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timurjin [86]
4 years ago
5

A crew you’re supervising is installing a circular patio. In order to purchase the materials, they need to compute the area. The

plans call for a diameter of 12 yards. The crew figures the area of the patio will be 37.68 square yards. Did the crew calculate the area correctly? If not, why?
Mathematics
2 answers:
lawyer [7]4 years ago
8 0

Answer:

it would be 37.69 square yards the answer that was given is off by .01

Step-by-step explanation:

you multiply 12 times pi (3.14) = 37.69

Ainat [17]4 years ago
4 0

Answer:

No, they calculated circumference instead of the area.

Step-by-step explanation:

3.14 • 12 = 37.68

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A pair of perpendicular lines intersect at the point (5,9). Write
maw [93]

Answer:

The equation of the line that is perpendicular to the line that passes through the point (-4, 2) is y = -9·x/5 + 18

Step-by-step explanation:

The coordinates of the point of intersection of the two lines = (5, 9)

The coordinates of a point on one of the two lines, line 1 = (-4, 4)

The slope of a line perpendicular to another line with slope, m = -1/m

Therefore, we have;

The slope, m₁, of the line 1 with the known point = (9 - 4)/(5 - (-4)) = 5/9

Therefore, the slope, m₂, of the line 2 perpendicular to the line that passes through the point (-4, 4) = -9/5

The equation of the line 2 is given as follows;

y - 9 = -9/5×(x - 5)

y - 9 = -9·x/5 + 9

y =  -9·x/5 + 9 + 9

y = -9·x/5 + 18

Therefore, the equation of the line that is perpendicular to the line that passes through the point (-4, 2) is y = -9·x/5 + 18.

6 0
3 years ago
Does this equation produce a horizontal or vertical line: y=5
Flura [38]

check the picture below.

7 0
3 years ago
The first three terms of a sequence are given. Round to the nearest thousandth (if necessary).21,42,84,...Find the 7th term.
Julli [10]

Answer:

21,42,84,168,336,672, 1,344

Step-by-step explanation:

The pattern is to multiply the previous term by 2 to find the next term. The seventh term should be 1,344.

4 0
4 years ago
Read 2 more answers
PLs help lots of points
NikAS [45]

Answer:

I believe it is cube A

Step-by-step explanation:

the volume of Cube B equaled 2073.6 in for me. so it would be less than cube A

4 0
3 years ago
Read 2 more answers
Find the product of 3x and x^2-4x+10 subtract x^3+7x^2-2x
Virty [35]

Answer:

below

Step-by-step explanation:

2x^3 -5x^2 +28x

I'm pretty sure this is the answer.

7 0
3 years ago
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