Answer:
42°
Step-by-step explanation:
AD is a line
AEC and DEC are both 90°
AEB and CEB make up 90°
AEB+CEB=AEC substitute
AEB+48=90 Next use Subtraction property of equality
AEB=42
Hope this helps, if so please give me brainliest, it helps a lot. :)
Have a good day!
Polynomial equation is a equation which is formed with coefficients variables and exponents with basic mathematics operation and equality sign. The given option the option A matches correctly with the above polynomial equation which is,

Hence the option A is the correct option.
<h3>
Given information-</h3>
The given polynomial equation in the problem is,

<h3>
Polynomial equation </h3>
Polynomial equation is a equation which is formed with coefficients variables and exponents with basic mathematics operation and equality sign.
In the above polynomial equation the variable are<em> x </em>and <em>y </em>and the highest power of the variable <em>x</em> is four and highest power of the variable <em>y</em> is three.
Arrange the polynomial equation in the power of the variable <em>x. </em>Thus,

Arrange the polynomial equation in the power of the variable <em>y. </em>Thus,

From the given option the option A matches correctly with the above polynomial equation which is,

Thus the option A is the correct option.
Learn more about the polynomial equation here;
brainly.com/question/25958000
Answer: DB=31.66and EC=49.32
Step-by-step explanation:
Answer:
x=3.5
Step-by-step explanation:
6x-1=4x+6
6x-4x=6+1
2x=7
x=3.5
Answer:

Step-by-step explanation:
It is given that,
The average distance between the Earth and the Moon is 384 400 km.
We need to express in in standard form.
1 km = 1000 m
It means,
384400 km = 384400000 km
or
= 
Hence, the average distance between the Earth and the Moon is
.