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Vinil7 [7]
3 years ago
7

Find the sum of the first 20 terms

Mathematics
1 answer:
Dennis_Churaev [7]3 years ago
7 0

Answer:20.5

Step-by-step explanation:

1.5+1.45+1.40+1.35+1.30+1.25+1.20+1.15+1.10+1.05+1.00+0.95+0.90+0.85+0.80+0.75+0.70+0.65+0.60+0.55=20.5

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These dot plots show the heights (in feet) from a sample of<br> two different types of elephants.
mafiozo [28]

Answer:

C

Step-by-step explanation:

Because that's what I think

6 0
4 years ago
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Determine the standard form of the equation of the line that passes through (-2, 0) and (-8,5)
Naya [18.7K]

Answer:

-5x-6y=10      ←   in standard form

Step-by-step explanation:

The equation of a line in  standard form  is.

Ax+By=C

were

  • A is a positive integer and
  • B, C are integers

As the equation in  point-slope form

y-y_1=m\left(x-x_1\right)

where m is the slope and \left(x_1,\:y_1\right)  is a point on the line.  

as

\mathrm{Slope\:between\:two\:points}:\quad \mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}

\left(x_1,\:y_1\right)=\left(-2,\:0\right),\:\left(x_2,\:y_2\right)=\left(-8,\:5\right)

m=\frac{5-0}{-8-\left(-2\right)}

m=-\frac{5}{6}

using   m=-\frac{5}{6}  and \left(x_1,\:y_1\right)=\left(-2,\:0\right)  then

y-0=-\frac{5}{6}\left(x-\left(-2\right)\right)

-\frac{5}{6}\left(x-\left(-2\right)\right)=y-0

6\left(-\frac{5}{6}\left(x-\left(-2\right)\right)\right)=6y

-5\left(x+2\right)=6y

-5x-10=6y

-5x-6y=10      ←   in standard form

8 0
3 years ago
Ben can type 25 words in half a minute. At this rate, how many words can he type in 5 minutes? A student found the unit rate and
Brrunno [24]
25 in 1/2minute
10 1/2 minutes in 5 minutes

25*10=250

Hope this helps :)
7 0
3 years ago
Read 2 more answers
Please please need help with this one having a hard time with it.
laiz [17]
Ummmmmm where’s the pic?
4 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
4 years ago
Read 2 more answers
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