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alisha [4.7K]
3 years ago
5

What is x²-3x+8 if x=4

Mathematics
2 answers:
kari74 [83]3 years ago
6 0

Answer:

12

Step-by-step explanation:

Substitute x = 4 into the expression

4² - 3(4) + 8 = 16 - 12 + 8 = 12

Oxana [17]3 years ago
4 0

Answer:

12

Step-by-step explanation:

x²-3x+8

Plug in:

(4)²-3(4)+8

Use PEMDAS:

P - Parentheses

E - Exponents

M - Multiplication

D - Division

A - Addition

S - Subtraction

(4)²-3(4)+8

16 - 3(4) + 8

16 - 12 + 8

4 + 8

  12

Hope this helped.

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3 years ago
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victus00 [196]

Answer:

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Solve the system by substitution 5x+3y=8 3x+y=8
Yakvenalex [24]
3x+y=8
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4 0
4 years ago
What is a rational number that is between 5.2 and 5.5
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Hope that helps!
4 0
3 years ago
Here is a recipe for hot chocolate. The recipe makes 4 cups. You and 7 friends are going to enjoy some hot chocolate outside, so
prisoha [69]

Answer:

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Step-by-step explanation:

The recipe for hot chocolate which makes 4 cups, I have 7 friends and if I include myself we will need to make 8 cups of hot chocolate so the recipe for hot chocolate will need to double all the ingredients mentioned in the recipe to make 8 cups of hot chocolate. If 8 cups of hot chocolate is made me and my friends will be able to enjoy hot chocolate in a little cold weather with social distance.

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3 years ago
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