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
Tasya [4]
3 years ago
5

Can a complement if an angle be an obtuse angle

Mathematics
1 answer:
ASHA 777 [7]3 years ago
6 0
Complementary angles add to 90 degrees. So if two angles are complementary, then they are acute (ie less than 90 degrees). So it's not possible for an obtuse angle to have a complementary angle. ... My first instinct was to tell you that an obtuse angle does not have a complement.
You might be interested in
Two college roommates have each committed to donating to charity each week for the next year. The roommates’ weekly incomes are
schepotkina [342]

Answer:

C. 5 weeks.

Step-by-step explanation:

In this question we have a random variable that is equal to the sum of two normal-distributed random variables.

If we have two random variables X and Y, both normally distributed, the sum will have this properties:

S=X+Y\\\\\ \mu_S=\mu_X+\mu_Y=30+60=90\\\\\sigma_S=\sqrt{\sigma_X^2+\sigma_Y^2}=\sqrt{10^2+20^2}=\sqrt{100+400}=\sqrt{500}=22.36

To calculate the expected weeks that the donation exceeds $120, first we can calculate the probability of S>120:

z=\frac{S-\mu_S}{\sigma_S} =\frac{120-90}{22.36}=\frac{30}{22.36}=1.34\\\\P(S>120)=P(z>1.34)=0.09012

The expected weeks can be calculated as the product of the number of weeks in the year (52) and this probability:

E=\#weeks*P(S>120)=52*0.09012=4.68

The nearest answer is C. 5 weeks.

6 0
3 years ago
Identify the graph of the equation. What is the angle of rotation for the equation?<br><br>xy=-2.5
Maurinko [17]

Answer:

It is B. hyperbola, 45 degrees.

SteIt is p-by-step explanation:

If we rotate the standard form  x^2 - y^2 = 1 through 45 degrees we get xy = 1/2.

xy = -2.5 comes from x^2 - y^2 = -5  being rotated 45 degrees.

3 0
4 years ago
Read 2 more answers
How can △WXY be mapped to △MNQ?
Alexeev081 [22]
The answer is : 2)line segment wy
8 0
3 years ago
(-5,-3) (5,5)<br> slope<br> What is the slope ?
Setler [38]

Answer:

The slope is 10/8

Step-by-step explanation:

You would rise 10 units and you would run 8 units.

6 0
3 years ago
Read 2 more answers
What is 9x+35= -5y in slope intercept form, and what is the slope and y-intercept.​
alexdok [17]

Answer:

Slope Intercept Form: -(9/5)x-7=y

Slope: -9/5

Y intercept: -7

4 0
3 years ago
Read 2 more answers
Other questions:
  • Rajesh is working out the area of a circle with radius 10 he writes
    12·1 answer
  • PLS HELP ME ASAP FOR ALL 6!! (MUST SHOW WORK!!) + LOTS OF POINTS AND BRAINLIEST!!
    10·1 answer
  • A 3×10, rectangle sits inside a circle with radius of 12. What is the area of the shaded region? Round your final answer to the
    6·2 answers
  • Use substitution to find the indefinite integral 8x+7/(8x^2+14x)^4
    6·1 answer
  • What is the distributive property of 55+66​
    13·1 answer
  • Is this correct ? .......................
    10·1 answer
  • A bag contains 9 marbles: 2 are green, 2 are red, and 5 are blue. Deon chooses a marble at random, and without putting it back,
    13·1 answer
  • Suppose `h\left(t\right)=-5t^{2}+10t+3`is an expression giving the height of a diver above the water (in meters), t seconds afte
    15·1 answer
  • Geometry question: Is this enlargement or reduction?
    11·1 answer
  • Christina has 2 2/3 bags of chips. She gives 2/5 of the to friend. How many bags does christina have left?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!