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Hello!
✧･ﾟ: *✧･ﾟ:* *:･ﾟ✧*:･ﾟ✧
❖ The gray whale will need to come up 12 times during the 6 hr period.
Convert 6 hrs to mins:
1 hr = 60 mins
60 x 6 = 360 mins
Divide by 30 to see how many times the whale will need to come up:
360/30 = 12
~ ʜᴏᴘᴇ ᴛʜɪꜱ ʜᴇʟᴘꜱ! :) ♡
~ ᴄʟᴏᴜᴛᴀɴꜱᴡᴇʀꜱ
Answer:
a
x
2
+
b
x
+
c
=
0
the two roots of the equation take the form
x
1
,
2
=
−
b
±
√
b
2
−
4
a
c
2
a
So, start by adding
−
5
to both sides of the equation to get
2
x
2
+
x
−
5
=
5
−
5
2
x
2
+
x
−
5
=
0
Notice that you have
a
=
2
,
b
=
1
, and
c
=
−
5
. This means that the two solutions will be
x
1
,
2
=
−
1
±
√
1
2
−
4
⋅
2
⋅
(
−
5
)
2
⋅
2
x
1
,
2
=
−
1
±
√
41
4
You can simplify this if you want to get
x
1
=
−
1
+
√
41
4
≅
1.35078
and
x
2
=
−
1
−
√
41
4
≅
−
1.85078
Hi!
Your answer would be:<em> 228ft below the ocean surface.</em>
Reason being: <em>when you subtract 43 from 271, you get 228.</em>
Hope this helps!
If you need anymore help, please let me know!
<em>Yours Truly,</em>
<h2><em>
~~~PicklePoppers~~~</em></h2>
54 because 6 times 9 equals 54 so 54 divided by 6 is 9 :)) hope that helps
