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hodyreva [135]
3 years ago
14

A.Give the function,find each value 1.Let k(x)=2x²-4x+6, a.find k(-2), and b.find k(2)​

Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
3 0
It is quite simple answer is this

1. 5
2. -6+4
3.13
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Stephanie is 62 inches tall. Her brother is t inches shorter than she is.
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Answer: 62 - T

Step-by-step explanation:

I think it is 62 - T because Stephanie is 62 inches and it says that her brother is shorter which I believe it means that you have to subtract.

7 0
2 years ago
Hope someone can help me with this
Norma-Jean [14]
Hi,

To find the volume of cylinder this formula is required.

v = \pi {r}^{2} h

To get radius you need to divide diameter with 2 like this.

80 \div 2 = 40

Now just put your values into formula.

v = \pi {40}^{2}  \times 130 \\ v =653451.27

You will need 653451.27 cubic centimetres of concrete.

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r3t40
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2 years ago
A survey revealed that 56% of the students at North Valley high school are involved with in a sports team. The survey also showe
oksano4ka [1.4K]

Answer:

The probability that a student who is involved in a sports team also participated in the prom dance = 0.1344

Step-by-step explanation:

56% of the students are involved in a sport team

56% = 0.56

According to the question, it is stated that 24% of the students at the school that are involved in a sports team also participated in the prom dance.

24% = 0.24

This means that we are going to find 24% of the original 56%, since 24% of them also participated in the prom dance.

The probability that a student who is involved in a sports team also participated in the prom dance = 0.24 * 0.56

The probability that a student who is involved in a sports team also participated in the prom dance = 0.1344

5 0
3 years ago
Which graph shows a function with a zero of –5?
Vedmedyk [2.9K]

Answer:

Look for the y-intercept where the graph crosses the y-axis. Look for the x-intercept where the graph crosses the x-axis. Look for the zeros of the linear function where the y-value is zero.

Step-by-step explanation:

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(20 + 60) + (3 + 7) + (0.4 + 0.3) + (0.05 + 0.01)
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3 years ago
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