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3 years ago

11

Which is longer 4000ft or 1 kilometer

2 answers:

sergejj [24]3 years ago

6 0

Answer:

4000 ft

Step-by-step explanation:

There is 3280.84 foot in km.

So, that makes the 4000 ft the longest.

Llana [10]3 years ago

4 0

1 kilometer is longer as 4000 feet is only about a little more

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If BD and EG are parallel lines and mBCF = 50°, what is mEFH?<br> Look at this diagram:

Burka [1]

It’s hard to tell due to no labels, but these are your angles due to the equal angles theorem and a few other theorems. Hopefully with this image you can hopefully find your answer. You may need to add angles together depending on what you are looking for. And possible even figure out what angle measure would make a (180 degree) triangle.
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3 years ago

Please help me solve this practice SAT question!

lord [1]

Answer:

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Step-by-step explanation:

∵ (t,17) lies on (x,y) plane y=x²-3x+7,t>0

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3 years ago

The lengths of the sides of a triangle are in the extended ratio 4 : 9 : 10. The perimeter of the triangle is 92 cm. What are th

Nookie1986 [14]

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3 years ago

What is the equation of the quadratic graph with a focus of (3, 1) and a directrix of y = 5?

telo118 [61]

Answer:

$f(x)=-\frac{1}{8}(x-3)^2+3$

Step-by-step explanation:

We want to find the equation of the parabola with a focus of $(3,1)$ and directrix $y=5$ .

Considering the directrix, the quadratic graph must open downwards.

The equation of this parabola is given by the formula,

$(x-h)^2=4p(y-k)$ , where $(h,k)$ is the vertex of the parabola.

The axis of this parabola meets the directrix at $(3,5)$ .

Since the vertex is the midpoint of the focus and the point of intersection of the axis of the parabola and the directrix,

$h=\frac{3+3}{2}=3$ and $k=\frac{5+1}{2}=3$ .

The equation of the parabola now becomes,

$(x-3)^2=4p(y-3)$ .

Also $|p|$ is the distance between the vertex and the directrix.

$|p|=2$

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Since the parabola turns downwards,

$p=-2$ .

Our equation now becomes,

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$(x-3)^2=-8(y-3)$ .

We make y the subject to get,

$y=-\frac{1}{8}(x-3)^2+3)$ .

This is the same as

$f(x)=-\frac{1}{8}(x-3)^2+3)$ .

4 0

3 years ago

vladimir2022 [97]

Answer: 38 cm

Step-by-step explanation:

8 0

3 years ago