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3 years ago

In circle A, angle BAE is congruent to angle DAE. What is the length of BE?

Mathematics

1 answer:

belka [17]3 years ago

4 0

You need to give us answer choices.

However, I looked back to previous questions posted on Brainly, and I found one that was similar to yours.

The length of BE could possibly be 27 units.

- I hope this helps. Next time, please use the search feature :)))

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A bridge constructed over a bayou has a supporting arch in the shape of an inverted parabola. Find the equation of the parabolic

Olegator [25]

Answer:

y = (-2/125)(x - 50)² + 40

Step-by-step explanation:

The total length of the bridge is 100 meters.

Maximum height always occurs at midpoint of x.

So for x=50 meters , y = 40 meters.

As the vertex is given at the maximum height, Vertex can be defined at the point (50,40)

We know that the general equation for vertical parabola is:

y = a(x - h)² + k

Where (h,k) = Vertex = (50,40)

Substitute in the equation:

y = a(x - 50)² + 40 ⇒ Equation (i)

We know 2 more points on the parabola. We know that when x=0 , y=0 and we also know that when x=100m, y=0 meters.

Substitute any point in the above equation

Substituting (100,0) in the equation

0 = a(100 - 50)² +40

Solve the equation for a:

a = - 2/125

Substitute a in Equation (i)

y = (-2/125)(x - 50)² + 40

6 0

3 years ago

If the domain of the coordinate transformation (, ) = ( + 2,− − 4) is (1, -4), (3, -2), (0, −1), what is the range?

timama [110]

Answer:

A. (-2, -5), (0, -7), (1, -4)

Step-by-step explanation:

The following transformation is applied:

$(x,y) \rightarrow (y + 2, -x - 4)$

To find the range:

We apply the transformation to the points in the domain. Thus:

$(1,-4) \rightarrow (-4 + 2, -1 - 4) = (-2, -5)$

$(3,-2) \rightarrow (-2 + 2, -3 - 4) = (0, -7)$

$(0,-1) \rightarrow (-1 + 2, 0 - 4) = (1, -4)$

Thus the correct answer is given by option a.

8 0

3 years ago

PLS HELP ...... Urgently

Vlada [557]

Answer:

18+18 as point XYZ is in centroid of Q

Step-by-step explanation:

so it's equal.

36.which is option A.

5 0

4 years ago

The odds of an individual getting struck by lightening in one year are roughly 1 in a million; for this question assume this pro

Montano1993 [528]

Answer:

There is a $5*10^{-9}$ % probability that exactly 2 of them are hit by lightening in a given year

The correct probability distribution to solve this problem is the binomial probability.

This is exact the type of problem that the binomial probability is used, when we want to find the probability of a exact number of events happening in a number of trials.

Step-by-step explanation:

Here we use the binomial probability.

For the binomial probability calculus we have these following parameters.

$n:$ The number of repeated trials

$x:$ The desired number of sucesses.

$p:$ The probability of success on each individual trial.

The probability of exactly x sucesses on n repeated trials is given by:

$P = C_{n,x}.p^{x}.(1 - p)^{n-x}$

In which $C_{n,x}$ is the combination of the number of repeated trials and the desired number of sucesses. The combination formula is given by:

$C_{n,x} = \frac{n!}{x!(n-x)!}$

Here we have:

Sample of eleven people, so $n = 11$

Exactly two of them being hit, so $x = 2$

$p = 10^{-6}$

The probability that exactly two people are hit by a lightning is:

$P = C_{n,x}.p^{x}.(1 - p)^{n-x}$

$P = C_{11,2}.(10^{-6})^{2}.(1 - 10^{-6})^{9}$

$P = 55.(10^{-6})^{2}.(1 - 10^{-6})^{9}$

$P = 5*10^{-11}$

Multiplying by 100, to write in percent notation.

There is a $5*10^{-9}$ % probability that exactly 2 of them are hit by lightening in a given year

8 0

3 years ago

Thisssss??????????????

adoni [48]

Answer:

Part A = 91.125in²

Part B = 8 boxes

Step-by-step explanation:

Work is underlined

Normal text = explanation

Hey There!

What we want to do to find how many supply boxes can fit inside of the larger box is find the volume of the larger box and divide that by the volume of the supply boxes.

To find the volume of the supply boxes:

We are told that the supply box is in the shape of a cube.

That being said we can find the volume by using this simple formula

$V=s^3$

where s = side length

The supply box has a side length of 4.5 so we just plug in 4.5 into the formula

$V=4.5^3\\4.5*4.5*4.5=91.125$

So we can conclude that the volume of the supply box is 91.125 square inches.

Now to find the volume of the larger box.

The larger box is in the shape of a rectangular prism.

The volume of a rectangular prism can be found by multiply the width by the length by the height.

The box has the following dimensions:

width = 18 in

height = 4.5 in

length = 9 in

This means that the volume = 9 * 4.5 * 18

9 * 4.5 = 40.5

40.5 * 18 = 729.

so the volume of the larger box is 729 square inches.

Now we want to find how many little boxes can fit inside the larger box.

Like stated before this can be done by dividing the volume of the little boxes by the volume of the larger box

so # of supply boxes that can fit inside of the larger box = $\frac{729}{91.125}$

Using a calculator: $\frac{729}{91.125} =8$

Hence, 8 smaller boxes can fit inside of the larger box

7 0

3 years ago