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3 years ago

Pls help me. rlly need help. question in picture. pls hurry

Mathematics

1 answer:

Goshia [24]3 years ago

7 0

Answer:

$(x-9)(x-6)$

Step-by-step explanation:

Factor $x^2-15x+54$

Find two numbers that add up to -15 and multiply to 54 (hint hint, two negatives makes a positive hint hint):

$-9, -6$

Rewrite the expression:

$(x-9)(x-6)$

Finito.

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The graph shows a vertical translation of y = x.

iris [78.8K]

Answer:

D is the answer

Step-by-step explanation:

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3 years ago

Consider the radical equation (3√6-x)+4=-8. Explain why the calculation in Problem 1 does not produce a solution to the equation

murzikaleks [220]

Answer:

See explanation below

Step-by-step explanation:

First we will solve the radical equation (which I guess was problem 1),

Let's start by simplifying it:

$3\sqrt{6-x}+4=-8\\ 3\sqrt{6-x}=-8-4\\ 3\sqrt{6-x}=-12\\\sqrt{6-x}=-4$

Now we will solve the equation by squaring both sides of the equation:

$\sqrt{6-x} =-4\\6-x=-4^{2} \\6-x=16\\-x=16-6\\-x=10\\x=-10$

So the calculation for x was that x = -10

However, this does not produce a solution to the equation: When we plug this value into the radical equation we get:

$3\sqrt{6-x} +4= -8\\3\sqrt{6-(-10)} +4=-8\\3\sqrt{16}+4 = -8\\ 3(4)+4 = -8\\12 + 4 = -8$

This happens because when we first squared both sides of the equation in the first part of the problem we missed one value for x (remember that all roots have 2 answers, a positive one and a negative one) while squares are always positive.

When we squared the root, we missed one value for x and that is why the calculation does not produce a solution to the equation.

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3 years ago

Why is life like a shower?

Snezhnost [94]

Step-by-step explanation:

Cell Phones Are Full of Bacteria

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3 years ago

Read 2 more answers

What is the discount rate for a $120.00 camera that is on sale for $105.00?

balu736 [363]

The resent value, also called "discounted value," is the current worth of the camera. So, we know that the discounted value is $105.00.
The first price of the camera was $120.00.
This means that the price is decreased. In order to calculate the discount rate we should find out how many percent the camera was discounted. 105 from 120 is: 105/120*100=87.5
So, the discount is 100-87.5=12.5 %.

7 0

3 years ago

Hey can someone help stats

dangina [55]

What’s the question?

7 0

3 years ago

Pls help me. rlly need help. question in picture. pls hurry​

Pls help me. rlly need help. question in picture. pls hurry