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Yanka [14]
4 years ago
14

Seth solved a quadratic equation. His work is shown below, with Step 3 missing.

Mathematics
1 answer:
Lyrx [107]4 years ago
3 0

Answer:

|x - 1| = 6

Step-by-step explanation:

After step 2, we have that:

(x - 1)^2 = 36

and after step 4, we have the results:

x = -5 or x = 7

After step 2, what we can do in step 3 is: use square root in both sides of the equation:

|x - 1| = 6

This equation can be split in two:

x - 1 = 6 -> x = 7

x - 1 = -6 -> x = -5

So Seth could write this equation in step 3:

|x - 1| = 6

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2(a -3) + 4b - 2(a -b -3) + 5<br> simplify
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Answer:

Simplify the expression.

6 b  +  5

Step-by-step explanation:

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4 0
3 years ago
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you can afford to invest $150 per month in an annuity that earns 4% per year, compounded monthly. How long will it take before y
Nonamiya [84]

The time it will take before your investment is worth $6000 = 7 years

<h3>Calculation of simple interest </h3>

The amount of money invested per month = $150

Therefore the amount principally invested yearly;

= 12 × 150 = $1,800

Simple interest = $6000

Rate = 4%

Time = ?

Using the formula for Simple interest (SI)= P×T×R/100

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T = SI × 100/P×R

T = $6000×100/1800×4

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2 years ago
(A) find F(x) for the indicated values of x, if possible
dem82 [27]

Answer:

A) The indicated values of F(x) for x=-3 and x=5 are F(-3)=-27  and F(5)=125

B) The domain of f is the set of all real numbers

Step-by-step explanation:

Given that the function F is defined by

F(x)=x^3 for x=-3,5

A) To find F(x) for the indicated values of x :

Given F(x)=x^3 for x=-3,5

  • Put x=-3 in the given function

F(-3)=(-3)^3

=(-3)\times (-3)\times (-3)

=-27

Therefore F(-3)=-27

  • Put x=5 in the given function

F(5)=(5)^3

=(5)\times (5)\times (5)

=125

Therefore F(5)=125

The indicated values of F(x) for x=-3 and x=5 are F(-3)=-27  and F(5)=125

B) To find the domain of f :

The domain of the f in the given expression is the set of all real numbers except where the expression x^3 is undefined. In this case, there is no real number that makes the expression undefined.

The domain of f is the set of all real numbers

8 0
3 years ago
Solve for the following system of equations by using the substitution method for x-y=0 and x-y-2=0
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Step-by-step explanation:

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4 years ago
(2<br> 2X 2<br> −3 ÷ 2<br> 5<br> )<br> 2 =
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Answer

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