Answer:
option B
2
Step-by-step explanation:
Given in the question
DO,h(7, 9) → (14, 18)
Formula to use
<h3>√(x1-x2)²+(y1-y2)²</h3>
distance formula = √((7-0)²+(9-0)²) = √(7²+9²) = √130
distance formula = √((14-0)²+(18-0)²) = √(14²+18²) = 2√130
Scale factor
√130 = 2√130
d = 2d
2. The scale is 3 inches = 2 feet.
Divide total inches by 3, then multiply by 2:
30 / 3 = 10
10*2 = 20 feet.
3. Divide the 9cm by 3cm, then multiply by 8 km
9/3 = 3
3*8 = 24 kilometers.
4. Divide real distance by distance on map:
36 / 4 = 9
1 inch = 9 miles
5. Divide real dimension by the drawing dimension:
21 meters / 3 centimeters = 7
1 cm = 7 meters
19687/51 = 386.02 per minute
in 60 minutes.....386.02 * 60 = 23161.2
Answer:
1) f
4 * ¼ = 1 (Multiplicative inverse property)
2) c
6 * 1 = 6 (Identity property of multiplication)
3) h
5 + 7 = 7 + 5 (Commutative property of addition)
4) j
If 5 + 1 = 6 and 4 + 2 = 6, then 5 + 1 = 4 + 2 (Transitive property)
5) a
4(x - 3) = 4x - 12 (Distributive property)
6) i
3(5) = 5(3) (Commutative property of multiplication)
7) k
Rules that allow us to take short cuts when solving algebraic problems.(Properties)
8) d
5 * (3 * 2) = (5 * 3) * 2 (Associative property of multiplication)
9) g
4 + (-4) = 0 (Additive inverse property)
10) e
2 + 0 = 2 (Identity property of addition)
11) b
A + (B + C) = (A + B) + C (Associative property of addition)
