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
hammer [34]
3 years ago
15

Someone please help me with this geometry question

Mathematics
2 answers:
marin [14]3 years ago
8 0

Answer:

Step-by-step explanation:

-7x + 12 + (-8x + 48) = 180

-15x + 60 = 180

-15x = 120

x = -8

m<BDC= -7(-8)+ 12 = 56 + 12 = 68

m<CBA = -8(-8)+48 = 64+48 = 112

Andrej [43]3 years ago
4 0

Answer:

x=-8

mbdc=68

Step-by-step explanation:

bda is a straight angle

=> bdc+cda=180°

=> (-7x+12)°+(-8x+48)°=180°

=> -15x+60=180°

=> -15x=120°

=> x=-8

bdc= (-7)×(-8)+12=68°

You might be interested in
To solve m/-2+11=14 what steps would you use
Butoxors [25]
M÷-2+11=4
m÷9=4
m=4*9
m=36
5 0
3 years ago
Eduardo and Paul are leaving the same airport in Florida. Eduardo’s flight to Jamaica is 273 miles long. Paul's flight to Hondur
k0ka [10]

Answer:

B. 41.8° is the correct answer

Step-by-step explanation:

We are given that,

Length of Eduardo's flight path = 273 miles

Length of Paul's flight path = 357 miles

Distance between their destinations = 238 miles.

Now, using the law of cosines, we get,

238^2=273^2+357^2-2\times 273\times 357\times \cos \theta

i.e. 56644=74529+127449-194922\times \cos \theta

i.e. 56644=201978-194922\times \cos \theta

i.e. 194922\times \cos \theta=145334

i.e. \cos \theta=0.7456

i.e. \theta=\arccos 0.7456

i.e.  θ = 41.8°

Hence, the angle between their flight paths is 41.8°.

4 0
3 years ago
Which is more efficient way to solve this equation x + 7 = 12
kari74 [83]

Answer:

x=5

Step-by-step explanation:

x+7=12

x=12-7

x=5

4 0
3 years ago
Read 2 more answers
Which is the quotient of 17. 51 +3.4?
myrzilka [38]

Answer:

5.15

Step-by-step explanation:

17.51 / 3.4 = 5.15

7 0
3 years ago
Read 2 more answers
PLEASE HELP!
kondaur [170]
I need more info on this ? to answer.
6 0
2 years ago
Other questions:
  • The average polar bear weighs 1,200 pounds. The average grizzly bear weighs 800 pounds. The average black bear weighs 400 pounds
    12·1 answer
  • Which expressions are equivalent to 9x(2+y) ? Select each correct answer. 18x+9xy (9x⋅2)+(9x⋅y) 18x+(9x⋅y) 18xy 11x + y
    12·2 answers
  • I dont understand this but maybe some one will and they will help me. The quotient of a number and -7 decreased by 2 is ten find
    14·1 answer
  • What is 17 divided by 18​
    11·2 answers
  • A rectangle has a perimeter of 12 centimeters and a height of 5 centimeters. What is the length of the base?
    13·1 answer
  • Pls help .............​
    13·1 answer
  • 1: How many total pounds of potatoes were rationed each week?
    13·1 answer
  • What is the measure of the missing angle of the triangle? Round your answer to the nearest degree.
    8·1 answer
  • What expression is equivalent to (1/16)^-4
    10·2 answers
  • Suppose you deposit $2,500 in a savings account that pays interest at an annual rate of 6%. If no money is added or withdrawn fr
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!