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velikii [3]
2 years ago
7

F(x) = 2x^2 Find f(-6)

Mathematics
1 answer:
katrin2010 [14]2 years ago
7 0

Answer:

f(-6) = 72

Step-by-step explanation:

Input -6 for x :

2(-6)²

Complete with P.E.M.D.A.S :

2(36)

then :

72

so therefore :

f(-6) = 72

or

f of x equals 72

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Step-by-step explanation:

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6y = 42 so

y = 7

Same goes for OT and OV:

x + 5 = 23 so

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How do you write x+y=9 in y=mx+b?
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Y=-x+9 is the correct answer
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2n +5)=2<br> Help me please
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Suppose you have ordered one medium onion ring and one 16oz chocolate shake from Burger King. The onion rings have 19 grams of f
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23 + 13x ≤ 81

Part B:

23 + 13x ≤ 81

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5 0
3 years ago
Solve the system by substitution. Check your solution. <br> a-1.2b=-3 <br> 0.2b+0.6a=12
velikii [3]
A - 1.2b = - 3         ⇒ eq. 1
0.2b + 0.6a = 12   ⇒ eq. 2

a - 1.2b = - 3  
a = 1.2b - 3           ⇒ eq. 3

Substitute eq. 3 to eq. 2
0.2b + 0.6(1.2b - 3) = 12
0.2b + .72b - 1.8 = 12
Combine like terms
0.92b = 12 + 1.8
0.92b = 13.8   ⇒ divide both sides by 0.92 to get the value of b
<span>b = 15

</span>Substitute the value of b to eq. 3
a = 1.2b - 3
a = 1.2(15) - 3 
<span>a = 15

</span>to check: substitute the values of a and b to:
eq. 1
a - 1.2b = - 3 
15 - (1.2)(15) = -3 
15 - 18 = - 3 
- 3 = -3    ⇒ correct!

eq. 2 
0.2b + 0.6a = 12 
(0.2)(15) + (0.6)(15) = 12
3 + 9 = 12
12 = 12   ⇒ correct!
7 0
3 years ago
Read 2 more answers
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