3 years ago

Can you guys help with this one please, thanks

Mathematics

1 answer:

densk [106]3 years ago

7 0

5^6 (5 to the 6th power)

You might be interested in

A coffee shop sells refill mugs for $7.50 each. Each coffee refill costs $1.75. Last month, Cody spent $42.50 on a mug and refil

Advocard [28]

1.75x-7.50=42.50 then you would simplify to find x

7 0

3 years ago

Read 2 more answers

Aron flips a penny 9 times. Which expression represents the probability of getting exactly 3 heads?

DedPeter [7]

Answer:

$9C3*(0.5)^3(0.5)^6$

Step-by-step explanation:

The binomial probability formula shown has variables which represents:

n is the total number of trials (here, we flip penny 9 times, hence n = 9)

k is the number we want to find (here, we want the probability of 3 heads, so k = 3)

p is the probability of success (here, success means getting heads. So, in a coin flip the probability of heads is always 1/2, so p = 1/2)

<em>Putting all the info into the equation and using formula for nCk, we get:</em>

$P(k successes)=nCk*p^{k}(1-p)^{n-k}\\P(3Heads)=9C3*(0.5)^3(1-0.5)^{9-3}\\P(3Heads)=9C3*(0.5)^3(0.5)^6$

The first expression shown in the answer choices is right.

3 0

3 years ago

Read 2 more answers

Sandy does babysitting in her spare time. She gets $100 advance pay and $10 per hour for babysitting. She wants to earn enough t

Andrej [43]

Step-by-step explanation:

She needs to baby sit for 5 hours = 5 x 110 = 550

4 0

4 years ago

Solve the equation.

morpeh [17]

Answer:x=0

Step-by-step explanation:

4 0

3 years ago

Sarah sold her stock for $56.25 A share, which reflected a ROI of 7.7%. What was the original price of her stock?

V125BC [204]

Her's stock original price was approximately $52.23 a share.

ROI is found by dividing the gain from the investment minus the cost of the investment by the cost of the investment: ROI = $\frac{gain-cost}{cost}$
We know the ROI (7.7%, or 0.077) and the gain ($56.25).

0.077= $\frac{56.25-cost}{cost}$ ⇔ 0.077= $\frac{56.25}{cost}-\frac{cost}{cost}$ ⇔ 0.077= $\frac{56.25}{cost}-1$ ⇔ 1.077= $\frac{56.25}{cost}$ ⇔ cost= $\frac{56.25}{1.077}$ ⇔ cost≈52.23

7 0

4 years ago