Ask question

Ask question

All categories

2 years ago

8

Write a exponential function for the two points (0,2) (2,18) y=ab^x

1 answer:

irakobra [83]2 years ago

4 0

18/2=ab^2/ab^0

9=b^2

b=3

18=a(3^2)

18=9a

a=2

y=2(3^x)

You might be interested in

Please answer!!!! please!!!!!!

olga55 [171]

The problem here is: Too many words.

If you boil the problem down to the bare facts, the question is:

   "$210 is 15% of what number ?"

I'm pretty sure you can take it from there,
but here's the rest of it anyway:

$210 = 15% of (March amount)

      $210 = 0.15 x (March amount)

Divide each side by 0.15 :   $1400 = March amount .

Check:
1400 + 210 = 1610
1.15 x 1400 = 1610 yay!

5 0

2 years ago

If B = w + 10 and C = -w - 1, find an expression that equals B + 2C in standard form

enot [183]

Answer:

Step-by-step explanation:

B + 2C

= w + 10 + 2(-w - 1)

= w + 10 -2w - 2

= -w + 8

8 0

2 years ago

In a class of 147 students, 95 are taking math (M), 73 are taking science (S), and 52 are taking both math and science. What is

Marina86 [1]

95/294 orrr 0.3231 And you just round that to the nearest 10th

5 0

2 years ago

HELP WILL GIVE BRANLIEST!!

Dovator [93]

Answer:

the answer is the first option

6 0

3 years ago

Hats and mittens are on sale at the store! One woman was able to buy 5 hats and 4 pairs of mittens for $30.

morpeh [17]

The price of one hat is $2 and price of one pair of mittens is $5.

Step-by-step explanation:

Let,

Price of one hat = x

Price of one pair of mittens = y

According to given statement;

5x+4y=30 Eqn 1

2x+3y=19 Eqn 2

Multiplying Eqn 1 by 2

$2(5x+4y=30)\\10x+8y=60\ \ \ \ Eqn\ 3$

Multiplying Eqn 2 by 5

$5(2x+3y=19)\\10x+15y=95\ \ \ \ Eqn\ 4$

Subtracting Eqn 3 from Eqn 4

$(10x+15y)-(10x+8y)=95-60\\10x+15y-10x-8y=35\\7y=35\\$

Dividing both sides by 7

$\frac{7y}{7}=\frac{35}{7}\\y=5$

Putting y=5 in Eqn 1

$5x+4(5)=30\\5x+20=30\\5x=30-20\\5x=10$

Dividing both sides by 5

$\frac{5x}{5}=\frac{10}{2}\\x=2$

The price of one hat is $2 and price of one pair of mittens is $5.

Keywords: linear equation, subtraction

Learn more about linear equations at:

#LearnwithBrainly

4 0

3 years ago