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3 years ago

Just number 4 pleaseeee

Mathematics

1 answer:

Aleksandr [31]3 years ago

7 0

Hello!

The formula is given to you. :)

C = 3.14 • D (diameter; line across a circle that cuts it in half)

C = 3.14 • 21 = 65.94 inches.

Hope I helped! Also, I hope I didn’t answer this too late. ;)

~Destiny ^_^

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8x – 8 = 7x + 4 <br> x = 12<br><br> How do they get 12?

Tpy6a [65]

By simplifying both sides of the equation then isolating the variable

8 0

3 years ago

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Ann Ben and cheyrl share some money in the ratio 3:7:10 Ben receives £650 more than Ann calculate the total amount of money that

k0ka [10]

Let

x------------> Ann's amount of money

y------------> Ben's amount of money

z------------> Cheryl's amount of money

we know that

y=x+650-----> equation 1

x/y=3/7------> y=(7/3)*x-----> equation 2

y/z=7/10-----> equation 3

x/z=3/10-----> equation 4

equate equation 1 and equation 2

x+650=(7/3)*x------> multiply by 3-----> 3x+1950=7x----> 4x=1950

x=1950/4-----> x=487.5

y=x+650-----> y=487.5+650-----> y=1137.5

y/z=7/10------> z/y=10/7------> z=(10/7)*1137.5-----> z=1625

the answer is

Ann's amount of money is £487.5

Ben's amount of money is £1137.5

Cheryl's amount of money is £1625

487.5+1137.5+1625=£3250

The total of money shared is £3250

3 0

4 years ago

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A construction company is analyzing which of its older projects need renovation. Building B was built two years before building

charle [14.2K]

Answer: no idea

Step-by-step explanation:

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3 years ago

A zookeeper is monitoring the population of gazelles. The herd needs three times more males than females to thrive, and the zoo

avanturin [10]

Answer:

0 < x ≤ 12 and 0 < y ≤ 36

Step-by-step explanation:

Here, x represents the number of female gazelles and y represents the number of male gazelles.

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∵ The number of rooms must be more than or equal to the total female gazelles ,

12 ≥ x

Also, number of animals can not be negative,

And, it must be greater than 0.

⇒ 0 < x ≤ 12,

⇒ 3(0) < 3x ≤ 3(12)

⇒ 0 < 3x ≤ 36

∵ Number of males gazelles = 3 × number of female gazelles

⇒ y = 3x

⇒ 0 < y ≤ 36

Hence, the constraints to represent a thriving population of gazelles at the zoo are,

0 < x ≤ 12,

0 < y ≤ 36

7 0

3 years ago

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FAST ANSWER PLEASE THANKS

Citrus2011 [14]

Answer:

(f • g)(x) = x² - 6x + 7

Step-by-step explanation:

Suppose

f(x) = x² - 2

g(x) = x - 3

Determine

(f • g)(x) = ...

We can compose the functions by doing the following

(f • g)(x) = f(g(x))

(f • g)(x) = f(x - 3)

(f • g)(x) = (x - 3)² - 2

(f • g)(x) = x² - 6x + 9 - 2

(f • g)(x) = x² - 6x + 7

I hope this helps!

8 0

4 years ago