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3 years ago

Which of the following BEST describes a pyramid?

Mathematics

1 answer:

Jet001 [13]3 years ago

3 0

Answer:

Step-by-step explanation:

Pyramids must have bases and a point off the base

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Leon wants to buy a shirt that costs $80. The sales tax is 5.5%. How much is the sales tax?

GenaCL600 [577]

Answer:

4,4

Step-by-step explanation:

80×5,5%

80/1×5,5/100

4/1×5,5/5

22/5 = 4 2/5

4 2/5 = 4 4/10 = 44/10 = 4,4

7 0

3 years ago

Dina invests $600 for 5 years at a rate of 2% per year compound interest.

Aleks [24]

Answer:

The value of this investment at the end of the 5 years is of $662.5.

Step-by-step explanation:

Compound interest:

The compound interest formula is given by:

$A(t) = P(1 + \frac{r}{n})^{nt}$

Where A(t) is the amount of money after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per year and t is the time in years for which the money is invested or borrowed.

Dina invests $600 for 5 years at a rate of 2% per year compound interest.

This means that $P = 600, t = 5, r = 0.02, n = 1$ . Thus

$A(t) = P(1 + \frac{r}{n})^{nt}$

$A(t) = 600(1 + \frac{0.02}{1})^{t}$

$A(t) = 600(1.02)^t$

Calculate the value of this investment at the end of the 5 years.

This is A(5). So

$A(5) = 600(1.02)^5 = 662.5$

The value of this investment at the end of the 5 years is of $662.5.

5 0

3 years ago

What is 1023x102+112-5=

kiruha [24]

Answer:

The answer is 104,453.

Step-by-step explanation:

Multiply 1,023 and 102 first because you always have to do your problems left to right in math. Your equation should now look like 104,346 + 112 - 5. Calculate the sum of the positive numbers by adding 104, 346 + 112. Your equation should now be 104,458 - 5. Then lastly, you subtract the numbers 104,458 and 5, and you should get 104, 453 as your answer.

7 0

3 years ago

Read 2 more answers

You have a kite whose diagnoals are 8 m and 22 m. Find the area of the kite. Show all of your work.

Wittaler [7]

-----------------------------
Formula
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$\text {Area of a kite = } \dfrac{pq}{2} \text { where p and q are the diagonals }$

-----------------------------
Find Area
-----------------------------

$\text {Area = } \dfrac{8 \times 22}{2}$

$\text {Area = } \dfrac{176}{2}$

$\text {Area = } 88 \ m^{2}$

-----------------------------
Answer: Area = 88m²
-----------------------------

6 0

4 years ago

Liz has 72 stamps in her collection. Risa, who just started her collection, has 9 stamps. Liz’s collection is how many times lar

qwelly [4]

Answer:

8× (8 times)

Explanation:

For this question, divide.

72 ÷ 9 = 8.

Your answer will be 8.

7 0

3 years ago

Read 2 more answers