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cestrela7 [59]
2 years ago
11

Does someone want to help me solve this problem

Mathematics
1 answer:
Hoochie [10]2 years ago
3 0

Answer:

(cx)2-(dy) 2

Step-by-step explanation:

Formula a2-b2= (a+b) (a-b)

By given formula

(cx)2 - (dy) 2 = (cx+dy) (cx-dy)

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Heather drew the scaled drawing of a train car shown below. She used the scale of 2 cm = 5 ft to complete the
lora16 [44]

Answer: c

Step-by-step explanation:

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3 years ago
A customer sent in a $230 check to pay off an overdue bill but failed to pay the interest that accrued over the 45 days after th
viva [34]
$230+($45x$0.42=248.90

That is the equation to solve it.
4 0
3 years ago
Which letter represents the maximum of the data set on the box plot? A B C E 25 30 35 40 45 50
Andre45 [30]

Answer:

E

Step-by-step explanation:

The maximum of the data set is the point to the far right.

Point E is the maximum

Point A is the minimum

Point C is the mean

7 0
3 years ago
A cylinder closed tin of radius r cm is made from 600cm2 tin sheet of metal.
Zarrin [17]

Answer:

Note:  The expression "h =300- pi r /pi r" would equate to 299, as written.  I find h = (300 - πr^{2} )/πr to be the equation for height.

Step-by-step explanation:

The total surface area of a sylinder is 2πr(h+r) where h is the height and r is the radius.  That consists of top and bottom disks, each with an area of πr^{2}, for a total of 2πr^{2}.  The side is a  continous sheet that has an area of 2πrh, where h is the height.  2πr is the circumference of the can, so the surface area of the side is 2πrh.

The total surace area of a closed cylinder is therefore 2πr^{2} + 2πrh.

2πr^{2} + 2πrh = 600

πr^{2} + πrh = 300

πrh = 300 - πr^{2}

h = (300 - πr^{2} )/πr

7 0
2 years ago
Use mental math to find the sum. <br> 80+40+170
MissTica

Answer:

290

Step-by-step explanation:

80+40=120

120+170=290

290

6 0
3 years ago
Read 2 more answers
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