3 years ago

Find the area of a square with a perimeter of 45cm

Mathematics

1 answer:

Stolb23 [73]3 years ago

8 0

Answer:

the area for the square is 126.56cm²:

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A bag contains:

Lady bird [3.3K]

Answer:

3/50

Step-by-step explanation:

There are 5 + 4 + 2 + 6 + 3 = 20 marbles in the bag

P(draw a black) = 6/20 = 3/10

If the black marble is replaced, then there are 20 marbles in the bag again.

P(draw a blue) = 4/20 = 1/5

P(draw a black and blue with replacement) = (3/10)(1/5) = 3/50

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3 years ago

QR = 36 ; PR = 45 ; PQ = 21, Sin __?___ = 21 / 45

sammy [17]

Answer:

Sin = PQ / PR = OPPOSITE / HYPOTENUSE

Step-by-step explanation:

Please find the attached file for a clearer understanding.

SOHCAHTOA

Sin = opposite / Hypotenuse

Cos = Adjacent / Hypotenuse

Tan = opposite / Adjacent

Math is fun

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What is the mean of the data set?

olga nikolaevna [1]

Answer:

183

Step-by-step explanation:

125+141+213+155+281=915

915 divided by 5=183

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Find the slope of the line that contains the following pair of points. (3, 4) (3, -7)

mojhsa [17]

Negative 3 is the answer

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Kari estimated the quotient of -12 1/5 divided by 4 2/5 to be -8. Which best describes her error?

liubo4ka [24]

Answer:

She divided wrong

Step-by-step explanation:

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