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pickupchik [31]
3 years ago
9

What are the solutions of this equation 16-2x^2=-64

Mathematics
1 answer:
xenn [34]3 years ago
5 0

Answer:

x = ± 2\sqrt{10}

Step-by-step explanation:

Given

16 - 2x² = - 64 ( subtract 16 from both sides )

- 2x² = - 80 ( divide both sides by - 2 )

x² = 40 ( take the square root of both sides )

x = ± \sqrt{40} = ± \sqrt{4(10)} = ± 2\sqrt{10}

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HELP ASAP!! (picture above)
lilavasa [31]
To calculate minimum value, do -b/2a to get the x-value, and plug it in to get the y-value: 

-6/8 = -3/4

4 *  (-\frac{3}{4} )^{2} + 6 (-\frac{3}{4} ) - 18 =  \frac{9}{4} -  \frac{9}{2} - 18 =  - \frac{81}{4}

So the minimum value of g(x) is -81/4

This shows that g(x) has a lesser minimum value than f(x)


5 0
3 years ago
How many solutions are there to the equation below?
Anton [14]

Answer:

B. Infinitely Many

Step-by-step explanation:

Step 1: Distribute

5x + 48 + 7x = 12x + 48

Step 2: Combine like terms

12x + 148 = 12x + 48

If the 2 lines are the same, which they are, they are the same lines. That means there are an infinite amount of solutions. If they had the same slope but different y-intercepts, there would be no solutions because the lines are parallel. Any other pair of equations would have 1 solution.

8 0
3 years ago
Read 2 more answers
Help me fill this out! please be honest and help me , i'll mark you brainlesst
faust18 [17]

Answer/Step-by-step explanation:

1. The vertex of am angle is formed when two lines join together. The vertex of the angle shown in the diagram is located outside the circle.(<R)

2. The lines that created <FRT (lines FR & TR) are secants

3. The major arc = FT = 140°

minor arc = QS = 44°

4. Formula of Exterior angles of a circle = (major arc - minor arc)/2

x = (140 - 44)/2

x = 96/2

x = 48°

5 0
3 years ago
Which equation will have the same solution as 3 – 5(2x + 1) = 3(3 + x)?A.
Nonamiya [84]
The answer is C
expand the equation then you will get 3-10x-5=9+3x, simplify you get 13x=-11
4 0
3 years ago
Please help ASAP thank you
horrorfan [7]

Step-by-step explanation:

5/8-7/8=2/8 so that is the height

the width is 1/2

and the length is 3/8

you have too multiply 1/2 and 3/8 which is 3/16.

hope this is correct and helps u out

5 0
3 years ago
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