1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kvv77 [185]
2 years ago
6

Please help me with this

Mathematics
1 answer:
andre [41]2 years ago
7 0

Answer:

Step-by-step explanation:

to make life easier, i'll give both angles letters

Angle ABC= x

Angle CBD= y

x= y(1/3)

x+y=180

now substitute

y(1/3) +y =180

y(4/3) =180

y(4/3) * (3/4)  = 180  *  (3/4)

y= 135

CBD is 135 degrees

You might be interested in
What equation represents (0,3) (1, 1)
weqwewe [10]

your answer would be 2x - y + 3 = 0

3 0
3 years ago
Consider the following hypothesis test.H0:μ1−μ2=0 Ha:μ1−μ2≠0The following results are for two independent samples taken from the
Julli [10]

Answer:

a) z =\frac{104-106}{\sqrt{\frac{8.4^2}{80} +\frac{7.6^2}{70}}}= -1.53  

b) p_v =2*P(z

c) Since the p value is higher than the significance level provided we have enogh evidence to FAIL to reject the null hypothesis and we can't conclude that the true means are different at 5% of significance

Step-by-step explanation:

Information given

\bar X_{1}= 104 represent the mean for 1

\bar X_{2}= 106 represent the mean for 2

\sigma_{1}= 8.4 represent the population standard deviation for 1

\sigma_{2}= 7.6 represent the population standard deviation for 2

n_{1}=80 sample size for the group 1

n_{2}=70 sample size for the group 2

z would represent the statistic

Hypothesis to test

We want to check if the two means for this case are equal or not, the system of hypothesis would be:

H0:\mu_{1}=\mu_{2}

H1:\mu_{1} \neq \mu_{2}

The statistic would be given by:

z =\frac{\bar X_1-\bar X_2}{\sqrt{\frac{\sigma^2_1^2}{n_1} +\frac{\sigma^2_2^2}{n_2}}}=(1)

Part a

Replacing we got:

z =\frac{104-106}{\sqrt{\frac{8.4^2}{80} +\frac{7.6^2}{70}}}= -1.53

Part b

The p value would be given by this probability:

p_v =2*P(z

Part c

Since the p value is higher than the significance level provided we have enogh evidence to FAIL to reject the null hypothesis and we can't conclude that the true means are different at 5% of significance

6 0
3 years ago
The angle of elevation to a nearby tree from a point on the ground is measured to be
slega [8]

Answer:

186.6

Step-by-step explanation:

Based on the given conditions, formulate: 91 ×tan 64°

Calculate the approximate value: 91×2.050304

= 186.577664

Round the number: 186.6

186.6

6 0
2 years ago
In a singing contest, about 1/20 of the finalists came from Austin, Texas, and about 3/20 came from the state of Texas. What fra
Pie
It is d 1/3
That I saw the answer for your question
6 0
3 years ago
3. The amount was $120 at 5% rate for 4<br> years.
Inga [223]

Answer:

Go to photo math thank me later

Step-by-step explanation:

dowload tha app on ur phone

5 0
3 years ago
Other questions:
  • How does -3-10= -13? Please explain
    5·2 answers
  • Which linear equation passes through the points (0, -2) and (4, 10)?
    9·1 answer
  • A kindergarten teacher asked the students’ parents to send their child to school with two fruits (apples and/or oranges). Below
    11·1 answer
  • Factor -3/4 out of 3/2x - 9/4y
    9·1 answer
  • A baby girl weighed 112 ounces when she was born. How many pounds did she weigh when she was
    9·2 answers
  • If x^2+y^2 =25 and dy/dt =6, find dx/dt when y=4
    14·1 answer
  • The average marks obtain by three students is 15.if 2 students obtain 12 and 18 Marks respectively find the marks obtained by th
    9·1 answer
  • Chooose the like terms 3h,i,4i answer
    11·1 answer
  • Plsssssssssssssssss help me plsssssssssssssssssssssss
    12·2 answers
  • Which stem-and-leaf plot represents this data? 80, 81, 91, 92, 66, 55, 54, 30, 55, 79, 78 A stem-and-leaf plot with a stem value
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!