answer.
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
zvonat [6]
2 years ago
13

Find the measure of ∠EGC. Circle A with chords EF and CD that intersect at point G, the measure of arc EC is 50 degrees, the mea

sure of angle EGC is 7x plus 7 degrees, and the measure of arc DF is 10x degrees. 140° 90° 70° 50°
Mathematics
2 answers:
miv72 [106K]2 years ago
8 0

Answer:

m∠EGC=70°

Step-by-step explanation:

we know that

The measure of the inner angle is the semi-sum of the arcs comprising it and its opposite

so

m∠EGC=(1/2)[arc EC+arc DF]

<u><em>Find the value of x</em></u>

we have

m∠EGC=(7x+7)°

arc EC=50°

arc DF=10x°

substitute and solve for x

(7x+7)°=(1/2)[50°+10x°]

14x+14=50+10x

14x-10x=50-14

4x=36

x=9

<u><em>Find the measure of angle EGC</em></u>

m∠EGC=(7x+7)°

substitute the value of x

m∠EGC=(7(9)+7)°=70°

loris [4]2 years ago
7 0

Answer:

C. 70

Step-by-step explanation:

Got it on my test.

You might be interested in
Describe in detail how you would create a number line with the following points: 1, 3.25, the opposite of 2, and – (–4fraction o
rodikova [14]
 look at the whole numbers and not the tenths and hundreds and stuff.

<span>1, 2, 3.25, and then the fraction </span>
7 0
2 years ago
Read 2 more answers
Among all pairs of numbers whose difference is 16 find a pair whose product is as small as possible. What is the minimum​ produc
avanturin [10]
16,0
16-0=16
16*0=0
16,0 is the pair with the smallest product
4 0
2 years ago
An element with mass 140 grams decays by 21.6% per minute. How much of the element is remaining after 20 minutes, to the nearest
balandron [24]
The answer to this question is 1.1 grams
8 0
2 years ago
Read 2 more answers
Susan’s business makes handmade dresses. The business sells three different kinds of dresses: evening gowns, sundresses, and coc
nordsb [41]

Answer:

45

Step-by-step explanation:


3 0
2 years ago
Read 2 more answers
The number of tickets issued by a meter reader for parking-meterviolations can be modeled by a Poisson process with a rateparame
Doss [256]

Answer:

Step-by-step explanation:

Let X be the  number of tickets issued by a meter reader for parking-meterviolations can be modeled by a Poisson process with a rateparameter of five per hour.

X is Poisson with parameter =5per hour

a) the probabilitythat exactly three tickets are given out during a particular hour

=P(X=3)=0.14037

b)  the probabilitythat at least three tickets are given out during a particularhour

=P(X\geq 3) =0.87534

c) tickets we expect to be given during a 45-min period

=5(\frac{3}{4} )\\= 3.75

Note: Poisson distribution is

P(X=k) = \frac{e^{-k} 5^k}{l!}

3 0
2 years ago
Other questions:
  • Roy's average balance checking account pays simple interest of 4.8% annually and he made $2.25 in interest last month. What was
    12·1 answer
  • If f(x) = x3 – 2x2, which expression is equivalent to f(i)?
    12·2 answers
  • The perimeter of a square is 20 ft. If you increase the length of the square by 2 feet and decrease the width by 1 foot, what is
    13·2 answers
  • Tickets to the school musical are $5.00 for adults and $3.50 for students. If the total value of the tickets sold was $2517.50 a
    7·1 answer
  • In the country of Apexico, 6% of the population was unemployed in february of 2008. if there were 168.000.000 people willing and
    9·2 answers
  • Find x if a =13 and C = 47 need help
    11·1 answer
  • Evaluate y = ln (x − 2) for the following values of x. Round to the nearest thousandth.
    9·2 answers
  • In the theory of learning, the rate at which a subject is memorized is assumed to be proportional to the amount that is left to
    14·1 answer
  • The average lifetime of a certain new cell phone is 3.4 years. The manufacturer will replace any cell phone failing within three
    11·1 answer
  • Eric took $7000 of his income last year and invested it, part at 7% and the rest at 9%. He earned $570 from investments. How muc
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!