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3 years ago

Need help with this answer

Mathematics

1 answer:

ioda3 years ago

3 0

Answer:

(2,2) is your answer :)

Step-by-step explanation:

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15 points!! Please help

natima [27]

Answer:

see below

Step-by-step explanation:

106

The tens place is the 0, so we look at the ones place

Since 6 is 5 or greater we round the tens place up

0 will round to 1, and the ones places goes to 0

106 rounds to 110

We need a number less than 180 that will round up to 180 from the tens place

We look at the tens place, it has to be less than 8 by 1

17 x

The number must be 5 or greater to round the 7 up to 8

175, 176, 177, 178, 179 will work

We need a number greater than 180 that will round down to 180 from the tens place

We look at the tens place, it has to be equal to 8

18 x

The number must be 4 or less to leave the 8 alone

180, 181, 182, 183, 184

6 0

4 years ago

2/3 divided by 5<br> Send help for me please

charle [14.2K]

Answer: 0.13

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Write -1/19, 7/14,-4/7 in order from least to greatest

Maru [420]

Answer:

Step-by-step explanation:

7 0

3 years ago

A printer needs to make a poster that will have a total of 500 cm2 that will have 3 cm margins on the sides and 2 cm margins on

goblinko [34]

Answer:

The largest printed area is 381.43 cm^2 .

Step-by-step explanation:

The width of the full poster = 500/x

Length of the printed area = l =x - 4

Width of the printed area = w = (500/x) - 2

Area of the printed space = (x - 4) × ((500/x) - 2)

Now, take derivative of the area

A' = (x - 4)×(-500/x^2) + ((500/x) - 2)

A' = (2000/x^2) - 2

A' = (2000-2x^2) / x^2

put derivative equal to zero like A' = 0

(2000-2x^2) / x^2 = 0

2000 = 2x^2

x^2 = 1000

x = 31.62

So, the length of the original poster is = x = 31.62 cm

The width of the full poster = 500/x = 15.81 cm

l = x - 4 = 27.62

w = 500/x - 2 = 13.81

Therefore, The area of space available for printing is = l × w

= 27.62 × 13.81 = 381.43 cm^2 .

5 0

3 years ago

The distribution of raw scores on a particular achievement test has a mean of 500500500 and a standard deviation of 808080. If e

Troyanec [42]

Answer:

Mean will increase by 25 i.e. it will become 75.

And, Standard deviation will remain same i.e. 80.

Step-by-step explanation:

Since, Each score is increased by 25. So, the Mean will increase by 25 i.e. it will become 75. Example: Mean of {4, 5, 6, 7, 8} = 6

and if every observation will increase by 2 then Mean of {6, 7, 8, 9, 10} = 8.

Thus, the Mean will also increase by 2.

Also, Standard deviation measures the dispersion(scatter) of data and it is the distance from the mean. Since there is no change in distance. Thus there will be no change in standard deviation.

Further, Mean is used to measure the central tendency of data which represents the whole data in the best way. It can be found as the ratio of the sum of all the observations to the total number of observations.

Standard Deviation is the square root of the sum of square of the distance of an observation from the mean.

6 0

3 years ago