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
BARSIC [14]
3 years ago
13

Find cosX and cosZ. Write each answer as a fraction and as a decimal. Round to four decimals places, if necessary. Fractions to

reduce and use /.

Mathematics
1 answer:
JulsSmile [24]3 years ago
3 0

Answer/Step-by-step explanation:

Recall the acronym, SOHCAHTOA.

✔️Cos X = adj/hyp (CAH)

Adj = 10

Hyp = 26

Cos X = 10/26

Simplify

Cos X = 5/13 (as a fraction)

Cos X = 0.3846 (as a decimal to 4 d.p)

✔️Cos Z = adj/hyp (CAH)

Adj = 24

Hyp = 26

Cos Z = 24/26

Cos Z = 12/13 (as a fraction)

Cos Z = 0.9231 (as a decimal to 4 d.p)

You might be interested in
I need emergency help I’ll mark you as brainlist
galben [10]

Answer:

352

Step-by-step explanation:

:)

:)

:)

4 0
3 years ago
Read 2 more answers
The washer in the image has an inner diameter of 1/4 inch. The outer diameter measures 3/4 inch, and the washer is 1/4 inch thic
Talja [164]

Answer:

  0.14 lb . . .  closest choice is 0.11 lb

Step-by-step explanation:

The inside and outside radii are 1/8 in and 3/8 in, respectively. Then the area of the top of the washer is ...

  A = π(R² -r²) = π((3/8)² -(1/8)²) = π(9/64 -1/64) = π/8 . . . square inches

The height of the stack of 5 washers will be 5×(1/4 in) = 5/4 in. So, the volume of material in the stack of washers is ...

  V = Bh = (π/8)(5/4) = 5π/32 . . . cubic inches

The weight of material is the product of volume and density, so is ...

  W = (5π/32 in³)(0.285 lb/in³) ≈ 0.1399 lb ≈ 0.14 lb

_____

<em>Comment on the question</em>

Since this answer does not correspond to any of the offered choices, we suggest you ask your teacher to work this out for you. We suspect they will have difficulty justifying any of the answer choices shown here. (0.11 lb corresponds to 4 washers, not 5.)

5 0
3 years ago
Given the functions a(x) = 3x − 12 and b(x) = x − 9, solve a[b(x)] and select the correct answer below.
Alexxx [7]
The answer is 3x-39 please tell the no wrong

8 0
3 years ago
Read 2 more answers
Anna completes a test that had 120 questions for a math competition. Each correct answer is worth +4 points, and each wrong answ
Sloan [31]

Answer:

40 correct and 80 incorrect

Step-by-step explanation:

40*4=160

80*2=160

8 0
3 years ago
Read 2 more answers
The line plot shows the ages of people taking a driving test at a certain station one day.
Umnica [9.8K]

Answer:

The answer is 32%

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • May someone help me plz? Thank you!
    12·2 answers
  • Jonna is 4 years older than her brother. Which of the following expressions shows the sum of their ages if b represents Jonna's
    8·1 answer
  • A box was 3/4 full of marbles. The box fell on the floor. Thirty marbles fell out. This was 20% of the marbles in the box. How m
    13·1 answer
  • X + y = -1<br> 4x - 2y = -16
    11·1 answer
  • Please help me i need help with this please give me the answer
    14·1 answer
  • Nicole is driving on a highway. She uses one gallon of gas every 20 miles she drives. The distance, D (in miles), she travels on
    14·1 answer
  • Can someone like help with this pleasee
    8·1 answer
  • 13 is 5% of what number?
    10·2 answers
  • <img src="https://tex.z-dn.net/?f=%5Cfrac%7Br%7D%7B6%7D%20%3D%208" id="TexFormula1" title="\frac{r}{6} = 8" alt="\frac{r}{6} = 8
    15·2 answers
  • Sal and Jen went to the store together, and each bought the same car stereo.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!