Answer:
See Explanation
Step-by-step explanation:
The question has unclear information.
So, I'll answer from scratch
Given
ABC = Right angled triangle
DB bisects ABC
Required
Prove that CBD = 45
From the question, we have that:
ABC is right angled at B
So, when DB bisects ABC, it means that DB divides ABC into two equal angles.
i.e.
and
Substitute CBD for ABD in
Divide both sides by 2
Hence, it is proved that
<em>Follow the above explanation and use it to answer your question properly</em>
Answer:
B. Negative two-fifths (-2/5)
Step-by-step explanation:
1. Change the second number into a fraction if it isn't already.
2. Find the reciprocal of the divisor, or second fraction.
3. Multiply the numerators together.
4. Multiply the denominators together.
5. Simplify the answer if possible.
6. Determine if the answer is positive or negative using the sign rules.
Show your work:
-4/5 divided by 2/1
-4/5 divided 1/2
-4 * 1 = -4
5 * 2 = 10
Simplify:
-4/10 = -2/5
Answer:
Step-by-step explanation:
–3 is a valid solution because substituting it into the original equation gives a true statement.
Answer:
Θ = 124°
Step-by-step explanation:
The sum of the interior angles of a polygon is
sum = 180° (n - 2) ← n is the number of sides
Here n - 5, thus
sum = 180° × 3 = 540°
Sum the given interior angles and equate to 540
2x - 3 + 2x + 7 +3x - 4 + 3x - 4 + 3x - 2 = 540, that is
13x - 6 = 540 ( add 6 to both sides )
13x = 546 ( divide both sides by 13 )
x = 42
Thus
Θ = 3x - 2 = 3(42) - 2 = 126 - 2 = 124°
