Efectueaza: (365x 48 - 279 x 56 - 132 x 14) x 235 - 169 x 65 =
(362 x 98 - 247 x 89 - 286 x 45) x 89 - 615 x 89 =
(489 x 75 - 564 x 38 - 274 x 29 + 134 x 26) - 489 x 19 =
(167 x 98 + 248 x 37 - 425 x 59) x 38 - 542 x 32 =

Este 6:00 PM!

828. all there is to it!

here, if you ever need with rounding (or other forms of arithmetic/math) again, use this:

thats the rounding one, but if you just click the top left, it shows you all the calculators you may need!

step-by-step explanation:

b and c

well we know there are 4 clubs in 52 cards so it’s replaced so it should be 3/51

step-by-step explanation:

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

click to let others know, how is it

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