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
Fofino [41]
2 years ago
5

What is m 2DEC? In square ABCD, we know: AB = 6 and BE = 4.2

Mathematics
1 answer:
Alex787 [66]2 years ago
3 0

Answer:

As mentioned ABCD is a square

So <DEC is always 90 degree

You might be interested in
Here are the equations for 4
Kipish [7]

Answer:

Please see attached graph.

Step-by-step explanation:

The equations for straight lines are given as:

i) y = x +4

ii) y= x-4

Yon can form a table for values of x and y that are true for an equation and use these values as coordinates ( x,y ) to plot the graphs and view the lines to select the correct labels for the equations.  

For i)

y= x+4

x       y      coordinates

-3       1          (-3,1 )

-2        2         (-2,2)

-1         3          (-1,3)

0          4         ( 0,4)

1           5          ( 1,5)

2           6         ( 2,6)

3            7         ( 3,7)

Plot the points on a graph tool and draw the line. Do the same for the second equation to view both graphs as shown in the attached graph.

6 0
2 years ago
This connects to the last one I did
vichka [17]
-4x+3 and -2y idk if that's completely right tho
4 0
2 years ago
Read 2 more answers
A system consisting of one original unit plus a spare can function for a random amount of time X. If the density of Xis given (i
eimsori [14]

Answer:

0.2397

Step-by-step explanation:

Given data:

fX(x) = Cxe^(−x/2) if x >0 0 otherwise, where C > 0 is some constant.

The probability that the system functions for at least 5 months

= 0.2397

attached below is a detailed solution

3 0
2 years ago
In the line 3y=4x-1 and 9y=x+3 are parallel to each other the value of q is
jonny [76]
Do you mean the value of y? there is no q in these equations.
5 0
2 years ago
Read 2 more answers
Water is leaking out of an inverted conical tank at a rate of 6800.0 cubic centimeters per min at the same time that water is be
m_a_m_a [10]

Answer:

6.82 mt^3/min

Step-by-step explanation:

By congruence of triangles, the radius r of the cone base when its height is 1 meter satisfies the relation

r/1 = 2.5/6

(See picture attached)

So, r = 0.4166 meters when the water is 1 meter high.

The volume of a cone with radius of the base = R is given by

V=\frac{\pi R^2h}{3}

So, the volume of water when it is 1 meter high is

V=\frac{\pi* 0.(4166)^2}{3}=0.1817\;mt^3

One minute later, the height of the water is 1 meter + 30 centimeters = 1.30 mt

The radius now satisfies

r/1.3 = 2.5/6

and now the radius of the base is

r = 0.5416 mt

and the new volume of water is 0.3071\;mt^3

So, the water is raising at a speed of

0.3071-0.1871 = 0.12 mt^3/min

This speed equals the difference between the water being pumped and the water leaking,

So,  

<em>0.12 = Speed of water being pumped -6.8  </em>

and

Speed of water being pumped = 6.8+0.12 = 6.82 mt^3/min

8 0
2 years ago
Other questions:
  • The window of a burning building is 24 meters above the ground. the base of a ladder is placed 10 meters from the building. How
    15·1 answer
  • A line passes through the points (2,2) and (5,8). What is its equation in slope-intercept form?
    6·1 answer
  • Please dont steal points. i will report.
    9·2 answers
  • Re-write the quadratic function below in Standard Form<br> y =4(x + 5)2 – 3
    6·2 answers
  • What is the volume of a square prism with a base area of 25 square centimeters and a height of 6 centimeters?
    7·1 answer
  • Please do at least two whole screenshots. Thx, I'm going to spam this now.
    12·1 answer
  • The function f(x) = -x^2 + 4x - 3 is graphed in the xy-coordinate plane as <br> shown
    8·1 answer
  • What statement about the angles measures is true ( PLS HELP ME)
    14·1 answer
  • Saving?
    12·1 answer
  • Find the surface area of the figure
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!