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2 years ago

I think of a number multiply it by 3 and add 6 the result is 21 what is the number

Mathematics

1 answer:

Anton [14]2 years ago

4 0

Answer:

Step-by-step explanation:

5x3=15

15+6=21

Hope this helped pls give brainliest

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linda is building a rectangular playhouse. the width is x feet. the length is x + 3 the distance around the base of the playhous

Zanzabum

No. The value of x is 7.5 feet.

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2 years ago

The function y = f (x) is graphed below. What is the average rate of change of the function f(x) on the interval - 1 ≤ x ≤ 3?

jonny [76]

Answer:

$\displaystyle -2$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Average Rate of Change: $\displaystyle \frac{f(b) - f(a)}{b - a}$

Step-by-step explanation:

Step 1: Define

Interval -1 ≤ x ≤ 3

a = -1, b = 3

f(a) = f(-1) = 4

f(b) = f(3) = -4

Step 2: Find Average

Substitute in variables [ARC]: $\displaystyle \frac{f(3) - f(-1)}{3 + 1}$
Substitute: $\displaystyle \frac{-4 - 4}{3 + 1}$
[Fraction] Subtract/Add: $\displaystyle \frac{-8}{4}$
[Fraction] Divide: $\displaystyle -2$

4 0

2 years ago

PLEASE ANSWER ILL GIVE YOU BRIANLIEST

GREYUIT [131]

Answer:

I Think It's 523.6 I don't know Tho

Step-by-step explanation:

6 0

1 year ago

Read 2 more answers

Help asap please does the graph represent a function

Anni [7]

Yes it represents a function.

4 0

2 years ago

Read 2 more answers

Explain (1+y)^2 how does it turn into 1+2y+y^2 ? i don't understand

Greeley [361]

I will show you the steps on how you get that answer and if you have any questions after that let me know and I'd be more than happy to help answer them for you.
The first step for solving (1 + y)² is to use the equation (a + b)² = a² + 2ab + b² to expand the expression.
1² + 2 × 1y + y²
1 raised to any power equals 1,, so remove the power.
1 + 2 × 1y + y²
Calculate the product of 2 × 1y.
1 + 2y + y²
Finally,, use the commutative property to reorder the terms.
y² + 2y + 1
Let me know if you have any further questions.
:)

6 0

2 years ago