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
IrinaK [193]
2 years ago
14

Meet Id912 037 6469pass121join this on Z.00.M​

Mathematics
1 answer:
Yuki888 [10]2 years ago
3 0
I did and u left???
You might be interested in
Factor:<br> -2 +8=-20<br> THANKS IN ADVANCE!!!
Anettt [7]

Answer:

-2 +8=-20 False

Step-by-step explanation:

Simplify -2 +8 --> 6

6= -20 is False

^      ^

sides arent equal

4 0
2 years ago
Find the missing value to the nearest whole number. sin17∘=x/7
wlad13 [49]

Answer:

2

Step-by-step explanation:

sin 17° = x/7

(sin 17°) 7 = (x/7)7

x = sin 17° (7)

x = 0.292371704722737 (7)

x = 2.046601933059157

x ≈ 2

6 0
3 years ago
Can someone help me please
Lisa [10]

Answer:

perimeter is 12x-6

Step-by-step explanation:

perimeter is the sum of all sides

3(x+2) + 2x+11 + 7x-23

distribute the 3 in the first term, then combine 'like terms'

3x+6 + 2x+11 + 7x-23

3x+2x+7x + 6+11+(-23)

12x-6

4 0
2 years ago
Read 2 more answers
Please explain if you can how to do it or show your steps
sesenic [268]

Answer:

Step-by-step explanation:

Idk, sorry dude

8 0
3 years ago
Item 7
Mariulka [41]

Answer:

A = 74.7^\circ

B = 42.5^\circ

C = 62.8^\circ

Step-by-step explanation:

Given

A = (-1,2) \to (x_1,y_1)

B = (2,8) \to (x_2,y_2)

C = (4,1) \to (x_3,y_3)

Required

The measure of each angle

First, we calculate the length of the three sides of the triangle.

This is calculated using distance formula

d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2

For AB

A = (-1,2) \to (x_1,y_1)

B = (2,8) \to (x_2,y_2)

d = \sqrt{(-1 - 2)^2 + (2 - 8)^2

d = \sqrt{(-3)^2 + (-6)^2

d = \sqrt{45

So:

AB = \sqrt{45

For BC

B = (2,8) \to (x_2,y_2)

C = (4,1) \to (x_3,y_3)

BC = \sqrt{(2 - 4)^2 + (8 - 1)^2

BC = \sqrt{(-2)^2 + (7)^2

BC = \sqrt{53

For AC

A = (-1,2) \to (x_1,y_1)

C = (4,1) \to (x_3,y_3)

AC = \sqrt{(-1 - 4)^2 + (2 - 1)^2

AC = \sqrt{(-5)^2 + (1)^2

AC = \sqrt{26

So, we have:

AB = \sqrt{45

BC = \sqrt{53

AC = \sqrt{26

By representation

AB \to c

BC \to a

AC \to b

So, we have:

a = \sqrt{53

b = \sqrt{26

c = \sqrt{45

By cosine laws, the angles are calculated using:

a^2 = b^2 + c^2 -2bc \cos A

b^2 = a^2 + c^2 -2ac \cos B

c^2 = a^2 + b^2 -2ab\ cos C

a^2 = b^2 + c^2 -2bc \cos A

(\sqrt{53})^2 = (\sqrt{26})^2 +(\sqrt{45})^2 - 2 * (\sqrt{26}) +(\sqrt{45}) * \cos A

53 = 26 +45 - 2 * 34.21 * \cos A

53 = 26 +45 - 68.42 * \cos A

Collect like terms

53 - 26 -45 = - 68.42 * \cos A

-18 = - 68.42 * \cos A

Solve for \cos A

\cos A =\frac{-18}{-68.42}

\cos A =0.2631

Take arc cos of both sides

A =\cos^{-1}(0.2631)

A = 74.7^\circ

b^2 = a^2 + c^2 -2ac \cos B

(\sqrt{26})^2 = (\sqrt{53})^2 +(\sqrt{45})^2 - 2 * (\sqrt{53}) +(\sqrt{45}) * \cos B

26 = 53 +45 -97.67 * \cos B

Collect like terms

26 - 53 -45= -97.67 * \cos B

-72= -97.67 * \cos B

Solve for \cos B

\cos B = \frac{-72}{-97.67}

\cos B = 0.7372

Take arc cos of both sides

B = \cos^{-1}(0.7372)

B = 42.5^\circ

For the third angle, we use:

A + B + C = 180 --- angles in a triangle

Make C the subject

C = 180 - A -B

C = 180 - 74.7 -42.5

C = 62.8^\circ

8 0
2 years ago
Other questions:
  • Steve ate 1/ 4 of a pizza, then Scott ate 1/ 3 of the pizza.
    9·2 answers
  • Jim has 2 gems. He got 2 more on Monday and 5 more on Tuesday. How many does he have now?
    12·2 answers
  • The tree diagram below shows the sizes and colors of shirts sold at a store. How many different choices of shirts does the store
    8·2 answers
  • The moon is 240,000 miles from earth . what is the order of magnitude of this number
    14·1 answer
  • It takes 90 pounds of seed to completely plant an 11 -acre field.
    10·1 answer
  • IF YOU ANSWER YOU WILL RECEIVE THE BRAINLIEST! HURRYYYY
    9·2 answers
  • Please help me i’m confused
    7·1 answer
  • Caleb earns points on his credit card that he uses toward future puchases. He earns four points per dollar spent on flights, two
    6·1 answer
  • Solve the measurement conversion problem. 1g= 1,000mg
    13·2 answers
  • 2x^{2} + 20x + 48Completely factor the given polynomial, if possible. If the polynomial cannot be factored write "not factorable
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!