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
brilliants [131]
2 years ago
9

If tanx = 0.75, what is the value of cosx + sinx ?

Mathematics
2 answers:
kap26 [50]2 years ago
4 0
Cosine (x) = 4 over 5
cos
(
x
)
=
4
5
Explanation:
First you must apply sohcahtoa
it means
sine = opposite side over hypotenuse
sine = opposite/hypotenuse
cosine = adjacent side over hypotenuse
cosine = adjacent/hypotenuse
tangent = opposite side over adjacent side
tangent = opposite/adjacent
then
solve the unknown by applying the Right Triangle Theorem.
draw a right triangle.
label the parts where
a
is the opposite side
b
is the adjacent side
c is the hypotenuse
Solve the unknown. The hypotenuse using
a
2
+
b
2
=
c
2

since the given
tan
x
=
3
4

it means
tan = opposite/adjacent
a
= opposite side =
3

b
= adjacent side =
4

c
= hypotenuse = ??
a
2
+
b
2
=
c
2

substitute the value
(
3
)
2
+
(
4
)
2
=
c
2

9
+
16
=
c
2

25
=
c
2

get the square root of
25

it is equal to
5

therefore
c
=
5

c
= hypotenuse =
5

cos
= adjacent/hypotenuse
cos
(
x
)
=
4
over
5

cos
(
x
)
=
4
5
Viefleur [7K]2 years ago
4 0

Answer:

theta is eq to 36.86 value is. 0.5998+0.8=1.399

You might be interested in
1+2000000000000000000000000000000000000
Pavel [41]

Answer: 2000000000000000000000000000000000001

Step-by-step explanation: simple addition <3

7 0
3 years ago
Ashley walks 1/3 of a mile each day. After 10 days, how many miles has she walked?
Serga [27]

Answer:

3 1/3

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Are the fractions 7/9 and 4/9 like fractions? Explain your
Natalka [10]

Answer:

No

Step-by-step explanation:

Because they are not proportional they do are not a multiple of each other

5 0
3 years ago
Read 2 more answers
PLSSSS HELP ME!! Which of the following graphs represents a function?
ella [17]

Answer:

A.

Step-by-step explanation:

A.

In graph A no two points have the same x-coordinate. That makes it a function.

4 0
3 years ago
5&lt;b-3. whats the answer????
9966 [12]

Answer:

5<b-3

Add 3 on both sides

8<b

The variable will always go on the left side of the equation. To flip the equation, you must also flip the less than sign to a greater than sign.

b>8

Hope I helped!

8 0
3 years ago
Read 2 more answers
Other questions:
  • organizer for a local race plan to provide 4 water bottles for eah runner. 328 people have signed up to run in the race which of
    6·1 answer
  • Please help me please The graphs below have the same shape. Complete the equation of the blue
    9·2 answers
  • The length of a rectangle is 16 inches ,and its area is (32+48)square inches . Factor the expression for the area .write an expr
    14·1 answer
  • Which of the following is the statement below describing? If a point is on the bisector of an angle, then it is equidistant from
    7·2 answers
  • Using each of the digits 0-6 only once, make two equivalent ratios
    8·1 answer
  • Can someone answer this question if you know the answer.
    14·1 answer
  • Helppppppp meeeeeeee please
    5·1 answer
  • I have to find the area of the shaded region in the figure above and answer using an exact and approximate answer
    10·1 answer
  • $4750 invested at 10% p.a compounded semiannually for 10 years, calculate the interest
    7·1 answer
  • 2.The number of grams A of a certain radioactive substance present at time, in yearsfrom the present, t is given by the formulaA
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!