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Jobisdone [24]
4 years ago
13

The function d(s) = –5s – 15 models the depth, in feet, of a rock that Dante dropped into a lake s seconds after he lost sight o

f the rock. What is the meaning of the x-intercept? Question 4 options: A)Dante lost sight of the rock when it was 15 ft below the lake’s surface. B)Dante saw the rock for 15 s before losing sight of it. C)Dante lost sight of the rock when it was 3 ft below the lake’s surface. D)Dante saw the rock for 3 s before losing sight of it.
Mathematics
1 answer:
professor190 [17]4 years ago
6 0

Answer:

A

Step-by-step explanation:

Its probably A because all the other ones don't make sense with the problem.

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a person walks 80 feet in 40 seconds. what equation represents this relationship. how many feet will the person walk in 10 secon
larisa [96]

Answer:

20 feet

Step-by-step explanation:

\frac{80 feet}{40 seconds}  = \frac{x feet}{10 seconds}

Simplify \frac{80}{40}

\frac{80}{40} = \frac{2}{1}

Every 1 second, a person will walk 2 feet.

\frac{x}{10} = \frac{20}{10}

X = 20 feet

6 0
3 years ago
Read 2 more answers
Find the measure of an angle whose complement is five times its measure.
ch4aika [34]

Answer:

The measure of the unknown angle is 15°.

Step-by-step explanation:

Represent this angle by A.  Then the complement of A is 90° - A.

"Angle whose complement is five times its measure" would be expressed as

90° - A = 5A

Solve this for A by adding A to both sides:

90° = 6A.  Then A = 90°/6, or 15°

4 0
3 years ago
A non-integer answer should be entered as a decimal, rounded to the hundredths place.
Nostrana [21]

AnswerDistance = 16.28

Step-by-step explanation:

6 0
3 years ago
I need help on these please
spayn [35]

Answer: Answers to a photo

Step-by-step explanation: Answers to a photo

3 0
4 years ago
(5+w)(w+4) in standard form
dlinn [17]

Answer:

  w² +9w +20

Step-by-step explanation:

Multiply it out, collect terms, and write as descending powers of w.

  (5+w)(w+4) = 5w +5·4 +w² +w·4

  = w² +9w +20

7 0
3 years ago
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