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lawyer [7]
3 years ago
13

PLEASE HELP ME WITH BOTH QUESTIONS THANKS!!

Mathematics
1 answer:
vitfil [10]3 years ago
8 0

First one:

cos(A)=AC/AB=3/4.24

cos(B)=BC/AB=3/4.24

Cos(A)/cos(B)=AC/AB / (BC/AB) = AC/AB * AB/BC = AC/BC=3/3=1


Second one:

To solve this problem, we have to ASSUME AFE is a straight line, i.e. angle EFB is 90 degrees. (this is not explicitly given).

If that's the case, AE is a transversal of parallel lines AB and DE.

And Angle A is congruent to angle E (alternate interior angles).

Therefore sin(A)=sin(E)=0.5

You might be interested in
If EG=67, then EF=?<br> There is a picture below
ikadub [295]
If EG=67 we have (3x+7)+(5x-4)=67
let's simplify
67 = (3x + 7) + (5x - 4) \\ 67 = 8x + 3 \\ 64 = 8x \\  \frac{64}{8}  = x \\ 8 = x
now we know x is 8 we can use this to find EF
since EF=3x+7
3(8) + 7 = 24 + 7 = 31
so we have EF is 31!
if.you like my answer please rate Brainliest
3 0
3 years ago
Read 2 more answers
In a bucket, there are 5 red marbles, 3 blue marbles, and 2 green marbles. A marble is chosen randomly and then put back into th
nadezda [96]

Answer:

The required probability is \frac{1}{10}.

Step-by-step explanation:

Probability:

The ratio of the favorable outcomes to the all possible outcomes.

Given that, in a bucket, there are 5 marbles red in color, 3 marbles blue in color and 2 marbles green in color.

Total number of marbles  are = 5+3+2= 10

The probability that first marble was red

=\frac{\textrm{Number of red marbles}}{\textrm{Total number of marbles}}

=\frac{5}{10}

=\frac12

The probability that second marble was green is

=\frac{\textrm{Number of green marbles}}{\textrm{Total number of marbles}}

=\frac{2}{10}

=\frac15

The required probability is

=\frac12 \times \frac15

=\frac1{10}

8 0
3 years ago
andre,rick,and ty were practicing for a track cycling race. andre covered a distance of 750m in 3 min. rick clocked 4 minutees f
FrozenT [24]

Answer:

Ty covered the least distance per min.

Step-by-step explanation:

Who covered the shortest distance per minute, or who rode his bike most slowly?

Andre's rate: (750 m) / (3 min) = 250/3 m/min

Rick's rate:  (800 m) / (4 min) = 200 m/min

Ty's rate:  (950 m) / (5 min) = 190 m/min

Ty was the rider who covered the least distance per minute; his rate was the slowest.

8 0
3 years ago
Read 2 more answers
Mary spent a total of $351.20 for a party. She spent $200.60 on food, plus an additional $30.12 for each hour of the party. How
damaskus [11]

Answer:

5 hours

Step-by-step explanation:

First subtract the food cost from the total bill.

351.20 - 200.60 = 150.6

Than divide 150.6 by 30.12

150.6 ÷ 30.12 = 5

5 0
3 years ago
Read 2 more answers
What is another way to find 5 x (2 x 4)
MrMuchimi
As all of it is multiplication, the way you multiply will not matter.

so  5 x (2 x 4) can be (5 x 2) x 4, as it generates the same answer: 40

hope this helps
5 0
3 years ago
Read 2 more answers
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