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saul85 [17]
4 years ago
10

Please help with another math question

Mathematics
1 answer:
Vladimir79 [104]4 years ago
8 0
Given system of equations:
2y=4x+20 Eq 1
4y=6x+24 Eq 2
Divide both sides of equation 1 by 2.
y=2x+10
Substitute value of y in equation 2.
4(2x+10)=6x+24
8x+40=6x+24
2x+40=24
2x=-16
x=-8
Put value of x in y=2x+10
y=2(-8) + 10
y=-16+10
y=-6

Answer : (-8,-6)
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Form a polynomial whose real zeros and degree are given. ​zeros: negative 2−2​,negative 1−1​,44​, 55​; ​ degree: 4 type a polyno
prisoha [69]
We write the polynomial in its factored form first.
 We have then:
 (x + 2) * (x + 1) * (x-4) * (x-5)
 We now rewrite the polynomial:
 (x ^ 2 + x + 2x + 1) * (x ^ 2-5x-4x + 20)
 (x ^ 2 + 3x + 1) * (x ^ 2-9x + 20)
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 We now add terms of the same degree:
 x ^ 4 + (-9 + 3) x ^ 3 + (20-27 + 1) x ^ 2 + (60-9) x + (20)
 x ^ 4 + (-6) x ^ 3 + (-6) x ^ 2 + (21) x + (20)
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 Answer:
 
The polynomial sought is:
 
x ^ 4 - 6x ^ 3 - 6x ^ 2 + 21x + 20
6 0
4 years ago
I have a 3 foot board that needs to be equally decided into 1/2 how many extra peices will I have
anygoal [31]

Answer:

No extra pieces.

Step-by-step explanation:

Given:

Total number of foot board = 3

Equally divided into =  1/2

Question asked:

How many extra pieces will I have = ?

Solution:

By dividing 3 by 1/2 we can find the extra pieces.

                                                                 = 3\div\frac{1}{2}

                                                                 = 3\times\frac{2}{1}

                                                                 = 6

Since, the remainder is zero, thus there is no any extra pieces I have.

7 0
3 years ago
Find the value of x. <br><br> not multiple choice
olganol [36]

   

x is the middle line because it divides each catheter into two equal parts.

==> x is half the hypotenuse.

\displaystyle\bf\\x=\frac{30}{2}\\ \\\boxed{\bf x=15}



4 0
3 years ago
Which of the following numbers has a square root of 9<br><br> 3<br> 4.5<br> 18<br> 81
sashaice [31]

81 has the square root of 9.

Square root of 3= 1.73205080757

Square root of 4= 2.02484567313

Square root of 18= 4.24264068712

4 0
3 years ago
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makvit [3.9K]

Answer:

B. 6x + 8y = z , x represents the calzones sold; y represents grinders sold; z represents total sales.

7 0
2 years ago
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