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emmainna [20.7K]
3 years ago
15

Evaluate the expression for the given value of the variable. |4b-8|+|-1-b^2|+2b^3;b=2

Mathematics
1 answer:
Elena-2011 [213]3 years ago
4 0

In this question we already know the value of 'b' so put the value b=2 in the equation

=|4(2)-8| + |-1-(2)^2| + 2(2)^3

=|8-8| + |-1-4| + 2(8)

=0 -5 +16

=11

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PLEASE HELP ASAP!!
Arada [10]
This is like the equivalent to a jar with 4 green balls and 6 white balls, where you are picking 3. (The 4 green balls signify the friends from kindergarten.) 

You want to solve the probability that the first two balls are green and the third is white. 
First draw --> 4 green out of 10 balls --> 4/10 = 2/5 

Second draw --> 3 green out of 9 balls --> 3/9 = 1/3 

Third draw --> 6 white out of 8 balls --> 6/8 = 3/4 


2/5 x 1/3 x 3/4 

= 6/60 

= 1/10 


so the answer is 1/10 (or 10%)
6 0
2 years ago
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Original amount = 80 dollars. 20 percent off is 64 dollars. 20 percent off is question mark.
lord [1]

Answer:

48

Step-by-step explanation:

80/100=0.8

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7 0
2 years ago
Which fact helps you prove the isosceles triangle theorem, which states that the base angles of any isosceles triangle have equa
levacccp [35]

Answer:

D. If one angle of a triangle is larger than another angle, then the side opposite the larger angle is longer than the side opposite the smaller angle.

Step-by-step explanation:


3 0
3 years ago
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Simplify -4(x - 5) + 3(a - 7)
STatiana [176]

using the distributive property:

-4x + 20 + 3a - 21

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7 0
3 years ago
A number increased by three is the same as quadrupling that number increased by five all divided by four. What is le number?
IrinaVladis [17]

Answer:

The number is infinity

Step-by-step explanation:

Let the unknown number be x

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x + 3

Also quadrupling that number increased by five all divided by four is expressed as;

(4x+5)/4

Equating bith expressions and calculating x;

x+3 = (4x+5)/4

cross multiply;

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4x-4x = 5 - 12

0x = -7

x = -7/0

x = ∞

Hence the number is infinity

5 0
2 years ago
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