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Lelu [443]
3 years ago
13

Please help me solve this problem... I will mark you brainliest

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

Answer:

As the wheel makes this 270 degree counterclockwise rotation about the origin, the y-coordinate of the first car decreases from 80 to 0 and then further from 0 to -80, and finally increases to 0.

The x-coordinate decreases from 0 to -80 and then increases to 0; from there it increases further to 80.

Thus, the coordinates of the first car, after this 270-degree rotation, are (80, 0).

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Help! Due soon!!!!!!!!!
denis23 [38]

Answer:

78.75

Step-by-step explanation:

450 is increased by 75%

450 + 450*75%

Change to decimal form

450 +450*.75

450+337.5

787.5

Now decrease by 90%

787.5-787.5*90%

Change to decimal form

787.5-787.5*.9

787.5-708.75

78.75

8 0
2 years ago
Read 2 more answers
Which statement is true?
EleoNora [17]

Answer:

wish i can help

Step-by-step explanation:

3 0
3 years ago
Use an algebraic approach to solve the problem.
qaws [65]

Answer:

Her first exam score was a 78, her second exam score was a 89, and his third exam score was a 94.

Step-by-step explanation:

Use the formula for the mean: sum of elements / number of elements

Let x represent her first exam score.

Her second exam score can be represented by x + 11, since it was 11 points better than her first.

Her third exam score can be represented by (x + 11) + 5, since it was 5 points better than her second.

Plug in all of these expressions into the mean formula. Plug in 87 as the mean, and plug in 3 as the number of elements (since there are 3 scores):

mean = sum of elements / number of elements

87 =  ( (x) + (x + 11) + (x + 11) + 5 ) / 3

Add like terms and solve for x:

87 = (3x + 27) / 3

261 = 3x + 27

234 = 3x

78 = x

So, her first score was a 78.

Find her second score by adding 11 to this:

78 + 11 = 89

Find her third score by adding 5 to the second score:

89 + 5 = 94

Her first exam score was a 78, her second exam score was a 89, and his third exam score was a 94.

6 0
2 years ago
mark pays a $2 enterance fee and $0.75 every time he plays his favorite video game. If he has $17 , how many video games can he
Murrr4er [49]

Answer:

6 video games

Step-by-step explanation:

divide 17 by 2.75

5 0
3 years ago
The length of MN is 28 millimeters.
FinnZ [79.3K]

the answer should be 49mm

28*7 / 4 = 49

6 0
3 years ago
Read 2 more answers
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