Answer:
Below.
Step-by-step explanation:
7) c^2 = a^2 + b^2
15^2 = 11^2 + b^2
b^2 = 225 - 121 = 104
b = √104
= √4√26
= 2√26.m
8). 4^2 = a^2 + (√6)^2
a^2 = 16 - 6
a^2 = 10
a = √10.
Since 1 cm = 10 mm
Then 4 cm = 40 mm
Answer:
<u>She needs 40.4 feet of wood.</u>
Step-by-step explanation:
➾ She had 8 pieces of wood that are 6.2 feet each, so <u>total length of wood she had</u> = 8×6.2
= <u>49.6feet</u>.
➾She needs total 90feet. of wood and she had already 49.6 feet of wood.
So, now wood she needed = 90-49.6
= <u>40.4feet</u><u>.</u>
_______<u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u>
Hope it helps you:)
No,if you add 1/2 and 3/8 you get 7/8 which is greater than the original 3/8
