What is true of the function g(x) = –2x2 + 5?

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

The variable x represents the independent variable.

Answer 2

Answer: The function has the following properties:
The graph is a parabola curving downwards.
The vertex is at (0,5).
The axis of symmetry is the y-axis.
The domain is all read number.
The range is all numbers less than or equal to 5.

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5. One canned juice drink is 15% orange juice; another is 10% orange juice. How many liters of each should be mixed together in order to get 5L that is 12% orange juice? How many liters of the 15% orange juice should be in the mixture?

Answers

x: liters of 15% orange juice
y: liters of 10% orange juice

x+y=5L

y=5L - x

x liters of 15% orange juice plus y liters of 10% orange juice makes 5 liters of 12% orange juice in equation form:

0.15x+0.10y = 0.12(5L)

0.15x+0.10(5L-x)=0.12(5L)

0.15x+0.5-0.10x=0.6

0.05x=0.1L

x=2L

so y = 3L

so you need 2 liters of 15% orange juice and 3 liters of 10% orange juice

Find the sum of 3b/b+2 and 12/b+2 and express it in simplest form

Answers

$(3b)/(b+2)+(12)/(b+2)=(3b+12)/(b+2)\n\n\n(3b+12)/(b+2)=(3b+6+6)/(b+2)=(3b+6)/(b+2)+(6)/(b+2)=(3(b+2))/(b+2)+(6)/(b+2)=3+(6)/(b+2)$

Adam wants to buy a video game system that costs $100.00. He has $28.35 in one piggy bank and $31.90 in another piggy bank. How much more money does Adam need before he can buy the video game system? How can estimation be used to make sure the answer is reasonable?

A.
Answer: Adam needs $160.25 more.
Estimation: $28 + $32 = $60.
$100 + $60 = $160.
Adam needs about $160 more to buy his video game system.

B.
Answer: Adam needs $39.75 more.
Estimation: $28 + $32 = $60.
$100 – $60 = $40.
Adam needs about $40 more to buy his video game system.

C.
Answer: Adam needs $30.13 more.
Estimation: $28 + $32 = $60.
$60 ÷ 2 = $30.
Adam needs about $30 more to buy his video game system.

Answers

Since we want to know how much more he needs out of the total, we must do subtraction. Since the only subtraction one is C, The answer is C.

The graph below represents which system of inequalities?graph of two infinite lines that intersect at a point. One line is dashed and goes through the points 0, 2, negative 2, 0 and is shaded in below the line. The other line is dashed, and goes through the points 0, 6, 3, 0 and is shaded in below the line.

A y < −2x + 6
y < x + 2

B y ≤ −2x + 6
y ≤ x + 2

C y < 2 over 3x − 2
y > 2x + 2

D None of the above

Answers

The graph below represents y < 2 over 3x − 2 | y > 2x + 2 system of inequalities. The answer is letter C. The rest of the choices do not answer teh qustion above

Are 8/12 equivalent to 4/6 explain why

Answers

Yes because when the lower form of 8/12 is 4/6. Try to divide 8/12 by 2

Yes. times 4 by 2, and 6 by 2. It equals 8/12'ths. Alternatively, you can do 8/12 divided by two, and you'll got 4/6, or divide again by two, to get 2/3

Can you help me with any of these please (not lazy don't understand )

Answers

I believe the first one is h becuase there is a y on the left side.
for the second one just find the slope for the points and see which one doesn't fit in the groups (I would use tables)
and for the last one try writing equations for them.

but idk tho that's just what I would do.

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