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shutvik [7]
3 years ago
13

Mentalmath grade 3 $1.00-$0.37

Mathematics
1 answer:
Mkey [24]3 years ago
6 0

Answer:

$0.63

Step-by-step explanation:

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Can somebody please explain and answer this for me? I really don't get it.
Tcecarenko [31]

Answer:

Results can be (-\frac{1}{3} )^5

Step-by-step explanation:

-The solution for this question:

(-\frac{1}{3} )^5 is equal to  (-\frac{1}{3}) × (-\frac{1}{3}) × (-\frac{1}{3}) × (-\frac{1}{3}) × (-\frac{1}{3})

-The calculation for (-\frac{1}{3} )^5:

(-\frac{1}{3} )^5 = -\frac{1}{243}

3 0
3 years ago
The product of the first 3 positive whole numbers
Kryger [21]

Answer:

If you mean by 1*2*3=6

Step-by-step explanation:

3 0
3 years ago
Over the last 2.5 years, the water level in a lake has changed by -0.3 feet per year. Scientists predict that the water level wi
klio [65]

Answer:

Step-by-step explanation:

A)

"In the last 2.5 years, the water level has decreased 0.75 feet."

In the very first statement it has been stated that over the last 2.5 years, the water level in a lake has changed by -0.3 feet per year. That means in the last 2.5 years , total decrease in level is as follows

2.5 x - 0.3 = - .75 ft .

So the statement is true.

B)

"The overall change of the water level after 7.5 years will be -2.75 feet."

This statement appears to be false based on information provided

No prediction regarding rate of decrease for a period beyond 5 year  has been made so any statement with respect to a timeline of 7.5 years may turn out to be false.

C)

"The change in water level each year for the next 5 years will be -0.4 feet. "

This statement prima-facie appears to be true  because rate of decrease stated in the statement is 0.4 ft /year for next 5 years .

D )

"The overall change in water level for the next 5 years is equal to 5(0.4)"

this statement is true

as change in one year = .4

change in 5 years = 5 x .4

5 0
3 years ago
The proportion of observations from a standard normal distribution that take values greater than 1.36 is:
matrenka [14]

Answer:

We are required to find the proportion of observations from a normal distribution that are greater than 1.36. Mathematically, it can be written as:

P(z>1.36)

To find this proportion, we can use the standard normal table. Using the standard normal table, we have:

P(z>1.36)=0.0869

Therefore, the proportion of observations from a standard normal distribution that take values greater than 1.36 is 0.0869.



3 0
2 years ago
Solve 5x(m+n) using the distributive property
Genrish500 [490]

Answer: 5xm+5xn

Step-by-step explanation:

For this exercise it is necessary to remember the following:

1) The Distributive Property states the following:

a(b+c)=ab+ac\\\\a(b-c)=ab-ac

2) The multiplication of signs:

(+)(+)=+\\(-)(-)=+\\(-)(+)=-\\(+)(-)=-

Knowing this, and having the following expression given in the exercise:

5x(m+n)

You can apply the Distributive property multiplying m and n, which are inside the parentheses, by 5x.

So, you get the following result:

=(5x)(m)+(5x)(n)=5xm+5xn

4 0
3 years ago
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