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Alex73 [517]
2 years ago
14

Help if you can Please no links or false answers

Mathematics
2 answers:
Svetlanka [38]2 years ago
7 0

Answer:

1st option

Step-by-step explanation:

given a quadratic function in standard form

f(x) = ax² + bx + c ( a ≠ 0 ) , then

• if a > 0 , the function opens up and has a minimum

• if a < 0 , the function opens down and has a maximum

here a = \frac{1}{2} > 0

then f(x) opens up and has a minimum

BARSIC [14]2 years ago
7 0

Answer:

Option A, open up and have a minimum

Step-by-step explanation:

<u>Step 1:  Determine if it opens up or down</u>

Since the value of a is 1/2 which means that it's positive which also means that it opens up.  When a parabola opens up, that means that it has a minimum.  

The picture attached to this answer shows an example of how a graph would look when using this equation.  If a was -1/2 then the parabola would be facing down and would have a maximum.

Answer:  Option A, open up and have a minimum

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Solve the inequality 5(2h+8)&lt;60
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Answer:

<h2>h < 2</h2>

Step-by-step explanation:

5(2h+8) < 60

Expand the terms in the bracket

We have

10h + 40 < 60

Group like terms

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10h < 20

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Hope this helps you

7 0
3 years ago
In a Gallup poll of randomly selected adults, 66% said that they worry about identity theft. For a group of 1013 adults, the mea
Kazeer [188]

Answer:

Mean = 344

Step-by-step explanation:

Given

Population =  1013

Let p represents the proportion of those who worry about identity theft;

p = 66\%

Required

Mean of those who do not worry about identity theft

First, the proportion of those who do not worry, has to be calculated;

Represent this with q

In probability;

p + q = 1

Make q the subject of formula

q = 1 - p

Substitute p = 66\%

q = 1 - 66\%

Convert percentage to fraction

q = 1 - 0.66

q = 0.34

Now, the mean can be calculated using:

Mean = nq

Where n represents the population

Mean = 1013 * 0.34

Mean = 344.42

Mean = 344 (Approximated)

3 0
3 years ago
Given f(x)=2/5(6-x)^2 what is the value of f(6)?​
bulgar [2K]

Answer:

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Step-by-step explanation:

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f(6) = 2/5[6 - (6)]²

f(6) = 2/5(0)²

f(6) = 0

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