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2 years ago

Helppppppppppppppppppppp make it correct

Mathematics

2 answers:

MAVERICK [17]2 years ago

4 0

Answer:

Step-by-step explanation:

it has a vertex at (2,11)

f(2) = 11

how to find the vertex;

function equation is f(x) = ax^2 + bx + c

we can find x by :-b/2a, -8/-4 = 2

and by putting the x value we get the y

f(2) = 11

mash [69]2 years ago

3 0

Answer:

Step-by-step explanation:

x= -b/2a

x= -8/2(-2)

x=-4/-2

x=2

f(2) = -2(2) +8(2)+ 3

f(2) = -8 +16 + 3

f(2) = 11

Maximum value is 11

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Answer:

Step-by-step explanation:

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2 years ago

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Helen [10]

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Step-by-step explanation:

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3 years ago

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Answer:

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3 0

2 years ago

You deposit the same $10,000 into a bank account at 4% annual interest. How long will it take for the $10,000 to compound to $30

Readme [11.4K]

Answer:

time = 28 years

Step-by-step explanation:

Given,

principal amount = $10,000

rate = 4%

total amount = $30,000

According to compound interest formula

$A\ =\ P(1+r)^t$

where, A = total amount

P = principal amount

r = rate

t = time in years

so, from the question we can write,

$30000\ =\ 10000(1+0.04)^t$

$=>\ \dfrac{30000}{10000}\ =\ (1+0.04)^t$

$=>\ 3\ =\ (1.04)^t$

by taking log on both sides, we will get

=> log3 = t.log(1.04)

$=>\ t\ =\ \dfrac{log3}{log1.04}$

=> t = 28.01

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3 years ago

There are 420 students. 63 students were out sick. What percent of the student population is ill?

emmainna [20.7K]

To find the percentage,here's what we can do:
$\frac{student \: out \: sick}{original \: population} \times 100\%$

The percentage would then be:
=63/420×100%
=3/20×100%
=0.15×100%
=15%

Therefore the answer is 15%.

Hope it helps!

3 0

2 years ago

Read 2 more answers