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Mumz [18]
4 years ago
12

Solve the following expressions (plz explain)

Mathematics
2 answers:
Mars2501 [29]4 years ago
7 0
9 to the 3rd power is 729 And 2 to the 5th power is 32. You multiple 9, 3 times. 9 times 9 times 9 and you multiply 2, five times. 2 times 2 times 2 times 2 times 2
motikmotik4 years ago
6 0
9 to the third power is equal to 729 because 9 to the third power means 9 times 9 times 9 which equals to 729 2 to the fifth power is equal to 32 because 2 to the fifth power means 2 times 2 times 2 times 2 times 2 which equals to 32
You might be interested in
Two regular pentagons have areas of 20 mm² and x² - x mm². What values of x make the pentagons congruent?
Aleksandr-060686 [28]

<u>Answer</u>

5 and -4


<u>Explanation</u>

If the two triangle are congruent then they have the same area.

20 = x² - x

x² - x - 20 = 0

x² - x + (1/2)² = 20 + (1/2)²

(x - 1/2)² = 20.25

x - 1/2 = √20.25

x - 1/2 = 4.5                             or    x - 1/2 = - 4.5

x = 4 1/2 + 1/2                                      x = -4 1/2 + 1/2

   = 5                                                      = -4

The values of x are 5 and -4.



8 0
3 years ago
Fernando is making 30 sundaes with mint, chocolate,and vanilla ice cream.1/3 of the Sunday's are mint ice-cream and 1/2 of the r
Alina [70]

Answer:

<u>10 sundaes</u> will be vanilla.

Step-by-step explanation:

Given:

Fernando is making 30 sundaes with mint, chocolate,and vanilla ice cream.

1/3 of the Sunday's are mint ice-cream.

And 1/2 of the remaining sundaes are chocolate.

The rest are vanilla.

Now, to find the number of sundaes that will be vanilla.

Fernando is making sundaes total = 30.

So, the quantity of sundaes that are mint ice-cream:

\frac{1}{3} \ of\ 30\\\\=\frac{1}{3} \times 30\\\\=10.

<em>Thus, 10 sundaes are mint ice-cream.</em>

So, the remaining sundaes are:

30-10=20.

<em>Thus, the remaining sundaes are = 20.</em>

Now, to get the quantity of chocolate sundaes of the remaining sundaes:

\frac{1}{2} \ of\ 20\\\\=\frac{1}{2} \times 20\\\\=10.

<em>Hence, 10 sundaes are chocolate of the remaining 20 sundaes.</em>

<em>As, given the rest are vanilla.</em>

Now, to get the vanilla sundaes we subtract the 10 chocolate ice-cream from the 20 remaining sundaes:

20-10=10.

Therefore, 10 sundaes will be vanilla.

5 0
4 years ago
Use r =27 &amp; x =3<br><br> <img src="https://tex.z-dn.net/?f=-%5Cfrac%7Br%7D%7B9%7D%2B%205x" id="TexFormula1" title="-\frac{r}
MrRa [10]

Answer:

12

Step-by-step explanation:

First substitute the equation with the variable replacements given:

-r/9 + 5x <--- Before

-27/9 + 5(3) <--- After

Next Solve the parts of the Equation

-27/9 + 5(3)

-3 + 15 <--- -27 divided by 9 is -3, 5 times 3 is 15.

= 12 <--- 15 - 3 = 12.

I hope this helps!

4 0
3 years ago
Read 2 more answers
A(b) = 41 + b<br> How much does Alan earn in a week if he sells 24 books?
Archy [21]

Answer:

534

Step-by-step explanation:

idk what ur saying

5 0
3 years ago
What is the Least Common Multiple (LCM) of 24 and 40?
sattari [20]
The answer would be 120 hope this helps!!
4 0
3 years ago
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