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3 years ago

Olivia wrapped a string around a circle and found it was 30 mm long. Approximately, what is the radius of this circle

Mathematics

1 answer:

mafiozo [28]3 years ago

8 0

Answer:7.5

Step-by-step explanation: cause I looked it up lol

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80% more then $20.00

ElenaW [278]

Answer

$36

Step-by-step explanation:

You multiply 0.8 by 20 since 0.8 is also 80% and you get 16. Since you want 80% more than 20 you add together to get $36. Hope it helped!

6 0

2 years ago

Read 2 more answers

mr. pollack's biology class observed the growth of pea plants. if 5 pea plants grew to 30 cm and 15 pea plants grew to 50 cm, wh

rodikova [14]

U do 5 times 30 and get 150 then take 15 times 50 and get 750 last take 750 plus 150 and u get 900 cm

7 0

2 years ago

Pls help me solve this question, also include step by step calculation ya. Thks

sp2606 [1]

$\displaystyle\\Answer:\ x=\sqrt{2}\ \ \ \ \ x=-\sqrt{2}\ \ \ \ \ x=\frac{ln5}{2}$

Step-by-step explanation:

$5x^2-x^2e^{2x}+2e^{2x}=10$

$Let:\ x^2=t \ \ \ \ \ e^{2x}=v\\Hence,\\5t-tv+2v^2=10\\5t-tv+2v^2-10=10-10\\5t-tv-10+2v^2=0\\t(5-v)-2(5-v)=0\\(5-v)(t-2)=0\\5-v=0\\5-v+v=0+v\\5=v\\5=e^{2x}$

Prologarithmize both parts of the equation:

$ln5=lne^{2x}\\ln5=2x*lne\\ln5=2x*1\\ln5=2x\\$

Divide both parts of the equation by 2:

$\displaystyle\\x=\frac{ln5}{2}$

$t-2=0\\t-2+2=0+2\\t=2\\x^2=2\\x=\sqrt{2} \\x=-\sqrt{2}$

6 0

1 year ago

Answer fast please please

Maurinko [17]

Answer:

A: 200 combinations

Step-by-step explanation:

You multiply 4 by 10 to get 40 and then you multiply 40 by 5 to get 200 options

3 0

3 years ago

A company made a bar graph showing the amount of sales for each month in thousands of dollars. Which of the following is closest

xxTIMURxx [149]

I believe it’s A I may be wrong tho

8 0

3 years ago

Olivia wrapped a string around a circle and found it was 30 mm long. Approximately, what is the radius of this circle

Olivia wrapped a string around a circle and found it was 30 mm long. Approximately, what is the radius of this circle