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3 years ago

11

Evaluate the expression for the given value of the variuble with step by step explanation

1 answer:

GaryK [48]3 years ago

7 0

Substitute the value of b = -2 to the expression

$-4b-8+(-1)-b^2+2b^3=2b^3-b^2-4b-8-1=2b^3-b^2-4b-9\\\\2(-2)^3-(-2)^2-4(-2)-9=2(-8)-4+8-9=-16-4+8-9=-21$

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Which of the following is an example of a permutation?

Yuki888 [10]

Permutation

Step-by-step explanation:

Permutation is an example of the mathematics in which item are arranged in different way.
For example ABC, ACB, BCA, CBA, CAB, BAC etc.
The order of an arrangement are different in each alphabet.
The product of number also be defined as in the form of n to 1
for example : 5*4*3*2*1 = 120

Learn more: permutation

<h2>https://brainly.in/question/17438663</h2>

6 0

3 years ago

Doreen lives 3/4 miles from the library. If Sheila lives 1/2 as far away as Doreen, which statement is true?

Lena [83]

Answer:

A. Sheila lives closer to the library

Step-by-step explanation:

8 0

3 years ago

Please help and thank you!

Stolb23 [73]

The conversion is

$x = r \cos \theta$

$y = r \sin \theta$

So

$\dfrac y x = \tan \theta$

We're given the fairly unusual

$\theta = -\frac 5 2$

It's fairly unusual because usually an angle is given in degrees or radians, and typically the radians are a fraction times pi. We'll assume radians.

$\dfrac y x = \tan \theta = \tan(-5/2) \approx 0.747$

Ah, there's our .75. The approximate answer is

$y = 0.75 x$

Third choice.

The exact answer is

$y = x \tan( -\frac 5 2)$

also a line through the origin.

3 0

3 years ago

HELP!!! I need help with this question

Inga [223]

Answer:

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8 0

2 years ago

What expression is equivalent to <br> P/3 + (3s + 7)

ella [17]

Answer:

(P+9s+21)/3

Step-by-step explanation:

hello :

P/3 + (3s + 7) = P/3 + 3(3s + 7)/3 = (P+9s+21)/3

4 0

2 years ago