Help me on all of the questions below plz

Mathematics

1 answer:

Lubov Fominskaja [6]3 years ago

7 0

1- The answer is that she wants the new time to be 32 minutes

Solution: The question asks that she wants to DECREASE by 20%

What you will do it convert 20% to a decimal (which is 0.20)

Then, you need to multiply the minutes by the decimal:

40 x 0.20 = 8 minutes

Now you know that 8 minutes will be 20% of 40 minutes, so you just subtract 8 from 40 UwU

You might be interested in

Raffia had a board that that was 15 1/2 feet long he put three pieces off the board that are each 3 7/8 feet long how much of th

Sonbull [250]

11 5/8 of the board is left.

4 0

3 years ago

How do you sketch a graph of a function?

Illusion [34]

The graph of a function can be sketched by plotting points.

First and foremost, it is to be determined if the function is odd/even or periodic. Next, we find the x and y intercepts. To sketch a graph of a function, one can start by plotting a few points that lie on the graph using the coordinates given by the function. For example, if the function is y = x², then points (0, 0), (1, 1), and (2, 4) can be plotted by substituting the values of x into the function to find the corresponding values of y.

Subsequent to this, one can connect the points with a smooth curve to form the graph of function. If the function is a straight line, the graph will be a straight line. If the function is quadratic, the graph will be a parabola. The graph may take on a more complicated shape for more complex functions.

Read more about the graph of a function on:

brainly.com/question/26857518

#SPJ4

4 0

1 year ago

Which statement describe a polygon best ?

Bezzdna [24]

I believe that the best answer among the choices provided by the question is <span>2) figure that has 3 or more unequal length sides.</span>
Hope my answer would be a great help for you. If you have more questions feel free to ask here at Brainly.

8 0

3 years ago

Question 13

kicyunya [14]

Answer:

The c intercept is 42

The t intercepts are: 6, -1 and 7

Step-by-step explanation:

Given

$c(t) = (t - 6)(t +1)(t-7)$