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
ikadub [295]
2 years ago
7

Work out the angle of x

Mathematics
1 answer:
Amiraneli [1.4K]2 years ago
3 0

Answer:

a)

Cos60=1/2=0.5

b)

cos60=4/x

0.5=4/x

0.5x=4

0.5x/0.5=4/0.5

x=8

You might be interested in
To boost holiday sales, a jewelry store in Bismarck, North Dakota, is advertising the following promotion: "If more than seven i
REY [17]

Answer:

  about 0.037

Step-by-step explanation:

A suitable probability calculator can provide the probability that 7 inches will be exceeded. It is about 0.036815.

The probability the store will have to refund money is about 0.037.

6 0
3 years ago
Help me please what do they mean?
gogolik [260]
Ask google it will help alot
6 0
3 years ago
Convert -√3-i to polar form.
Jlenok [28]

Answer:

-sqrt(3) -i = 2 cis (7pi/6)

Step-by-step explanation:

-sqrt(3) -i

We can find the radius

r = sqrt( (-sqrt(3)) ^2 + (-1) ^2)

  = sqrt( 3 + 1)

  = sqrt(4)

  = 2

theta = arctan (y/x)

          arctan (-1/-sqrt(3))

         arctan (1/sqrt(3))

theta = pi/6

But this is in the first quadrant, and we need it in the third quadrant

Add pi to move it to the third quadrant

theta = pi/6 + 6pi/6

         =7pi/6


-sqrt(3) -i = 2 cis (7pi/6)

6 0
3 years ago
Read 2 more answers
A group of students were surveyed to find out if they like watching television or reading during their free time. The results of
slava [35]

Answer:

dis dude giving me lecture rn so c\ant answer the best

Step-by-step explanation:sheeesh
(23423)

6 0
2 years ago
The expression (x2 + 16x + 64) – (x + 8)(x – 4) can be rewritten as k(x + 8). What is the value of k? k =
9966 [12]

expanding \\  {x}^{2}  + 16x + 64 - ( {x}^{2}  + 4x - 32)  \\ distributing \:  - 1 \\  {x}^{2}  + 16x + 64 -  {x}^{2}  - 4x + 32 \\ 12x + 96 \\ take \: a \: factor \: of \: 12 \\ 12(x + 8) \\ so \: k = 12
5 0
3 years ago
Other questions:
  • Which situation is represented by the equation?
    9·2 answers
  • What value of x is in the solution set of 2(3x – 1) ≥ 4x – 6?
    6·2 answers
  • What is the sum of 1/9, 2/3, and 5/18?<br> A. 19/18<br> B.4/15<br> C. 12/9<br> D. 8/20
    13·1 answer
  • You want to find the mean weight of the apples in a barrel. what do you need to do?
    8·1 answer
  • Expand and simplify (4x +3)(2x - 5
    5·2 answers
  • A box office sold 147,523 tickets for an auto race.
    5·1 answer
  • The total cost C of bulk jelly beans varies directly as the number of pounds p. If
    15·1 answer
  • Given the lengths of the sides which of the following would NOT be a right triangle?
    13·1 answer
  • - 3(1 – n) =-6 - 6n<br> Step by step please if possible
    6·1 answer
  • How do you factor 125-x^3?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!