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Ainat [17]
3 years ago
7

1+4=5 2+5=12 3+6= 21 8+11= ?

Mathematics
1 answer:
saul85 [17]3 years ago
7 0
8+11=19 but if you add 21+19+12+5=57.
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Help please explain how?
Pani-rosa [81]
Starting from the half circle, the radius is 2, (from the other side of the figure) and using that, 2 x 2 = 4 x 3.14 (or pi) = 12.56. But, it's a half circle. So, 12.56 / 2 = 6.28.
One in the bag!
Going left, we have a rectangle. b x h = a. 6 x 8 = 48.
Done. (by the way, that's the enclosed space)
Finally, the triangle. The triangle's area is found by 1/2 x b x h. 1/2 x 2 x 6 = 6.

The full area of the figure is 60.28.

Hope this helped.
7 0
4 years ago
Using the graph as your guide, complete the following statement.
Alex787 [66]

Because the parabola intercepts the x-axis only once, we conclude that the discriminant is 0.

<h3>What can we say about the discriminant?</h3>

For a quadratic equation:

y = a*x^2 + b*x + c

The discriminant is:

D = b^2 - 4ac

  • If D = 0, there is only one real zero.
  • If D > 0, there are two real zeros.
  • If D < 0, there are two complex zeros.

In the graph we can see that the parabola intercepts the x-axis in its vertex, then the parabola has only one real zero, then we conclude that the discriminant is equal to zero.

If you want to learn more about quadratic equations:

brainly.com/question/776122

#SPJ1

8 0
2 years ago
What is 6x+12&lt;8+8x plz
Art [367]
Hi

6x+12<8+8x
12-8<8x-6x
4<2x
4/2<2x/2
2<x
x>2

Answer: x>2
5 0
3 years ago
Read 2 more answers
How many more meters does he have left to run
RUDIKE [14]
5km=5000m-1500m=3500m=3.5km-1.75km=
1750m

he has 1750m left
3 0
3 years ago
7)
saul85 [17]

Answer:

B

Step-by-step explanation:

7 0
4 years ago
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