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Mathematics

2 answers:

Lubov Fominskaja [6]3 years ago

8 0

Answer:

magnitude is always postive

so, it will be +2.5 , so C

Vanyuwa [196]3 years ago

4 0

Answer:

I think the answer is the third choice.

Step-by-step explanation:

The answer makes the most sense to my sense of mathematics.

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Calculus question plzzzz

miss Akunina [59]

Answer:

Step-by-step explanation:

$f(x)=\frac{1}{\sqrt{x} }\\f'(x)=-\frac{1}{2} x^{-\frac{3}{2}}\\\\f'(4)=-\frac{1}{2} 4^{-\frac{3}{2} }=-\frac{1}{2} \frac{1}{4^\frac{3}{2} } \\=-\frac{1}{2} *\frac{1}{8}=-\frac{1}{16} \\when x=4\\y=f(x)=\frac{1}{\sqrt{4} } =\frac{1}{2} \\\\eq.~ of ~tangent ~line~is\\y=-\frac{1}{2} -\frac{1}{16} (x-4)$

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4 years ago

A bakery sold 246 vanilla cupcakes in a day, which was 82% of the total number of cupcakes sold that day. How many total cupcake

IRINA_888 [86]

The total number of cupcakes were 300.

5 0

3 years ago

Write each decimal as a fraction in lowest terms <br><br> 0.255

Vesnalui [34]

Answer:

51/200

Step-by-step explanation:

To write a decimal as a fraction, you have to make the decimal the numerator, and put a multiple of ten with that number of zeroes in the denominator:

0.255 = 255/1000

Then we simplify

51/200

6 0

1 year ago

When Jose took the test over, he increased his score by 15 percentage points. Jose raised his score to an 83% on the test. Which

JulsSmile [24]

Increased by 15
past score was x
increased by 15 means he raised to 15+x
it was raised to 83%

therefor
x+15=83

first option is right (and first test was 68%)

5 0

3 years ago

Read 2 more answers

What are the solution(s) to the quadratic equation 50 – x2 = 0?

Dmitrij [34]

Answer:

x = ± $5\sqrt{2}$