4 years ago

Which of the following is the closest approximation to 30

Mathematics

1 answer:

Monica [59]4 years ago

6 0

Answer:

29.9 or 30.1

29 or 31

,,,,,

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In-s [12.5K]

Using properties of the logarithm, you can rearrange the integrand as

$\dfrac12\ln(2x^2)=\dfrac{\ln2+\ln x^2}2=\dfrac{\ln2+2\ln x}2=\ln\sqrt2+\ln x$

Then recall that the integral of $\ln x$ is

$\displaystyle\int\ln x\,\mathrm dx=x(\ln x-1)+C$

(or you can find that out by integrating by parts) and so

$\displaystyle\int\frac12\ln(2x^2)\,\mathrm dx=(\ln\sqrt2)x+x(\ln x-1)+C$

5 0

3 years ago

Kyle made cookies for a bake sale. he made 20 cookies in the shape of a flower and 32 cookies in other shapes. what is the proba

julia-pushkina [17]

20/32= 5/8 is correct answer

8 0

4 years ago

A circle has a circumference of 7.850 units. What is its radius?

Roman55 [17]

$\bf \textit{circumference of a circle}\\\\ C=2\pi r~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ C=7.850 \end{cases}\implies 7.850=2\pi r\implies \cfrac{7.85}{2\pi }=r\implies 1.25\approx r$

8 0

3 years ago

Read 2 more answers

Solve for x and then find the measure of B

s344n2d4d5 [400]

Answer:

x = 9 Angle B = 40 degrees

Step-by-step explanation:

Angles A and B are congruent, so the equation are the same

5x - 5 = 3x + 13

-3x - 3x Subtract 3x from both sides

2x - 5 = 13

+ 5 +5 Add 5 to both sides

2x = 18 Divide both sides by 2

x = 9

Plug this into the equation for angle B

B = 3(9) + 13 Multiply

B = 27 + 13 Add

B = 40

If these answers are correct, please make me Brainliest!

7 0

4 years ago

20 POINTS for anyone that can help!

ANTONII [103]

Answer:

ABCD is a square and a rectangle, just graph the points to see the shape it makes

4 0

3 years ago