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2 years ago

9

A survey on planet rew found that 80% preferred tott juice to all other juices. if 32 beings preferred tott juice, how many bein

gs were surveyed altogether?

1 answer:

Goryan [66]2 years ago

4 0

I think it is 38 people total. For everyone
I think...

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If x+3 is a factor of x^3-x^2-10x+A. What is the value of A?

Leno4ka [110]

Answer:

$A = 6$ .

Step-by-step explanation:

Let $a$ denote a constant (a number, rather than a variable like $x$ .)

Let $f(x)$ denote an expression about $x$ (for example,

By the factor theorem, if $(x - a)$ is a factor of $f(x)$ , then $f(a) = 0$ . In other words, if all mentions of $x$ in the expression $f(x)\!$ are replaced with $a$ , then the expression should evaluate to zero.

$(x + 3)$ is equivalent to $(x - (-3))$ . That is: $a = -3$ .

Replace all mentions of $x$ in $x^3 - x^2 - 10\, x + A$ by $(-3)$ to get:

$(-3)^3 - (-3)^2 - 10\times (-3) + A$ .

That should evaluate to zero. Therefore: $-27 - 9 + 30 + A = 0$ . Solve for $A$ to get $A = 6$ .

7 0

3 years ago

1) (-16, 19), (17, 20)<br> find the slope

Reptile [31]

Answer:

you have to do rise over run... y2-y1/ x2-x1.

1/33

Step-by-step explanation:

I don't know if i'm correct but thats what I got. Due to 20 minus 19 is 1. and 17 minus -16 equals 33.

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3 years ago

Help me please help me helpm

Firlakuza [10]

Answer:

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Step-by-step explanation:

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2 years ago

3/8 of students in school ride the bus, what percent does not

Stells [14]

The answer is going to be 87.5%

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3 years ago

X+ 2y=3 and x=5 in y=mx+b form

lesya692 [45]

I don’t know how to solve those type of problems sorry

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2 years ago