Answer:
E) 35°, 70°.
Step-by-step explanation:
Given that the triangle has angles of a°, 2a° and 75°.
A triangle is a polygon shape that has three sides and three angles. The sum of angles in a triangle is 180°. There are different types of triangles such as scalene triangle, isosceles triangle, equilateral triangle e.t.c.
In the triangle:
a + 2a + 75 = 180° (sum of angles in a triangle)
3a + 75 = 180
adding -75 to both sides:
3a + 75 - 75 = 180 - 75
3a = 105
a = 105/3
a = 35°
Hence 2a = 2(35) = 70°
Therefore a = 35° and 2a = 70°
Answer:
x^2 +2x +4
x^2 +2x +(2/2)^2-(2/2)^2+4
(x+1)^2-1+4
(x+1)^2+3=0
(x+1)^2= -3
(x+1)= ±√-3
Since a negative number cannot be square rooted,
there are no solutions to this equation.
Hope this helps:)
Answer:
24.
Step-by-step explanation:
First, use the Order of Operations:
PEMDAS.
First, divide, then multiply to get your solution.
21 / 7 = 3.
3 · 8 = 24.
Therefore, your answer is 24.
Answer:
B sqrt(17)
Step-by-step explanation:
Using pythagoras theorem
Answer:
Sally ends at 3 feet below zero point.
Step-by-step explanation:
Let be 
the height with respect to zero point, which is represented by the following sum:
Where:
- i-th travelled height, measured in feet.
In addition, positive sign means ascension, whereas negative sign means descent.
The statement can be translated into the following mathematical identity:
Sally ends at 3 feet below zero point.
