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FrozenT [24]
4 years ago
5

Please help in both question, I think the error she make was that if she take de 2 heart tiles she would have 7 and what about t

he other question below

Mathematics
1 answer:
Nataly [62]4 years ago
8 0

i cant really see it so good sorry but nice hand writing its <em>surely</em> better than mine xD

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Scientists studying dolphin echolocation simulate the projection of a bottlenose dolphin's clicking sounds using computer
lina2011 [118]

Step-by-step explanation:

The equation of a parabola with focus at (h, k) and the directrix y = p is given by the following formula:

(y - k)^2 = 4 * f * (x - h)

In this case, the focus is at the origin (0, 0) and the directrix is the line y = -1.3, so the equation representing the cross section of the reflector is:

y^2 = 4 * f * x

  = 4 * (-1.3) * x

  = -5.2x

The depth of the reflector is the distance from the vertex to the directrix. In this case, the vertex is at the origin, so the depth is simply the distance from the origin to the line y = -1.3. Since the directrix is a horizontal line, this distance is simply the absolute value of the y-coordinate of the line, which is 1.3 inches. Therefore, the depth of the reflector is approximately 1.3 inches.

4 0
2 years ago
Polygons QRST and Q′R′S′T′ are shown on the following coordinate grid: A coordinate plane with two polygons is shown. Polygon QR
creativ13 [48]
As you can see from the picture you have: 
to rotate point S about the origin by 90^0 clockwise to form point S'';
to rotate point R about the origin by 90^0 clockwise to form point R'';
to rotate point Q about the origin by 90^0 clockwise to form point Q'';
to rotate point T about the origin by 90^0 clockwise to form point T''.
Then you have to translate polygon Q''R''S''T'' 1 unit down.
Note that rotation 90^0 clockwise is the same as rotation 270^0 counterclockwise, so the correct answer is rotating 270^0 counterclockwise about the origin and translating 1 unit down.






8 0
4 years ago
Read 2 more answers
Label the sides in relation to the identified angle.<br><br> PLEASE HELP ILL GIVE BRAINLY
sesenic [268]
F= hypotenuse
E= opposite
G= adjacent

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4 years ago
Describe how you could draw a diagram for a problem finding the total length for two strings, 15 inches long and 7 inches long
Tema [17]
Pay attention in class
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3 years ago
Find the volume of the figure
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V=πr^2h=π·5^2·9≈706.85835

plz mark brainliest.

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4 years ago
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