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Serhud [2]
3 years ago
9

Please help. I will give you a brainliest.

Mathematics
2 answers:
mixas84 [53]3 years ago
4 0

Answer:

Subtracting 4.2x from.

Step-by-step explanation:

Hope this helped!

GREYUIT [131]3 years ago
3 0

Answer:

second choice

Step-by-step explanation:

You might be interested in
Please answer correctly !!!!!!! Will mark Brianliest !!!!!!!!!!!
icang [17]

Answer:

x=-2\\x=2

(You only need to give one solution)

Step-by-step explanation:

We have the following equation

(x^2+1)^2-5x^2-5=0

First, we need to foil out the parenthesis

x^4+2x^2+1-5x^2-5=0

Now we can combine the like terms

x^4-3x^2-4=0

Now, we need to factor this equation.

To factor this, we need to find a set of numbers that add together to get -3 and multiply to give us -4.

The pair of numbers that would do this would be 1 and -4.

This means that our factored form would be

(x^2-4)(x^2+1)=0

As the first binomial is a difference of squares, it can be factored futher into

(x^2+1)(x+2)(x-2)=0

Now, we can get our solutions.

The first binomial will produce two complex (Not real) solutions.

x+2=0\\\\x=-2

x-2=0\\\\x=2

So our solutions to this equation are

x=-2\\x=2

3 0
3 years ago
Ayesha bought a 24-pack of lip gloss for $18.96. What is the unit cost per tube of lip gloss?
bogdanovich [222]
Divide the total # of lip gloss Ayesha bought by the total cost.

24/$18.96
=$1.26582278 If the unit cost is rounded to the hundreths, it'll be $1.27.
4 0
3 years ago
Read 2 more answers
Evaluate the polynomial when x = 3 and y = - 8<br>x2 + y2 + xy<br>​
Ivahew [28]
<h3>Answer: 49</h3>

Work Shown:

Replace x with 3, replace y with -8. Use order of operations PEMDAS to simplify.

x^2 + y^2 + x*y

3^2 + (-8)^2 + 3*(-8)

9 + 64 - 24

73 - 24

49

5 0
3 years ago
Read 2 more answers
Mr lin has 10 baesball his gym make 4 teams
spin [16.1K]

Answer:

Mr. Lin can only have 2 people in his 4 teams but he will have 2 people without a group

Step-by-step explanation:

It would be better if he had 5 teams because everyone will be able to be in a team

4 0
3 years ago
What did the friend do wrong in this equation?
rjkz [21]

Answer:

4x + 2x = 90 NOT 180.

Step-by-step explanation:

x = 15 is the correct answer.

4 0
3 years ago
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