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Paul [167]
3 years ago
8

I don’t know how to do this problem in math

Mathematics
1 answer:
Elodia [21]3 years ago
5 0

Answer:

142

Step-by-step explanation:

Basically, in f (x) whatever x is will go in the parenthesis.

So,

-(-9)^{2}-7(-9)-2

The two negatives that are next together will turn positive.

9^{2}+63-2

When multiplying two negative numbers turn positive.

9 x 9= 81

81+63-2

144-2=142

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Answer: 1,999,000

Step-by-step explanation:

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Why can't Irrational numbers never be precisely represented in decimal form.
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3 years ago
The ages of three siblings combined is 27. The oldest is twice the age of the youngest. The middle child is 3 years older than t
kondaur [170]

Answer:

the oldest sibling is 12 years old.

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Step-by-step explanation:

Let the age of the youngest child be x

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7 0
3 years ago
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Look at the pic below and please help.
marshall27 [118]

Answer:

1) Equation's:

  • y = 500 + 15x
  • y = 350 + 18x

2) Number of guest and the charge:

  • Cost is same for both at 50 meals. The cost is $1250.

<u>Part 1</u>

Turn sentences into equation's (Let 'y' be total cost and x per meal) :

(i) charges $500 and $15 per meal

  • y = 500 + 15x

(ii) charges $350 and $18 per meal

  • y = 350 + 18x

<u>Part 2</u>

            y  =  y

500 + 15x = 350 + 18x

18x - 15x = 500 - 350

3x = 150

x = 150/3

x = 50

Charge at guest's 50 meal:

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3 years ago
192 is what percent of 60
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Answer:

320%

Step-by-step explanation:

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