Answer:
15 km
Step-by-step explanation:
We can use the Pythagorean theorem to solve
a^2 + b^2 = c^2
Draw a triangle with 12 for x direction and 9 for y direction
The distance is the connecting line which is the hypotenuse
12^2 + 9^2 = c^2
144+81 = c^2
225 = c^2
Taking the square root of each side
sqrt(225) = sqrt(c^2)
15 =c
Answer:
m<D=50
Step-by-step explanation:
The reason is that ABOC is a quadrilateral, so its angle add up to 360*. Each of the tangent angles, <ABO and <ACO, has a measure of 90*.
m<ABO + m<ACO + m<A + m<O = 360
90 + 90 + m<A + m<O = 360
m<A + m<O = 180
80 + m<O =180
m<O = 100
If the measure of central angle <O is 100*, what is the measure of inscribed <D?
The measure of a central angle is equal to the measure of the arc it intercepts. If m<O = 100*, then m BC = 100.
The measure of an inscribed angle is half of the measure of the arc it intercepts. If m BC = 100*, then m<D = 50
m<D=50
Total amount=9 chicken.($5/chicken)+15 burguer meals.(6$/burquer meal)=
=$45+$90=$135.
Percent (chicken meals)=($45.100%) / $135=33,33%.
Solution: 33,33%.
Factor the following integer:
78
The last digit of 78 is 8, which means it is even. Therefore 78 is divisible by 2:
78 = 2 39:
78 = 2×39
39 is not divisible by 2 since 39 is odd and 2 is even:
78 = 2×39 (39 is not divisible by 2)
The sum of the digits of 39 is 3 + 9 = 12, which is divisible by 3. This means 39 is divisible by 3:
39 = 3 13:
78 = 2×3×13 (13 is not divisible by 2 since 39 is not)
The sum of the digits of 13 is 1 + 3 = 4, which is not divisible by 3. This means 13 is not divisible by 3:
78 = 2×3×13 (13 is not divisible by 2 or 3)
The last digit of 13 is not 5 or 0, which means 13 is not divisible by 5:
78 = 2×3×13 (13 is not divisible by 2, 3 or 5)
Divide 7 into 13:
| | 1
7 | 1 | 3
- | | 7
| | 6
13 is not divisible by 7:
78 = 2×3×13 (13 is not divisible by 2, 3, 5 or 7)
The alternating sum of the digits of 13 is 1 - 3 = -2, which is not divisible by 11. This means 13 is not divisible by 11:
78 = 2×3×13 (13 is not divisible by 2, 3, 5, 7 or 11)
No primes less than 13 divide into it. Therefore 13 is prime:
78 = 2×3×13
There is 1 copy of 2, 1 copy of 3 and 1 copy of 13 in the product:
Answer: 78 = 2×3×13
