lie is solving the quadratic equation by completing the square. 3x2 + 18x – 8 = 0 3x2 + 18x = 8 What should Lie do next?

Mathematics

2 answers:

ra1l [238]3 years ago

8 0

Answer: In the next step, he takes the factor 3 out of the variable terms and divide it to the other side.

Step-by-step explanation:

ruslelena [56]3 years ago

3 0

Divide 18 by 2(9) then square that (81). add 81 to both sides

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How to I find the area and perimeter of algebra tiles

Ludmilka [50]

Answer:

sweet heart all you have to do is search this thing up in you will have your answer ok so have a good night

3 0

3 years ago

You need to create a fenced off region of land for cattle to graze. The grazing area must be a total of 500 square feet, surroun

liq [111]

Using area of regular Polygon, the perimeter of the total grazing area of regular polygon is 100 feet and the cost to place a fence around the entire grazing area is $795.

According to the question,

You need to create a fenced off region of land for cattle to graze. The grazing area must be a total of 500 square feet, surrounded by a fence, and in the shape of a regular polygon.

Within this grazing area, the length of the apothem must be 10 feet long.

In part 1 we asked to find the total perimeter of the grazing area using below polygon formula

The formula of the area of regular polygon = ap/2

Where a is apothem and p is the perimeter.

500 = 10 x p/2

1,000 = 10 x p

100 = p

Hence the perimeter of regular polygon the total grazing area is 100 feet.

In part 2, the cost of the fence is $7.95 per linear foot, how much will it cost to place a fence around the entire grazing area

Now cost of fencing 1 foot = $7.59

So, cost of fencing 100 feet = 7.59 x 100 = 759

Hence, the cost to place a fence around the entire grazing area of polygon is $795.

Learn more about polygon here

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7 0

1 year ago

Using the conversions given , convert 5 inches to millimeters ( round to the nearest whole millimeter ).

alekssr [168]

The answer you are looking for is c) 127 mm

5 0

3 years ago

Example 6

lapo4ka [179]

Answer:

The answer is below

Step-by-step explanation:

1. COST Mr. Rivera wants to purchase a riding lawn mower, which is on sale for 15% off the marked price. The store charges sales tax 6.5% on all sales. Write a function p(x) that represents the price after a 15% discount. Write a function t(x) that represents the total cost with sales tax. Write a composition of functions that represents the total cost of a riding lawn mower on sale. How much will Mr. Rivera pay for a riding lawn mower that has a marked price of $3000?

Solution:

a) Let x represent the marked price and p(x) represent the price after discount. Since a discount of 15% is given, the price would be:

p(x) = $x(100\% -15\%)=x(1-\frac{0.15}{100} )=0.85x$