Answer:
A: 15
Step-by-step explanation:
The angles are opposite to each other.
Vertically opposite angles are equal in size.
Put up an equation and solve for a.
6a + 10 = 3a + 55
Subtract 3a and 10 on both sides.
6a - 3a = 55 - 10
Combining like terms.
3a = 45
Divide both sides by 3.
a = 45/3
a = 15
The value of a is 15.
4√400 / 4√ 5 ( both are 'fourth roots ')
= 4√ (400/5)
= 4√80
= 2.99 to nearest hundredth
Answer:
28 units.
Step-by-step explanation:
The distance between two given points (
) and (
) is given by the formula
So, the distance between points (-2,-4) and (-1,6) is
units.
Now, the distance between points (-1,6) and (3,8) is
units
Again, the distance between the points (-2,-4) and (3,8) is
units.
Therefore,the perimeter of the triangle is (10.05 + 4.47 + 13) = 27.52 ≈ 28 units. (Approximate)
Answer:
19
Step-by-step explanation:
3 to the power of 2 is 9
5 times 2 is 10
10 plus 9 is 19