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2 years ago

In which expression should the exponents be multiplied

Mathematics

1 answer:

AleksAgata [21]2 years ago

6 0

Answer:

when the bases are different and the powers are same

Step-by-step explanation:

(a)²★(a)³=(a)²+³........

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luis wants to buy a skateboard that usually sells for $79.99. all merchandise is discounted by 12%. what is the total cost of th

aivan3 [116]

<u>ANSWER: </u>

The total cost of the skate board is $74.61.

<u>SOLUTION: </u>

Given, Luis wants to buy a skateboard that usually sells for $79.99. all merchandise is discounted by 12%. luis has to pay a state sales tax of 6.75%.

We need to find what is the total cost of the skateboard.

Final cost is nothing but original amount subtracted by discount and added with tax.

final cost = original cost – discount + sales tax

Original cost = $79.99

Discount = 12% of original cost

$\begin{array}{l}{=12 \% \times 79.99} \\\\ {=\frac{12}{100} \times 79.99} \\\\ {=\frac{959.88}{100}} \\\\ {=9.5988}\end{array}$

discount is $9.6 approximately

Sales tax = 6% of cost after discounting

$\begin{array}{l}{=6 \% \times \text { (original cost - discount) }} \\\\ {=\frac{6}{100} \times(79.99-9.6)} \\\\ {=\frac{6}{100} \times(70.39)} \\\\ {=\frac{422.34}{100}} \\\\ {=4.2234}\end{array}$

Sales tax is $4.22 approximately

Now, final cost = 79.99 – 9.6 + 4.22

= 84.21 - 9.6

= 74.61

Hence, the total cost of the skate board is $74.61

6 0

2 years ago

Find the area of a triangle

timama [110]

Answer:

½*b*h

Step-by-step explanation:

½*base*height

<h2>you can use the above formula to answer the following questions.</h2>

3 0

2 years ago

True or False - the following scenario depicts an independent relationship between variables (tree growth and air quality): 20%

Aneli [31]

True it will be true

7 0

2 years ago

Read 2 more answers

Need help with the last three asap

Sunny_sXe [5.5K]

13) Angle 1= 54 Angle 2=36
14) Angle 1=122 Angle 2=58
15) Angle 1=51 Angle 2=39
Attached is the work
Hope this helps!

7 0

2 years ago

Out of 18 people surveyed at the mall, 4 have a motorcycle. Based on these results of the 270 people at the mall, how many have

Shkiper50 [21]

Answer: 60

Step-by-step explanation: Okay, so 4 is approx 22.3 percent of 18, so 22.3 percent of 270 is approx 60. That's how I worked it out, please do tell if I am wrong.

3 0

2 years ago