All categories

3 years ago

Point Q is on line segment PR. Given PQ = 5 and QR=6, determine the length PR

Mathematics

1 answer:

sattari [20]3 years ago

6 0

Answer:

Step-by-step explanation:

PQ=5

QR=6

6+5=11

PR=11

You might be interested in

You want to buy a pizza with 2 toppings. The restaurant offers five possible toppings. How many ways can you choose 2 toppings?

hodyreva [135]

Answer:its 20

Step-by-step explanation:

5 0

3 years ago

A number line is drawn left to right with integers spaced 1 centimeter apart. An ant crawls onto the number line at +3. It then

Anna11 [10]

Answer:

-1.2 cm

Step-by-step explanation:

Let's figure out where the ant is after each step.

Step 1

Start at +3.0

Move left - 1.5

Now at +1.5

Step 2

Start at +1.5

Move right + 4.9

Now at +6.4

Step 3

Start at +6.4

Move left - 7.6

Now at -1.2

The ant is now at -1.2 cm.

6 0

4 years ago

(1 point) A, P and D are n×n matrices. Check the true statements below: A. A is diagonalizable if and only if A has n eigenvalue

yarga [219]

Answer:

Following are the answers to this questions:

A) False.

B) False.

C) True.

D) True.

Step-by-step explanation:

In option A,

Let A is $3 \times 3$ diagonal matrices that is,

$\left[\begin{array}{ccc}0&1&0\\0&0&6\\0&0&0\end{array}\right]$

here $A^3$ = 0, In this A is the nilpotent matrix and A has three values that are equal to 0 but it is not a diagonalizable matrix.

In option B,

If $A =\left[\begin{array}{ccc}0&1\\0&0\end{array}\right]$ in given value A elements are 0 and 1 as a distinct eigen value, that's why A is diagonalizable but |A| =0 its means A is not invertible, that's why it is false.

In option C,

It is given that $A= PDP^{-1}$ where A~ D, which is A is similar to diagonal matrices, that's why it is true.

In option D,

It is given that A has eigen vector, which leases from $R^n$ . A has eigen vector and A is $n \times n$ matrix, the number of A eigen values = given vector of A, that's why it is correct.