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
kicyunya [14]
2 years ago
12

PLEASE ANSWER CORRECTLY, I WILL GIVE BRAINLIEST <3 THANKS IN ADVANCE!

Mathematics
1 answer:
guajiro [1.7K]2 years ago
6 0

Answer:

1 : 15

2: 12

3: 52

4: 27.3

Step-by-step explanation:

For #1:

if line m and n are perpendicular then they will create right angles

Right angles have a measure of 90 degrees

That being said we can find the measure of the missing angle by subtracting the measure of the known angle (75) from 90

so k = 90 - 75

90 - 75 = 15

Hence k = 15.

For #3 ( very similar to #1, only difference is the values of the angles )

so R = 90 - 38

90 - 38 = 52

Hence, R = 52

For #2 and #4

Complementary angles have a sum of 90°

So like the previous questions we can find the measure of the missing angle by subtract the measure of the given angle from 90

∠V = 90 - 78

90 - 78 = 12

Hence ∠V = 12

∠Y = 90 - 62.7

90 - 62.7 = 27.3

Hence ∠Y = 27.3

You might be interested in
211 times 9=&lt;—round the answer.
Yuki888 [10]

Answer:

211 × 9 is 1899 so rounding to nearest thousands would be 2000

3 0
3 years ago
Find f'(x) for the given function.<br> f(x)=1/8+x
Novay_Z [31]
1234567891012345678910
3 0
2 years ago
The mathematics class took an educational field trip. There were 360 total students in buses and vans. If each bus holds 55 stud
saveliy_v [14]
I think if you take 360 and divide it by 55 thats how many busses they used. Then take that answer and divide it by 13 to find how many vans were used.
5 0
3 years ago
What is the unknown number of n/7= 5/(7/9) ?
bekas [8.4K]

Answer:

the unknown numer is n=45

6 0
3 years ago
Read 2 more answers
Assume a researcher recruits 150 African American and Caucasian individuals taking warfarin to determine if there is a differenc
Anettt [7]

Answer:

Z=11.0

Step-by-step explanation:

Let Caucasian individuals be the population 1 and African American be the population 2. So, we are given that

n=150

n1=75

mean1=xbar1=6.1.

standard deviation1=S.D1=σ1=1.1.

Variance1=V(x1)=σ1²=1.1²=1.21.

n2=75.

mean2=xbar2=4.3.

standard deviation2=S.D2=σ2=0.9.

Variance2=V(x2)=σ2²=0.9²=0.81.

The z-statistic is

Z=\frac{xbar1-xbar2}{\sqrt{\frac{V(x1)}{n1}+ \frac{V(x2)}{n2} } }

Z=\frac{6.1-4.3}{\sqrt{\frac{1.21}{75}+ \frac{0.81}{75} } }

Z=\frac{1.8}{\sqrt{0.0161+ 0.0108 } }

Z=\frac{1.8}{\sqrt{0.0269 } }

Z=\frac{1.8}{0.164 } }

Z=10.97

Z=11.0

So, the z value obtained while calculating the test statistic is approximately 11.0.

4 0
3 years ago
Other questions:
  • Someone please help me will give BRAILIEST!!!!!!
    9·2 answers
  • my class collected 389 milk jugs. We used 40 jugs. We gave 30 milk to the first graders. how many milk jugs did we have?
    8·1 answer
  • Which statements about the number properties are true? Choose all answers that are correct. A. The associative property applies
    5·1 answer
  • Divide: 8xy^2 - 14y^2/2y<br><br> Answers: <br> 4xy^2-7y^2<br> 4x-7<br> 4xy-7y<br> 4y-7x
    11·1 answer
  • How can I do 30-4 as a mixed number
    11·1 answer
  • Find the equation of the line with slope -1/5 and y-intercept (0,-2)
    9·2 answers
  • Help me asap ASAP ASAP
    6·1 answer
  • What is 3 7/5 in radical form
    13·1 answer
  • Work out cube root of 512 : reciprocal of 0.4. Give your answer in the form n : 1
    10·1 answer
  • Which is the solution to the equation below? 4n+5=25-3n
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!