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aivan3 [116]
3 years ago
14

What is the definition for associative property of multiplication in your own words and explain how you would use it to compute

4*25*27 mentally.
Mathematics
2 answers:
kherson [118]3 years ago
8 0
24x4=100 and multiple 27x100 =2,700
Bess [88]3 years ago
6 0
The associative property is switching the parenthesis of an expression to make solving it easier like (a × b)×c= a ×(b×c).
I would do (25×4)×27 because its easily multiplied because 25×4=100 and from then you could easily multiple 27×100.

Hope this helped
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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
3 years ago
B ÷ -2 =5 will it be negative or positive
Reil [10]
The answer is positive final answer
5 0
3 years ago
Read 2 more answers
In each turn of a game you toss two coins. if 2 heads come up, you win 2 points and if 1 head comes up you win 1 point. if no he
Blizzard [7]

The expected value of the number of points for each turn is 0.25

<h3>What is expected value?</h3>

Expected value describes the long term average level of a random variable based on its probabilty distribution.

Now, Probability that 2 heads come up is

P(2 is H) = 1/4

Probability that 1 heads come up is

P(1 is H) = 2/4

⇒P(1 is H) = 1/2

Probability that no head will come up

P(no H's) = 1/4

Hence, the expected value for winning of 2points, 1point and  lose of3 points is given as-

Expected value = 2 * P(2 is H) + 1 * P(1 is H)  - 3 * P(no H's)

⇒Expected value = 2 * 1/4 + 1 * 1/2 - 3 * 1/4

= 0.5 + 0.5 - 0.75

⇒Expected value = 0.25

More about Expected value :

brainly.com/question/22715250

#SPJ1

3 0
1 year ago
Use the point-slope formula to write an equation of the line that passes through (4,10) and has a slope of m= 3. Write the
baherus [9]
Answer:
3x --y -2= 0
Step-by-step explanation:
We have formula Y - y 1 = m ( X --x1) => Y - 10 = 3(X-4)
3X - Y - 2 = 0 Ans .


4 0
2 years ago
Three​ roads, A,​ B, and​ C, all run south to north. They each meet a highway that runs west to east. Road B is4.5 of Road A. Ro
Ray Of Light [21]

Answer: The moon was 20 farms away from earth so If I ate a couch then went to my treadmill outside of my cow, I could add the letter Grammar to my checklist.

Explanation: You see, If there was a man who had no arms or legs he would be walking with his feet right? SO If I added chickens to my head and ate the Eifel tower am I 50% a chocolate bar. Hope this helps

3 0
3 years ago
Read 2 more answers
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