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alexira [117]
3 years ago
9

A submarine was in a resting position 400 m below sea level. It rose 225 m. Determine its new depth?

Mathematics
1 answer:
Arturiano [62]3 years ago
4 0

Answer:

175 meters, since its below sea level it would be- -400m - (-225m), subtracting with negative # and negative # is the equivalent of getting closer to zero, just figure out 400 - 225, and put a - symbol at the beginning of the number

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Two cards are drawn without replacement from a standard deck of 52 playing cards. What is the probability of choosing a red card
joja [24]

Answer: \dfrac{3}{51}

Step-by-step explanation:

Given : The total number of cards in a deck = 52

Number of red cards = 26

There are two types of red  cards : diamond and heart.

Number of diamond cards = 13

The probability that the first card is a diamond :-

\dfrac{13}{52}=\dfrac{1}{4}

Since diamond is also a red card.

Now, the total cards left = 51

The number of red cards left = 12

The probability that the second card is a red card (without repetition) is given by :-

\dfrac{12}{51}

Now, the probability of choosing a red card for the second card drawn, if the first card, drawn without replacement, was a diamond :-

\dfrac{1}{4}\times\dfrac{12}{51}=\dfrac{3}{51}

7 0
4 years ago
Write an equation in slope-intercept form that is parallel to the line 3x + 2y = 1 and passes through the point (1, 0). A)
Lunna [17]

Answer:

D) y = − 3/2 x + 3 /2

Step-by-step explanation:

3x+2y =1

We need to get this in slope intercept form (solve for y)

Subtract 3x from each side

3x-3x +2y = -3x+1

2y = -3x+1

Divide by 2

2y/2 = -3/2x+1/2

The slope is -3/2

We want a line that is parallel so the slope is the same

m = -3/2

We an use point slope form since we have the slope and a point

y - y1 = m(x-x2)

y - 0 = -3/2(x-1)

Distribute

y = -3/2x +3/2

7 0
4 years ago
Read 2 more answers
2x + 5<br><br> rewrite each expression as the product of a constant and a sum of terms
mr Goodwill [35]

Answer:

= 2(x+\frac{5}{2} )

Step-by-step explanation:

2x + 5

= 2(x+\frac{5}{2} )

When:

2 is the constant

(x+\frac{5}{2} )  is a sum of terms

Hope it will find you well.

8 0
3 years ago
What is the area of the triangle given in the picture?
givi [52]

Answer:

68

Step-by-step explanation:

Area of a triangle is

\frac{1}{2}  \times base \times height

8 0
3 years ago
Please Help!!!......<br>​
valina [46]
3?
i’m not too sure sorry boo xxo
3 0
3 years ago
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