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
frosja888 [35]
3 years ago
12

The equation sin (40 degree) equals StartFraction b Over 20 EndFraction can be used to determine the length of line segment AC.

Triangle A B C is shown. Angle A C B is a right angle. The length of side A C is b and the length of hypotenuse A B is 20 centimeters. What is the length of ? Round to the nearest tenth. 11.8 cm 12.9 cm 14.9 cm 15.3 cm
Mathematics
2 answers:
vazorg [7]3 years ago
6 0

Answer:

B. 12.9cm

Step-by-step explanation:

I presume we are asked to find the length of b

sin\alpha =\frac{opposite}{hypotenuse} \\sin 40^0=\frac{b}{20}\\b=20 X sin 40^0=12.85cm=12.9cm

antiseptic1488 [7]3 years ago
6 0

Answer:

B

Step-by-step explanation:

You might be interested in
Ebony bought 4 cans of Soup A for $6.00.
GREYUIT [131]
Soup b; no
soup c; yes
soup d; no
soup e; yes
7 0
3 years ago
the ratio of 7th graders to 8th grader at a school dance is 3 to 2. there are 54 7th graders at a dance. how many 8th graders ar
Georgia [21]
I just want u to know that u are loved
6 0
3 years ago
Can someone please help me out? It would really make me happier if you did.
asambeis [7]

Answer:

B) 8 and 24.

Step-by-step explanation:

Just by looking at the answer choices, since one number must be three times the other, we can determine that the correct answer is B.

Regardless, let's work this out mathematically. Let the first number be <em>a</em> and the second number be <em>b</em>.

Their difference is 16. Hence:

a-b=16

The first number is three times the second number. So:

a=3b

Substitute:

3b-b=16

Solve for <em>b</em>. Subtract:

2b=16

And divide both sides by two:

b=8

So, the second number is 8.

And since the first number is three times the second, the first number is 24.

Our answer is B as expected.

5 0
3 years ago
Joe is hiking a trail that is 30 miles long. after several days, he is two times as far from the beginning of the trail as he is
lora16 [44]
In order to answer this question let's suppose,
Joe is x miles from the beginning and y miles from the end. These assumptions are necessary to answer further:

Now,
x=2y
x+y=30
plugging in x=2y in the above equation
2y+y=30
3y=30
y=10

Hence, according to our calculations, Joe has to hike 10 miles further
5 0
3 years ago
Let f(x)=3x+2 and g(x)=5x-8 find all value of x for which f(x) &gt; g(x)
kirill115 [55]

Answer:

x < 5

Step-by-step explanation:

f(x)  > g(x) \\    <  =  > 3x + 2 > 5x + 2 \\  <  =  >  - 2x >  - 10 \\   <  =  > x < 5  \:( qed)

4 0
3 years ago
Other questions:
  • Need help with this question
    12·2 answers
  • What is the equation of the line that passes through (6, 1) and is perpendicular to the line y 3x+2? CI) At what angle do the li
    15·1 answer
  • What is 3-4+11+21-3? Best explained answer gets Brainliest!!!! Good luck :)
    12·2 answers
  • A piece of plywood was cut so it's length was 7 feet by 3 feet what is the perimeter of the wood
    8·2 answers
  • While John is traveling along a straight interstate highway, he notices that the mile marker reads 243 km. John travels until he
    10·1 answer
  • What three factors were used to create this product board 4 6 9 14 49
    7·1 answer
  • Help me please answer this question
    5·1 answer
  • A metal strip is being installed around a rectangular workbench that is 9 feet long and 4 feet wide. If the stripping costs ​$5
    7·1 answer
  • I need help with this, please.
    10·2 answers
  • Find the height (in meters) of a storage tank in the shape of a right circular cylinder that has a circumference measuring 4 m a
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!