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2 years ago

Neeeeeddd helllppppp

Mathematics

1 answer:

yanalaym [24]2 years ago

6 0

Answer:

c. 2+2 is 4 - 1 thats 3 quick mafs

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Help pleasseeee If f(x)=3x^2-7x find f(-2)

LenKa [72]

Answer:

f(-2) = 26

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Function Notation

Step-by-step explanation:

Step 1: Define

f(x) = 3x² - 7x

f(-2) is x = -2

Step 2: Evaluate

Substitute in x: f(-2) = 3(-2)² - 7(-2)
Exponents: f(-2) = 3(4) - 7(-2)
Multiply: f(-2) = 12 + 14
Add: f(-2) = 26

6 0

2 years ago

9 less than a number can be written as

Liono4ka [1.6K]

Answer:

9 less can be written as -9

7 0

2 years ago

Read 2 more answers

What is the distance between Harry’s home and his office?

Svetach [21]

Answer:

The distance between Harry’s home and his office? is 15 miles.

Step-by-step explanation:

The speed, distance time formula is:

$Speed(s)=\frac{Distance(d)}{Time(t)}$

Given:

Speed (s) = 30 miles/hour

Then the relation between distance and time is:

$s=\frac{d}{t} \\30=\frac{d}{t}\\d=30t...(i)$

If Speed was 60 miles/hour the time taken is $(t-\frac{1}{4})$ hours.

Then the relation between distance and time is:

$s=\frac{d}{t} \\60=\frac{d}{(t-\frac{1}{4}) }\\d=60t-15...(ii)$

Use the value of d = 30t in (ii)

$d=60t-15\\30t=60t-15\\30t=15\\t=\frac{1}{2} hour$

Determine the distance as follows:

$d=30t\\=30\times\frac{1}{2} \\=15\ miles$

Thus, the distance between Harry’s home and his office? is 15 miles.

5 0

3 years ago

Answers are highly appreciated!

Ksenya-84 [330]

C
Because I had this question

6 0

2 years ago

Read 2 more answers

The quotient of a number and -4 is -9

natima [27]

Answer:36

Step-by-step explanation:36÷ -4 = -9

4 0

2 years ago