Ask question

Ask question

All categories

2 years ago

13

F(x) = 2x² + 8x Find f(-1)

2 answers:

inysia [295]2 years ago

8 0

Answer:

-6

Step-by-step explanation:

2(-1)^2 + 8*-1 = 2*1+8*-1=2-8=-6

kodGreya [7K]2 years ago

4 0

Answer:

-6

Step-by-step explanation:

f(-1) for x

2x^2+8x

2(-1)^2+8(-1)

2-8

-6

You might be interested in

The area of a circle is 3.14 square meters. What is the circle's radius?

lyudmila [28]

Answer:

1 m

Step-by-step explanation:

3.14 meter = 3.14/3.14 = 1 meter

sqrt.1 = 1 meter

4 0

2 years ago

Read 2 more answers

Teachers were asked what their favorite ice cream was. The ratio of teachers that prefer rocky road to mint is 5 to 2. If there

DerKrebs [107]

28 teachers prefer mint.

Step-by-step explanation:

Given,

Total number of teachers = 98

Ratio of teacher that prefer rocky road to mint = 5:2

Let,

x be the original number.

Teachers who like rocky road = 5x

Teachers who like mint = 2x

$5x+2x=98\\7x=98$

Dividing both sides by 7

$\frac{7x}{7}=\frac{98}{7}\\x=14$

Teachers who prefer mint = 2x = 2(14) = 28

28 teachers prefer mint.

Keywords: ratio, division

Learn more about division at:

#LearnwithBrainly

6 0

2 years ago

Solve 2(x-1) =4 xxxxxx

sineoko [7]

2(x-1)=4
2x-2=4
2x=6
x=3

4 0

3 years ago

What do you need to add 13/4 to make 4

Fudgin [204]

Add 3/4 which becomes 16/4 which becomes 4

3 0

2 years ago

Simplify 8gh x 2g2 x 3h

icang [17]

<em>8gh x 2g2 x 3h</em>

<em>Simplified is 8 · 3 gghhxx ·2 · 2 </em>

<em>and can also be:</em>

<em>8ghx · 2g · 2x · 3h </em>

<em>24g ₁ ₊ ₁ h ₁ ₊ ₁ x ₁ ₊ ₁ · 2 ₁ ₊ ₁</em>

8 0

2 years ago