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evablogger [386]
2 years ago
14

Solve by completing the square. Show all steps for full credit. X^2-6x+8=0

Mathematics
1 answer:
Kruka [31]2 years ago
5 0

answer:

x = 2 \ , \ 4

step-by-step explanation:

\sf x^2-6x+8=0

\sf x^2-4x-2x+8=0

\sf x(x-4)-2(x-4)=0

\sf (x-4)(x-2) = 0

\sf x = 2 \ , \ 4

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Find XY.<br> ._________.___.<br> X Y 7 Z
Rufina [12.5K]

Answer:

hey dude, The formula is (x-y)³=x³-3x²y+3xy²-y³.

6 0
3 years ago
Identify the set of numbers that best describes every situation. Select all that apply. The height of an airplane as it descends
Aleks04 [339]

Answer:

a, c, d, e could all be used to describe this

Step-by-step explanation:

If a plane is defending it is so many feet from the ground and feet are in whole numbers. integers, rational numbers, real numbers, and whole numbers are all whole

5 0
3 years ago
Ajax is 5 and 1 fourth feet tall. His sister is 3 eighths foot shorter than Ajax How tall is Ajax Sister?
user100 [1]

Answer:

4\frac{3}{4} feet tall

Step-by-step explanation:

Ajax is "5 and 1 fourth feet tall", which can be written as the mixed number 5\frac{1}{4} .

His sister is "3 eighths foot shorter", so she's 3/8 feet shorter than 5 1/4.

So, this is just a subtraction problem:

5\frac{1}{4} -\frac{3}{8}

To solve this, we want to convert 5 1/4 into an improper fraction, which is: \frac{21}{4} . Now, we want to find a common denominator. In this case, that common denominator is 8, so \frac{21}{4} =\frac{42}{8} .

Finally, we subtract 3/8 from 42/8: \frac{42}{8} -\frac{3}{8} =\frac{39}{8} . So, Ajax's sister is 39/8 feet. Converting this into a mixed number, we have: 39/8 = 4\frac{6}{8} =4\frac{3}{4} .

Therefore, Ajax's sister is 4\frac{3}{4} feet tall.

Hope this helps!

7 0
3 years ago
Read 2 more answers
Me need help pweaseee can anyone help
Kryger [21]

Answer:

B

Step-by-step explanation:

A 90 degree rotation would be a rotation of 90° about the origin. Knowing this, we can eliminate C since it is a 180° rotation. We can also eliminate A, as it would be a 0° or 360° rotation. This leaves us with B and C.

A counterclockwise rotation would be one that goes the opposite direction of the rotation of the hands of a clock. A 90° counterclockwise rotation would yield triangle B, making that our answer.

I hope you find my answer and explanation to be helpful. Happy studying.

6 0
3 years ago
The population of Watesville decreases at a rate of 1.6% per year. If the population was 62,500 in 2014, what will it be in 2020
yKpoI14uk [10]

Answer:

56,735 people

Step-by-step explanation:

We can set up an equation to model this:

The equation for exponential decay is y = C(1 - r)^t, where C is the original amount, r is rate of change, and t is time.

We can plug in the corresponding values and solve:

y = 62500(1 - 0.016)^6

y = 62500(0.984)^6

y = (62500)(0.9077)

y = 56,734.94, which we can round to 56,735 people

8 0
3 years ago
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