All categories

3 years ago

Find the value of x. id necessary round your answer to the nearest tenth

Mathematics

1 answer:

Kobotan [32]3 years ago

5 0

Answer:

see below

Step-by-step explanation:

AB = DC Given

AO = BO = OD = DC Def. of radii

ΔOAB ≅ ΔOCD SSS

x = 77° CPCTC

You might be interested in

Please help!!! I’ll mark you as brainliest!!!!

Daniel [21]

Answer: D $26

Step-by-step explanation:

50-(50x.3)= 35

35-6=29

29-3=26

5 0

3 years ago

A square has a perimeter of 16.4 inches. The<br> area of the square is<br> square inches.

slamgirl [31]

Answer:

area = 8.2 sq inch

Step-by-step explanation:

7 0

3 years ago

Hurry please...

Eva8 [605]

Answer:

initial value=2

rate of change=1

Step-by-step explanation:

rate of change=(3-2)/(1-0)=1

7 0

4 years ago

Please help im struggling so much

Serggg [28]

Answer:

B. y=-10,250

C. 6 payments

Sorry for my terrible handwriting.. Hope this helps tho! Have a great day/night!

8 0

2 years ago

A manager at a local company asked his employees how many times they had given blood in the last year. The results of the survey

Lubov Fominskaja [6]

Answer:

$Var(X) = E(X^2) -[E(X)]^2 = 4.97 -(1.61)^2 =2.3779$

And the deviation would be:

$Sd(X) =\sqrt{2.3779}= 1.542 \approx 1.54$

Step-by-step explanation:

For this case we have the following distribution given:

X 0 1 2 3 4 5 6

P(X) 0.3 0.25 0.2 0.12 0.07 0.04 0.02

For this case we need to find first the expected value given by:

$E(X) = \sum_{i=1}^n X_i P(X_I)$

And replacing we got:

$E(X)= 0*0.3 +1*0.25 +2*0.2 +3*0.12 +4*0.07+ 5*0.04 +6*0.02=1.61$

Now we can find the second moment given by:

$E(X^2) =\sum_{i=1}^n X^2_i P(X_i)$

And replacing we got:

$E(X^2)= 0^2*0.3 +1^2*0.25 +2^2*0.2 +3^2*0.12 +4^2*0.07+ 5^2*0.04 +6^2*0.02=4.97$

And the variance would be given by:

$Var(X) = E(X^2) -[E(X)]^2 = 4.97 -(1.61)^2 =2.3779$

And the deviation would be:

$Sd(X) =\sqrt{2.3779}= 1.542 \approx 1.54$

8 0

4 years ago