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Alexeev081 [22]
4 years ago
11

Evaluate the sum by fractorisation method :59^2-41^2

Mathematics
1 answer:
Oduvanchick [21]4 years ago
6 0
59^2-41^2=(59-41)(59+41)=2\cdot100=200

Used:a^2-b^2=(a-b)(a+b)
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Dana is the campaign manager for a candidate for governor. Through a commissioned poll, she discovers that the candidate's appro
aleksley [76]

Answer:

25.71%

Step-by-step explanation:

Although the first instinct would be to say that his approval rating changed by 18%, the actual percent change for the candidate's approval rating is given by the difference between both polls (18%) divided by the candidate's approval in the first poll (70%):

P=\frac{18}{70} =0.2571=25.71\%

The percent change for the candidate's approval rating was 25.71%

3 0
4 years ago
A national military bureau for a certain country collects data on active members in the military. Results are published in a nat
Artemon [7]

Answer:

9.193259%

Step-by-step explanation:

In order to obtain the percentage of military members in the reserves who are​ Black, we will have to multiply the percentage of Black military members in the reserve by the percentage of military members in the reserve. This is calculated as follows:

Military members in the reserves who are​ Black (%) = 77.1771​% × 11.9119​%

                                                                                      = 9.193259%

Therefore, he percentage of military members in the reserves who are​ Black is 9.193259% .

Example

For example, let assume the total number of active members in the military is 100.

To obtain the number of military members who are in the reserves, we multiply 77.1771​% by 100. This gives us 78 approximately.

To obtain the number of military members in the reserves who are​ Black, we multiply 11.9119​% by 78 we got above who are active military members in the reserves. This gives us 9 members approximately.

I wish you the best.

3 0
3 years ago
Read 2 more answers
Is x = 1 the solution to 3(x + 3) = 8 - 2x<br> (show me why! Or maybe why not)
zimovet [89]
3(x+3)= 8-2x
3x +9 = 8 - 2x
3x + 1 =-2x
1 = -5x
x = -1/5

no
7 0
3 years ago
Read 2 more answers
I kind of under stand all of the except (d) I am so stuck
Blizzard [7]

Answer:

StIf the area of the map is 21 and the scale factor is 5:1, both of the dimensions of the flat park are multiplied by 5. If both dimensions are multiplied by 5, then the area is multiplied by (5*5)=25 times. 25*21=525.ep-by-step explanation:

3 0
3 years ago
Please can you factor this equation.
Mademuasel [1]
The answer is: 2y^2-20y+12
7 0
4 years ago
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