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3 years ago

10

What percentage of 1day is 4 hours

1 answer:

hammer [34]3 years ago

3 0

Answer: 18.75

Step-by-step explanation:There are 24 hours in a day. 4 hours 30 minutes is 4.50 hours. Which is equal to 18.75%.

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Jordan writes 3(4x – 8) = 12x – 8

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Hi! What’s -8 times 3?

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3 years ago

I guess I'm lacking in differential equations. I couldn't solve this question. Can you help me?

Sonja [21]

Answer:

See Explanation.

General Formulas and Concepts:

<u>Pre-Algebra</u>

Equality Properties

Reciprocals

<u>Algebra II</u>

Log/Ln Property: $ln(\frac{a}{b} ) = ln(a) - ln(b)$

<u>Calculus</u>

Derivatives

Basic Power Rule:

f(x) = cxⁿ
f’(x) = c·nxⁿ⁻¹

Chain Rule: $\frac{d}{dx}[f(g(x))] =f'(g(x)) \cdot g'(x)$

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Step-by-step explanation:

<u>Step 1: Define</u>

$ln(\frac{2x-1}{x-1} )=t$

<u>Step 2: Differentiate</u>

Rewrite: $t = ln(\frac{2x-1}{x-1})$
Rewrite [Ln Properties]: $t = ln(2x-1) - ln(x - 1)$
Differentiate [Ln/Chain Rule/Basic Power Rule]: $\frac{dt}{dx} = \frac{1}{2x-1} \cdot 2 - \frac{1}{x-1} \cdot 1$
Simplify: $\frac{dt}{dx} = \frac{2}{2x-1} - \frac{1}{x-1}$
Rewrite: $\frac{dt}{dx} = \frac{2(x-1)}{(2x-1)(x-1)} - \frac{2x-1}{(2x-1)(x-1)}$
Combine: $\frac{dt}{dx} = \frac{-1}{(2x-1)(x-1)}$
Reciprocate: $\frac{dx}{dt} = -(2x-1)(x-1)$
Distribute: $\frac{dx}{dt} = (1-2x)(x-1)$

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3 years ago

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Which coordinate pair fits the set of coordinates {(0, 4), (-2, 1), (-4, -2)} defined by a linear function?

kati45 [8]

<span>D) (-6, -5) is the answer. ope it helps!</span>

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3 years ago

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This number is in scientific notation. 2. 4 × 10-4 Convert the number into standard notation. What is the value? 2. 4 × 10-4 =.

Dimas [21]

2.4x10^-4 = 0.00024

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2 years ago

Shanell answered al of her answer on her science test she had 90% correct there were 40 questions how many did she get incorrect

Snowcat [4.5K]

Answer:

4

Step-by-step explanation:

If she got a 90% on her test, and the test was 40 questions long, we need to do a bit of division and multiplication.

We have to divide 40 by 100, as percentages are out of 100.

So now we have 0.4.

Now we multiply this by 90.

36. She got 36 answers correct out of 40, which means she got four wrong.

6 0

3 years ago