3 years ago

Help.................

Mathematics

1 answer:

Bad White [126]3 years ago

7 0

Answer:

x=120 degrees

Step-by-step explanation:

Vertical angles are congruent

You might be interested in

What is the equation of the line best fit for the following data? Round the slope and y-intercept of the line to three decimal p

kari74 [83]

Answer:

$y=1.383x-1.526$

Step-by-step explanation:

The given data table is

x : 4 7 10 12 13

y : 5 7 12 14 18

We need to find the equation of the best fit line.

The general form of a best fit line is

$y=mx+b$ .... (1)

where, m is slope and b is y-intercept.

$m=\frac{\sum_{i=1}^nx_iy_i-n\overline{x}\overline{y}}{\sum_{i=1}^nx_i^2-n\overline{x}^2}$

$b=\overline{y}-b\overline{x}$

Using the graphing calculator we get

$m=1.38321\approx 1.383$

$b=-1.52555\approx -1.526$

Substitute m=1.383 and b=-1.526 in equation (1).

$y=1.383x-1.526$

Therefore, the equation of best fit line is $y=1.383x-1.526$ .

4 0

3 years ago

Read 2 more answers

Omar deposits $300 in an account earning 3% interest compounded annually. How much interest will the account earn after 5 years

lesya692 [45]

Do 300 times by 1.03 to the power of 5

3 0

3 years ago

A monthly contribution of $200 is deposited into an interest-bearing account.If the account has a 4.8% interest rate and compoun

bearhunter [10]

Answer:

22848 is your answer after you subtract the interest rate

Step-by-step explanation:

8 0

3 years ago

An 18% discount on a watch saved a shopper $72. Find the price of the watch before the discount

Mamont248 [21]

1% = $4

$4 × 100 = $400

$4 × 18 = $72

Your answer is $400

5 0

3 years ago

Convert the following Celsius degrees to Fahrenheit.

Nat2105 [25]

Answer:

a 95

b 932

c 50

d 131

Step-by-step explanation:

formula (C × 9/5) + 32 = F

3 0

2 years ago