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qwelly [4]
4 years ago
6

Please help me out with solving these problems.​

Mathematics
1 answer:
timama [110]4 years ago
7 0

Answer:

2l^2 + 2m^2 + 2n^2 + 2nl + 2lm + 2mn

Second one's answer ^

<em><u>Not sure about that first one..</u></em>

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Find the mean, median, and mode of the following set of data:<br> {5, 7, 4, 7, 6, 7}
Xelga [282]

Answer:

Mean = 6

Median = 6.5

Mode = 7

Step-by-step explanation:

4, 5, 6, 7, 7, 7,

Mean: Add all numbers then divide by numbers added

36/6 = 6

Median: Number in the middle

6 + 7 = 13 13/2 = 6.5

Mode: The number that appears most often in a set

there are 3 sevens

7 0
3 years ago
Sam opened a money-market account that pays 2% simple interest. He started the account with $7,000 and made no further deposits.
Pavlova-9 [17]
3 years
ar(n)=total a is the first number which is 7000 r is the common ratio which is 100%+2%=102 102 divided by 100 giving u 1.02(interest) so ar(n)=sum n is written as power.....and is the number of years so 7000*1.02(n)=(7000+420) 1.02(n)=7420/7000 1.02(n)=1.06 log10 1.02(n)=log10(1.06) ( multiply log10 with both) n=log10(1.06)/log10 (1.02) u get 2.94 which is round off to 3 so 3 years.. hope This helps :)
8 0
3 years ago
Which situation leads to a unit cost of $6 per football ticket? *
Alborosie

Answer:

12 football tickets for $72

Step-by-step explanation:

you do 72 divided by 12 and you get 6.

6 0
3 years ago
Read 2 more answers
Estimate the result by rounding the numbers to the second decimal before performing the operation. Then also round your answer t
umka2103 [35]

Answer:

40615

Step-by-step explanation:

Note, rounding off decimals involves observing if the said decimal is up to the value of 5. If it is, then it can be rounded up, if not, its rounded off.

Since we need to round the numbers to the second decimal before performing the operation, we will have, 8123÷0.2

Note, 8123 has no decimal so we ignore

But 0.211 has a second decimal which is the first 1 so because it's not up to 5, we round it off to 0.

Hence we have 8123 ÷ 0.2= 40615.0

Since our answer has no decimal, we leave it like that.

8 0
3 years ago
Read 2 more answers
Graph a line with a slope of -3 that contains the points (4,-2)
Lera25 [3.4K]

Answer:

  see below for a graph

Step-by-step explanation:

To draw a graph on a grid, locate the point (4, -2) and use the slope to find another point. One such point will be 1 to the left and up 3*, at (3, 1). With two points, you can draw the line through them to complete the graph.

__

For a graphing tool that requires an equation, the point-slope form of the equation can be used:

  y -k = m(x -h) . . . . . a line of slope m through point (h, k)

For the given slope and point, the equation of the line is ...

  y +2 = -3(x -4)

  y = -3x +10

_____

* The slope is "rise" over "run". The slope of -3 means that a <em>run</em> of +1 will result in a <em>rise</em> of -3. The given point is already below the x-axis, so we don't really want to find more points farther down. In order to go up on a line with negative slope, we must choose a point to the left of the given one.

3 0
4 years ago
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