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Alecsey [184]
2 years ago
12

Partially factored form: f(x) = (x − 3)(x 3)(x2− 4x 5) use the quadratic formula to identify the zeroes of x2 − 4x 5. x =

Mathematics
1 answer:
Dimas [21]2 years ago
8 0

Answer:

2 ± i

Step-by-step explanation:

by 5, I assume you mean +5

x² - 4x + 5 = 0

x = (-b±(√(b²-4ac)) / 2a

x = (4 ± (√(16 - 20)) / 2

x = (4 ± (√(-4)) / 2

√-4 = √4√-1 which is 2i

x = (4 ± 2i) / 2

x = 2 ± i

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What is the vertex form of this equation y=3(x-2)^2-(x-5)^2​
jek_recluse [69]

Answer: Hello, it would be 3(x-2)^2-(x-5)^2

Step-by-step explanation:

6 0
3 years ago
Romeo paid $380.75 in car repairs. The sales tax rate is 10%. Which of the following is a reasonable estimate of the tax Romeo
xxMikexx [17]

Answer:

ADD THE TEN PERCENT IT WOULD BE 418.82

Step-by-step explanation:

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5 0
2 years ago
Determine which package of laundry soap is the better buy: 65 ounces for 6.99 of 120 ounces of 12.99
Rzqust [24]
65 oz for 6.99....
6.99/65 = 0.107 

120 oz for 12.99..
12.99 / 120 = 0.108

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3 0
3 years ago
Aless and Louis are going to put a rectangular pool in their backyard. The cost of installation is $6,000. If the dimensions of
lana [24]

Answer:

cost of the pool per cubic meters = $5

Step-by-step explanation:

The rectangular pool has a dimension of 30 m by 20 m by 2 m. To know the cost of the pool per cubic meter we have to calculate the volume of the pool . Then divide the total cost of the pool by it volume.

volume of the rectangular pool = length × height × width

volume of the rectangular pool = 30 × 20 × 2

volume of the rectangular pool = 1200  m²

The cost of installation is $6000 . The volume of the pool is 1200 cubic meters.

cost per cubic meters = total cost of installation/volume

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7 0
3 years ago
The sum of two numbers is 64. The difference between the numbers is 14. Write a system
Anastasy [175]

Answer:

They say that the sum of the two numbers (x and y) is 64, so we can write our first equation by adding them and setting that sum equal to 64:

x + y = 64

The question also tells us that their difference is 14. Similarly to before, we'll just subtract the two numbers and set that difference equal to 14:

x - y = 14

Now from here, you know how to continue with substitution to find the values for x and y. Just remember when you get a word problem to break it down and look for key words like sum, difference, or product, and from there you'll be able to build your system of equations.

8 0
2 years ago
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