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Arlecino [84]
3 years ago
15

HEEEEEELPPP NO ONE IS ANSWERING THIS QUESTION PLEASE HELP PLEASE

Mathematics
2 answers:
nalin [4]3 years ago
5 0

Answer:

Step-by-step explanation:

Mila [183]3 years ago
3 0

Answer:

x = 22.5°

Step-by-step explanation:

DE // AB     ∠DEA ≅ ∠EAB = 2x

ΔEAB: interior angles  (180°-4x) + 2x + (180°-6x) = 180°

8x = 180°

x = 22.5°

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use the substitution method to solve the system of equations choose the correct order pair. 3x+y=10 y=x-2
shutvik [7]
3x+(x-2)=10
4x=12
x=12/4=3

y=x-2=3-2=1

so, x=3 and y=1

Answer: (3;1)
3 0
3 years ago
Read 2 more answers
What is the solution of the system of equations? -4x+3y=-12 -2x+3y=-18
Kisachek [45]

Answer:

Step-by-step explanation:

I've enclosed a graph to show you that there is one solution.

-4x + 3y = - 12

<u>- 2x + 3y = - 18</u><em><u>  </u></em><em>         </em>Subtract

-2x = 6                        Divide by - 2

-2x/-2 = 6/-2

x = - 3

- 4x + 3y = - 12

-4(-3) + 3y = - 12

12 + 3y = - 12

3y = - 12 - 12

3y = - 24

3y/3 = - 24/3

y = - 8

Which is exactly what the graph shows.

You can tell immediately that this has 1 or more solutions just by looking at the number in front of x and y in each each equation.

It's always a good idea to graph a question like this one. Desmos is a pretty good tool to use if you don't have a graphing calculator.

The y's are the same so you are 1/2 way home in saying what you did.

The x's are different so that means you have at least 1 solution.

7 0
3 years ago
A ball is thrown into the air with an upward velocity of 32 ft/s. Its height (h) in feet after t seconds is given by the functio
Natasha2012 [34]
For this case we have the following equation:
 h = -16t ^ 2 + 32t + 6
 Deriving we have:
 h '= -32t + 32
 We equal zero and clear t:
 -32t + 32 = 0
 32t = 32
 t = 32/32
 t = 1 s
 Then, the maximum height is given by:
 h (1) = -16 * (1) ^ 2 + 32 * (1) + 6
 h (1) = 22 feet
 Answer:
 
It takes the ball to reach its maximum height about:
 
t = 1 s
 
The ball's maximum height is:
 
h (1) = 22 feet
6 0
3 years ago
Could I have help with this question
skad [1K]
See, pls, this:
If ∠y=∠CBD, then in
ΔABX: ∠A=40°; ∠X=90° ⇒ ∠ B=180-(40+90)=50°.
∠B of ΔABX=∠CBD=∠y=50°.
Answer: 50°.
7 0
3 years ago
In triangle ABC, the measure of angle ABC is 42 degrees and the measure of angle BAC is 64. What is the measure of angle BCA? Wr
love history [14]

Answer:

Step-by-step explanation:

The sum of interior angles of a triangle = 180°

Therefore,  ∠ABC + ∠BAC + ∠BCA = 180°

                          ⇒ 42 + 64 + ∠BCA = 180°

                                           ⇒ ∠BCA = 180 - 42 - 64

6 0
2 years ago
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