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Kamila [148]
2 years ago
11

Five swimmers entered a competition. Four of the swimmers have had their turns. Their scores are 10.8s, 10.75s, 10.79s and 10.81

s. What score must the last swimmer get in order to win the competition?
Mathematics
1 answer:
Shalnov [3]2 years ago
6 0

Answer:

10.74s or faster (lower)

Step-by-step explanation:

The lowest time out of all of them is 10.75, so to all the 5th swimmer needs to do to win is to undercut the swimmer who got 10.75s by a 100th of a second. i.e 10.74s or faster (lower) would win.

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If EBC = 31a - 2 and EBH = 4a + 45 find HBC
Zigmanuir [339]

Answer:

The measure of angle HBC is m∠HBC=61°

Step-by-step explanation:

In this problem we have that

The line BH bisects angle EBC,

see the attached figure to better understand the problem

then

m∠EBC=m∠EBH+m∠HBC

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m∠EBH=m∠HBC

therefore

The measure of angle HBC is m∠HBC=61°

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