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3 years ago

Anyone know how to work this problem? I need to find the domain and range

Mathematics

2 answers:

tamaranim1 [39]3 years ago

8 0

Answer:

Step-by-step explanation:

Domain : [-9,-3]

Range: [2,6]

Blababa [14]3 years ago

8 0

Answer:

um I think it's the range is 30

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F(x)=2x^(2)-5x-20 find f(-9)

Fed [463]

Answer:

Step-by-step explanation:

$f(x) = 2 {x}^{2} - 5x - 20$

To find f(-9) , substitute the value of x that's - 9 into f (x). That is for every x in f(x) replace it with - 9

We have

$f( - 9) = 2 ({ - 9})^{2} - 5( - 9) - 20 \\ = 2(81) + 45 - 20 \\ = 162 + 25 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ = 187 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$

We have the final answer as

Hope this helps you

7 0

3 years ago

Read 2 more answers

Match each pair of points to the equation of the line that is parallel to the line passing through the points. Tiles: B(5, 2) an

agasfer [191]

Can somone pls help me

7 0

3 years ago

1. Julia is selling jewelry at the Hazel Park Memorial Festival, She sells earrings for $5

inna [77]

Answer:

Step-by-step explanation:

e = earrings and b = bracelets

so each earring cost 5 bucks.....5e

and each bracelet cost 7 bucks.....7b

and she hopes to make $ 300...

so ur equation is : 5e + 7b = 300 <===

5 0

3 years ago

Car Value A family buys a car for 20,000The value of the car decreases about 20% each year. After 6 yr, the family decides to se

Advocard [28]

Answer:

No, the car is losing value not gaining it.

Step-by-step explanation:

3 0

3 years ago

-1/2+ 7/8- 1/10<br><br> Hint: rational numbers

ki77a [65]

After solving $-\frac{1}{2}+\frac{7}{8}-\frac{1}{10}\\$ we get $\frac{11}{40}$

Step-by-step explanation:

We need to solve the following expression:

$-\frac{1}{2}+\frac{7}{8}-\frac{1}{10}\\$

Solving the above expression we need to find the LCM of denominators: 2,8,10

The LCM of 2,8,10 is 40

$-\frac{1}{2}+\frac{7}{8}-\frac{1}{10}\\=\frac{-1*20+7*5-1*4}{40}\\=\frac{-20+35-4}{40}\\=\frac{11}{40}$

So, after solving $-\frac{1}{2}+\frac{7}{8}-\frac{1}{10}\\$ we get $\frac{11}{40}$

Keywords: Rational Numbers

Learn more about Rational Numbers at:

#learnwithBrainly

3 0

3 years ago