Notice in this row, we’re multiplying by 3 each time

to get the next number.

81 * 3 = 243

Bottom 25%

Top 25%

Median

3(2x-5) = 4(x+3)

6x-15 = 4x+12-4x -4x

2x-15 = 12+15 +15

2x = 27

The figure can can be divided into 3 non-

overlapping triangles.

The angles in a triangle add up to 180 degrees, so the

entire shape would have 540 degrees.

180 * 3 = 540

These three right angles make up 270 degrees, so

we’ll subtract that from our total.

540- 270 270

Since these two angles add up to 270, the missing angle would

be 150.

9/20 = 45%52%

55,000/130,000 = 42.3%

Poll #2 shows the most favorable

result for Candidate A.

POSITIVEPOSITIVEPOSITIVEPOSITIVE NEGATIVENEGATIVENEGATIVENEGATIVENEGATIVENEGATIVENEGATIVENEGATIVENEGATIVENEGATIVE

Since the MEDIAN is the MIDDLE number, we can cross off the

highest and lowest numbers until we reach it.

(Remember, when we say “MIDDLE” number, the numbers

have been arranged in order from greatest to least!)

The fastest rate of travel occurs when the slope of the graph is the

steepest.

When expressing a number in scientific notation, the first value must be between 1

and 10.

Choice C is the only one that

works all 6 times.

15 = (4)2 - 115 = 16 - 1

15 = 15

For example…

D

E

FD’

E’

F’

D’ = (1,-1) E’ = (4, 3) F’ = (5, 1)

D”

E”

F”

D’’ = (-1, 6) E’’ = (2, 10) F’’ = (3, 8)

The same result could be obtained through a single translation of DEF by moving each vertex one unit right and

five units up.

“Irrational” means CANNOT be written as a

fraction.

This already is a fraction.

These can easily be made into fractions by writing them with a “1” in the

denominator.

This means “less than or

equal to $300”.Since the skates,

lessons, and practice time are all COSTS, they’ll have to

be ADDED together.

A cone contains a

circular face.A cube doesn’t

contain a triangular

face, but our shape has

one.

Prisms have two faces

which must be parallel to each other. Our shape

has no parallel faces.

E = 15m + 5b

They want us to solve for b.

E = 15(6) + 5b200 = 15(6) + 5b200 = 90 + 5b

110 = 5b22 = b

Consider a state with a small area, like Rhode Island. Florida contains about thirty times more

land than Rhode Island, but Florida may only have fifteen times as many people as Rhode

Island.

In this example, Rhode Island has a smaller overall population. It’s population density,

however, is about twice that of Florida!

Obviously, you’re not

going to survey the faculty to

pick dance music!!!

If you survey nothing but freshmen, you’re

not getting a true cross-section of the school. You don’t

really have any idea of what the

upperclassmen might want to hear.

The captains of sports teams represent students who are

heavily involved in athletics. This may not

paint an accurate picture of what the rest of the school listens to.

Also, team captains tend to be

upperclassmen, so freshmen and

sophomores would not be represented equally.

By randomly choosing two people from each

homeroom, every student in the school has the same opportunity to be selected for the survey, regardless of who they are or what

they do.

If the radius is 4 inches…

Then the diameter is 8

inches…

And the height is 2 inches…

The cross-section is a rectangle.

8”2

”

3x + 2y = 192x - 1y = 12 ( )

Multiplying the second equation by 2

will cause the “y” terms to cancel each

other out.

3x + 2y = 194x - 2y = 2

7x + 2y = 21x = 3

To find y, plug the x back into one of the original equations…

2(3) - y = 1 6 - y = 1

y = 5

(100 pieces)

Candy bag

There used to be 100 pieces of candy. Now, there are only 95 left.

There used to be 15 blue pieces. Now there are only 13

blues.

95

The probability of pulling out a blue candy now is 13/95

(or .13684)

This presentation brought to you by

Mr. Jeff LuceBBHHS Mathematics Dept.

Good luck & have a nice day!!!