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
jek_recluse [69]
3 years ago
8

Find the value of cos C rounded to the nearest hundredth, if necessary

Mathematics
1 answer:
Sindrei [870]3 years ago
6 0

\bold{\frac{5}{13} or 0.38}

Answer:

Solution given:

here

by using Pythagoras law

hypotenuse =

\displaystyle\sqrt{adjacent ²+opposite ²}\\=\sqrt{15²+36²}=39

Cos C=\frac{adjacent} {hypotenuse}=\frac{15}{39}=\frac{5}{13} or{0.38}

You might be interested in
F(x)= 3x^2+5x-8. Solve the quadratic equation
7nadin3 [17]

Answer:

             \bold{x_1=1\ ,\quad x_2=-\dfrac83}

Step-by-step explanation:

3x^2+5x-8=0\quad\implies\quad a=3\,,\ b=5\,,\ c=-8\\\\x=\dfrac{-5\pm\sqrt{5^2-4(3)(-8)}}{2\cdot3}=\dfrac{-5\pm\sqrt{25+96}}{6}=\dfrac{-5\pm\sqrt{121}}{6}\\\\ x_1=\dfrac{-5+11}{6}=1\ ,\qquad x_2=\dfrac{-5-11}{6}=\dfrac{-16}6=-\dfrac83

7 0
3 years ago
1/3x+y=4<br> how to solve pls hlep
PolarNik [594]

Answer:

Y= 1/3-4

Step-by-step explanation:

You just rearrange it to the y=mx+b, and 4 is B, while 1/3 is M

5 0
3 years ago
Sally collects stamps. Of all her stamps,
Mariulka [41]

Answer:

200 stamps

Step-by-step explanation:

Divide the 90 stamps by 45: The result is 2; it's equal to 1% of the total number of stamps. You then multiply it by 100 to get the full amount, which is 200 stamps.

4 0
3 years ago
Read 2 more answers
A line crosses the coordinates (-3,5) and (4, -2). What is the slope-
NeTakaya

Answer:

y=-x+8

Step-by-step explanation:

y = mx + b is the basic formula

use the formula y2-y1/x2-x1 to get the slope to get m

-2-5/4-(-3)

-7/7

-1

then use the point slope formula y-y₁=m(x-x₁)

y-5=-1(x-(-3)

y-5=-1x+3

y=-x+8

6 0
3 years ago
Ben scores 56 out of 79 marks in a maths test.
sesenic [268]
Answer: 70.8%

56 divided by 79= 0.708
0.708x100=70.8
4 0
3 years ago
Other questions:
  • Cost equation <br> Y=10x + 15<br> Y=25x + 8<br> At what point does these cost the same.
    8·1 answer
  • A survey concluded that 60% of cars going through the Lomonosov street encounters traffic jam. After installing a new traffic li
    13·2 answers
  • How do you find 5% of 100 on a calculator?
    9·1 answer
  • 18 times what is 504
    8·2 answers
  • Lisa wants to frame her little brothers drawing as a gift to her mother's a rectangular drawing is 43.5 centimeters by 934 milli
    14·2 answers
  • What is the area of the figure?<br><br> Enter your answer in the box.<br><br> 400<br> in²
    7·2 answers
  • Factor the expression completely.<br> 56x - 64
    13·1 answer
  • All of the following equations are equivalent except? -5 (x - 1 ), -5x + 5, 5 - 5x, (5-5) x
    8·1 answer
  • Eric is playing a video game. At a cerain point in the game, he has 3,150 points. then the following events happen, in order:
    14·2 answers
  • HELP PLEase ASAP:}}}}}
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!