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MissTica
3 years ago
12

Please help me or tell me the answer

Mathematics
2 answers:
-Dominant- [34]3 years ago
6 0
It's F. If you want me to explain or have any follow up questions feel free to ask.
zepelin [54]3 years ago
4 0
The answer is F 8 \ 100
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How to solve it and why
RideAnS [48]
6.

4x^2 + 4 = 0

Divide both sides by 4

x^2 + 1 = 0

Use the quadratic formula since this cannot be factored.

x = (-b +- sqrt(b^2 - 4ac))/(2a)

x = +- sqrt(-4(1)(1))/2

x = +- sqrt(-4)/2

x = +- 2i/2

x = +- i

x = i or x = -i

Quicker solution:

If you have x^2 = number, then

x = +- sqrt(number)

Once you get to

x^2 + 1 = 0

Subtract 1 from both sides

x^2 = -1

Apply the quick method

x = +- sqrt(-1)

x = +- i

8.

2x^2 + 50 = 0

Divide both sides by 2

x^2 + 25 = 0

Subtract 25 from both sides

x^2 = -25

Apply quick method

x = +- sqrt(25)

x = +- 5i

x = 5i or x = -5i
3 0
2 years ago
Draw a circle shade one sixth of it what percentage of the circle is shaded
White raven [17]

Answer:

16.6%

Step-by-step explanation:


6 0
2 years ago
What is the GCF for 84 and 90
vivado [14]

Answer:

The GCF for 84 and 90 is 6.

Step-by-step explanation:

The factors of 84 are: 1, 2, 3, 4, <u>6</u>, 7, 12, 14, 21, 28, 42, 84

The factors of 90 are: 1, 2, 3, 5, <u>6</u>, 9, 10, 15, 18, 30, 45, 90

Then the greatest common factor is 6.

6 0
2 years ago
Read 2 more answers
Henri bought a swim suit at a cost of $8. Which statements are true regarding the cost of the suit?
Charra [1.4K]

Answer:

What are the statements?

Step-by-step explanation:

4 0
3 years ago
A basketball player is 7 ft tall. He shoots the ball into the basket and the path of the
emmainna [20.7K]

Answer:

52

Step-by-step explanation:

Given the the equation h(t) =-15t^2+ 30t+7 where t is the time in second

So to find the ball's maximum height we can apply the vertex formula:

t= \frac{-b}{2a}  

to find the "x" value of the vertex, then plug that value into the original equation as a substitute for "x".

Standard quadratic form is: ax^2+bx+c

=> a=15, b=30 in our given equation

<=> t = \frac{-30}{2*-15} =1

When t =-1 we have h(t) = 15*1^2+ 30*1+7 = 52

So the ball's maximum height is:  52

Hope it will find you well.

6 0
3 years ago
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