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4 years ago

-3.667987=b^(-2)w+(-1.981902-w)

Mathematics

1 answer:

xxTIMURxx [149]4 years ago

7 0

Answer:

what are the answers?

Step-by-step explanation:

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Find the product using suitable identities.<br> a) <img src="https://tex.z-dn.net/?f=%28%5Cfrac%7Bx%7D%7B3%7D%20%20-%206%29%5E%7

Vesna [10]

Answer:

$\frac{x^2}{9}$ - 4x + 36

Step-by-step explanation:

( $\frac{x}{3}$ - 6)² = ( $\frac{x}{3}$ - 6)( $\frac{x}{3}$ - 6)

Each term in the second factor is multiplied by each term in the firs t factor, that is

$\frac{x}{3}$ ( $\frac{x}{3}$ - 6) - 6( $\frac{x}{3}$ - 6)

Distribute both parenthesis

= $\frac{x^2}{9}$ - 2x - 2x + 36 ← collect like terms

= $\frac{x^2}{9}$ - 4x + 36

5 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

4 years ago

In the town of sleepy Oak. the fine for speeding ticket is $32.65 + s dollars. Where s is the miles per hour over the speed limi

Mkey [24]

A: 38.4 - 25 = 13.4
13.4 + 32.65 = $46.05

B: 50.15 - 32.65 = 17.5
17.5 + 25 = 42.5 mph

5 0

3 years ago

A function f gives the number of stray cats in a town t years since the town started

Bingel [31]

Answer:

f(0) = 243 . . . cats at the start

Step-by-step explanation:

The exponential function tells you the number of cats after t years is ...

f(t) = 243(1/3)^t

When t=0, the exponential factor is 1, so the value of the function is the multiplying constant.

f(0) = 243

This means there were 243 stray cats in town when the animal control program started.

6 0

3 years ago

Which values are areas of cross sections that are parallel to a face of this right rectangular prism?

mafiozo [28]

Answer:

A = 24

Step-by-step explanation:

We can see that the face of the given rectangular prism shows the width 4 and the height of 6. If we cut the figure at any point along the length 20, such that the cross section is parallel to the face, the cross section, which occurs at x length, will always have the same dimensions, that are 4 and 6.

So the area of the cross section which is parallel to the face of the given rectangular prism is given by:

A = 6 × 4

A = 24

8 0

3 years ago