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Rashid [163]
3 years ago
6

Solve each inequality then graph the solution

Mathematics
1 answer:
Artist 52 [7]3 years ago
4 0

Answer:

a is x>3

b is _> x/4 +12

c is x>-3

Step-by-step explanation: hope this helps

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You have a globe that has a radius of 11 inches. Find the volume of your globe
nordsb [41]

Answer:

V = 4/3

Step-by-step explanation:

Well first you have to pick a letter and i picked V. Then you have to calculate 11. Then you have an equation 11 +1. That equals 12. Then you find 2 numbers that equal 12. The 2 numbers are 4 and 3.

5 0
3 years ago
Read 2 more answers
Matrices A and B are square matrices of the same size. Prove Tr(c(A + B)) = C (Tr(A) + Tr(B)).
alexira [117]

Answer with Step-by-step explanation:

We are given that two matrices A and B are square matrices of the same size.

We have to prove that

Tr(C(A+B)=C(Tr(A)+Tr(B))

Where C is constant

We know that tr A=Sum of diagonal elements of A

Therefore,

Tr(A)=Sum of diagonal elements of A

Tr(B)=Sum of diagonal elements of B

C(Tr(A))=C\cdot Sum of diagonal elements of A

C(Tr(B))=C\cdot Sum of diagonal elements of B

C(A+B)=C\cdot (A+B)

Tr(C(A+B)=Sum of diagonal elements of (C(A+B))

Suppose ,A=\left[\begin{array}{ccc}1&0\\1&1\end{array}\right]

B=\left[\begin{array}{ccc}1&1\\1&1\end{array}\right]

Tr(A)=1+1=2

Tr(B)=1+1=2

C(Tr(A)+Tr(B))=C(2+2)=4C

A+B=\left[\begin{array}{ccc}1&0\\1&1\end{array}\right]+\left[\begin{array}{ccc}1&1\\1&1\end{array}\right]

A+B=\left[\begin{array}{ccc}2&1\\2&2\end{array}\right]

C(A+B)=\left[\begin{array}{ccc}2C&C\\2C&2C\end{array}\right]

Tr(C(A+B))=2C+2C=4C

Hence, Tr(C(A+B)=C(Tr(A)+Tr(B))

Hence, proved.

5 0
3 years ago
1. What is 1/6 plus 2/6?<br><br> 2. What is 4/8 plus 1/8?<br><br> 3. What is 2/3 plus 2/3?
Anon25 [30]
<span>1. What is 1/6 plus 2/6?
          1/6 + 2/6 = 3/6 =1/2

2. What is 4/8 plus 1/8?
           4/8 + 1/8 = 5/8

3. What is 2/3 plus 2/3?
          2/3 + 2/3 = 4/3 = 1 1/3</span>
3 0
3 years ago
Read 2 more answers
Solveby factoring : <br> p2 + 8p + 12 = 0<br> (show steps please)
kramer

Answer:

(p + 6)(p + 2)

Step-by-step explanation:

I believe you meant  p^2 + 8p + 12 = 0, in which " ^ " indicates exponentiation.

Note that 12 = 2*6, and that these two factors, 2 and 6, add up to 8.  Thus,

p^2 + 8p + 12 = 0 = (p + 6)(p + 2)

8 0
3 years ago
Please help me with this!
ZanzabumX [31]

9514 1404 393

Answer:

  2 1/2 feet

Step-by-step explanation:

The Pythagorean theorem is not useful in this problem.

__

If you reflect the triangle over the vertical line, you find that line to be the altitude of an equilateral triangle. That is, all of the vertex angles are 60°.

The base of that equilateral triangle is necessarily twice the length of the base of the triangle shown. All sides of the equilateral triangle are the same length, so all are 5 ft. The base of the triangle shown is half that.

The base (short leg) of the triangle shown is 2 1/2 feet.

_____

Since angles are given, this can be solved using trigonometry. The short leg will be (5 ft)·cos(60°) = (5 ft)(0.5) = 2.5 ft. (The cosine of 60° is one of the few exact rational values of trig functions of exact angles measured in degrees.)

5 0
2 years ago
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