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
bija089 [108]
3 years ago
15

In ΔEFG, e = 2.6 cm, f = 7.2 cm and g=8.3 cm. Find the measure of ∠F to the nearest degree.

Mathematics
2 answers:
Svet_ta [14]3 years ago
4 0

Answer:

  • 57°  

Step-by-step explanation:

<u>Use the law of cosines:</u>

  • cos F = (e² + g² - f²)/2eg
  • cos F = (2.6² + 8.3²- 7.2²)/2(2.6)(8.3)
  •          = 0.5516
  • ∠F = arccos 0.5516
  • ∠F = 57° (rounded to the nearest degree)
goldfiish [28.3K]3 years ago
4 0

Answer:

57

Step-by-step explanation:

cos F = (e² + g² - f²)/2eg

cos F = (2.6² + 8.3²- 7.2²)/2(2.6)(8.3)

        = 0.5516

∠F = arccos 0.5516

∠F = 57° (rounded to the nearest degree)

You might be interested in
Dina has a number cube that she uses for a game. The number cube has the shape of a triangular pyramid, with 4 faces numbered 1
yaroslaw [1]

Answer:

A) The relative frequencies in the table are reasonably close; C) The relative frequency of rolling an even number is 0.51.

Step-by-step explanation:

The relative frequencies given are at most 0.02 apart.  This means they are reasonably close.

The theoretical probability for each outcome would be 1/4, or 0.25; this means the theoretical probability of rolling an even number would be 0.50, not 0.51.

However, the relative frequency of rolling an even number would be 0.24+0.27 = 0.51.

Since the relative frequencies are reasonably close, the number cube is likely to be fair.

6 0
3 years ago
Read 2 more answers
Can someone tell me the answer for this
lidiya [134]
Right answer number 3, think this gonna help u
5 0
3 years ago
100 PTS
Digiron [165]

Answer:

69 yards

Step-by-step explanation:

Perimeter = 2(length + width)

300 = 2(81 + width)

150 = 81 + width

width = 69

7 0
3 years ago
Read 2 more answers
Is it B, am I right, please answer fast.
yKpoI14uk [10]

Answer: C

Step-by-step explanation:

I’m pretty sure it’s c because x isn’t less than -2. It goes forever in the directions of positive and negative infinity

8 0
3 years ago
Read 2 more answers
Evaluate log12 - log4 + log5 and can you explain it to me?
mario62 [17]
Remember some simple log rules

log(a)+log(b)=log(ab)
and
log(a)-log(b)=log(\frac{a}{b})

work from left to right

log(12)-log(4)+log(5)=
log(\frac{12}{4})+log(5)=
log(3)+log(5)=
log(3*5)=
log(15)
7 0
3 years ago
Other questions:
  • In your garden, sandy soil can be corrected by adding what?
    11·1 answer
  • Complete the statement.
    7·1 answer
  • The volume of a cylinder, found using 3.14 to approximate pi, is 30,395.2 cm3. The radius of the cylinder is 11 cm.
    9·1 answer
  • Which function is a quadratic function? c(x) = 6x 3x^3 d(x) = x – 8x^4 p(x) = –5x – x^2 k(x) = 2x^2 9x^4
    11·1 answer
  • Why do we use variables, and what is the significance of using them in expressions and equations?
    11·1 answer
  • 5/9 of a number is 65 find the number
    13·1 answer
  • three times the sum of a number x and 3 is 10 plus twice the difference of the number x and another number y
    11·1 answer
  • What is 24=78^2 what is it
    13·1 answer
  • The histogram shows information about how 550 people travel to work.
    14·1 answer
  • Aleesia has a box of 52 muffins. She wants to put out plates that each have the same number of muffins. What is one possible way
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!