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
sattari [20]
3 years ago
14

Which of the following equations correctly represents the law of cosines?

Mathematics
1 answer:
dusya [7]3 years ago
7 0

Answer:

C

Step-by-step explanation:

You might be interested in
Lucy Baker is analyzing demographic characteristics of two television programs: COPS (population 1) and 60 Minutes (population 2
drek231 [11]

Answer and Explanation:

Her alternative hypothesis is that there is some difference between the means of the ages of the audiences of the two television programs. That is, the mean ages of the two audiences are not the same.

If the mean of the ages of the audiences of television programme 1 (COPS) is xbar₁

And the mean of the ages of the audiences of the television programme 2 (60 minutes) is xbar₂

Her alternative hypothesis can be represented mathematically as

xbar₁ - xbar₂ ≠ 0

7 0
3 years ago
PLZ NEED HELP Reduce this algebraic fraction.36x^5 y^8 z^10/15x^5 y^7 z^2
kvasek [131]
36/15  = 12/5
x^5 / x^5 = 1
y^8 / y^7 = y
z^10 / z^2 = z^8

Answer is 12yz^8/5
7 0
3 years ago
Read 2 more answers
A total of $10,000 is invested in two mutual funds. The first account yields 5% and the second account yields 6%. How much was i
Aleks [24]

Answer:

$2,500 was invested in the first account while $7,500 was invested in the second account

Step-by-step explanation:

Here in this question, we want to find the amount which was invested in each of the accounts, given their individual interest rates and the total amount that was accorded as interest from the two investments

Now, since we do not know the amount invested , we shall be representing them with variables.

Let the amount invested in the first account be $x and the amount invested in the second account be $y

Since the total amount invested is $10,000, this means that the summation of both gives $10,000

Mathematically;

x + y = 10,000 ••••••(i)

now for the $x, we have an interest rate of 5%

This mathematically translates to an interest value of 5/100 * x = 5x/100

For the $y, we have an interest rate of 6% and this mathematically translates to a value of 6/100 * y= 6y/100

The addition of both interests, gives 575

Thus mathematically;

5x/100 + 6y/100 = 575

Multiplying through by 100, we have

5x + 6y = 57500 •••••••••(ii)

From 1, we can have x = 10,000-y

let’s substitute this into equation ii

5(10,000-y) + 6y = 57500

50,000-5y + 6y = 57500

50,000 + y = 57500

y = 57500-50,000

y = 7,500

Recall;

x = 10,000-y

so we have;

x = 10,000-7500 = 2,500

3 0
3 years ago
What is the value of the expression |x| + |y + z| when x = –6, y = –3, and z = –5?
mart [117]
|-6| + |-3 + (-5)|

6 + |-8|

6 + 8

14
8 0
3 years ago
What is -0.135 and -4.06 as fractions in their simplest forms? ​
andre [41]

Answer:

-0.135= -27/200 and -4.06= - 4 3/50

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • I need help with this problem
    11·1 answer
  • Hilda wants a rectangular garden to have an area of 20 square feet. She will put a fence around the garden. What is the least am
    8·2 answers
  • Juan say is that a store of a over charged him on the price of the video game he bought he saw that the price was marked 20% of
    7·1 answer
  • Rick traveled 23 of the way from his parents' house to his college dorm. He has driven 294 miles. What is the total distance bet
    9·1 answer
  • Select the correct answer
    13·1 answer
  • According to your graphing calculator, what is the approximate solution to the trigonometric inequality cot(x)> -7/8 over the
    9·2 answers
  • F(x)= x+3<br> h(x)= x^2+4<br><br> Find (f•h)(x)
    6·1 answer
  • *I’ll give brainliest* Find the area of this triangle. Round to
    6·2 answers
  • ......................
    14·2 answers
  • A new Outdoor Recreation Center is being built in Hadleyville. The perimeter of the rectangular playing field is 318 yards. The
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!