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Helen [10]
3 years ago
5

belle strong is swimming in lochness lake, 230 feet from shore. suddenly she screams for help and starts swimming toward shore a

t 2 ft/s. ten seconds later, maxx magnum starts toward her in a rowboat, traveling 5 ft/s. how many seconds will belle have been swimming whe maxx reaches her?
Mathematics
1 answer:
spin [16.1K]3 years ago
5 0
She's 230 feet from the shore and she starts swimming towards shore at 2ft/s and covers 20 ft then Maxx starts out at 5ft/s at this point 10 seconds will have elapsed ( remember to add this on).They have now to cover 210 ft between them so the ratio will be5:2 making 210 divide by 7 = 30secs. So max will cover 150 ft and belle will cover 60 ft. So in summation for Belle to cover 60ft it would take her 30 secs plus the first 10 secs total 40 secs
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Evaluate the following expression:<br> 62 − 7(8 + 6 − 32)
Alex Ar [27]

Answer:

188

Step-by-step explanation:

<u>Step 1:  Distribute</u>

62 − 7(8 + 6 − 32)

62 + (-7 * 8) + (-7 * 6) + (-7 * -32)

62 + (-56) + (-42) + (224)

<u>Step 2:  Combine the first two numbers</u>

(62 - 56) - 42 + 224

6 - 42 + 224

<u>Step 3:  Combine the next two number</u>

(6 - 42) + 224

-36 + 224

<u>Step 4:  Combine the last two number</u>

-36 + 224

188

Answer:  188

3 0
3 years ago
Simplify the trigonometric expression.
Natasha_Volkova [10]
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(1+sin \alpha )(1-sin \alpha )=1-sin^2 \alpha

Now we can rewrite our expression using the common denominator:
\frac{1-sin \alpha }{1-sin^2 \alpha } + \frac{1+sin \alpha }{1-sin^2 \alpha} = \frac{2}{1-sin^2 \alpha}

Finally, we can use the trig identities: 1-sin^2 \alpha =cos^2 \alpha and sec \alpha = \frac{1}{cos \alpha } to simplify our trig expression:
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We can conclude that the correct answer is the fourth one.
5 0
3 years ago
Read 2 more answers
2 Points
natka813 [3]

Answer:

38

Step-by-step explanation:

APEX

3 0
3 years ago
While at a picnic, 42 adults drank iced tea, 24 adults drank bottled water, and 36 adults drank lemonade. What's the ratio, as a
alexira [117]

42 drank iced tea

60 drank either water or lemonade

So the ratio would be 42:60 or 7/10 as a fraction.

So D is the correct answer

3 0
3 years ago
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Explanation for B. or D. please.
balu736 [363]
The correct answer is B
8 0
3 years ago
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