Please help my friend and I on math! :D

Answers

Answer 1

Answer: Ok...

We know that when: t=0, C(t)=8.

With this data, the expression below can be produced...

8=ab⁰

Now since b⁰=1, we've discovered that a=8.

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Furthermore, we also know that when: t=1, C(t)=24. Since we discovered that a=8, we can produce the expression below...

24=8*b¹

This means that:

8b=24

Therefore: b=24/8=3.

If a=8 and b=3...

C(t)=8*(3^t)

Answer:

C(t)=8*(3^t)

Answer 2

Answer: ok so
0,8
so
8=ab^0
8=a1
8=a
we also have
1,24 so
24=8b^1
24=8b
divide 8
3=b

therefor the eqution is
$C(t)=8(3^(t))$

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1) There are a total of 18 chairs. If the ratio of the red chairs to brown chairs is 2 to 4 , how many of them are red.2) rock can read 10 books in 30 minutes .how long does it take rock to read 15 books ,if the speed is consistent?
3)Ricky is at the bakery shop when he sees that 8 pastries cost $160. he needs 16 pastries . how much will 16 pastries cost .

Answers

1) When you're finding ratios, the best thing to do is to add the parts together to find what one part is.
2+4= 6. Then divide this by the total- 18/6=3.
Therefore, the ratio of red to brown chairs is 2*3:4*3
Therefore, the amount of red chairs is 12.

2) The best thing to do i to find out how long it takes him to read one book them multiply this by 15.
To do this, simply divide the amount of time by the amount of books that he has read.
30/10= 3
Therefore, Rock can read a book in three minutes. As he is reading 15, you multiply these together.
3*15= 45
Therefore, it will take Rock 45 minutes to read 15 books.

3) The best thing to do is to find out what one pastry costs, and you can do this by dividing the cost by the amount of pastries.
160/8= 20.
Therefore, one pastry costs $20.
As you want to find the cost of 16 pastries, you simply times these together.
20*16= 320
Therefore, 16 pastries cost $320.

Hope this helps :)

An assistant receives a 10% raise bringing the salary to 47,633 what was the salary before the raise

Answers

The answer is 4763. Hope that helped d:

What is the vertex f(x)= 5x^2+20x-16

Answers

f(x) = 5x² + 20x - 16

y = 5(x² + 4x) - 16
y + 16 = 5(x² + 4x + __)

perfect square:
x² ⇒ x * x
4x ⇒ 2*2x
2² = 4

y + 16 + 4 = 5(x² + 4x + 4)
y + 20 = 5(x+2)²

(x+2)² ⇒ (x+2)(x+2) = x(x+2) + 2(x+2) = x² + 2x + 2x + 4 = x² + 4x + 4

y = 5(x+2)² - 20

2(3x-1) polynomial operations

Answers

$2(3x-1)=6x-2$

How to make an octagon with 3 smaller shapes

Answers

You can make an octagon with 3 smaller shapes by using a square in the central/middle of the octagon. Then place 2 rectangles on the top and bottom of the square and complete the octagon by using two trapezoids to the left and the right of the square.

Answer:

Square, rectangle and trapezoid are use to make an octagon.

Step-by-step explanation:

We need to find how to make an octagon with 3 smaller shapes. We can make an octagon using three shapes : rectangle , square and trapezoid.

Square is a quadrilateral with four sides equal .

Rectangle is a quadrilateral with opposite sides equal .

Trapezoid is a quadrilateral with one pair of opposite sides parallel.

Place a square in the central/middle of the octagon. Then place two rectangles on the top and bottom of the square and finally complete the octagon by placing two trapezoids on the left and the right of the square.

Please answer fast, I need this for test corrections. Thank you

Answers

Answer:

Step-by-step explanation:what’s D.O.T.S.?

I don’t think I have gotten that far in math, sorry if that doesn’t help, maybe explain it to me.

The correct answer would be B.

16^10 - 25 = (4x^5 - 5)(4x^5 + 5)

Therefore, option B would be D.O.T.S

Please give brainliest.