you out ; )

3 0

3 years ago

What is the volume of the cone below? ):

svetoff [14.1K]

Answer:

A. 112π units³

General Formulas and Concepts:

Symbols

π (pi) ≈ 3.14

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Geometry

Volume of a Cone Formula: $\displaystyle V = \frac{1}{3} \pi r^2h$

r is radius
h is height

Step-by-step explanation:

Step 1: Define

Radius r = 4

Height h = 21

Step 2: Find Volume

Substitute in variables [Volume of a Cone Formula]: $\displaystyle V = \frac{1}{3} \pi (4)^2(21)$
Evaluate exponents: $\displaystyle V = \frac{1}{3} \pi (16)(21)$
Multiply: $\displaystyle V = \frac{16 \pi}{3}(21)$
Multiply: $\displaystyle V = 16 \pi \cdot 7$
Multiply: $\displaystyle V = 112 \pi$

8 0

2 years ago

Y=x+1 3x-2y=5 solve using substitution

miskamm [114]

Answer: (4, 5)
Work:
Substitute the y in the second problem with y=x+1
3x-2(x+1)=5
3x-2x+1=5
x=4
Now solve for y
y=4+1
y=5

6 0

2 years ago

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