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Luden [163]
3 years ago
9

AB is tangent to circle O at A. The diagram is not drawn to scale. if AO=21 and BC=14, what is AB?

Mathematics
2 answers:
barxatty [35]3 years ago
7 0
Ab would equal to 7 using tringle steps
mr Goodwill [35]3 years ago
7 0
Answer choices:
21
28
35
42


Did you get them??
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The graph shows your distance from home on a day trip to an apple farm which is 125 miles away. which statement is true about yo
Ghella [55]

Answer: b) it took you 3 hours to reach the apple farm

3 0
3 years ago
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Data was collected for 300 fish from the North Atlantic. The length of the fish (in mm) is summarized in the GFDT below.
kondor19780726 [428]

Answer:

The lower class boundary for the first class is 140.

Step-by-step explanation:

The variable of interest is the length of the fish from the North Atlantic. This variable is quantitative continuous.

These variables can assume an infinite number of values within its range of definition, so the data are classified in classes.

These classes are mutually exclusive, independent, exhaustive, the width of the classes should be the same.

The number of classes used is determined by the researcher, but it should not be too small or too large, and within the range of the variable. When you decide on the number of classes, you can determine their width by dividing the sample size by the number of classes. The next step after getting the class width is to determine the class intervals, starting with the least observation you add the calculated width to get each class-bound.

The interval opens with the lower class boundary and closes with the upper-class boundary.

In this example, the lower class boundary for the first class is 140.

6 0
3 years ago
Given below are a collection of scores on a spelling test: 5,6,10,8,3,5,9,8,7,4,6,5,3,7,9,5,6,4,5,6,7,5,4,6 a.) construct a freq
horsena [70]
Compute relative frequencies
6 0
3 years ago
A music app charges $2 to download the app plus $1.29 per song downloaded wright and solve a linear equation to find the total c
fredd [130]

The linear equation used to solve the problem is t = 2 + 1.29a and total cost to download 30 songs is $ 40.7

<em><u>Solution:</u></em>

Given that music app charges $2 to download the app plus $1.29 per song downloaded

To find: write and solve a linear equation to find the total cost to download 30 songs

Let us first write a expression for total cost

Let "a" be the number of songs downloaded

So we can frame a equation as:

total cost = initial charge + cost of 1 song download x number of songs downloaded

total cost = 2 + 1.29 \times a

total cost = 2 + 1.29a

If "t" represents the total cost, then the linear equation is:

t = 2 + 1.29a

<em><u>finding the total cost to download 30 songs:</u></em>

Here a = 30

Substitute a = 30 in above formula

total cost = 2 + 1.29(30)

total cost = 2 + 38.7

total cost = 40.7

Thus total cost to download 30 songs is $ 40.7

3 0
3 years ago
Which expression is equivalent to (x + y)(x – y)?
Goshia [24]
X^2-y^2
you would get x^2+xy-xy+y^2
the xy and -xy cancel
5 0
3 years ago
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