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insens350 [35]
3 years ago
11

Assume that all intersecting sides meet at right angles

Mathematics
1 answer:
givi [52]3 years ago
8 0

Answer:

6

Step-by-step explanation:

15-9

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George is given two circles, Circle O and circle X, as shown. If he wants to prove that the two circles are similar, what would
baherus [9]

Answer:

Circle O is similar to Circle X because they have the same radius

4 0
2 years ago
Which table shows the same relationship as the graph? Explain thank you!
scoundrel [369]
The answer is D.


we start by looking at the graph. the line shown goes through these points perfectly:

(2, 0.5)
(4, 1)
(6, 1.5)
(8, 2)

and so on. now we see if any of these are included in the tables below.

there aren’t any decimals or fractions in any of the tables, so we just look for (4, 1) and (8, 2) as listed in the tables. we find that d includes those points and continues the trend with the other points listed.

therefore the answer is d.

hope this helps!! (:
4 0
2 years ago
Will someone please help me with these questions. The table shows the average annual cost of tuition at 4-year institutions from
erastovalidia [21]

Step-by-step explanation:

1.) The equation for the line of least squares regression is given by

Y=mX+c

where Y = Output Variable = Average Cost (in thousands of dollars)

           X = Input Variable = Number of years after 2000

Thus, the given data table transforms as follows:

No. of years after            3             4          5           6          7           8             9          10

after 2000 (X)

Average Cost (Y)         15.505   16.510  17.451   18.471   19.363  20.409  21.093 22.092

To determine the equation precisely, we need to calculate the values of 'm' (Slope) and 'c' (Y-intercept)

Let us take any two random values of X and Y from the above table, so that we have

X₁ = 3; Y₁ = 15.505       and      X₂ = 8; Y₂ = 20.409

Plugging in these two sets of values, we get the following two equations:

15.505 = (3)m + c     and

20.409 = (8)m + c

Let us subtract the upper one from the lower one so that we have

20.409 - 15.505 = 8m + c - 3m - c

4.904 = 5m

Hence, m = 0.9808

Using this value and plugging it in one of the above equations yields the value of c as

20.409 = 8(0.9808) + c

Therefore, c = 12.563

So, the required equation for the line of least squares regression is

Y = (0.9808)X + 12.563

2.) To estimate the cost of tuition at a 4-year institution in 2000, we can put the value of X to be 0.

We have Y = 0 + 12.563

Thus, the cost of tuition in 2000 was $12,563.

3.) To estimate the cost of tuition in 2020, we put the value of X as 20 so that we have

Y = (0.9808)(20) + 12.563 = 32.179

Therefore, we can expect the cost of tuition to be as high as $32,179 by 2020.

4.) The slope tells us the factor by which the tuition increases each year, starting with the base of 12,563 dollars in 2000.

One way to lower the cost of college tuition is by applying for a waiver based on income level. Alternatively, one can also work at the school.

One can join a part-time graduation program while working for the rest of the day so that one may support oneself as well as pay for their courses. Alternatively, one can opt for Online Courses and get some Diploma in their area of interest while working part-times so that they may pursue a degree later on in their life.

3 0
3 years ago
I=\sqrt{-1}i= −1 ​ i, equals, square root of, minus, 1, end square root, what is the sum (7+3i)+(-8+9i)(7+3i)+(−8+9i)left parent
nata0808 [166]

We can simply add the expression to simplify the expression. So,

(7+3i)+(-8+9i) =7 +3i -8+9i Get rid of paranthesis.

=(7-8)+(3i+9i) Group the like terms.

= -1 + 12i

4 0
3 years ago
Your mom is taking you shopping at the mall. She has $78 to spend on you. You already know that $18 of that money is for your sc
alexira [117]

Answer:

each coat $15

Step-by-step explanation:

$78-$18 divided by 4 =15

hope this helps :)

8 0
3 years ago
Read 2 more answers
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