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Black_prince [1.1K]
2 years ago
11

Expand & simplify5(9+6) + 3(9+3)​

Mathematics
1 answer:
Snowcat [4.5K]2 years ago
4 0

Answer:

<h2>HOPE IT WILL HELP UH</h2><h2>MARK ME AS A BRAINLIST AND FOLLOW ME </h2>

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Lady_Fox [76]
They pay $10.74 each
3 0
3 years ago
3. Given Q = (-1,4) and P = (-2,-2), find QP.​
astra-53 [7]

Step-by-step explanation:

QP=P-Q

QP=(-2,-2)-(-1,4)

QP=(-1,-6)

5 0
3 years ago
You see a sign on a store window announcing a 20% discount on all items. What type of discount can you get at the store?
Ede4ka [16]
The type of discount you can get at the store stated in the situation would be a price discount. This is because regardless of the what item you buy in the store or whatever age you have, the discount is applicable with all. Also, this situation might be one that's usually in a surplus or when you want everything to be sold.
8 0
3 years ago
Read 2 more answers
Please help!
777dan777 [17]

Answer:

\begin{array}{ccc}\text{Radius}&\text{Volume of sphere}&\text{Volume of cylinder}\\&&\\1&\dfrac{4}{3}\pi &2\pi \\&&\\2&\dfrac{32}{3}\pi &16\pi \\&&\\3&36\pi &54\pi \\&&\\4&\dfrac{256}{3}\pi &128\pi \\&&\\5&\dfrac{500}{3}\pi &250\pi\end{array}

Step-by-step explanation:

Use formulas for the volumes:

V_{sphere}=\dfrac{4}{3}\pi r^3,\\ \\V_{cylinder}=\pi r^2h=\pi r^2\cdot 2r=2\pi r^3.

1. When r=1,

V_{sphere}=\dfrac{4}{3}\pi\cdot 1^3=\dfrac{4}{3}\pi,\\ \\V_{cylinder}=2\pi \cdot 1^3=2\pi.

2. When r=2,

V_{sphere}=\dfrac{4}{3}\pi\cdot 2^3=\dfrac{32}{3}\pi,\\ \\V_{cylinder}=2\pi \cdot 2^3=16\pi.

3. When r=3,

V_{sphere}=\dfrac{4}{3}\pi\cdot 3^3=36\pi,\\ \\V_{cylinder}=2\pi \cdot 3^3=54\pi.

4. When r=4,

V_{sphere}=\dfrac{4}{3}\pi\cdot 4^3=\dfrac{256}{3}\pi,\\ \\V_{cylinder}=2\pi \cdot 4^3=128\pi.

5. When r=5,

V_{sphere}=\dfrac{4}{3}\pi\cdot 5^3=\dfrac{500}{3}\pi,\\ \\V_{cylinder}=2\pi \cdot 5^3=250\pi.

Note that for all r,

\dfrac{V_{sphere}}{V_{cylinder}}=\dfrac{\frac{4}{3}\pi r^3}{2\pi r^3}=\dfrac{2}{3}.

8 0
3 years ago
Read 2 more answers
Which summation formula represents the series below?
Ber [7]

Answer:

Step-by-step explanation:

The summation formula (  arithmetic sequence when the first terme is : A1 = 13

and the coomo diff is d= -4

Sn = n/2(A1 +An)

An = A1+(n-1)d

An = 13 +(n-1)(-4)

An = -4n +17

Sn = n/2(13+17-4n) = n/2(30-4n)

Sn = -2n² +15n

in this exercice : n =4      S4 = -2(4)² +15(4) = -32+60 = 28

verify : 13 + 9 + 5 + 1 =28   ......right

8 0
3 years ago
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