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kotegsom [21]
3 years ago
8

Help on this question please.

Mathematics
1 answer:
user100 [1]3 years ago
4 0

Answer:

a) P = 6x + 13//

b) i) x = 5//

ii) 9//

Step-by-step explanation:

a) P = 2(x+2) + 2(2x-1) + 3 + 8 m

= 2x+4 + 4x-2 + 3 + 8

= 6x + 13//

b) i) P = 43 m

43 = 6x + 13

43-13 = 6x

<u>3</u><u>0</u> = <u>6</u><u>x</u><u> </u>

6 6

x = 5//

ii) longest side = (2x-1) m

2 × 5 - 1

10-1 = 9//

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Solve the system of equations<br> y=-3/2x+9 <br> 2x+2y=16
ozzi

Answer:

x=2 and y=6

Step-by-step explanation:

5 0
2 years ago
Please help! 3 Questions please show how you solved the problem
Masteriza [31]

Answer:

1)  (-y^2-4y-8+4y^2+6y-3)

2)  32x^5y^4z^2

3)  x^3-9x^2+14x+24

Step-by-step explanation:

Given the expression we have to simplify the expression

1)   (-y^2-4y-8)-(-4y^2-6y+3)

⇒ (-y^2-4y-8+4y^2+6y-3)

Combining like terms, we get

⇒ 3y^2+2y-11

2.)    (2x^2y^3z^2)(4xy.4x^2)

⇒ (2x^2y^3z^2)(16x^3y)

⇒ 32x^5y^4z^2

3.)   (x-4)(x^2-5x-6)

⇒ x^3-5x^2-6x-4x^2+20x+24

⇒ x^3-9x^2+14x+24

5 0
2 years ago
Reciprocal of 12 by 15 is​
romanna [79]

the reciprocal is 15 by 12

5 0
2 years ago
Not really sure how to do this with a negative number
Oksi-84 [34.3K]
1/2*(-1/7) =  - (1*1)/(2*7)= - 1/14

(+)*(-) = (-)

Answer : - 1/14
4 0
3 years ago
Read 2 more answers
F(x)=-12x - 2x + 60x² +14x-60
Leona [35]

Answer:

x=±1. are the factors of the quadratic equation.

Step-by-step explanation:

Given quadratic expression, f(x)=-12x - 2x + 60x² +14x-60

Rearranging and adding the terms in the expression and equating to zero.

f(x)= 60x² -60=0

60(x² - 1) =0

The zero product property states that if the product of a⋅b=0 then either a or b equal zero or both of them must be equal to zero. This basic property helps us solve the quadratic equations like (x+2)(x-5)=0 where x =-2,5.

from the zero product property we can infer that 60≠0⇒x² - 1=0

⇒(x+1)×(x-1) = 0

⇒x=±1.

Therefore, x=±1. are the factors of the quadratic equation.

3 0
3 years ago
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