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Otrada [13]
3 years ago
13

find the area of an isosceles trapezoid that has bases with lengths of 20 and 30 and legs of length 13

Mathematics
1 answer:
ahrayia [7]3 years ago
8 0

Answer:

325

Step-by-step explanation:

A = .5(b1+b2) h

.5 (20 + 30) 13

325

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a gym teacher has a large canvas bag that contains 8 tennis balls, 2 volleyballs, 1 basketball, 3 baseballs, and 5 footballs. if
Serga [27]

Answer:

Step-by-step explanation:

5+1+3+8+2=19

3/19 = 16%

6 0
2 years ago
One of the tables shows a proportional relationship.
beks73 [17]

Answer:

See attached

Step-by-step explanation:

The graph of a <u>proportional linear relationship</u> is a line that <u>passes through the origin</u> (0, 0).

From inspection of the given tables, the <u>linear equations</u> for each table of points is:

  • Table 1:  y = x + 1
  • Table 2:  y = x/2
  • Table 3:  y = x + 2
  • Table 4:  y = 2x + 1

The only equation for which y = 0 when x = 0 is y = x/2  →  Table 2.

Given points from Table 2:

  • (2, 1)
  • (4, 2)
  • (6, 3)
  • (8, 4)

To <u>graph the line</u>, plot the given points and draw a line through them (see attached).

5 0
2 years ago
The figure is the net for a rectangular prism.
Dovator [93]
The surface area of the rectangular prism is 544 cm^2.

There are 3 pairs of different rectangles that form the rectangular prism.

If we find the area of each and add them up, we will have the surface area.

Here are the 3 pairs of rectangles:
6 x 16 = 96
8 x 16 = 128
6 x 8 = 48

2(96) + 2(128) + 2(48) = 544
4 0
3 years ago
Can someone helps me ​
ale4655 [162]

Answer:

the answer is

  1. \times  + 4 \sqrt{ { \times 3 - 10}^{?} }

6 0
3 years ago
Worker A finishes the job in 10 hours; worker B finishes it in 12 hours, and worker C finishes it in 15 hours.
nika2105 [10]
A=1/10, b=1/12, c=1/15  (these are the rates for each worker...)

1.)

2(1/10)+4(1/12)+t/15=1

1/5+1/3+t/15=1

(3+5+t)/15=1

3+5+t=15

8+t=15

t=7

So it would take c 7 hours to finish the job.

2.)

1/40-1/60

(3-2)/120

1/120

The drain rate is 1/60.  So you will need to find t when the tank is empty, while starting at 2/3 capacity...

2/3-t/60=0

(40-t)/60=0

40-t=0

t=40

It would take 40 minutes to empty the tank when it is 2/3 full.
5 0
4 years ago
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