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Ronch [10]
3 years ago
9

Please Help! It is Pre-Calc and I need to know the answer!

Mathematics
1 answer:
Kisachek [45]3 years ago
3 0

That's again the derivative at 2, so the answer is A. 4.  Hard way:

f(x)=x²

f(2)=4

f(2+h) = (2+h)² = 4 + 4h + h²

f(2+h) - f(2) = 4h + h²

(f(2+h)-f(2))/h = 4 + h

Limit is 4.

Answer:  A.  4

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A 64-ounce bottle of orange juice has 48 ounces of water . What percent of bottle of orange juice is water
tatyana61 [14]
48 ounces is water, out of 64 ounces of orange juice. 48 out of 64 is 48/64=0.75. That is 0.75*100=75 percent.
7 0
3 years ago
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Aline has a rise of 6 and a slope of<br> 1/20 What is the run
Softa [21]

。☆✼★ ━━━━━━━━━━━━━━  ☾

The equation is:

slope = rise/run

Rearrange for run:

run = rise/slope

Substitute values in:

run = 6/(1/20)

Solve:

run = 120

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3 0
3 years ago
Divide 20x^2y^2+4xy^2-8y^2/4x^2y
Ksivusya [100]
I hope this helps you



[20x^2/4x^2y]+[4xy^2/4x^2y]-[8y^2/4x^2y]


[5/y]+[y]-[4y/x^2]
7 0
3 years ago
What is 1/2 X (6 X 4)+3 + 2 Please show your work
exis [7]

Answer:

<h2>17</h2>

Step-by-step explanation:

Use PEMDAS:

P Parentheses first

E Exponents (ie Powers and Square Roots, etc.)

MD Multiplication and Division (left-to-right)

AS Addition and Subtraction (left-to-right)

\dfrac{1}{2}\times\underbrace{(6\times4)}_{1}+3+2\\\\=\underbrace{\dfrac{1}{2}\times24}_{2}+3+2\\\\=12+3+2=17

4 0
3 years ago
Researchers wanted to see which species of lizard (A, B, or C) is most likely to survive a bacterial infection. So they infected
Slav-nsk [51]

Answer:

A) attached below

B) 0.61

C) 0.47

Step-by-step explanation:

Given data:

Total number of lizards infected = 38

Of the 15 species B lizards 40% survived

For specie C one more survived than died

Out of the 24 lizards that died 1/3 were species A

<u>A) contingency table </u>

attached below

<u>B) Determine the proportion of these lizards in this study that were either specie A or Specie B </u>

P ( A or B ) = ( 8 + 15 ) / 38 = 0.605 ≈ 0.61

<u>C) determine the probability that specie C lizard did not study </u>

P ( not surviving  | C ) = 7 / 15 = 0.466 ≈ 0.47

7 0
2 years ago
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