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3 years ago

What is the value of f?

Mathematics

1 answer:

laiz [17]3 years ago

5 0

Answer:

f(1/2) = -2

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

<u>Algebra I</u>

Function Notation

Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = 8x - 6

f(1/2) is x = 1/2

<u>Step 2: Evaluate</u>

Substitute in <em>x</em>: f(1/2) = 8(1/2) - 6
Multiply: f(1/2) = 4 - 6
Subtract: f(1/2) = -2

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What is the side length of a square with the area of 20cm2

rodikova [14]

Answer:

S = a² => 20 = a² => a = √20 ≈ 4.5 cm

Step-by-step explanation:

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3 years ago

rene charges $2.25 for gasoline plus $8.50 per hour for mowing lawns what is x the number of hours he has to mow lawns to earn t

Black_prince [1.1K]

2.25 + 8.50x = 50

8.50x = 50 - 2.25

8.50x = 47.75
——— ———
8.50. 8.50

x = 5.6 hours

Hope that helps :)

4 0

4 years ago

The diagram below shows 5 identical bowls stacked one inside the other. The height of 1 bowl is 2 inches. The height of 5 bowls

padilas [110]

(Bowls, Height) (1, 2) (5,5)

Slope is (5-2)/(5-1) = 3/4 inch
y = (3/4)x + b
(2) = (3/4)(1) + b
(2)-(3/4) = b

B=1.25. Y= 0.75*x + 1.25.

Part B
X is the number of bowls in the stack and Y is the corresponding height of the stack.

7 0

3 years ago

Find the area and perimeter of the square 6 meters

Mkey [24]

The formula for finding area of a square is:

$length \times width$

In a square, all the sides are the same. Each side is 6 meters long. Plug in 6 to the formula.

$length \times width \rightarrow 6 \times 6$

Multiply:

$6 \times 6 = 36$

The area of the square is 36 m²

<h2>PERIMETER</h2>

Perimeter is the distance around a shape. To find perimeter, you have to add all all the side lengths. The formula for finding perimeter is:

$2(l) \times 2(w)$

Remember that squares have 4 sides, and all length(s) and width(s) measure the same. The length and width measure the same. Plug in the numbers into the formula:

$2(l) + 2(w) \rightarrow 2(6) + 2(6)$

Simplify:

$2(6) + 2(6) = 12 + 12$

Add:

$12 + 12 = 24$

The perimeter of the square is 24 m

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3 years ago

Hong needs to memorize words on a vocabulary list for Russian class. He has 14 words to memorize, and he is one-half done. How m

GREYUIT [131]

Step-by-step explanation:

He has done one half = ½

Finding ½ of 14

½ × 14

Hence, Hong has memorized 7 words

5 0

3 years ago