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jeyben [28]
2 years ago
15

Can someone help me with this page

Mathematics
1 answer:
Ksju [112]2 years ago
7 0
The first one is A. Number 2 is d. Number 3 is b because 20x20=400 and 21x21=441 and when you add them together you get 841 or 29x29. Number 4 is b because complementary angles are also right angles, they have to add up to 90 degrees. Number 5 is a because every angle is less than 90 degree. Number 6 is 30 because 60+90+x = 180 and when you solve for x you will get 30 degrees.
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An item is regularly priced at $80 . It is on sale for 20% off the regular price. How much (in dollars) is discounted from the r
Mazyrski [523]

80 * .20=16

It is 16 dollars off the regular price


3 0
3 years ago
In the isosceles trapezoid below,<br> X =<br> 5x+ 15°<br> 7x-11°
tangare [24]

Answer:

x = 13°

Step-by-step explanation:

5x+15°=7x-11°

5x-7x = -11°-15°

-2x = -26° divide both sides by -2

x = 13°

5x+15° = 5×13°+15° = 80°

7x-11° = 7×13° -11°. = 80°

6 0
1 year ago
Percent error that is greater than 20% but less than 50%
NNADVOKAT [17]

Answer:

30 40 percent

Step-by-step explanation:

it is less that 50

3 0
3 years ago
Read 2 more answers
Ms. Reynold's sprinkler system has 5 stations that water all parts of her front and back lawn. Each station runs for an equal am
mina [271]

Answer: 40 minutes

Step-by-step explanation:

It takes 16 minutes for the first 2 stations to water their sections which means that the time taken per station is:

= 16/2

= 8 minutes per station

Ms. Reynolds has 5 stations.

Total time taken will therefore be:

= 8 * 5

= 40 minutes

3 0
2 years ago
Mel is 3 years older than Rahfat and Aurelio is twice as old as Mel. The sum of their ages is 57. How old is Mel.
julia-pushkina [17]
Mel's Age = xRahfat's Age = x-3Aurelio's Age = 2x 2x + x +x -3 = 574x -3 = 574x = 60x = 15So Mel's age is 15.Hope this helps! :D
3 0
2 years ago
Read 2 more answers
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