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3 years ago

X2 − 2x − 2 into the form a(x − h)2 + k.

Mathematics

1 answer:

Sedbober [7]3 years ago

3 0

Answer:

x² - 2x - 2

By Completing the Square....

x² - 2x + 1² - 2 - 1²

(x - 1)² - 3 .....

Hope it helps.

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The football team has a total of 20 jerseys. There are 4 medium sized jerseys. What percent of the jerseys are medium-sized?

Reil [10]

$\frac{4}{20} = \frac{1}{5} = 20$
20% are medium-sized

6 0

4 years ago

Read 2 more answers

A fluid moves through a tube of length 1 meter and radius r=0.006±0.00025 meters under a pressure p=4⋅105±2000 pascals, at a rat

iris [78.8K]

Answer:

Maximum error for viscosity is 17.14%

Step-by-step explanation:

We know that everything is changing with respect to the time, "r" is changing with respect to the time, and also "p" just "v" will not change with the time according to the information given, so we can find the implicit derivative with respect to the time, and since

$n = (\frac{\pi}{8}) (\frac{pr^4}{v})\\$

The implicit derivative with respect to the time would be

$\frac{dn}{dt} = \frac{\pi}{8} ( \frac{r^4}{v} \frac{dp}{dt} + \frac{4pr^3}{v}\frac{dr}{dt} )$

If we multiply everything by dt we get

$dn = \frac{\pi}{8} ( \frac{r^4}{v} dp + \frac{4pr^3}{v} dr})$

Remember that the error is given by $\frac{dn}{n}$ therefore doing some algebra we get that

$\frac{dn}{n} = 4 \frac{dr}{r} + \frac{dp}{p}$

Since, r = 0.006 , dr = 0.00025 , p = 4*105 , dp = 2000 we get that

$\frac{dn}{n} = 0.1714$

Which means that the maximum error for viscosity is 17.14%.

5 0

3 years ago

I'll give brainliest

notka56 [123]

Answer:

2:1 thats how i learnd it in highschool

6 0

4 years ago

If sally had 2 apples and gave away 1 , how many does she have left ?

Schach [20]

One apple because 2-1=1

3 0

3 years ago

Use 3.14 for pi to estimate the area of a circle. The diameter is given. Round your answer to the nearest hundredth if necessary

joja [24]

The formula for the area of a circle is A=πr². First, input 3.14 in place of pi, A=(3.14)r<span>². Then divide the diameter by 2 to get the radius and plug that in for r, A=(3.14)(12.2)</span>². Now solve, <span>A=467.3576. Finally, round your answer to the nearest hundredth, A</span>≈467.36

4 0

4 years ago