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3 years ago

Please show work and i will put the first person the smartest or whatever its called

Mathematics

1 answer:

bearhunter [10]3 years ago

5 0

These are 4 numbers. To calculate the mean sum them up and divide the value by 4.
Mean=(-2+14-18-6)/4
Mean= -12/4 = -3

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If Victor were to put apples in bags so that there were 2 kg in each, then he would use 9 more bags than if he were to place 3 k

Cerrena [4.2K]

Let the number of bags that he would have been used to put 3 kg of apples be x. Thus the number of bags that would be used to put 2kgs will therefore be (x+9), hence the total number of kgs the bags will hold will be given by:
3*x=3x kgs
2(x+9)=(2x+18) kgs
since the total weights are the same then:
2x+18=3x
hence
18=3x-2x
18=x
thus the number of bags required to put 3 kgs of apples will be 18. Thus the total Kgs of apples was:
3x
=3*18
=54 kgs

8 0

3 years ago

Read 2 more answers

Find the distance between -12 and 14 on a number line

jek_recluse [69]

Answer:

-12-4=-16

Step-by-step explanation:

the distance between -12 and 14 on number line

-12-4=-16

|-`16|=16

3 0

3 years ago

A pattern exists among the units digit of the posers of 8 as shown in the diagram.

guajiro [1.7K]

Answer:

B) 4

Step-by-step explanation:

We can solve this by observing some pattern.

The powers ending in 4 as unit digit are:

${8}^{2} , {8}^{6} , {8}^{10} , {8}^{14} , {8}^{20} ,...$

The exponents form the sequence:

2,6,10,14,20,...

We need to check if 62 belongs to this sequence.

This is an arithmetic sequence with a common difference of 4 and a first term of 2.

The explicit formula is

$2 + 4(n - 1)$

We equate this to 62 and solve for n.

$2 + 4(n - 1) = 62 \\ 4(n - 1) = 60 \\ n - 1 = 15 \\ n = 16$

Since n is a natural number, 62 belongs to the sequence.

Hence

${8}^{62}$

will have a unit digit of 4.

4 0

3 years ago

Which is greater 4 P 3 or 4 C 3?

Vladimir [108]

Answer:

$\large\boxed{_4P_3>_4C_3}$

Step-by-step explanation:

$\left\begin{array}{ccc}_nP_r=\dfrac{n!}{(n-r)!}\\\\_nC_r=\dfrac{n!}{r!(n-r)!}\end{array}\right\}\Rightarrow\dfrac{n!}{(n-r)!}>\dfrac{n^!}{r!(n-r)!}\Rightarrow_nP_r>_nC_r\\\\\text{because}\\-\text{the nominators are the same}\\-\text{the denominator}\ (n-r)!\ \text{is graeter than the denominator}\ r!(n-r)!$

$\text{Let's check our example:}\\\\n!=1\cdot2\cdot3\cdot4\cdot...\cdot n\\\\_4P_3=\dfrac{4!}{(4-3)!}=\dfrac{1\cdot2\cdot3\cdot4}{1!}=\dfrac{24}{1}=24\\\\_4C_3=\dfrac{4!}{3!(4-3)!}=\dfrac{1\cdot2\cdot3\cdot4}{1\cdot2\cdot3\cdot1!}=\dfrac{24}{6}=4\\\\24>4\Rightarrow_4P_3>_4C_3$

3 0

3 years ago

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What is the square root of 25? Please explain how to solve this as well!

blondinia [14]

To find the square root of a number you must first make an equation with it using the symbol √

So √25 will be equal to 5

So the square root of 25 is equal to 5!

8 0

3 years ago

Read 2 more answers

Please show work and i will put the first person the smartest or whatever its called​

Please show work and i will put the first person the smartest or whatever its called