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crimeas [40]
3 years ago
12

Plz help i beg i will give 20 points and give brainlist

Mathematics
2 answers:
Vlada [557]3 years ago
5 0
His error was he put 180 rather than 90 because it’s and acute angle so the number you minus by would be 90 done and then you finish the equation like he did
Lubov Fominskaja [6]3 years ago
4 0
It’s a 90 degree angle. So the equation so be 28+2x =90 and find x from there.


28+2x=90
-28 -28
2x= 62
x=31
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Why must trapezoids be congruent
fredd [130]
The diagonals of a trapezoid are only congruent (have the same length) if the trapezoid is an isosceles trapezoid.
5 0
3 years ago
Steve reaches into a bag with 5 marbles 3 yellow marbles and 2 green marbles and randomly selects one the he puts the marble bac
Bezzdna [24]

Answer:

Independent

Step-by-step explanation:

The reliance of an event on the outcine of another event gives rise to a dependent event. For any two or more event, whereby the outcome of event A has no effect on the possible outcome of event B, then such scenario is termed as being Independent. In the scenario described above, the outcome oof Sam's pick does not depend on the outcine of Steve's pick. This is because, once Steve makes his selection, the marble is returned into the box before Sam makes his own selection.Therefore, no matter the color of marble picked by Steven, it will have no bearing on the outcome of Sam's pick.

5 0
2 years ago
Find f '(a).<br> f(x) = 4x2 − 4x + 3
Vinvika [58]
Use the power rule
  d(x^n)/dx = n·x^(n-1)
to form the derivative.
  f'(x) = 4·2x -4
  f'(x) = 8x - 4

Now, substitute "a" for "x" to find f'(a):
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3 0
3 years ago
Nikki says that a number and its absolute
AVprozaik [17]

Answer:

The absolute value of any number will always be positive meaning that if you start with a positive number the sum of its absolute value will not be zero. Although if you start out with a negative number the sum of its absolute value will be zero.

Step-by-step explanation:

8 0
3 years ago
Given the degree of measure of angle KJH is 66 degrees find the measure in radians​
Mrrafil [7]

9514 1404 393

Answer:

  E)  0.366π

Step-by-step explanation:

There are π/180 radians in a degree.

  66° = 66°(π/180°) = (66/180)π = 11/30π ≈ 0.366π radians

__

11/30 = 0.366... repeating, so would normally be rounded to 0.367

3 0
3 years ago
Read 2 more answers
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