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2 years ago

Please help me to solve this question

Mathematics

1 answer:

densk [106]2 years ago

7 0

Answer:

(p+5)(p-2)

Step-by-step explanation:

We are looking for two numbers that multiply to -10 (the rightmost number) and sum to 3 (the middle number)

These are 5 and -2

So we write

(p ____)(p ____)

and fill in the blanks

(p+5)(p-2)

Check by FOILing:

p^2 -2p + 5p -10

And combine the two middle terms.

p^2 + 3p - 10

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Make a subject of r = square root of a / 3

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Square both sides:

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2 years ago

12 + 5 + 32 × 10 − 5 = <br> (12 + 5) + 32 × (10 − 5) =

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3 years ago

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-7-a

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The number of employees for a certain company has been decreasing each year by 3%. If the company currently has 810 employees an

8090 [49]

Answer:

219 employees

Step-by-step explanation:

3% of decreasing rate of employees per year is calculated thus:

$3\% \: of \: 810 \: employees$

$= \frac{3}{100} \times 810$

$= 24.3 \: employees \: per \: year$

In 9 years,

$= 24.3 \times 9$

$= 218.7 = 219 \: employees$

Therefore, the number of employees for a certain company where decreasing rate of employees is 3% and continued to decrease for 9 years; and 810 employees are currently working is 219 employees. By implication, 810 + 219 = 1029 employees were working in the company 9 years ago.

6 0

2 years ago

The sum of two numbers is 19, and their difference is 55. What are the two numbers?

Vilka [71]

Answer:

37 and -18

Step-by-step explanation:

Let one number be x and other y

1 x + 1 y = 19 .............1

1 x -1 y = 55 .............2

Eliminate y

multiply (1)by 1

Multiply (2) by 1

1 x 1 y = 19

1 x + -1 y = 55

Add the two equations

2 x = 74

/ 2

x = 37

plug value of x in (1)

1 x + 1 y = 19

37 + 1 y = 19

1 y = 19 -37

1 y = -18

y = -18

37 and -18

5 0

2 years ago

Please help me to solve this question​

Please help me to solve this question