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topjm [15]
3 years ago
7

Is 10x is polynomial or not?

Mathematics
1 answer:
Inga [223]3 years ago
6 0

Answer:

Yes, 10x is a polynomial.

Step-by-step explanation :

In particular, for an expression to be a polynomial term, it must contain no square roots of variables, no fractional or negative powers on the variables, and no variables in the denominators of any fractions. That's why 10x is a polynomial because it obeys all the rules.

Hence, 10x is a polynomial.

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Line segment ab has endpoints a(9, 3) and b(2, 6). find the coordinates of the point that divides the line segment directed from
Dominik [7]
When we are to divide the line segment such that the ratio is 1:2, there are actually 3 parts of the segment. First, we determine the distance between the coordinates and divide the distance by 3. Then, we add the quotient to the x-coordinate.

x-coordinate:    (2 - 9) / 3 = -7/3
y-coordinate:    (6 - 3 ) / 3 = 1

Adding them to the coordinates of a,
           x - coordinate: (9 - 7/3) = 20/3
           y - coordinate: (3 + 1) = 4
Thus, the coordinates are (20/3, 4). 
7 0
3 years ago
MATH HELP ASAP PLEASE
Nataly [62]

Answer:

53lbs

Step-by-step explanation:

if he bought three bags of gravel that are 20 lbs. each then he would have 60 lbs. of gravel. In the end he only had 7 pounds left so you would subtract 7 from 60 and get 53 pounds.

7+x=60 or 60-7=53

i hope this helped!

5 0
3 years ago
2. In 2010, the population of a town is 8500. The population decreases by 4.5% each year.
Korvikt [17]
This exponential growth/decay (in this case decay because r<1) of the form:

f=ir^t, f=final value, i=initial value, r=common ratio or "rate", t=time.

Since the population decreases by 4.5% each year the common ratio is:

r=(100-4.5)/100=0.955 so we can say

P(t)=8500(0.955^t)  

....

7000=8500(0.955^t)

14/17=(955/1000)^t  taking the natural log of both sides

ln(14/17)=t ln(955/1000)

t=ln(14/17)/ln(955/1000)

t≈4.22 years (to nearest hundredth of a year)

Since t is the years since 2010, the population will fall to 7000 in the year (2010+4.22=2014.22, more than four years will have elapsed) 2015.
5 0
3 years ago
In a certain city, 80 percent of the households have cable television and 60 percent of the households have videocassette record
alexandr1967 [171]

Answer:

60,000

Step-by-step explanation:

Let the total people in the household be 100%

If 80 percent of the households have cable television, 60 percent of the households have videocassette recorders and the number of households that have both cable television and videocassette recorders is 'x' percent. The number of households having ONLY cable television will be 80-x while households having ONLY videocassette will be 60-x.

To get x, we will have;

80-x + 60-x + x = 100

140-x = 100

x = 140-100

x = 40

This shows that 40% of the households have both cable television and videocassette.

If there are 150,000 households in the city, then the number of households that have both cable television and videocassette recorders could be 40% of 150,000

= 40/100 × 150,000

= 60,000

Number of households that owns both television and videocassette could be from 60,000.

3 0
3 years ago
Read 2 more answers
A cheetah ran 300 feet in 2.92 seconds . What was the cheetah's average speed in miles per hour ? Show your work .
vivado [14]
Cheetah ran 300 feet in 2.92 seconds.

Average speed in miles per hour.

Converting 300 feet to mile.
5280 feet  =  1 mile
1 feet    =    (1/5280) mile
300 feet =    (1/5280) * 300 = (300/5280) = (30/528) = (10/176) mile.

2.92 seconds to hour.
3600 seconds  =    1 hour
1 second          =  (1/3600) hour
2.92 seconds    =    2.92 * (1/3600) =  (2.92/3600) hour.

Speed of Cheetah in miles per hour =    (10/176) mile  /  (2.92/3600) hour
                                                     =  70.05 miles/hour
3 0
3 years ago
Read 2 more answers
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