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3 years ago

3-9x=6×7x(10÷5(4+3³)+2x)

Mathematics

1 answer:

nasty-shy [4]3 years ago

5 0

Answer:

871 - \sqrt(758753)) (56) (871+\sqrt(758753)) (56) decimal form: 0.00114806, -31.0829092

Step-by-step explanation:

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Simplify -2(4f+6)+3(4f-6)

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3 years ago

Sammy has a rectangular doormat on her porch. The mat is \dfrac45\text{ m} 5 4 mstart fraction, 4, divided by, 5, end fraction

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Answer:

Area of the rectangular doormat = 2/5 m²

Step-by-step explanation:

Length of the rectangular doormat = 4/5m

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3 years ago

Orlando is measuring the angles of a triangle. He measures the first two angles and gets 30° and 70°. What should be the measure

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Probability extension: Jerry did only 5 problems of one assignment. What is the probability that the problems he did comprised t

zimovet [89]

Answer:

(b) 1/792

Step-by-step explanation:

The complete question is;

Counting: Grading One professor grades homework by randomly choosing 5 out of 12 homework problems to grade.

(a) How many different groups of 5 problems can be chosen from the 12

problems?

(b)Probability extension: Jerry did only 5 problems of one assignment. What is the probability that the problems he did comprised the group that was selected to be graded?

In (a)

Apply the formula

$\frac{n!}{(n-r)!(r!)}$

where n=12 and r=5

substitute values

$=\frac{12!}{(12-5)!(5!)} \\\\\\=\frac{12!}{(7!)(5!)} \\\\\\=\frac{12*11*10*9*8}{5*4*3*2*1} \\\\\\=\frac{95040}{120} \\\\\\=792$

In (b)

If Jerry did only 5 problems of one assignment then the probability will be

$\frac{5}{12} *\frac{4}{11} *\frac{3}{10} *\frac{2}{9} *\frac{1}{8} =\frac{1}{792}$

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4 years ago

3-9x=6×7x(10÷5(4+3³)+2x)​

3-9x=6×7x(10÷5(4+3³)+2x)