A student estimated the sum

Mathematics

2 answers:

Natasha_Volkova [10]3 years ago

6 0

Answer:

i don"t know if it right but i got 183.275

Step-by-step explanation:

i looked up the answer

m_a_m_a [10]3 years ago

4 0

It is incorrect because if those decimals were to be added together it would provide a different number

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Please help with math question below

jasenka [17]

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4 years ago

The school cafeteria offered a choice of pizza or nachos to sixth-grade students. Seventy-seven students chose pizza.This repres

romanna [79]

77= 35%

11= 5%

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3 years ago

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natima [27]

Has form - last two
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3 years ago

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It is known that x=7 is a root of the equation ax^2 + bx + 2= 0, where a<0. Solve the inequality ax²4 +bx^2 + 2>0.

kap26 [50]

Answer:

2/(7a) < x < 7

Step-by-step explanation:

The product of roots of ax² +bx +c is c/a. In this case, that means the second root of the equation is ...

... 2/(7a)

Since a < 0, the parabola opens downward and 2/(7a) < 0. The quadratic function will be positive between the two roots, on the interval ...

... 2/(7a) < x < 7

7 0

4 years ago

A jar contains two blue and five green marbles. A marble is drawn at random and then replaced. A second marble drawn at random.

DerKrebs [107]

corrected question:A jar contains two blue and five green marbles. A marble is drawn at random and then replaced. A second marble drawn at random. For each of the following, find the probability that: a) both marbles are blue b) both marbles are the same color c)the marbles are different in color

Answer:

Step-by-step explanation:

<u><em>The probability was done with replacement.</em></u>

Probaility of an event happening $=\frac{number of required outcomes}{number of possible outcomes}$