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const2013 [10]
3 years ago
9

What is a perfect square? Give some examples.

Mathematics
1 answer:
Romashka [77]3 years ago
6 0
Is an integer that is the square root of an integer ex 4 which can be written 2times 2
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Find the difference.
PSYCHO15rus [73]
D how much randall occured in january?
8 0
3 years ago
Solve the system by substitution!
irga5000 [103]
When solving by substation the answer would be: X= 1 , y= 5
3 0
3 years ago
Samuel made a list of his test scores: 88, 100, 92, 80, 85, 94, and 90. What is the lowest test score he can get on his next tes
yulyashka [42]

Answer:

he needs to get a 91 to have a mean score of 90

Step-by-step explanation:

add up all the known scores to get 629

let 's' = lowest test score

(629 + s) ÷ 8 = 90   [we divide by 8 because there are 7 known and 1 unknown score)

cross-multiply to get:

629 + s = 720

s = 720-629

s = 91

4 0
3 years ago
The solution to a system of equations is (6-3). Choose two equations that might make up the system. Y= -3x+6 Y=2x-9 y=-5x+27 y=2
MakcuM [25]

Answer:  C) y = -5x + 27     and       D) y = 2x - 15

<u>Step-by-step explanation:</u>

Substitute x = 6 and y = -3 into each of the given equations to see which result in a TRUE statement.

A) y = -3x + 6

  -3 = -3(6) + 6

  -3 = -18 + 6

  -3 = -12     FALSE

B) y = 2x - 9

  -3 = 2(6) - 9

   -3 = 12 - 9

   -3 = 3     FALSE

C) y = -5x + 27

  -3 = -5(6) + 27

  -3 = -30 + 27

  -3 = -3    TRUE!

D) y = 2x - 15

  -3 = 2(6) - 15

  -3 = 12 - 15

  -3 = -3    TRUE!

E) y = -4x + 27

  -3 = -4(6) + 27

  -3 = -24 + 27

  -3 = 3   FALSE

6 0
3 years ago
Which statement describes a parallelogram that must be a square? A parallelogram with perpendicular diagonals. A parallelogram w
vichka [17]

Answer:

A parallelogram with diagonals that are congruent and opposite sides that are congruent.

Step-by-step explanation:

A square is defined as having all sides equal, and its interior angles all right angles (90°). From this it follows that the opposite sides are also parallel.

7 0
3 years ago
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