Answer:
(a) = 60
(b) = 70
Step-by-step explanation:
(a) Sum of all the angles of a triangle is 180
This is an equilateral Triangle
which means all the sides are equal since all the sides are equal that means all the angles are equal
(b) this is an isosceles triangle with two equal sides that means the two opposite angles are equal
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Allowance
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$25
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Video Game
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6% 0f 25
= 0.06 x 25
= $1.50
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Answer: $1.50 were spent on video game
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Answer:
15. x = 112 degrees
18. x = 120 degrees
Step-by-step explanation:
<u>15.</u>
A triangle's angles always equal 180 degrees so we can find the two unknown angles by subtracting 44 from 180 and then dividing it by 2.
2a + 44 = 180
2a = 136
a = 68
Each unknown angle equals 68 degrees. The line from 44 degrees to x degrees segments a line that has a 180 degree angle so we can subtract 68 from 180 to get x.
x + 68 = 180
x = 112
<u>18.</u>
We can use the same concept here but now every angle equals each other so we can divide 180 by 3 to get the measure of those angles.
3a = 180
a = 60
Now we do the same thing as last time to find x.
x + 60 = 180
x = 120
Answer:
Scale used for drawing is 1 cm = 1.75 m
Step-by-step explanation:
An architect makes a scale drawing of a house.
Actual width of porch = 7 meters
Width of porch on drawing = 4 cm
So, Actual width = Drawing width
So, 4 cm = 7 m
1 cm = 1.75 m
So, Scale: 1 cm = 1.75 m
So, Option B is correct
B)1 cm = 1.75 m
Hence scale used for drawing is 1 cm = 1.75 m
Answer:
see explanation
Step-by-step explanation:
z - w
= 1 - 3i - (- 2 + 5i) ← distribute parenthesis by - 1
= 1 - 3i + 2 - 5i ← collect like terms
= 3 - 8i
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z × w
= (1 - 3i)(- 2 + 5i) ← expand using FOIL
= - 2 + 5i + 6i - 15i² [ i² = - 1 ]
= - 2 + 11i + 15
= 13 + 11i
