All categories

3 years ago

Help I will be marking brainliest!!!

Mathematics

1 answer:

baherus [9]3 years ago

3 0

Answer:

Angle k is 34.5 degrees

Step-by-step explanation:

a circle makes 360 degrees total. okay so u have to consider the angles given. m arc go= 127

m<0 = 54.5

54.5 times 2 = 109

109 is arc gk

109 + 127+ 55= 291

360-291=69= arc OU

69 divided by 2 is 34.5

Angle k is 34.5 degrees

You might be interested in

An article in Knee Surgery, Sports Traumatology, Arthroscopy, "Arthroscopic meniscal repair with an absorbable screw: results an

igomit [66]

Answer:

Mean = 1.57

Variance=0.31

Step-by-step explanation:

To calculate the mean and the variance of the number of successful surgeries (X), we first have to enumerate the possible outcomes:

1) Both surgeries are successful (X=2).

$P(e_1)=0.90*0.67=0.603$

2) Left knee unsuccessful and right knee successful (X=1).

$P(e_2)=(1-0.9)*0.67=0.1*0.67=0.067$

3) Right knee unsuccessful and left knee successful (X=1).

$P(e_3)=0.90*(1-0.67)=0.9*0.33=0.297$

4) Both surgeries are unsuccessful (X=0).

$P(e_4)=(1-0.90)*(1-0.67)=0.1*0.33=0.033$

Then, the mean can be calculated as the expected value:

$M=\sum p_iX_i=0.603*2+0.067*1+0.297*1+0.033*0\\\\M=1.206+0.067+0.297+0\\\\M=1.57$

The variance can be calculated as:

$V=\sum p_i(X_i-\bar{X})^2\\\\V=0.603(2-1.57)^2+(0.067+0.297)*(1-1.57)^2+0.033*(0-1.57)^2\\\\V=0.603*0.1849+0.364*0.3249+0.033*2.4649\\\\V=0.1115+0.1183+0.0813\\\\V=0.3111$

3 0

3 years ago

What is T in -5t-2(5t+10)=100

Alina [70]

Answer:

t=-8

Step-by-step explanation:

-5t-2(5t+10t)=100

-2 x 5t=-10t

-2 x 10 = -20

-5t-10t-20=100

combine terms and add 20

-15t=120

divide by -15

t=-8

7 0

2 years ago

Plz help if you don’t mind

USPshnik [31]

Answer: Samson is correct

Step-by-step explanation: OK MODS LOOK I EXPLAINED IT GO BULLY SOMEONE ELSE $39x^{2} + 52x^{2} = 4225. \sqrt{4225} = 65$

5 0

2 years ago

HELP!!!!!!! Me pls I need this now anyone pls

Inessa05 [86]

It’s the first one. -9a^3b^2

6 0

3 years ago

Find the 65th term of a arithmetic sequence -10,-8,-6,-4......

Masja [62]

-69 is the answer i think

8 0

3 years ago