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olga2289 [7]
2 years ago
14

Your friend is looking at laptops for college, and is comparing the different

Mathematics
1 answer:
Dominik [7]2 years ago
7 0

Answer:

B. h = 7.4 inches

Step-by-step explanation:

height of the laptop screen = h

d = 12.1 in.

w = 9.6 in.

We are given the formula,

d = √(w² + h²)

Plug in the values and solve for h

12.1 = √(9.6² + h²)

Square both sides

12.1² = 9.6² + h²

146.41 = 92.16 + h²

146.41 - 92.16 = h²

54.25 = h²

√54.25 = h

7.4 = h (nearest tenth)

h = 7.4 inches

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Which function is a quadratic function? u(x) = –x 3x2 – 8 v(x) = 2x2 8x3 9x y(x) = x2 3x5 4 z(x) = 7x2 2x3 – 3.
Komok [63]

The function u(x)=-x+3x^{2} -8 is a quadratic function due to the highest exponent being 2.

Given functions are:

u(x)=-x+3x^{2} -8

v(x)=2x^{2} +8x^3+9x

y(x)=x^{2} +3x^5+4

z(x) =7x^{2} +2x^3-3

<h3>What is a quadratic function?</h3>

A function of the form f(x)=ax^{2} +bx+c with a\neq 0 is called a quadratic function means the highest exponent of polynomial should be 2.

Let us check one by one.

u(x)=-x+3x^{2} -8

Highest exponent =2

The function is also of form f(x)=ax^{2} +bx+c so u(x) is a quadratic function.

The functions v(x), y(x), and z(x) are having highest exponents as 3,5, and 3 respectively so they are not quadratic functions.

Hence, the function u(x)=-x+3x^{2} -8 is a quadratic function due to the highest exponent being 2.

To get more about quadratic functions visit:

brainly.com/question/1214333

7 0
2 years ago
I need find volumen i need help ​
ValentinkaMS [17]

Answer:

it's 512

Step-by-step explanation:

5 0
2 years ago
Leo's age is three times Stan’s age. In five years, Leo will be twice as old as Stan. How old is each now?
aleksandr82 [10.1K]

Answer:


Step-by-step explanation:

L=3S

In 5 years,

L+5=2(S+5)

L+5=2S+10

L=2S+5

 Substituting from above,

3S=2S+5

S=5

So then,

L=3(5)

L=15

6 0
3 years ago
Which two intergers is 105 between?
Leviafan [203]

Answer:

106 and 107

Step-by-step explanation:

Integers are just numbers that doesn't have a decimal point.

1, 2, 3, 4, and 5 are integers.

1.123, 2.45312, 3.5, 7.9 are NOT integers

105 is between 106 and 107.

5 0
3 years ago
Bradley paid $33.53 for 7 gallons of milk. What is the price per milk gallon
katrin2010 [14]

Answer:

The Answer is 4.79

Step-by-step explanation:

All you have to do Divide 33.53 by 7 then you would get 4.79

I say divide because they want to know how much it one gallon of milk costs  So that is  why you have to divide

Hope I Helped! :3

3 0
3 years ago
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