Mathematics : asked on kward591
 11.10.2022

Multiply and simplify.
(2√5 - √10)*(5√2 + √10)

. 0

Faq

Mathematics
Step-by-step answer
P Answered by Specialist

=10\sqrt{10}+10\sqrt{2}-10\sqrt{5}-10

Step-by-step explanation:

  (2\sqrt{5} -\sqrt{10})(5\sqrt{2}+\sqrt{10})

=2\sqrt{5}\cdot5\sqrt{2}+2\sqrt{5}\sqrt{10}-5\sqrt{2}\sqrt{10}-\sqrt{10}\sqrt{10}

=10\sqrt{10}+2\sqrt{50}-5\sqrt{20}-10

=10\sqrt{10}+2\sqrt{25 \cdot 2}-5\sqrt{4 \cdot5}-10

=10\sqrt{10}+2\sqrt{25}\sqrt{2}-5\sqrt{4}\sqrt{5}-10

=10\sqrt{10}+2\cdot5\sqrt{2}-5\cdot2\sqrt{5}-10

=10\sqrt{10}+10\sqrt{2}-10\sqrt{5}-10

Mathematics
Step-by-step answer
P Answered by PhD

SI=(P*R*T)/100

P=2000

R=1.5

T=6

SI=(2000*1.5*6)/100

=(2000*9)/100

=180

Neil will earn interest of 180

Mathematics
Step-by-step answer
P Answered by PhD

Cost of 7 gallons=$24.50

Cost of 1 gallon=24.50/7=3.5

Cost of 15 gallons=15*3.5=52.5

Cost of 15 gallons will be $52.5

Mathematics
Step-by-step answer
P Answered by PhD

For 1 flavor there are 9 topping

Therefore, for 5 different flavors there will be 5*9 choices

No of choices= 5*9

=45 

Mathematics
Step-by-step answer
P Answered by PhD

For every 8 cars there are 7 trucks

Therefore,

Cars:Truck=8:7

Answer is B)8:7

Mathematics
Step-by-step answer
P Answered by PhD

y=2x+15

where y=Value of coin

x=Age in years

Value of coin after 19 years=2*19+15

=$53

Therefore, Value after 19 years=$53

Mathematics
Step-by-step answer
P Answered by PhD
The answer is in the image 

The answer is in the image 

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