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Tatiana [17]
3 years ago
9

F(x)=−2x^2+2x−20 Find f(−8)

Mathematics
2 answers:
sammy [17]3 years ago
7 0

Answer:  -164

Step-by-step explanation:

bija089 [108]3 years ago
4 0

Answer:-164

Step-by-step explanation:

−2(−8)

2

+2(−8)−20

Plug into each x-value

−

2

(

64

)

+

2

(

−

8

)

−

20

−2(64)+2(−8)−20

Square first

−

128

−

16

−

20

−128−16−20

Multiply

f

(

−

8

)

=

−

164

f(−8)=−164

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(3x + 5)º<br> (6x + 13)°
Zigmanuir [339]

Answer: 18x2 + 69x + 65

Step-by-step explanation:

(3x + 5) (~6x + 13)

1. 3x(6x + 13) + 5(6x + 13)

2. 18x2 + 39x + 5(6x + 13)

3. 18x2 + 39x + 30 + 65

4. 18x2 + 69 + 65

6 0
3 years ago
I need help ASAP, please help as soon as possible
kari74 [83]
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112-40 =4.5p
72= 4.5p
72/4.5 = p
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3 0
3 years ago
Solve the system of equations using the substitution method.
andre [41]
Answer: (-0.0549,-1.0732)
8 0
3 years ago
Read 2 more answers
Mary used one big bag of flour. She baked four loaves of bread.​ Then, she used the remaining flour to make 48 muffins. How much
lorasvet [3.4K]

Answer:

Amount of flour in the bag when Mary​ began = 4x+48y

Step-by-step explanation:

Given:

Number of baked loaves of bread made from flour = 4

Number of muffins made from flour = 48

To find: Amount of flour in the bag when Mary​ began

Solution:

Let x denotes amount of flour used to make one baked loave of bread and y denotes amount of flour used to make one muffin.

So,

Amount of flour used to make 4 baked loaves of bread = 4 x

Amount of flour used to make 48 muffins = 48 y

Amount of flour in the bag when Mary​ began = 4x+48y

3 0
3 years ago
How many centimeters are there in 1 yard if there are 2.54 centimeters per inch? Show your work and express your answer without
sasho [114]

Answer: 91.44

Step-by-step explanation:

There are 3 feet in a yard, 12 inches in a foot. 2.54 x 12= 30.48

30.48 x 3= 91.44

I hope this helps!

3 0
3 years ago
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