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Burka [1]
3 years ago
6

4. Find the measurements of the square: Area 400ft2

Mathematics
2 answers:
eduard3 years ago
7 0

Answer:

100*4=400

Step-by-step explanation:

yan [13]3 years ago
6 0

Answer:

20 ft × 20 ft (square has equal sides)

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Tina wrote the equations 3x - y = 9 and 4x + y + 5, What can Tina conclude about the solution to this system of equations?
Maru [420]
3x - y = 9
4x + y = 5
---------------add
7x = 14
x = 14/7
x = 2

3x - y = 9
3(2) - y = 9
6 - y = 9
-y = 9 - 6
-y = 3
y = -3

C. (2,-3) is a solution to the system of linear equations
4 0
3 years ago
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Complete the long division problem on your own sheet of paper. Then, fill in the digits.
zvonat [6]

Step-by-step explanation:

Answer attached..

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3 0
2 years ago
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Denelle draws one card from a standard deck of 52 cards. Determine the probability of drawing either a two or a queen.
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There are four queens in a deck of cards, so the probability of drawing a queen is 4/52. There is also a 4/52 chance of drawing a two. Because you can draw either a two or Queen, you add the probability of each.

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4 0
3 years ago
Find the equation of the line which is perpendicular to the line y=− 1 3 x+6 through the point (2,4)
nikklg [1K]

The equation of the perpendicular line is   13y=27-x

Step-by-step explanation:

Writing the given equation to slope-intercept form.

y=− 1 3 x+6

The slope of this line is 13

The perpendicular slope is -1/13

Using  the new slope and the given point into the slope-intercept form to find the y-intercept.  

4=-1/13(2)+c

2=-1/13+c

c=27/13

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5 0
3 years ago
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Answer:

<em>The plane landed after 9.4 minutes.</em>

Step-by-step explanation:

<u>Function Modeling</u>

The initial altitude of a plane arriving at JFK International Airport is 30,000 ft.

It then began its descent at a rate of 3,200 feet per minute.

Let's call t the number of minutes since the descent started. If each minute the plane descends 3,200 feet, then after t minutes it descends 3,200t.

This must be subtracted from the initial altitude, thus the altitude H is written as:

H = 30,000 - 3,200t

When the plane landed, its altitude was H=0, thus:

0 = 30,000 - 3,200t

Adding 3,200t:

3,200t = 30,000

Dividing by 3,200:

t = 30,000/3,200

t = 9.375 minutes

Rounding to the nearest tenth:

The plane landed after 9.4 minutes.

7 0
3 years ago
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