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liq [111]
3 years ago
14

Which of the following represents the factorization of the polynomial below x^2+9x+20

Mathematics
1 answer:
rusak2 [61]3 years ago
5 0

Answer:

(x+5)(x+4)

Step-by-step explanation:

x^2+9x+20

Factor

What 2 numbers multiply to 20 and add to 9

5*4 = 20

5+4 =9

(x+5)(x+4)

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At the start of 2014 Lucy's house was worth £200 000
slavikrds [6]

Answer:

200000 x 1.05^3=231525

Step-by-step explanation:

X 1.05 because the price is increasing by 5% and ^3 because there are three years between 2014 and 2017

7 0
2 years ago
The radius of a sphere is 6 units.
Alekssandra [29.7K]

Answer: 4/3 π 6³

Step-by-step explanation:

Hi, to answer this question we have to apply the next formula:

Volume of a sphere: 4/3 π r³

Replacing with the values given:

V = 4/3 π 6³

If we solve the expression:

V = 4.18 (6)^3

V = 904.77 cubic units

Feel free to ask for more if needed or if you did not understand something.

8 0
2 years ago
A Solution has a density of 1.50g/mL How many grams are needed to obtain 10.0mL of solution
san4es73 [151]
DENSITY =MASS/VOLUME

OR MASS = DENSITY X VOLUME


DENSITY =1.5 g/ml  AND VOLUME = 10 ml


MASS = 1.5 x 10 = 15 g
4 0
3 years ago
Read 2 more answers
If 24, x, and 6 form the first three terms of an arithmetic sequence
AveGali [126]
<h3>Answer:  15</h3>

===============================================

Work Shown:

d = common difference

p = first term = 24

q = second term = a+d = 24+d

r = third term = q+d = 24+d+d = 24+2d = 6

------------

Solve for d

24+2d = 6

2d = 6-24

2d = -18

d = -18/2

d = -9

We add -9 to each term to get the next term. This is the same as subtracting 9 from each term to get the next term.

------------

First term = 24

Second term = 24-9 = 15

Third term = 15-9 = 6

We get the sequence 24, 15, 6

7 0
2 years ago
In a health club, research shows that on average, patrons spend an average of 42.5 minutes on the treadmill, with a standard dev
Paha777 [63]

Answer:

0.3114

Option d is right

Step-by-step explanation:

Let X be the time spent on a treadmill in the health club

Given that  research shows that on average, patrons spend an average of 42.5 minutes on the treadmill, with a standard deviation of 5.4 minutes

Also given that X is normal

the probability that randomly selected individual would spent between 30 and 40 minutes on the treadmill.

= P(30

round off to two decimals tog et

the probability that randomly selected individual would spent between 30 and 40 minutes on the treadmill is 0.31

Hence option d is right

3 0
3 years ago
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