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Ghella [55]
3 years ago
7

What's the answer to this quadratic equation (x - 18)^2 = 1

Mathematics
2 answers:
just olya [345]3 years ago
5 0

Answer:

Its either x=17 or x=19

Step-by-step explanation:

Rus_ich [418]3 years ago
4 0

Answer:

x=17 or x=19

Step-by-step explanation:

(x−18)^2=1

First, simplify both sides of the equation.

x*2−36x+324=1

Then subtract 1 from both sides.

x^2−36x+324−1=1−1

x^2−36x+323=0

Factor left side of equation.

(x−17)(x−19)=0

Then set factors equal to 0.

x−17=0 or x−19=0

x=17 or x=19

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faust18 [17]

Answer:

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Step-by-step explanation:

6 0
3 years ago
5. Sue is 20 years old and Anne is 10 years old. How many years ago was Sue 3 times as old as Anne
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3 0
3 years ago
Emily's family loves to work together
Evgesh-ka [11]

Answer:

They have <u>18</u> vegetable plants.

Step-by-step explanation:

Given:

Emily's family loves to work together  in the garden.

They have a. preference for flowers as 80% of  their plants are flowers and the rest  are vegetables.

They have 90 plants  in the garden.

Now, to find the number of vegetable plants.

<u><em>Total plants in the garden = 90.</em></u>

80% of the plants are flowers.

So, number of plants which are flowers = 80% of 90.

=\frac{80}{100} \times 90

=\frac{7200}{100}

=72\ plants.

<u><em>The number of flower plants = 72.</em></u>

Total plants = 90 (given)

So, to get the number of vegetable plants we subtract:

90-72=18\ plants.

<u><em>Thus, vegetable plants = 18.</em></u>

Therefore, they have 18 vegetable plants.

4 0
3 years ago
Y=-6x+5 and y=-6x-6 pair of lines is parallel, perpendicular, or neither?
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The slope is always the number in front of the x.

8 0
3 years ago
Um ok i need help pls give correct answers
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