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OlgaM077 [116]
3 years ago
11

How many inches is 21 cm

Mathematics
1 answer:
Scorpion4ik [409]3 years ago
4 0
21 cm is 8.28 inches.
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please help! Triangle PQR is in a coordinate plane. The triangle is reflected across the y–axis and then translated 11 units lef
Maurinko [17]

Step-by-step explanation:

Triangle PQR is in a coordinate plane. The triangle is reflected across the y–axis and

then translated 11 units left to form Triangle P'Q'R'. Determine which of the following statements must be true regarding this transformation. Select True or False for each statement.

Angle P has the same measure as angle P'. T or F

Angle Q has the same measure as angle R'. T or F

Angle R has the same measure as angle R'. T or F

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3 years ago
Please help simplify 5y + 3 + 8y - 2
expeople1 [14]

Answer:

13y + 1

Step-by-step explanation:

8y + 5y = 13y

3 - 2 = 1

13y + 1

4 0
3 years ago
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1. Jill had the following scores on quizzes. 1 quiz: 1 3 quizzes: 2 4 quizzes: 3
Irina-Kira [14]
The mean score is 3.08.

There is 1 quiz with score 1, so 1 point; 3 quizzes with score 2 for 3*2 = 6 points; 4 quizzes with score 3 for 4*3 = 12 points; 4 quizzes with score 4 for 4*4 = 16 points; and 1 quiz with score 5 for 5 points.

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7 0
3 years ago
Please help me
yKpoI14uk [10]

9514 1404 393

Answer:

  A)  5x+12 = -12x-12

  D)  5x+12 = -5x-12

Step-by-step explanation:

If you subtract the right side expression from both sides, you will get an equation with something equal to zero. If the 'something' has a variable in it, there is exactly one solution.

A: (5x+12) -(-12x-12) = 17x+24 = 0 . . . one solution

B: (5x+12) -(5x-5) = 17 = 0 . . . . no solutions

C: (5x+12)-(5x+12) = 0 = 0 . . . . infinite solutions

D: (5x+12) -(-5x-12) = 10x +24 = 0 . . . one solution

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3 years ago
Which of the following describes the end behavior of y = -x^2+bx+c as x approaches either positive or negative infinity?
Pavlova-9 [17]
The end behavior model of y is -x^2.
As x approaches either positive or neg infinity, -x^2 will always be negative.
Thus, "B) y approaches neg infinity" is the correct one. 
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3 years ago
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