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3 years ago

Can someone help me with this question?

Mathematics

1 answer:

Anarel [89]3 years ago

3 0

Answer:

yea

Step-by-step explanation:

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Karolina [17]

X=3 because you collect the like terms then divide both sides by -8 so X=3

6 0

3 years ago

Read 2 more answers

Please help with this

Dafna1 [17]

Answer:

697.24 and 886.76

Step-by-step explanation:

792+.92*103= 886.76

792-.92*103= 697.24

if that's not correct try 697.76 and 886.25

7 0

3 years ago

PLS HELP ME I REALLY NEED THIS URGENT!!!!!

ladessa [460]

-2 is the answer I hoped I helped

6 0

3 years ago

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The length of a string in yards is a function f(n) of the length n in inches. Write a function rule for this situation.

HACTEHA [7]

B is the right answer I just took it

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4 years ago

When using the inspection method, the number you would add to (and subtract from) the constant term of the numerator so the poly

krok68 [10]

Question:

Consider the expression $\frac{x^2 + x -10}{x + 3}$

When using the inspection method the number you would add to (and subtract from) the constant term of the numerator so the polynomial in the numerator will have (x + 3) as a factor is?

Answer:

The constant to add is 4

Step-by-step explanation:

Given

$\frac{x^2 + x -10}{x + 3}$

First, we need to get an expression that has x + 3 has its factor.

Represent this expression with: $(x + 3)(x + k)$

Expand

$x^2 + 3x + kx + 3k$

Group like terms

$x^2 + (3 + k)x + 3k$

Compare the above expression to: $x^2 + x - 10$

$(3 + k)x = x$

$3k = -10$

However, we only consider solving $(3 + k)x = x$ for k

$(3 + k)x = x$

$3 + k = 1$

Subtract 3 from both sides

$3 - 3 + k = 1 - 3$

$k = 1 - 3$

$k= -2$

Substitute -2 for k in $(x + 3)(x + k)$

$(x + 3)(x + k) = (x + 3)(x -2)$

$(x + 3)(x + k) = x^2 + 3x - 2x - 6$

$(x + 3)(x + k) = x^2 + x - 6$

So, the expression that has a factor of x + 3 is $x^2 + x - 6$

To get the constant term to add/subtract, we have:

$Constant = (x^2 + x - 6) - (x^2 + x - 10)$

Open brackets

$Constant = x^2 + x - 6 - x^2 - x + 10$

Collect Like Terms

$Constant = x^2 - x^2+ x - x - 6+ 10$

$Constant = - 6+ 10$

$Constant = 4$

6 0

3 years ago