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Mkey [24]
3 years ago
11

Cho tam giác ABC vuông tại A , đường cao AH . Gọi D và E lần lượt đối

Mathematics
1 answer:
stepladder [879]3 years ago
6 0

Answer:

Sorry i don't speak Vietnam so i can't help you if you write it in English i will have a chance to help you

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Please help ASAP help please due soon
Lunna [17]

Answer:

75 in^2

Step-by-step explanation:

The surface area is the sum of the areas

Area of the square:

A = s^2 = 5^2 =25

Area of one triangle

A = 1/2 bh = 1/2 (5)(5) = 25/2

There are 4 triangles

4* (26)/2 = 50

The sum is 25+50 = 75

8 0
3 years ago
Read 2 more answers
Firefly211 what is the length to memphis to Alaska
Natalija [7]
Hello,

The length from Memphis to Alaska is approximately 3,946 miles.

Hope this helps!

4 0
3 years ago
1. A circle with center (-5, 2) is tangent to the y-axis. What is the radius of the circle? What is the equation of the circle?
Bess [88]

Answer:

Step-by-step explanation:

1)  The center lies on the vertical line x = -5 and the the circle is tangent to (touches in one place only) the y-axis.  Thus, the radius is 5.

2)  Starting with (x - h)^2 + (y - k)^2 = r^2 and comparing this to the given

                     (x - 4)^2 + (y + 3)^2 = 6^2

we see that h = 4, k = -3 and r = 6.  The center is at (4, -3) and the radius is 6.

3)  Notice that A and B have the same x-coordinate, x = 15.  The center of the circle is thus (15, -2), where that -2 is the halfway point between the two given points in the vertical direction.   Arbitrarily choose A(15, 4) as one point on the circle.  Then the equation of this circle is

(x - 4)^2 + (y + 3)^2 = r^2 = 6^2, where the 6 is one half of the vertical distance between A(15, 4) and B(15, -8) (which is 12).

4 0
3 years ago
1/2÷5= to a improper fraction
Leokris [45]
1/10
hope this helps u out!
5 0
3 years ago
the length of a rectangle is 9 units more than the width of the rectangle, w. if the width of the rectangle is more than 20 unit
Delvig [45]

Answer:

W>20

Step-by-step explanation:

Let

L-----> the length of a rectangle

W---> the width of a rectangle

we know that

L=W+9 -----> equation A

W>20 -----> inequality B

The inequality B represent the equation that could be used to find the possible values of the width

The solution for the width of the rectangle  is all real numbers greater than 20 units

3 0
3 years ago
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