Can somebody please help me again with my homework it’s hard for me

Mathematics

2 answers:

jeka944 years ago

8 0

Answer:

4. A. 8/10 or 4/5

B. see below

5. 11/4

6. B

Step-by-step explanation:

4. you are adding fractions

rides = 6/10

games = 2/10

farm = 1/10

on that graph in part a you could shade in 6 of those smaller (1/10) boxes with BLUE for rides, 2 of those (1/10) boxes with ORANGE for games, and 1 of the (1/10) boxes with GREEN for farm. now we can visually see what the fair looks like.

PART A. what fraction is games and rides? how many boxes are shaded with BLUE or GREEN? 8 of them. so the fraction is 8/10. then reduce to lowest terms (8 and 10 are divisible by 2, so divide both by 2) and that equals 4/5.

PART B. how many more rides sections that farm sections? we can look at the colors we added to it. there are 6 BLUE sections for rides and there is only 1 GREEN section for farms. Find the difference, there are 5 more BLUE sections than GREEN sections so we know there are 5 more rides than farms.

5. we are looking for an improper fraction, that is where the numerator is greater than the denominator, indicating whole numbers.

2 3/4 cups into an improper fraction:

take the whole number (2) and multiply it by the denominator (4):

2 x 4 = 8

then we add the numerator (3) to that result:

8 + 3 = 11

now put your fraction back together, 11 is the new numerator and 4 is still your denominator:

11/4

6. find the choice where the numerators add up to 9

B is the correct choice because 3 + 2 + 3 + 1 = 9

goblinko [34]4 years ago

4 0

Part A

Answer = 8/10

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3 years ago

Read 2 more answers

Part A: explain why x coordinates of the points where the graphs of the equations y=4^x and y=2^(x-1) intersect are the solution

Maksim231197 [3]

9514 1404 393

Explanation:

A. The given equation will have a solution when the value of x makes the left-side expression equal to the right-side expression.

The value of the left-side expression for a given value of x is the y-value of y=4^x. The value of the right-side expression for a given value of x is the y-value of y=2^(x-1). The left-side expression will be equal to the right-side expression for a given value of x when the graph of y=4^x and the graph of y=2^(x-1) have the same y-value. That is, the graphs will be of the same point for that x-value. That is what we mean when we say the curves will intersect at that point.

The x-coordinate of the point of intersection is the value that makes the expressions equal, hence it is the solution to the equation.

B. The tables are included in the first attachment. We have used f(x) to represent the left-side expression, and g(x) to represent the right-side expression.

C. As described in Part A, the graphs will cross at the solution point. Hence the equation can be solved graphically by graphing the left-side expression and the right-side expression and seeing where the graphs cross. (That is at the point (-1, 0.25) on the attached graph.)

Alternate graphical method

The solution can also be found graphically by graphing the difference of the expressions: y = 4^x -2^(x-1). This difference will be zero at the value of x that makes the two expressions equal. That is, the x-intercept of the graph of this difference will be the solution value. The second attachment shows this sort of graphical solution. (It works nicely because many graphing calculators will display the value of the x-intercept.)