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4 years ago

How do I get the brainliest answer?

2 answers:

6 0

After a certain amount of time whoever asked the question gets to pick who gave them the brainliest answer, so its up to whoever asked the question whether they think you deserve it!

Rus_ich [418]4 years ago

4 0

Answer:

Basically, the person who asked the question gets to pick which answer is the brainliest.

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Calculus: Help ASAP

wariber [46]

$\bf \displaystyle \int~\cfrac{sec^2(x)}{\sqrt{1+tan(x)}}\cdot dx\\\\
-------------------------------\\\\
u=1+tan(x)\implies \cfrac{du}{dx}=sec^2(x)\implies \cfrac{du}{sec^2(x)}=dx\\\\
-------------------------------\\\\
\displaystyle \int~\cfrac{\underline{sec^2(x)}}{\sqrt{u}}\cdot\cfrac{du}{\underline{sec^2(x)}}\implies \int~\cfrac{1}{\sqrt{u}}\cdot du\implies \int~u^{-\frac{1}{2}}\cdot du
\\\\\\
2u^{\frac{1}{2}}\implies 2\sqrt{1+tan(x)}+C$

6 0

3 years ago

Read 2 more answers

[7 points] A sample of 78 anchor bolts was randomly selected and the shear strength (in kips) of each was measured, resulting in

vovangra [49]

Answer:

Step-by-step explanation:

We want to determine a 98% confidence interval to estimate the true mean shear strength of anchor bolts.

Number of sample, n = 78

Mean, u = 4.25

Standard deviation, s = 1.3

For a confidence level of 98%, the corresponding z value is 2.33.

We will apply the formula

Confidence interval

= mean ± z × standard deviation/√n

It becomes

4.25 ± 2.33 × 1.3/√78

= 4.25 ± 2.33 × 0.147

= 4.25 ± 0.34

The lower end of the confidence interval is 4.25 - 0.34 = 3.91

The upper end of the confidence interval is 4.25 + 0.34 = 4.59

b) the confidence interval would still be valid because the number of samples is large(> 30)

6 0

4 years ago

The average weight of a particular box of crackers is 37.0 ounces with a standard deviation of 0.5 ounce. The weights of the box

Karolina [17]

A____________________

7 0

3 years ago

In △BCD, BP=15 cm. What the length of BX¯¯¯¯¯¯ ? __cm

svlad2 [7]

I believe the answer is 10 cm<span />

3 0

3 years ago

A line with slope 2 passes through the point (2, -4). Find the coordinates of another point on the line.

Brilliant_brown [7]

Answer:

(3, -2)

Step-by-step explanation:

We can view slope as: $\frac{rise}{run}$ (rise / run)

"rise" is the change in y from one point to another

"run" is the difference in x from one point to another

So, if the slope of a line is 2, it rises 2 every time it runs 1 (2 = 2/1)

So, we can find another point on the line by adding 2 to the y-value, and adding 1 to the x-value.

(x, y)

(2, -4)

+ 1 + 2

(3, -2)

So, another point on this graph is (3, -2)

8 0

2 years ago