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
zimovet [89]
2 years ago
9

Triangles-- find the M<ECD if ​ABC angels are 31 degress.picture added​

Mathematics
1 answer:
never [62]2 years ago
5 0

Answer:

Step-by-step explanation:

180° - 2 × 31° = 118° is measure of an angle which is vertical to ∠ECD ⇒

m∠ECD = 118°

You might be interested in
What is YZ?<br><br> Enter your answer as a decimal in the box.
maks197457 [2]

Answer:

YZ = 18.4 in

Step-by-step explanation:

The midsegment YZ is half the length of the third side VX , then

YZ = \frac{1}{2} × 36.4 = 18.2

8 0
3 years ago
Read 2 more answers
Find the distance between each pair of points (-5,-8) (-5,9)
sleet_krkn [62]
The distance between each pair is 17
5 0
3 years ago
What is the interval of increase and decrease of f(x)= (x-4)^2 -1
nevsk [136]

Answer:

(−∞,4)

Step-by-step explanation:

Explanation:

To determine the interval that f(x) is increasing.

increasing when f'(x)>0f'(x)=−2(x−4)← using chain rule

solve −2(x−4)>0

⇒−2x+8>0

⇒x<4

interval is (−∞,4)

graph{-(x-4)^2-3 [-8.89, 8.89, -4.445, 4.44]}

3 0
2 years ago
12x−39≤9 AND−4x+3&lt;−6, just solving for x<br><br> please answer ASAP
kari74 [83]

<u>Answer:</u>

Solving for x in 12x − 39 ≤ 9 and −4x + 3 < −6 we get 2.25 < x ≤ 4

<u>Solution</u>:

Need to find the value of x which satisfies following two given expressions

12x − 39 ≤ 9      ------(1)

−4x + 3 < −6     ------ (2)

Lets first solve expression (1)

12x − 39 ≤ 9  

Adding 39 on both sides , we get

12x−39 + 39  ≤ 9  +39

=>12x ≤ 48

=> x  ≤ 48/12

=> x ≤ 4    

Now solving expression (2)

−4x+3<−6      

=> -4x < -6 – 3

=> -4x < -9  

=> 4x > 9

=> x > 9/4

=> x > 2.25

So from solution of expression (1) and (2) , we get x ≤ 4   and x > 2.25

Hence required value of x is 2.25 < x ≤ 4.  

7 0
3 years ago
Use the figure to calculate the volume of a section of round sheet metal pipe. The volume of the section shown = ________ cu in
rusak2 [61]

Answer: 653.12 cu in

Step-by-step explanation: had it on a test

6 0
2 years ago
Other questions:
  • CAN SOMEONE PLEASE HELP
    10·1 answer
  • What shape has 4 sides that are different lengths
    6·2 answers
  • Any ideas on how to find the value of 'x' on either 13 or 16? Anything helps!
    14·1 answer
  • Only need help with number 7
    14·2 answers
  • Jason is building a 1 : 180 scale model of a real castle. his model has a rectangular base that is 3 feet wide and 4 feet long.w
    13·1 answer
  • A tree measured 18 1/2 feet tall. over the next 7 1/2 years grew to be 63 1/2 feet tall.During the 7 1/2 years,what was the aver
    6·2 answers
  • Nicolas bought a map of the city uses a scale of 1 inch to 8 miles Nickolas his house and school are 1 1 over 2 inches apart on
    8·1 answer
  • What could be shown about the diagonals of parallelogram PQRS to compare the proof that diagonals of a parallelogram bisect each
    10·1 answer
  • Hurry, please?<br><br> Its math thats all
    13·2 answers
  • Simplify to create an equivalent expression.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!