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
Ivahew [28]
3 years ago
13

Help with trigonometry​

Mathematics
1 answer:
diamong [38]3 years ago
4 0

Answer:

cos ∠CBD = - 4√41 / 41

Step-by-step explanation:

AB = 4      ΔABC = (4 x AC) / 2 = 10

AC = 5

BC = √5² + 4² = √41

cos ∠CBD = cos (180° - ∠CBA) = cos 180° cos ∠CBA + sin 180° sin ∠CBA

(cos 180° = - 1          sin 180° = 0       cos ∠CBA = 4 / √41 )

cos ∠CBD = (-1) x cos  ∠CBA = - 4 / √41 = - 4√41 / 41

You might be interested in
Correct answer gets brainlest, The answer is not 14-16 i already tried it
Leokris [45]

Answer:

its 11

Step-by-step explanation:

the mode is the difference between the highest and lowest date input

19-8=11

6 0
2 years ago
Read 2 more answers
PLEASE HELP! NO LINKS OR YOU WILL BE REPORTED!! WILL GIVE BRAINIEST!!!!!!!
Ket [755]
The measures of
1=105 degrees and 2=75 degrees
5 0
3 years ago
Read 2 more answers
find the interest earned on an account with $450 principal, and interest rate of 6% over a period of 8 years
puteri [66]
 
                 8
450(1+.06)  = 717.23
4 0
3 years ago
If gasoline costs 2.14 per gallon and you drive 500 miles in a car that gets 30 mpg, what is the cost of gasoline
Vlad [161]

Answer:

35.7

Step-by-step explanation:

First, you would calculate how many gallons of gasoline the car gets. To do this, divide your total mileage of 500 miles by the mpg (30). Now you know how many gallons of gasoline will be used by the car. After calculating, you get 16.67. Multiply this by how much it costs per gallon of gasoline, and you get an answer of $35.7.

8 0
3 years ago
What is the answer to (4.575 ÷ 275) × 2
const2013 [10]

Answer:

0.0334

Step-by-step explanation:

(4.575 ÷ 275) × 2

0.0167 * 2

Hope this helps!

6 0
2 years ago
Other questions:
  • Simplify.<br><br> (3x8z2)5<br><br> A. 15x40z10<br> B. 15x13z10<br> C. 243x40z10<br> D. 243x13z7
    11·1 answer
  • Simplify. <br> x0yz-3<br> 1. xy/x^3<br> 2. y/z^3<br> 3. x/yz^3<br> 4. 1/yz^3
    13·2 answers
  • 12 Pts + Brainliest
    12·1 answer
  • F(h) = -2(h - 4)2 + 22.​
    14·1 answer
  • What value of k makes this equation true? ANSWER ASSAP<br><br><br><br> 39 = k - 11
    5·2 answers
  • What is the approximate surface area of a cylinder that's base has a radius of 2, and it's lateral rectangle has a length of 6.2
    9·1 answer
  • Answer correct for brainliest!!
    6·2 answers
  • If 57 is added to a number, it will be 4 times as large as it was originally. Find the number.
    13·1 answer
  • Simplify 3(6-3) -2x2 + 15 /5
    10·1 answer
  • Help needed asap! Must be answered using interval notation!
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!