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3 years ago

2. The 120 sixth graders are going on a

Mathematics

1 answer:

pashok25 [27]3 years ago

8 0

Answer:

15 chaperones

Step-by-step explanation:

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Which of the following is a monomial?<br> ОА. 20х9 – 7х<br> Ов. 9/x<br> Ос. 11х2<br> OD. 20x – 14

777dan777 [17]

Answer:

C. 11x^2 is a monomial

Step-by-step explanation:

11x^2 is a monomial because it contains one term.

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John decided to look at new and used cars. John found a used car for $6000. A new car is $18000, so what percent of the price of

vladimir2022 [97]

John decided to look at new and used cars. John found a used car for $6000. A new car is $18000, so what percent of the price of a new car does John pay for a used car? Round your answer to the nearest tenth if necessary.

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3 years ago

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7- a. What is the radius of the circle with center (3,10) that passes through (12,12)?

loris [4]

Answer: a. Radius of circle = $\sqrt{85}$

b. The equation of this circle : $(x-3)^2+(y-10)^2=85$

Step-by-step explanation:

Given : Center of the circle = (3,10)

Circle is passing through (12,12).

a. To find the radius we apply distance formula (∵ Radius is the distance from center to any point ion the circle.)

Radius of circle = $\sqrt{(12-3)^2+(12-10)^2}$

Radius of circle = $\sqrt{(9)^2+(2)^2}=\sqrt{81+4}=\sqrt{85}$

i.e. Radius of circle = $\sqrt{85}$

b. Equation of a circle = $(x-h)^2+(y-k)^2=r^2$ , where (h,k)=Center and r=radius of the circle.

Put the values of (h,k)= (3,10) and r= $\sqrt{85}$ , we get

$(x-3)^2+(y-10)^2=(\sqrt{85})^2$

$(x-3)^2+(y-10)^2=85$

∴ The equation of this circle : $(x-3)^2+(y-10)^2=85$

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3 years ago

A car is traveling at 70 mi/hour. What is the car's speed in feet per second?

Pepsi [2]

70 miles per hour
5280 feet per mile
5280 x 70 = 369600 feet per hour
3600 seconds per hour
369600 divided by 3600 =
102.67 feet per second (rounded to the nearest hundredth)

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jek_recluse [69]

45.019 i believe space filler

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