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damaskus [11]
3 years ago
9

Pls help me it's due today​

Mathematics
1 answer:
Dimas [21]3 years ago
8 0

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!

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T+8/10=9/10 solve equation
Reika [66]
For this question you can add -8/10 on both sides so you gonna have : 
T = 9/10 - 8/10 = 1/10 so the answer is T = 0.1 :))
i hope this is helpful 
have a nice day 
5 0
4 years ago
Read 2 more answers
Plz solve for the area, questions 10,11,and 12 plz
marishachu [46]

Answer:

10-52.85ft squared  11-144.84centimeters squared 12-304meters squared

Step-by-step explanation:

A-bh/2 10-7*15.1=105.7/2=52.85ft squared

A-bh 11-10.2*14.2=144.84cenitmeters squared

A-bh 20*15.2=304meters squared

4 0
3 years ago
Find the greatest common factor of 10 and 125.
natulia [17]

Answer:

5

Step-by-step explanation:

10 = 2 * 5

125 = 5 * 5 * 5

Taking out the duplicates from the  2 lists :-  GCF = 5

5 0
3 years ago
If the volume for 3-D pyramid A is 400 cm3 and the volume for 3-D pyramid B is 800 cm3, how many times bigger is the volume of p
Zarrin [17]
The answer for this question is (100% correct)

A. 2
8 0
3 years ago
Ethan invests £500 in the bank for 2 years he earned £40 simple interest
Natalka [10]

Answer:

Rate = 4%

Step-by-step explanation:

principal = £500

time = 2 years

simple interest = £40

rate = ?

simple interest = PTR / 100

£40 = £500*2*R /100

£40*100 = £1000*R

£4000/£1000 = R

4 % = R

7 0
3 years ago
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