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jeyben [28]
3 years ago
14

14) Which expression is prime? A) x2 + 3x + 2 B) x2 + 8x + 7 C) x2 + 8x - 22 D) x2 + 12x + 27

Mathematics
1 answer:
marishachu [46]3 years ago
7 0
C. the only factors of-22 are±1,±2,±11,±22 and no combination of those factors add to 8
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Suppose a city with population 600,000 has been growing at a rate of 3​% per year. If this rate​ continues, find the population
andrezito [222]

Answer:

The answer should be around 1,149663 (Rounded off to the nearest whole number. Also if a population has a remainer you usually add it as 1. This is because these are people)

Step-by-step explanation:

First step involves listing the formulas being used:

600,000= population, 0.03= growth rate 22years= period

Therefore, we take the 600,000 and multiply by 1+0.03 ^22(to the power of 22 or period)

So, 600,000(1+0.03)^22

=1,149662.045 /1,149663

Hope this helps!

6 0
2 years ago
In a village the number of houses and the number of flats are in the ratio 7 : 4 the number of flats and the number of bungalows
LenaWriter [7]

Answer:

  140

Step-by-step explanation:

We can find the number of houses from ...

  # houses = (houses/flats)(flats/bungalows)(# bungalows)

  = (7/4)(8/5)(50)

  # houses = 140

4 0
3 years ago
Uhh yeahh don't know lol ...
Ratling [72]

Answer:

for first blank its 1/3 and second blank is 5

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
If it takes 42 strokes to fill up 3/5 of a line of typing, how many more strokes will it take to complete the line?
lapo4ka [179]

Answer:

28 strokes

Step-by-step explanation:

The computation is shown below:

It is given that the 42 strokes are required to fill up the 3 by 5th

So for completing the line, the number of additional strokes required is

But before the total strokes required is

= 42 × 5 ÷ 3

= 70

This represent the total

so, the additional strokes is

= 70 - 42

= 28 strokes

7 0
2 years ago
7±9÷3±2×4 what is the answer for this
Tanya [424]

Answer:

the answer is 18

Step-by-step explanation:

7+9÷3+2x4= 18

5 0
2 years ago
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