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2 years ago

I can't figure this out

Mathematics

2 answers:

Lerok [7]2 years ago

6 0

10x22 and then divide by 3.14
So the answer is 70

EastWind [94]2 years ago

3 0

I need help with this same problem too , can someone please help us be

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Is 6+2 +4x equivalent to 6- ( 2-4x) . if not , why not ?

Xelga [282]

Well lets solve for both.
6 + 2 + 4x
Combine like terms.
8 + 4x
Now solve the other one.
6 - (2 - 4x)
Distribute.
6 - 2 + 4x
Combine like terms.
4 + 4x.
These equations are not equivalent because instead of adding two, like in the first one, the second problem is subtracting. So you get 8 + 4x and 4 + 4x. I hope this helps love! :)

6 0

3 years ago

A survey was taken of students in math classes to find out how many hours per day students spend

Hoochie [10]

Answer:

1. Mean, because there are no outliers that affect the center

Step-by-step explanation:

Second period: 3,2,3,1,3, 4, 2, 4, 3, 1, 0, 2, 3, 1, 2

Sorted values : 0, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4

The mean = ΣX / n

n = sample size, n = 15

Mean = 34 / 15 = 2.666

The median = 1/2(n+1)th term.

1/2(16)th term = 8th term.

The 8th term = 2

The best measure of centre is the mean because the values for the second period has no outliers that might have affected the centre of the distribution.

Both interquartile range and standard deviation are measures of spread and not measures of centre.

6 0

2 years ago

Please help! A is not -3 as I’ve seen some answer with that.

Arte-miy333 [17]

Answer:

a) x = 5

b) x = 4

Step-by-step explanation:

a) $\frac{3x+4}{2}$ = 9.5

3x+4 = 9.5(2)

3x = 19-4

x = 15/3

x = 5

b) $\frac{7+2x}{3}$ = 5

7+2x = 5(3)

2x = 15-7

x = 8/2

x=4

6 0

2 years ago

Which is true about the polynomial -8m3 11m?O It is a binomial with a degree of 2.O It is a binomial with a degree of 3.O It is

koban [17]

-8m^3 + 11m....notice that it has 2 terms....(-8m^3) and (11m). Having 2 terms makes it a binomial...if it would have had 3 terms, it would have been a trinomial. If it has only one variable, the degree is the highest exponent...so this has a degree of 3 since ^3 is the highest exponent.
so ur answer is : binomial with a degree of 3

3 0

2 years ago

Read 2 more answers

7.12 Equations quiz answers for k12

Darya [45]

Answer:

7.12 equations? K12? whats that

5 0

3 years ago