All categories

2 years ago

HIGH POINTS!!!

Mathematics

1 answer:

aivan3 [116]2 years ago

7 0

Answer:

Step-by-step explanation:

The median is the middle point in a data set. Looking at the graph, we can see that this middle point is at 84.

Eliminate A and B because they don't include 84.

Standard deviation is basically a measure of how the data is distributed. Looking at the graph, we can see that each tick mark is 6 degrees apart, which indicates that the standard deviation is 6.

The answer is C.

You might be interested in

The plane that passes through the point (-2,2,0) and contains the line with symmetric equations x=y=2z

ehidna [41]

Answer:

I want to help you but I'm trying to sign into to brainy and I have to answer someone, sorry for being a noucance

3 0

1 year ago

Which of the following expressions is equivalent to a3 + b3?

lubasha [3.4K]

ANSWER
${a}^{3} + {b}^{3} = (a + b)( {a}^{2 } - ab + {b}^{2} )$

EXPLANATION

To find the expression that is equivalent to
${a}^{3} + {b}^{3}$
we must first expand
${(a + b)}^{3}$
Then we rearrange to find the required expression.

So let's get started.

${(a + b)}^{3} = (a + b) {(a + b)}^{2}$

We expand the parenthesis on the right hand side to get,

${(a + b)}^{3} = (a + b) ( {a}^{2} + 2ab + {b}^{2} )$

We expand again to obtain,

${(a + b)}^{3} = {a}^{3} + 3 {a}^{2}b + 3a {b}^{2} + {b}^{3}$

Let us group the cubed terms on the right hand side to get,

${(a + b)}^{3} = {a}^{3} + {b}^{3} + 3 {a}^{2}b + 3a {b}^{2}$

${(a + b)}^{3} = {a}^{3} + {b}^{3} + 3ab (a+ b)$

We make the cubed terms the subject,

${(a + b)}^{3} - 3ab (a+ b) = {a}^{3} + {b}^{3}$

We factor to get,

$(a + b)({(a + b)}^{2} - 3ab ) = {a}^{3} + {b}^{3}$

We expand the bracket on the left hand side to get,

$(a + b)( {a}^{2} + 2ab + {b}^{2} - 3ab ) = {a}^{3} + {b}^{3}$

We finally simplify to get,

$(a + b)( {a}^{2} - ab + {b}^{2} ) = {a}^{3} + {b}^{3}$

5 0

2 years ago

Read 2 more answers

NEED HELP ASAP!!!

patriot [66]

1.-7/4
2.1/7
3.-5/3
4.1/2
5.neither a parallelogram nor a trapezoid
6.neither pair of opposite sides is parallel

hope this help any one who need the answer <span />

8 0

3 years ago

Which expression represents a factorization of 63 − 18?\

Evgesh-ka [11]

Answer:

Step-by-step explanation:

5+5=20

7 x 1 =78

78=9090

90900-5967=5676

harry should end with 5 tomatoes

4 0

2 years ago

See attachment, answer please.

Anton [14]

Answer:

4.5

Step-by-step explanation:

6 0

2 years ago