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3 years ago

How to do this problem

Mathematics

1 answer:

Vera_Pavlovna [14]3 years ago

6 0

X(x-1)(x^2+4)=(x^2-x)(x^2+4)=(x^4)+(4x^2)-(x^3)-(4x)=(x^4)-x(x^2+4)+(4x^2)

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An angle in standard position measures -7pi/6 radians.

sukhopar [10]

Answer:

Quadrant II

Step-by-step explanation:

We can convert $-\frac{7\pi}{6}$ radians to degrees by multiplying by $\frac{180}{\pi}$ to get $-210^{\circ}$ .

$-210^{\circ}$ means we are rotating $210^{\circ}$ clockwise, so you would end up in Quadrant II.

3 0

2 years ago

A roulette wheel has 37 numbers (0 through 36).

NeX [460]

$\large\boxed{\frac{1}{1369}}$

We'll assume that there is an equal probability of any position on the wheel, so a $\frac{1}{37}$ chance for any given number.

We must take the probability of getting a 27, then the probability of getting a 15, and multiply them together to find the chances that they both happen in a row.

$\frac{1}{37}\cdot\frac{1}{37}=\boxed{\frac{1}{1369}}$

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1 year ago

1.)Painting Jane is painting one wall of her living room. The wall is rectangular, 13 feet wide by 9 feet high. What is the area

antiseptic1488 [7]

Answer:

1. $117 ft^{2}$

2. $54 ft^{2}$

3. $1,428 ft^{2}$

4. $644 ft^{2}$

5. $4,700 ft^{2}$

6. $57,600 ft^{2}$

Step-by-step explanation:

First use $A = w*l$

$w = width$

$l = length$

It doesn't have to be $A = w*l$ , it could be $A = l*w$ . It will be the same answer.

1. $3 ft * 9 ft = 117 ft^{2}$

2. $3 ft * 18 ft = 54 ft^{2}$

3. $42 ft * 34 ft = 1,428 ft^{2}$

4. $23 ft * 28 ft = 644 ft^{2}$

5. $94 ft * 50 ft = 4,700 ft^{2}$

6. $360 ft*160 ft = 57,600 ft^{2}$

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2 years ago

Find. What part of 40 is 16?

levacccp [35]

Answer:

40%

Step-by-step explanation:

because convert the fraction 16/40 and the answer is 40%

._.

8 0

3 years ago

Prove that if b is a square matrix then b+b^t is symmetric

WARRIOR [948]

A matrix $\mathbf X$ is symmetric if $\mathbf X=\mathbf X^\top$ . We have

$(\mathbf B+\mathbf B^\top)^\top=\mathbf B^\top+(\mathbf B^\top)^\top=\mathbf B^\top+\mathbf B=\mathbf B+\mathbf B^\top$

and so $\mathbf B+\mathbf B^\top$ is indeed symmetric.

6 0

3 years ago