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2 years ago

Which pair of angles in the figure creates a straight angle?

Mathematics

1 answer:

dsp732 years ago

8 0

Answer:

angle C and angle D

Step-by-step explanation:

when those two angles are added together, they are to give a total angle of 180°

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Which equation is in slope-intercept form and has a y-intercept of -2?

NISA [10]

Answer:

the

Step-by-step explanation:

3 0

3 years ago

Evaluate the integral. pls help me see the steps. thank you

Alona [7]

Answer:

$-\frac{2}{15}(1-x)^\frac{3}{2}(3x+2)+C$

Step-by-step explanation:

Use the method of integration by parts. The method is based in the following rule of derivation of two functions f and g :

$(fg)' = f'g+fg'\implies fg'=(fg)'-f'g\implies \\\int fg' dx = fg -\int f'g dx$

Identify suitable f and g in the original expression. I use:

$f=x\,\,\,, \,\,\,g=\sqrt{1-x}\\f'=1\,\,\,,\,\,\,g'=-\frac{2}{3}(1-x)^\frac{3}{2}$

and write the integration by parts :

$\int x\sqrt{1-x} dx = -\frac{2}{3}x(1-x)^\frac{3}{2}+\frac{2}{3}\int (1-x)^\frac{3}{2}dx=\\ =-\frac{2}{3}x(1-x)^\frac{3}{2}-\frac{4}{15}(1-x)^\frac{5}{2}+C=\\=-\frac{2}{15}(1-x)^\frac{3}{2}(3x+2)+C$

with C an arbitrary integration constant.

8 0

2 years ago

Question 10 of 24

skad [1K]

The answer would be: B

4 0

2 years ago

Your last doctor’s visit cost $105. Health insurance through your employer paid $84, and you paid the remaining $21. What percen

koban [17]

Answer:

You paid 20% of the cost.

Step-by-step explanation:

6 0

2 years ago

Daniel guesses that he scored a 95 on his science test.His actual score is 91. What is the percent error in Daniel's guess? Roun

Kamila [148]

1) Formula for the percent of error:

                               [estimated measure - real measure]
Percent of error = ---------------------------------------------------- x 100
                                            real measure

2) Calculations:

                             [95 - 91]
Percent error = --------------- x 100 = 4.4 %
                                 91

Answer: 4.4%

3 0

2 years ago