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rodikova [14]
3 years ago
14

Can somebody pls help me!

Mathematics
1 answer:
poizon [28]3 years ago
5 0

Answer:

What do you need help with

Step-by-step explanation:

I can do math and spanish

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Find the volume of a cube 8 1/8 cm.
vichka [17]
I hope this helps you



8 1/8 65/8



Volume =(65/8)^3



Volume =274625/512



Volume =536,376
6 0
4 years ago
Read 2 more answers
Can someone help me I have two more other questions they are 15 points each I just posted them right now! Thanks so much
nlexa [21]

Answer:

$10 coins: 21

$20 coins: 24

Step-by-step explanation:

heyy me again

So we can create 2 equations where

x = number of $10 coins

y = number of $20 coins:

x + y = 45

10x + 20y = 690

we can move equation 1 around so that we can get a value of x

x = 45 - y

now we can substitute x into the second equation

10(45 - y) + 20y = 690

450 - 10y + 20y = 690

10y = 240

y = 24

Now plug in y back into the first equation

x = 45 - y

x = 45 - 24

x = 21

8 0
3 years ago
20x3 - 45x2 + 21x + 25 \<br><br> 4x - 5
tiny-mole [99]

Answer:

80x3 - 180x2 + 109x - 20

—————————————

               4            

Step-by-step explanation:

4 0
3 years ago
If you divide a number by a other number will it always be smaller?
ioda
No you can divide 0.5 by 0.25 and you will get 2
6 0
3 years ago
Read 2 more answers
A company has developed a new ink-jet cartridge for its printer that it believes has a longer life-time on average than the one
Mila [183]

Answer:

The test hypothesis is :

H_0: \mu=1502.5\\ H_a: \mu>1502.5

Step-by-step explanation:

Consider the provided information.

Null hypothesis refer the population parameter is equal to the claimed value.

If there is no statistical significance in the test then it is know as the null which is denoted by H_0, otherwise it is known as alternative hypothesis which denoted by H_a.

The historical average lifetime for cartridges produced by the current process is 1502.5 pages.

Hence, the test hypothesis is :

H_0: \mu=1502.5\\ H_a: \mu>1502.5

6 0
3 years ago
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