All categories

4 years ago

Please help urgent!!!

Mathematics

2 answers:

Vaselesa [24]4 years ago

5 0

Answer: n=8 cm

Step-by-step explanation:

You can solve this problem by applying the "Intersecting chords theorem". You must follow the proccedure below:

1. Let's represent each length, as below:

(P will be the point of intersection)

AP=4 cm

CP=6 cm

DP=3 cm

BP=n

2. Therefore, you have:

APxCP=BPxDP

APxCP=nxDP

3. Now, you must clear "n", as below:

n=APxCP/DP

4. When you substitute each value into n=APxCP/DP, you obtain:

n=(4 cm)(6 cm)/3 cm

n=24 cm²/3 cm

5. Finally, the result is:

n=8 cm

hichkok12 [17]4 years ago

5 0

The answer is 8cm :)

You might be interested in

MARKING PEOPLE AS BRAINLIST

Dimas [21]

Answer:

Step-by-step explanation:

4 0

3 years ago

If A is a 2x2 matrix and B is a 2x1 matrix, what is the dimension of AB?

Mice21 [21]

Answer:

2x2 matrix

Step-by-step explanation:

Given

Dimension of matrices A = 2x2 matrix

Dimension of matrices B = 2x1 matrix

The dimension of matrix AB can be gotten by cancelling the row of matrices 1 and column of matrices 2.

After cancelling both row and column, the remaining dimension will be 2x2 matrix. Hence the dimension of AB is 2x2 matrix

6 0

3 years ago

Typically, most job applications require all of the following information except. A. employment history. O B. references. C. sch

Vaselesa [24]

Answer:

Step-by-step explanation:

5 0

3 years ago

HELP PLEASE ITS DUD TMR

sdas [7]

Answer:

Step-by-step explanation:

Product means multiply

(10x^4y^2)(3xy3)

Numbers: 10*3 = 30

x: x^4 * x = x^5

y: y^2 * y ^3 = y ^ 5

Answer: 30x^5y^5

Powers don't multiply, they add. How confusing!

3 0

3 years ago

A wooden log 10 meters long is leaning against a vertical wall with its other end on the ground. The top end of the log is slidi

Andre45 [30]

Answer:

Step-by-step explanation:

This is a related rates problem from calculus using implicit differentiation. The main equation is Pythagorean's Theorem. Basically, what we are looking for is $\frac{dx}{dt}$ when y = 6 and $\frac{dy}{dt}=-2$ .

The equation for Pythagorean's Theorem is

$x^2+y^2=c^2$ where x and y are the legs and c is the hypotenuse. The length of the hypotenuse is 10, so when we find the derivative of this function with respect to time, and using implicit differentiation, we get:

$2x\frac{dx}{dt}+2y\frac{dy}{dt}=0$ and divide everything by 2 to simplify:

$x\frac{dx}{dt}+y\frac{dy}{dt}=0$ . Looking at that equation, it looks like we need a value for x, y, $\frac{dx}{dt}$ and $\frac{dy}{dt}$ .

Since we are looking for $\frac{dx}{dt}$ , that can be our only unknown and everything else has to have a value. So what do we know?

If we construct a right triangle with 10 as the hypotenuse and use 6 for y, we can solve for x (which is the only unknown we have, actually). Using Pythagorean's Theorem to solve for x:

$x^2+6^2=10^2$ and