Ask question

Ask question

All categories

2 years ago

9

Which equation correctly applies the law of cosines to solve for an unknown angle measure?

2 answers:

Harman [31]2 years ago

8 0

The law of cosines is:
c² = a² + b² - 2abCos(C)
Therefore, in order to apply this law, we must know the value of two adjacent sides, represented by a and b here, and the value of their subtended angle, represented by C.

Usimov [2.4K]2 years ago

6 0

Answer:

Which equation correctly applies the law of cosines to solve for an unknown angle measure?

82 = 72 + 112 – 2(7)(11)cos(P) aka D

Step-by-step explanation:

I got this right on edg for Geometry 1C-2 :p

You might be interested in

HIJK is a parallelogram because the midpoint of both diagonals is ____ which means the diagonals bisect each other.

just olya [345]

ANSWER

The midpoint of both diagonals is

$(1,0)$
EXPLANATION

We can use either diagonals to determine the midpoint.

We use the midpoint formula

$( \frac{x_1 + x_2}{2} , \frac{y_1 + y_2}{2} )$

Let us use the first diagonals H(-2,2) and J(4,-2)

$( \frac{ - 2 + 4}{2} , \frac{ - 2+ 2}{2} )$

$( \frac{ 2}{2} , \frac{ 0}{2} )$

$( 1, 0)$

Using the second diagonals also gives,

$( \frac{ - 2 + 4}{2} , \frac{ - 3+ 3}{2} )$

$( \frac{ 2}{2} , \frac{ 0}{2} )$

$( 1, 0)$

4 0

2 years ago

Read 2 more answers

Simplify x+2/x^2-6x-16 divided by 1/9x<br>a. 10x/x+4<br>b. x+4<br>c. 10x^2(x+2)/x+6<br>d. 9x/x-8

mel-nik [20]

The answer for x^2-6x-16 is (x-8) (x+2) or x = -2

8 0

2 years ago

Which expression represents a factorization of 32m+56mp

Lana71 [14]

8m(4+7p). (The greatest common factor is 8.).

3 0

2 years ago

Read 2 more answers

Roberto wants to display his 18 cards in an album. Some pages hold 2 cards and others hold 3 cards. How many different ways can

Murrr4er [49]

6 pages of 3; 4 pages of 3 and 3 pages of 2; 2 pages of 3 and 6 pages of 2; 9 pages of 2. There are 4 ways to display his cards. The problem sentence is 18=2x+3y

5 0

2 years ago

Read 2 more answers

The weights of cars passing over a bridge have a mean of 3,550 pounds and standard deviation of 870 pounds. Assume that the weig

Annette [7]

Answer:

0.24315

Step-by-step explanation:

Using the z score formula to solve this question

z = (x - μ) / σ,

Such that:

x = raw score

μ = population mean

σ = population standard deviation.

From the question:

x = 3000

μ = 3550

σ = 870

z = (3000 - 3550) / 870

z = -550/870

z = -0.6962

Using the z score table as well as probability calculator(as requested in the question to find the z score)

The probability of having less than 3000 is obtained as:

P(x<3000) = 0.24315

7 0

2 years ago