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2 years ago

What property is (3x5)x2=5x(2x3)

Mathematics

1 answer:

Anettt [7]2 years ago

7 0

(3x5)X2=5x(2x3)
15x2=5x6
30=30

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Pls help me it's due today

Dimas [21]

Answer:

r³ + 15r² - 10r - 4

Step-by-step explanation:

First, note you can remove the brackets, in this case they contribute nothing at all.

Then, group the like terms and add them, e.g., we have 3r³ and -2r², they add up to r³.

Finally, order them from greatest power of r to smallest power of r.

That's all!

8 0

2 years ago

Hi please help me with this i’ll give brainliest if you give a correct answer

Harlamova29_29 [7]

Answer:

Step-by-step explanation:

a) PR=SU

b) PQ=TU

c) RQ=TS

5 0

2 years ago

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in a survey of 3271 adults aged 57 through 85 years, it was found that 88.7% of them used at least one prescribed medication

mixer [17]

How many of the 3271 subjects used at least one prescription medication? Round to the nearest integer asneeded.)

Answer:

2902

Step-by-step explanation:

Let the total number of adults within the mentioned age bracket be n=3271

The proportion of adults who used at least one prescription medication be p=88.7%=0.887

The point estimate of population is given by

$p=\frac {x}{n}$ where x is number of individuals in the sample with the specified characteristics and n is the sample size.

Let x be the adults who used at least one prescription medication

$0.887=\frac {x}{3271}$

$x=3271*0.887=2901.377\approx 2902$

3 0

2 years ago

Find the value of x: x/6 = 16/48 *

allochka39001 [22]

Answer:

x = 2

Step-by-step explanation:

cross multiply!

48x = (16)6

48x = 96

x = 2

4 0

2 years ago

2x-1=10 what is the answer please someone help

Jlenok [28]

10+1=11
2x=11
x=11/2
x=5.5

8 0

3 years ago

Read 2 more answers