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
Natasha_Volkova [10]
2 years ago
12

Suppose a triangle has two sides of length 42 and 35, and that the angle

Mathematics
2 answers:
lys-0071 [83]2 years ago
6 0

yeah he/she is right ..................

maxonik [38]2 years ago
5 0

9514 1404 393

Answer:

  c = √(42² +35² -2·42·35·cos(120°))

Step-by-step explanation:

The third side can be found using the Law of Cosines. It will tell you ...

  c² = a² +b² -2ab·cos(C)

where C is the angle opposite the third side (c). For the given side lengths, then the third side can be found from ...

  c = √(42² +35² -2·42·35·cos(120°))

__

<em>Additional comment</em>

You have not provided answer choices to this "which ..." problem. So the above equation may be different from any on your list. We expect your answer choices may leave the equation in the form <em>c² = ...</em>.

You might be interested in
Solve with Quadratics
leonid [27]

Answer:

x = 1 ± \sqrt{6}

Step-by-step explanation:

Given

2x² - 4x = 10 ( divide through by 2 )

x² - 2x = 5

Using the method of completing the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(- 1)x + 1 = 5 + 1

(x - 1)² = 6 ( take the square root of both sides )

x - 1 = ± \sqrt{6} ( add 1 to both sides )

x = 1 ± \sqrt{6} ← exact solutions

6 0
3 years ago
HELP ME ASAP PLSLSLSS HELP MEEE IMA CRY
Mila [183]
I believe that the answer is AA similarity (A).
4 0
3 years ago
Which is better buy? 5 lb of flour for $0.90 or<br> 8 lb for $1.25
Ludmilka [50]
Well let’s see if there’s a least common multiple of 5 and 8. Since 40 is the least common mult. We will multiply 40 x .90 and 40 x 1.25 . 40x.90 is 36 while 40x1.25 is 50. It’s better to buy eight pounds for 1.25!
4 0
2 years ago
Read 2 more answers
Blanca jogged 8 days last month. She jogged 1.25 miles on each of these days and burned 140 calories per mile while jogging.
Marat540 [252]
Answer: 1,400 calories



Bianca jogged 1.25 miles per day for 8 days. so 1.25*8 would equal 10 miles.

Since she jogged 10 miles and burned 140 calories per mile, if we multiply 10*140, we would get 1,400.

So last month, she lost 1,400 calories.
6 0
2 years ago
Give a direct proof that the sum an even integer and an odd integer is odd.
mina [271]
Even integer: 2 x a, where a is a  natural number without 0;
Odd integer : 2 x b + 1 , where b is a natural number;
So, 2 x a + 2 x b+ 1 = 2 x ( a + b ) + 1, which is an odd integer.
5 0
3 years ago
Other questions:
  • 90 is n multiplied by 123 write equation (IXL)
    9·1 answer
  • If given the edge of a cube blank to determine the volume
    10·1 answer
  • Are the triangles similar? If so, what is the scale factor of ΔRPQ to ΔVAQ?
    15·2 answers
  • Whats the elimination of 3x-4y=2<br> 2x-4y=-4
    11·1 answer
  • Write a quadratic function f whose zeros are -2 and -9
    13·2 answers
  • Directions: Fill in all blank spaces in the table. Show all work below the table or on a separate sheet of paper. If needed, rou
    7·1 answer
  • HELP plssssssssssssssssssssssssssssssssssssssssssssssss
    10·2 answers
  • ¿Cómo se mide el grado de una ecuación algebraica?
    5·1 answer
  • The linear functions f(x) and g(x) are represented on the graph, where g(x) is a transformation of f(x):
    5·1 answer
  • A triangle has side lengths of 5 inches, 12 inches, and 15 inches. Every dimension is multiplied by 1/5 to form a new triangle.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!