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2 years ago

5. A function is given below. f(x) = 3x2 - x + 6 What is f(2)? 2

Mathematics

2 answers:

goldenfox [79]2 years ago

7 0

Answer: 10

Step-by-step explanation:

f(x)= 3 (2) - x + 6

f(x)= 6 - 2 + 6

f(x)= 4 + 6

f(x) = 10

shtirl [24]2 years ago

3 0

Hey someone already answered your question but I need to answer 1 so I can ask another 1 but your answer is 10

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A woman saw oranges and mangos ad the market. She bought some oranges at 35 cents each and some mangoes at $1.00. if she bought

marysya [2.9K]

Answer: 20 oranges and 5 mangoes

Step-by-step explanation:

Define the following:

x = number of oranges

y = number of mangoes

Make the following system of equations:

x + y = 25

0.35x + 1.00y = 12.00

Solve for x:

y = 25 - x

⇒ 0.35x + 1.00(25 - x) = 12.00

⇒ 0.35x + 25 - x = 12.00

⇒ -0.65x = -13.00

⇒ x = 20

Solve for y:

20 + y = 25

y = 5

∴ 20 oranges and 5 mangoes were purchased.

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1 year ago

84 ÷ (17 × 3 - 23) × 4

Zielflug [23.3K]

Answer: 12

Step-by-step explanation:

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2 years ago

Find the zeros of y = x + 6x- 4 by completing the square.

dsp73

Answer:

$\large\boxed{x=-3\pm\sqrt{13}}$

Step-by-step explanation:

$(a+b)^2=a^2+2ab+b^2\qquad(*)\\\\\\x^2+6x-4=0\qquad\text{add 4 to both sides}\\\\x^2+2(x)(3)=4\qquad\text{add}\ 3^2=9\ \text{to both sides}\\\\\underbrace{x^2+2(x)(3)+3^2}_{(*)}=4+9\\\\(x+3)^2=13\Rightarrow x+3=\pm\sqrt{13}\qquad\text{subtract 3 from both sides}\\\\x=-3\pm\sqrt{13}$

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2 years ago

Find three consecutive odd integers such that the sum of the least integer and the middle integer is 51 more than the greatest i

Shkiper50 [21]

Answer:

square root of 25 <square root of 51 <square root of 81

5 <7.14 <9

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2 years ago

What does this graph tell you about the price of cinnamon

LenaWriter [7]

I think the answer is 2 because the unit price = price/total amount or weight

Price = 0.75 or 75 cents
Total Amount or weight = 5.25 pounds

Hope this helped☺☺

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2 years ago

Read 2 more answers