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2 years ago

In which step does a mistake first occur? please help!

2 answers:

8 0

In step 1, you would have to do 3x3 first! And then subtract the 2!

So it would be
8 (divided) 2 + (3x3-2)

step 1: 8 (divided) 2 + (9-2)
step 2: 8 (div) 2 + (7)
step 3: 4 + 7
step 4: 11

Leya [2.2K]2 years ago

3 0

Answer:

step 1

Step-by-step explanation:

8÷2+(3x3-2)

8÷2+(9-2)

8÷2+(7)

4+7

=11

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Reader's workshop starts at 10:35am and ends at 11:28am. how many minutes is readers workshop?

Irina-Kira [14]

Readers workshop is 1 hr. 18 mins. if you don't want to put 1 hr. Than it will be 93 mins.

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3 years ago

Is 3x+4y=7 linear or nonlinear

Sloan [31]

Linear. It's in the form C= ax + by, so you back solve to get into the form you know is linear (y= mx + b). So using SADMEP (opposite of Pemdas) we can decide which order to solve for "Y=" in. 4y =7-3x. Y=((7-3X)/4). Y= 7/4 -3/4x. Y=-3/4x +7/4. Which is linear

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4 years ago

According to the U.S. Census Bureau, the mean of the commute time to work for a resident of Boston, Massachusetts, is 27.3 minut

Bond [772]

Answer:

By the Chebyshev Theorem, at least 75% of commuters in Boston has a commute time within 2 standard deviations of the mean

Step-by-step explanation:

Chebyshev Theorem

The Chebyshev Theorem can also be applied to non-normal distribution. It states that:

At least 75% of the measures are within 2 standard deviations of the mean.

At least 89% of the measures are within 3 standard deviations of the mean.

An in general terms, the percentage of measures within k standard deviations of the mean is given by $100(1 - \frac{1}{k^{2}})$ .

What minimum percentage of commuters in Boston has a commute time within 2 standard deviations of the mean

By the Chebyshev Theorem, at least 75% of commuters in Boston has a commute time within 2 standard deviations of the mean

7 0

3 years ago

Solve the nonlinear inequality. Express the solution using interval notation. -7<3-2x<-2

erastova [34]

Answer:

5/2<x<5

Step-by-step explanation:

-7<3-2x<-2

or -7-3<-2x<-2-3

or -10<-2x<-5

or -10/-2>x>-5/-2

or 5>x>5/2

or 5/2<x<5

Therefore, 5/2<x<5 is the solution.

7 0

3 years ago

Which expression can be used to check the answer to 56➗(-4)=-4?

Drupady [299]

Answer:

-14 × -4

Step-by-step explanation:

56 ÷ -4 = -4

To check your answer to a problem you will start with the answer you got when you divided times the answer to the problem, will give you the number you started with.

-14 × -4 = 56

8 0

3 years ago