2 years ago

A circle has a diameter of 14cm. What's the circumfrence?

1 answer:

7 0

I believe that when finding the radius of a circle you half the diameter, but when finding the circumference of a circle you need to multiply the diameter (14cm) by pi.

So 14xpi= 43.98229715

But it can be simplified/ rounded to 44cm.

Of course I might be incorrect so do please correct me if I am wrong.

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consider the exponential function g(x)=100 x (2). which of the following situations could be modeled by the function?

daser333 [38]

The initial value of 100 that doubles over each interval.
without the answer choices, I can only describe it and give you an example of the graph.
I'm assuming the function is 100*(2)^x because if it is as listed it would be a quadratic function with a vertical stretch of 100.

3 0

3 years ago

Pls help, solve for a.

vovangra [49]

A equals -1/2 is the right answer

5 0

2 years ago

Please help this is worth a lot of my grade:(

Ede4ka [16]

Answer:

Step-by-step explanation:

$a_n=-3n+50\\ \\ a_{15}=-3(15)+50\\ \\ a_{15}=-45+50\\ \\ a_{15}=5$

5 0

2 years ago

The difference of two numbers is more than 12,and one of the numbers is 3

klio [65]

X+y = 12
x-y = 3
x = 3+y

Substitute it in 1st equation,
3+y+y=12
2y = 9
y = 4.5

Substitute it in 1st eq.,
x = 12-4.5 = 7.5

So, the two numbers are 7.5 & 4.5

Hope this helps!

6 0

2 years ago

2x+3 less than or equal to 5

rjkz [21]

$2x+3 \leq 5 \\ \\ (2x+3)-3 \leq (5)-3 \\ \\ 2x \leq 2 \\ \\ \frac{2x}{2} \leq \frac{2}{2} \\ \\ x \leq 1 \\ \\x=( -\infty} ,1]$

6 0

3 years ago

Read 2 more answers