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jonny [76]
3 years ago
13

The expression -120 + 13m represents a submarine that began at a depth of 120 feet below sea level and ascended at a rate of 13

feet per minute. What was the depth of the submarine after 6 minutes?
Mathematics
1 answer:
Juli2301 [7.4K]3 years ago
8 0

Answer:

It would be at a depth of 42 meters below the surface

Step-by-step explanation:

13(6)=78  -120+78=-42

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Which perfect square lies between 225 and 289
Brilliant_brown [7]

Answer:

256

Step-by-step explanation:

256 is 16 squared.

225 is 15 and 289 is 17.

7 0
3 years ago
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Find the distance between the points (-4,-1) and (4,1). Round to 2 decimals places
expeople1 [14]

Answer:

length between is <u>8</u><u>.</u><u>5</u><u>4</u><u> </u><u>units</u>

Step-by-step explanation:

Formular:

{ \bf{ =  \sqrt{ {(x_{1} - x_{2}) }^{2}  +  {(y_{1}  - y_{2}) }^{2} } }}

x1 is -4

x2 is 4

y1 is 4

y2 is 1

=  \sqrt{  {( - 4 - 4)}^{2} +  {(4 - 1)}^{2}  }  \\  =  \sqrt{64 + 9}  \\  =  \sqrt{73}  \\  = 8.54 \: units

3 0
3 years ago
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Last year, ginger cost $15 per kilogram. Due to a harvest shortage this year, the price of ginger has to increase by 15% per kil
Anastaziya [24]
<h3>Answer:    17.25 dollars</h3>

=======================================================

Explanation:

15% of 15 = 0.15*15 = 2.25

The cost has increased by $2.25 which means the cost per kilogram is now 15+2.25 = 17.25 dollars

------------

As a slight shortcut, we can multiply the old cost (15) by the multiplier 1.15 to get the same result:

1.15*15 = 17.25

This method allows us to chain together many percentage increases, and it also allows us to include percentage decreases as well. Note how 1.15 is basically the result of 100% + 15% = 1.00+0.15 = 1.15

4 0
3 years ago
Find all the powers of 4 in the range 4 through 1,000 what do i do for this?
eimsori [14]
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Alexxandr [17]

Answer:

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2. Cb is congruent to Jk. Bd is congruent to KL. Cd is congruent to JL. Angle c is congruent to angle j. Angle b is congruent to angle j. Angle d is congruent to angle L.

3. Wx is congruent to Dc. Xy is congruent to Cy. Wc is congruent to Dy. Angle w is congruent to angle d. Angle c is congruent to angle x. Angle y is congruent angle y.

Tip: Label the statement 1 , 2, 3 and do the same to the other one. It will make your life so much easier.

3 0
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