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34kurt
2 years ago
10

How do i find the volume in 3d shapes, please help i need to get better grades

Mathematics
1 answer:
Julli [10]2 years ago
8 0
Length*Width*Height
The teacher needs to give you the values
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Hayley and Maxwell are jogging on a track. Hayley jogs 3/4 mile in 1/6 hour. Maxwell jogs 2/3 mile in 2/15 hour. Who is faster?
Vikentia [17]

Did anyone do this I need it for a quiz

7 0
3 years ago
Radium-226 has a half-life of 1620 years. for a 150 gram sample, how many grams will remain after 200 years?
VashaNatasha [74]
Ah, yes

if you start with P amount of something and the half life is h units (in years) and the time elapsed is t (in years) then the amount left is A

the equation is
A=P(\frac{1}{2})^\frac{t}{h}


so
given
h=1620
P=150
t=200
so
A=150(\frac{1}{2})^\frac{200}{1620}
A=150(\frac{1}{2})^\frac{10}{81}
use your calculator
A≈137.69781917515g
about 138grams left
3 0
3 years ago
Explain how to multiply two numbers with different signs.
Vika [28.1K]
<h2>Answer:</h2><h2>When you multiply 2 Integers with the same signs,the result is always positive.</h2><h2>Just multiply the absolute values and make the answer positive.</h2><h2>When you multiply 2 integers with different integers the result is always negative. </h2><h2>Just multiply the absolute values and make the answer negative. </h2>

5 0
3 years ago
Lloyd's Cereal company packages cereal in 1 pound boxes (16 ounces). A sample of 36 boxes is selected at random from the product
Reptile [31]

Answer: 0.0304

Step-by-step explanation:

A z-test is a statistical test that is used to determine if two population means are different when the variances are known and the sample size is large. The test statistic is assumed to have a normal distribution, and nuisance parameters such as standard deviation should be known in order for an accurate z-test to be performed.

A z-statistic, also known as z-score, is a number representing how many standard deviations above or below the mean population a score derived from a z-test is.

Therefore,

sample size,n = 36

mean,u = 16 ounce

standard deviation,s = 0.2 pounds = 3.2 ounce

x = 15 ounce

z = (x-u) / (s/sqrt(n)) = -1.875

In conclusion, the probability that the amount dispensed by box will be increased is:

P(X<15) = P(Z<-1.875)

= 1 - P(Z<1.875)

= 1 - 0.9696

0.0304

The Answer is 0.0304.

4 0
3 years ago
Read 2 more answers
Josh earns $2700 each summer and puts the money in a savings account with a 4.5% simple interest rate. If he deposits the same a
lys-0071 [83]

Answer:

he will have 8,829 dollars after 3 summers

Step-by-step explanation:

by using the cross multiplication method you can calculate how much interest is gathered after each year  

eventually after 3 summers interest has built up he would have 8,829 dollars including the 2,700 he earned each year

7 0
3 years ago
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