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
Dovator [93]
3 years ago
14

PLEASE HELP!!!!!!!dgbdgdbhdndcn

Mathematics
1 answer:
bogdanovich [222]3 years ago
6 0
Problem 1)

AC is only perpendicular to EF if angle ADE is 90 degrees

(angle ADE) + (angle DAE) + (angle AED) = 180
(angle ADE) + (44) + (48) = 180
(angle ADE) + 92 = 180
(angle ADE) + 92 - 92 = 180 - 92
angle ADE  = 88

Since angle ADE is actually 88 degrees, we do NOT have a right angle so we do NOT have a right triangle

Triangle AED is acute (all 3 angles are less than 90 degrees)

So because angle ADE is NOT 90 degrees, this means AC is NOT perpendicular to EF

-------------------------------------------------------------

Problem 2)

a) The center is (2,-3) 

The center is (h,k) and we can see that h = 2 and k = -3. It might help to write (x-2)^2+(y+3)^2 = 9 into (x-2)^2+(y-(-3))^2 = 3^3 then compare it to (x-h)^2 + (y-k)^2 = r^2

---------------------

b) The radius is 3 and the diameter is 6

From part a), we have (x-2)^2+(y-(-3))^2 = 3^3 matching (x-h)^2 + (y-k)^2 = r^2

where
h = 2
k = -3
r = 3

so, radius = r = 3
diameter = d = 2*r = 2*3 = 6

---------------------

c) The graph is shown in the image attachment. It is a circle with center point C = (2,-3) and radius r = 3.

Some points on the circle are

A = (2, 0)
B = (5, -3)
D = (2, -6)
E = (-1, -3)

Note how the distance from the center C to some point on the circle, say point B, is 3 units. In other words segment BC = 3.

You might be interested in
Three points are colinear.<br> always<br> sometimes <br> never
Novosadov [1.4K]
Three or more points are collinear, if slope of any two pairs of points is same. With three points A, B and C, three pairs of points can be formed, they are: AB, BC and AC. If Slope of AB = slope of BC = slope of AC, then A, B and C are collinear points
6 0
3 years ago
What does 21÷3+(3×9)×9+5 equal? show work below plz
igor_vitrenko [27]
3x9=27
21/3 = 7
so
7+27x9+5
27x9=243
243+7+5
answer is 255
6 0
3 years ago
Read 2 more answers
1100 students attend Ridgewood Junior High School. 4% of students bring their lunch to school everyday. How many students brough
Triss [41]

Answer:

the answer is 44 students.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Carson has a package to mail. The package is 87 cm long. The shipping company only mails packages that are up to 35 in. long. Ca
m_a_m_a [10]

Based on the conversion done, the figure gotten is larger. Therefore, Carson cannot mail the package

From the information given, the package is 87 cm long.

Also, the shipping company only mails packages that are up to 35 in. long. Then, we convert inches to cm. This will be:

= 35 × 2.54 = 88.9 cm.

Therefore, he can't mail the package.

Learn more about conversion on:

brainly.com/question/25828084

7 0
3 years ago
Solve the equation. Explain how you found your answer.<br><br> 8y + 2y = 2y + 40
Jlenok [28]

Answer:

y = 5

Step-by-step explanation:

Subtract 2y from either side. It'll cancel out both of them. Then the equation is 8y = 40.

Divide both sides by 8 and you get y=5

Pretty sure that's right. I have a dad who has a math degree so I think it would be right because he helps me every time.

7 0
3 years ago
Read 2 more answers
Other questions:
  • What is 36 divided by 540 using partial quosient
    15·2 answers
  • HELP!! What is the absolute value of –1.9?
    14·2 answers
  • How to write (7,-6);m= 1/2 in slope intercept form?
    11·2 answers
  • Tanisha spends $20.90 on 9.5 quarts of strawberries for the shortcake. What is the price of each quart of strawberries?
    10·1 answer
  • Can someone plz help how to solve this by showing the work to
    11·1 answer
  • Find the x and y intercepts of the graph of the equation y=x^2-5
    11·1 answer
  • How many grams are 7.00 x 1022 molecules of NaOH?
    10·1 answer
  • An 80–calorie apple is 4% of jeremy’s daily caloric intake. What is Jeremy’s daily caloric intake?
    13·1 answer
  • A washer and a dryer cost $757 combined. The washer costs $57 more than the dryer. What is the cost of the dryer?
    14·2 answers
  • (2 tens 1 one)x10 in unit form and standard form
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!