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grigory [225]
3 years ago
8

How do you do this ​

Mathematics
1 answer:
Eduardwww [97]3 years ago
4 0

let's recall that the sum of all interior angles in a triangle is 180°, so then

\bf \stackrel{\measuredangle A}{x}+\stackrel{\measuredangle B}{(x+40)}+\stackrel{\measuredangle C}{30} ~~=~~ 180\implies 2x+70=180 \\\\\\ 2x=110\implies x=\cfrac{110}{2}\implies \stackrel{\measuredangle A}{x} = 55

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WHAT IS THE LINE OF BEST FIT FOR THE FOLLOWING DATA (1,3) (2,0) (5,-8) (9, -25) . WRITE YOUR ANSWERS IN THE FORM OF Y= AX+ B​
dimulka [17.4K]

Answer:

3.471 + 7.2516 x

Step-by-step explanation:

Given the data:

(1,3) (2,0) (5,-8) (9, -25) .

X:

1

2

5

9

Y:

3

0

-8

-25

The line of best fit for the data given can be obtained using an online regression calculator :

The equation of best fit for the data is thus;

Best fit equation; y = -3.471 + 7.2516x

Intercept = - 3.471 ;

Slope = 7.2516

5 0
3 years ago
D. You are running a 4500-foot race. How much farther
azamat

Answer:

2500 feet

Step-by-step explanation:

4500 minus 2000 = 2500

7 0
2 years ago
Parallel lines "a" and "b" are cut by a transversal "c." What is "R" in the diagram below?
belka [17]

Answer:

I'm guessing it's 70°

Step-by-step explanation:

in the image above you can see I circled the 70°

the same angle is below it to the left. which means it's 70°

4 0
3 years ago
Read 2 more answers
Help me please this is very important to me for rbainlist and explain
11Alexandr11 [23.1K]

Answer:

Step-by-step explanation:

The probability of getting one even and one odd is the sum of probability of getting even and of getting odd and even. Since there are 3 even or odd on each die out of six numbers you have

P(EO)(3/6)(3/6)=1/4 and P(OE)=(3/6)(3/6)=1/4 so 1/4+1/4= 1/2

or you can find the probability of getting two odds or two evens and subtract that from 1

P(EE)=(3/6)(3/6)=1/4, P(OO)=(3/6)(3/6)=1/4

P(EO)=1-1/4-1/4=1/2

6 0
3 years ago
What is the value of k?
AlladinOne [14]

So first, you want to find that top angle Y. You can do this by subracting 115 from 180 giving you 65. Next I started searching for K. After inserting numerous numbers into the equation I found that 10 gave me the answer as shown below.

180 - 115 = 65

4(10) + 5 = 45

6(10) + 10 = 70

70 + 65 + 45 = 180

Add those together and you get 180 degrees, which is always the total number of degrees for a triangle. So your answer is 10.

Hope this helps! <3

4 0
3 years ago
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