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3 years ago

Bill is bisecting an angle with technology. Which of the following describes his next step?

Mathematics

1 answer:

mojhsa [17]3 years ago

7 0

Answer:

the first step is correct

Step-by-step explanation:

the first step is correct

then draw 2 circles with the same radius with centre D and E ( the point BC intersect the first circle )

Where the 2 circles are intersecting is the point F

Then BF is the bisector

You might be interested in

Divide 120 in the ratio of 1:2

antiseptic1488 [7]

Ratio given 1:2

Let's suppose the ratio as x : 2x

Adding the ratio = 3x

$\frac{x}{3x} \times 120 \\ =40$

$\frac{2x}{3x} \times 120 \\= 80$

40 and 80 are in the ratio 1:2 of 120.

Hope it helps!!!

7 0

3 years ago

Read 2 more answers

Justin did push-ups for the past 555 days.The following data points are the number of push-ups he did each day.

Vitek1552 [10]

Answer: σ: 2.76

Step-by-step explanation:

Count, N: 5

Sum, Σx: 125

Mean, μ: 25

Variance, σ2: 7.6

Steps

look at attached pic for formula

σ^2 = $\frac{Σ(xi - μ)^{2} }{N}$

$\frac{(21 - 25)2 + ... + (29 - 25)2}{5}$

⇒ $\frac{38}{5}$

⇒ 7.6

σ = $\sqrt{7.6}$

⇒ 2.756809750418

⇒ or 2.76

3 0

2 years ago

Of all rectangles with a perimeter of 7, which one has the maximum area? (give the dimensions.)

Elena L [17]

The rectangle with maximum area will actually be a square.

Each side will be of length 7/4 = 1 3/4.

3 0

3 years ago

A commuter must pass through 5 traffic lights on her way to work and will have to stop at each one that is red. She estimates th

sergij07 [2.7K]

Answer:

(a) The mean or expected value of X is 2.2.

(b) The standard deviation of X is 1.3.

Step-by-step explanation:

Let X = number of times the traffic light is red when a commuter passes through the traffic lights.

The probability distribution of X id provided.

The formula to compute the mean or expected value of X is:

$\mu=E(X)=\sum x.P(X=x)$

The formula to compute the standard deviation of X is:

$\sigma=\sqrt{E(X^{2})-(E(X))^{2}}$

The formula of E (X²) is:

$E(X^{2})=\sum x^{2}.P(X=x)$

(a)

Compute the expected value of X as follows:

$E(X)=\sum x.P(X=x)\\=(0\times0.06)+(1\times0.25)+(2\times0.35)+(3\times0.15)+(4\times0.13)+(5\times0.06)\\=2.22\\\approx2.2$

Thus, the mean or expected value of X is 2.2.

(b)

Compute the value of E (X²) as follows:

$E(X^{2})=\sum x^{2}.P(X=x)\\=(0^{2}\times0.06)+(1^{2}\times0.25)+(2^{2}\times0.35)+(3^{2}\times0.15)+(4^{2}\times0.13)+(5^{2}\times0.06)\\=6.58$

Compute the standard deviation of X as follows:

$\sigma=\sqrt{E(X^{2})-(E(X))^{2}}\\=\sqrt{6.58-(2.22)^{2}}\\=\sqrt{1.6516}\\=1.285\\\approx1.3$

Thus, the standard deviation of X is 1.3.

4 0

4 years ago

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Miles plans on leasing a new car and has been researching options from different dealerships. For the particular model he wants,

Mashcka [7]

slope intercept form = y=mx +b

where m would be the slope and b is the y intercept

equations would be:

cool cars: y = 179x +1999

awesome autos: y = 249x

3 0

3 years ago

Read 2 more answers