Solve the equation by completing the square x^2-3x-18=0

Mathematics

1 answer:

DiKsa [7]2 years ago

4 0

I’m not sure about this one 77

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Need help . This is multiply and dividing rational expressions

Lemur [1.5K]

<span><span><span>22x</span>−11 over x to the second power - x - 30.</span></span>

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3 years ago

Find the value of x that makes m || n

oee [108]

Answer:

X=107°

Step-by-step explanation:

180-73=107

this is to get the angle on the opposite side of the 73.

corresponding angles are similar hence angle x is 107°

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2 years ago

Read 2 more answers

What is the distance between nicholas's school and the post office?

aleksklad [387]

Part A:

Given that Nicholas's school is located at point (3, 2) and that the post office is located at point (-2, -2), then the distance between Nicholas's school and the post office is given by:

$d= \sqrt{(-2-3)^2+(-2-2)^2} \\ \\ = \sqrt{(-5)^2+(-4)^2} = \sqrt{25+16} \\ \\ \sqrt{41} =\bold{6.4} \ units$

Part B:

If Nicholas is located at point (– 3 , 2), the distance to get to the grocery store located at point (1,-1) is given by:

$d= \sqrt{(1-(-3))^2+(-1-2)^2} \\ \\ = \sqrt{(1+3)^2+(-3)^2} = \sqrt{(4)^2+9} \\ \\ = \sqrt{16+9} = \sqrt{25} =\bold{5}$

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3 years ago

Toni wants to buy a shirt . The original price is $85 but it is on sale for 30% off Toni will pay15% sales tax how much will the

mixer [17]

30%÷100% = 0.30; $85×0.30= $25.50; 85 - 25.50= $59.50.
15%÷100% = 0.15; $59.5 ×0.15 =8.92; 59.50 - 8.92= $50.58
$50.58

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3 years ago

At the beginning of the season, MacDonald had to remove 5 orange trees from his farm. Each of the remaining trees produced 210 o

Rainbow [258]

he initial number of trees was 204.

<h3>How to find the initial number of trees?</h3>

The first step to finding the initial number of trees is to write an equation that represents the situation.

T is equal to the initial number of trees.
5 trees were removed = t - 5
Each tree produces 210 oranges = (t-5) (210)
The total of oranges is 41,780 = (t-5) (210)= 41,780

Solve the equation:

(t-5) (210)= 41,780
t-5= 41,780 / 210
t-5 = 198.95
t = 198.95 + 5
t = 203.9

This number can be rounded as 204.

Note: This question is incomplete; here is the missing section:

Find the initial number of trees.

Learn more about equation in: brainly.com/question/2263981

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2 years ago