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almond37 [142]
3 years ago
5

The average weight of a 7-year old girl is 49 pounds. The average weight of an 11 year old girl is 77 pounds.

Mathematics
1 answer:
Aneli [31]3 years ago
8 0
I only know D. but I'll try to figure out the rest too. D. 9 years old

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Write an equation for a parabola in which the set of all points in the plane are equidistant from the focus and line F(-6,0); x=
Bogdan [553]

Step-by-step explanation:

Since we have a vertical directrix, the equation of the parabola is

(y - k) {}^{2}  = 4p(x - h)

Where p is the distance from the vertex to the directrix.

or the distance from the vertex to the focus.

Since we have a sideways parabola, let use the point for the directrix is (-6,0). So let find the midpoint of (-6,0) and (6,0). That would be our vertex.

\frac{ - 6 + 6)}{2}  = 0

\frac{0 + 0}{2}  = 0

So our vertex is (0,0).

So our equation become

{y}^{2}  = 4px

The distance from the focus and directrix is 6.

So p=6.

{y}^{2}  = 24x

So p is 6.

Since p is 6,

\frac{ {y}^{2} }{24}  = x

3 0
2 years ago
Which statement is true about the angle bisectors of a triangle?
Rashid [163]

Answer:

Follows are the solution to the given question:

Step-by-step explanation:

There are missing details, which is why its solution is as follows:

When an angle bisector points so, its two sides of the corner are equidistant. Its corner bisector of a triangle angle is a straight line splitting its angle into two congruent directions. In such a single point, calling its incentives, follow three-angle engineers are required of its three triangle angles.

5 0
3 years ago
A  5 gallon mixture contains 40% acid. A 3 gallon mixture contains 50% acid. What percent is obtained by putting the two mixture
Nady [450]
(5/8)40 + (3/8)50 = 25 + 18.75 = 43.75%
6 0
3 years ago
Use substitution to solve the<br> following system of equations.<br> 8x + 3y = -22 AND y= -6x - 14
irinina [24]
This is the correct answer for the system of equations

5 0
3 years ago
Which is greater 4 liters or 1 gallon​
eduard

Answer:

4 liters are greater than 1 American Gallon

4 liters are less than 1 UK gallon

Step-by-step explanation:

1 American gallon equals 3.78541 liters.

So 4 liters are greater, whereas

1 British gallon equals 4.546090 liters.

In this case 1 UK gallon is greater.

8 0
3 years ago
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