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3 years ago

12

I dont really understand this so can someone help me please!

1 answer:

pychu [463]3 years ago

3 0

The area of a circle is pi times the radius squared. the radius of this circle is 16.8cm, which is 282cm when squared. multiplied by pi it becomes 887cm.

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A piece of lumber is 17 feet long, You cut the lumber into logs that are 18 inches long, how many 18 inch logs do you cut from t

Marta_Voda [28]

Multiplication and distributive property are your friends for this problen

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3 years ago

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Which is the graph of g(x) = [X + 3]?

Vanyuwa [196]

Answer

D or the fourth one because i took the quiz and got it right

3 0

3 years ago

The function f(t)=3,502.86(1.15)(t−12) models the amount of money in Gavin's investment account after t years. Gavin says this m

liraira [26]

Answer: Yes, because 3502.86 is multiplied by the exponent. i think, because i was stuck between that and the other yes, and the other yes was wrong, so im pretty sure its that.

Tell me if im right.

Step-by-step explanation:

5 0

2 years ago

If 1st and 4tg terms of G.p are 500 and 32 respectively it's second term is ?

bixtya [17]

Answer:

$T_{2} = 200$

Step-by-step explanation:

Given

Geometry Progression

$T_1 = 500$

$T_4 = 32$

Required

Calculate the second term

First, we need to write out the formula to calculate the nth term of a GP

$T_n = ar^{n-1}$

For first term: Tn = 500 and n = 1

$500 = ar^{1-1}$

$500 = ar^{0}$

$500 = a$

$a = 500$

For fought term: Tn = 32 and n = 4

$32 = ar^{4-1}$

$32 = ar^3$

Substitute 500 for a

$32 = 500 * r^3$

Make r^3 the subject

$r^3 = \frac{32}{500}$

$r^3 = 0.064$

Take cube roots

$\sqrt[3]{r^3} = \sqrt[3]{0.064}$

$r = \sqrt[3]{0.064}$

$r = 0.4$

Using: $T_n = ar^{n-1}$

$n = 2$ $r = 0.4$ and $a = 500$

$T_{2} = 500 * 0.4^{2-1}$

$T_{2} = 500 * 0.4^1$

$T_{2} = 500 * 0.4$

$T_{2} = 200$

<em>Hence, the second term is 200</em>

5 0

3 years ago

Solve the following system of equations using substitution <br> x = 4 <br> 2x + 4y = 36

DiKsa [7]

Just plug in 4 for the x

2*4 +4y =36
8+4y =36
4y =36-8
4y=28
y= 28/4
y=7

7 0

2 years ago

Read 2 more answers