Step-by-step explanation:
a. 12 + 4 = 16
1st left equation is matched to 4th right value
b. 3(4) + 7 = 19
2nd left equation is correctly matched to 2nd right value
c. 4(7) - 10 = 18
3rd left equation is matched to 1st right value
d. 1 / 2 × xy
1 / 2 × (4 × 7)
= 28 ÷ 2
= 14
4th left equation is matched to 3rd right value
Answer:
the answer is C
Step-by-step explanation:
BABYSHARK
In one hour the father can wash 1/5 of the car while the remaining 4/5 is done by the son.
to do 1/5 wash & wax, the son requires 1/4 hours (i.e 15 mins)
Therefore, the son requires one hour and 15 minutes to wash and wax the car by himself.
Hope that helps.
Area of a circle is pi * radius² so:
1) Area = pi * 5²
= 25pi ≈ 78.54 yd²
2) Area = pi * 7²
= 49pi ≈ 153.94 cm²
Circumference is 2 * pi * radius so:
3) Circumference = 2 * pi * 10
= 20pi ≈ 62.83 mi
4) Circumference = 2 * pi * 3.3
= 6.6pi ≈ 20.73 in
Volume of a rectangular prism is length * width * height
5) Volume = 10 * 3 * 10
= 100 * 3
= 300 yd³
6) Volume = 5 * 7 * 5
= 35 * 5
= 175 in³
Not completely sure on the triangular prisms though. I'm almost certain the formula is 1/2 * height * base 1 * base 2 though