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
Nikolay [14]
2 years ago
15

Let f(x) = cos(x). Use Addition or Subtraction Formulas to show the following.

Mathematics
1 answer:
uysha [10]2 years ago
7 0

Answer:

First blank is cos(h)cos(x)

Second blank is sin(x)

Step-by-step explanation:

Look up the identity and apply it here

You might be interested in
Johnny can read 10 pages of a book in 15 minutes.
Svetach [21]

Answer:

Its C

Step-by-step explanation:

Im really good with answers

5 0
3 years ago
write a function that has a greater rate of change than one function but a smaller rate of change than the other function
LenaWriter [7]
The function y = 5x has a rate of change that is in between the equation y = 4x and y = 6x.

In an equation, the rate of change is also called the slope. It is the amount that a number is increasing by. We put that value in front of the x in most equations.

In the equal that I gave, the 5 is in between the rates of 4 and 6.
4 0
3 years ago
Use completing the square to solve the equation x2 - 10x = -8.
Kay [80]

Answer:

x^2 - 10x + 25 = 17

Step-by-step explanation:

Please use " ^ " to denote exponentation:

x^2 - 10x = -8

x^2 - 10x + 25 = 17

x^2 - 10x + 25 = -8

x^2 - 10x - 25 = -33

Begin with x^2 - 10x = -8.  Here's the process for completing the square:

1.  Take half of the coefficient of x and square the result:

    (1/2)(-10) = -5, and then (-5)^2 = + 25

2.  Add this 25 to the first two terms of x^2 - 10x = -8 and also to the      constant -8:    x^2 - 10x + 25 = -8 + 25, or     x^2 - 10x + 25 = 17

3.  Match this result to one of the given possible answers.  Turns out that the given possible answer matching our result is the first one:

x^2 - 10x + 25 = 17

     

7 0
3 years ago
What is the value of x will make the inequality true. 5x - 10 < 75?
Ipatiy [6.2K]

Answer:

x=16 or any value less than 16.

Step-by-step explanation:

16x5=80 and subtract 10 you get 70. X has to equal a value that makes the whole left side of the equation "smaller" than the irght side, and 16 or any value less than that would accomplsish this.

5 0
3 years ago
Read 2 more answers
ANSWER PLEASE *50 POINTS*
zvonat [6]

If a football player runs 5/6 of a mile every 3/4th of a hour, that means every 1/4th a hour he runs 1.5/6th of a mile.

That means every 15 minutes the football player runs .2 of a mile. That means that every hour he runs :

0.8 of a mile!

3 0
3 years ago
Other questions:
  • Evaluate the expression when c=3 and d=35 d-6c
    12·1 answer
  • Assume the availability of a method named makeStars that can be passed a non-negative integer n and that returns a String of n a
    8·1 answer
  • Find the area of the circle d=10 in.
    8·2 answers
  • What is the positive root of the equation x ^2 + 5x = 150?
    12·2 answers
  • The line m has a slope of 4. What is the slope of a line perpendicular to line m?
    11·2 answers
  • A playground slide has a price of $770. With sales tax, it will cost $847. What is the sales tax percentage?
    11·1 answer
  • Need help asap<br> will give brainly
    8·2 answers
  • Hector's parents started saving money for his college education when Hector was six. If they save $400 per month at a credit uni
    13·1 answer
  • Given that
    8·1 answer
  • Evaluate the following expression: 12 – 10 + 5 - 11. Remember to show your work
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!