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natima [27]
2 years ago
15

The function f is defined by f(x)=x²-7. What is the value of f(3) ? A -16 B -2 C 2 D 16​

Mathematics
2 answers:
3241004551 [841]2 years ago
6 0
Yes the correct answer should be C hope this helps
xz_007 [3.2K]2 years ago
3 0

Answer:

Option C is the answer

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joe and james are selling pies for a school fundraiser. Customers can buy blueberry pies and blackberry pies. Joe sold 5 blueber
dimulka [17.4K]
This is a system of equations problem.

Blueberry = X, blackberry = Y

Joe:
5x + 10y = 135

James:
x + 9y = 104

Let’s isolate x from James’ equation.
x = 104 - 9y

Now substitute that into the first equation.
5(104 - 9y) + 10y = 135

520 - 45y + 10y = 135

-35y = -385

y = -385/-35. The negatives cancel out, leaving us with $11 for blackberries.

Now we can substitute that value into James’s equation.

x + 9(11) = 104

x = 104 - 99

x = $5

Final answer: Blueberry pies cost $5, blackberry pies cost $11.
3 0
2 years ago
What is the greatest common divisor of 33489, 3948, and 3949
storchak [24]

33489 = 32×612

3948 = 22×3×7×47

3949 = 11×359

GCD = 1

33489 / 1 = 33489

3948 / 1 = 3948

3949 / 1 = 3949

3 0
2 years ago
Which expression is<br> equivalent to the following complex fraction?
tino4ka555 [31]

Answer:

(y - x)/(y + x)

Step-by-step explanation:

(1/x - 1/y)/(1/x + 1/y) =

= (1/x - 1/y)/(1/x + 1/y) × (xy)/(xy)

= (y - x)/(y + x)

8 0
1 year ago
I need to know the answer
Firdavs [7]
It would be 115



180-65 = 115 and 180 comes from the straight line which is half of 360
8 0
3 years ago
Read 2 more answers
Is 1.65 greather than 16.5
Bas_tet [7]

Answer:

No

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
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