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solmaris [256]
3 years ago
9

F(x)=2x^3-3x^2+7 f(-1)=

Mathematics
1 answer:
kogti [31]3 years ago
6 0

Answer:

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

Step-by-step explanation:

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Use the figure to the right to find the missing lengths of the triangle.
pychu [463]

To find AB(x) and BC(y), you can do(there are multiple ways you can do this):

tan A = \frac{y}{7}

tan 60° = \frac{y}{7} or (tan 60°) · 7 = y

tan 60° = \frac{\frac{\sqrt{3} }{2} }{ \frac{1}{2} } = \sqrt{3}

√3 · 7 = y

7√3 cm = y


sin B = \frac{7}{x}

sin 30° = \frac{7}{x} or x= \frac{7}{sin 30}

sin 30° = \frac{\frac{1}{2} }{1} = \frac{1}{2}

x = \frac{7}{\frac{1}{2} } = 14

x = 14 cm


AB = 14cm

BC = 7√3 cm

8 0
3 years ago
Parallel lines never intersect, therefore, there is one solution
anyanavicka [17]

Answer:

Step-by-step explanation:

If parallel lines don't intersect, then there can't be any solutions. An intersection represents a solution.

If this is a true false question, the statement is false.

6 0
3 years ago
WILL GIVE BRAINLST <br><br> hAVE AN AMAZING DAY
Zolol [24]

Answer:

1 A= 3 cm

2 C= 37/99

Step-by-step explanation:

Volume is l * w * h

or s³ for cubes

∛27= 3

3/7= 0.43

3/70= 0.04

37/99= 0.3737373737 etc.

37/100= 0.37

8 0
2 years ago
Balance the equation. show all 6 STEPS. 12+v=30
aalyn [17]
I think the answer is 18.
Equation/ steps:

12+v=30
30-12= 18
V=18

Hope this helps!
7 0
3 years ago
1.Kori spent $46.20 on 12 gallons of gasoline. What was the price per gallon?
spin [16.1K]

1: B $3.85

2: C The rabbit; 14 miles per hour

3: C 2 1/2 miles

1. Reason: To find the price per gallon, all you need to do is divide 46.20 by 12 to get 3.85

2. Reason: To find which animal is faster all you have to do is subtract the greater number, which is the rabbit that travels 35 miles per hour from the smaller number which is the fox that travels 21 miles.

Subtract: 35-21= 14. So the rabbit is faster by 14 miles.

3. Reason: If Randy walks 1/2 mile in every 1/5 hour, to find the much he will walk in a hour you could count up:

1/2 mile = 1/5 hour

1 mile = 2/5 hour

1 1/2 mile = 3/5 hour

2 mile = 4/5 hour

2 1/2 mile = 1 hour

So, Randy will travel 2 1/2 miles in a hour.

8 0
3 years ago
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