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2 years ago

Expand and simplify (x-2)(2x+4)

Mathematics

2 answers:

d1i1m1o1n [39]2 years ago

7 0

Answer:

$2 {x}^{2} - 8$

hope it's helpful ❤❤❤

THANK YOU.

shusha [124]2 years ago

5 0

Answer:

2x² - 8

Step-by-step explanation:

Given

(x - 2)(2x + 4)

Each term in the second factor is multiplied by each term in the first factor, that is

x(2x + 4) - 2(2x + 4) ← distribute both parenthesis

= 2x² + 4x - 4x - 8 ← collect like terms

= 2x² - 8

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Toby buys a new MP3 player for a price of $45.50. What is the total amount his credit card is

Fittoniya [83]

Answer:

$48.69

Step-by-step explanation:

45.50 + (45.50 * 0.07) = 48.69

hope this helps!

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3 years ago

5. How many solution/s do linear inequality in two variable have?

Lostsunrise [7]

Answer:

C. 2

A. (4, 5)

7.B.broken

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8.A.above the line

9.. 2x + y < 4

10.D. (-2,-3)

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2 years ago

Read 2 more answers

Quadrilateral ABCD has vertices A(-3, 1) B(0,4) C(4,0) D(1, -3).

Rina8888 [55]

I think the correct answer is D 1,-3

7 0

3 years ago

Find the endpoint:

scZoUnD [109]

Answer:

The coordinates of Point D are: (-5,-8)

Step-by-step explanation:

The formula for mid-point is given by:

$M = (\frac{x_1+x_2}{2} , \frac{y_1+y_2}{2})$

For the point (x1,y1) and (x2,y2)

Given that

M = (-3, -6)

C = (-1, -4) => (x1,y1)

Putting the values of given points in the formula for mid-point

$(-3,-6) = (\frac{-1+x_2}{2} , \frac{-4+y_2}{2})$

Putting respective coordinates equal

$-3 = \frac{-1+x_2}{2}\\-6 =-1+x_2\\x_2=-6+1\\x_2 = -5\\AND\\-6 = \frac{-4+y_2}{2}\\-12 = -4+y_2\\y_2 = -12+4\\y_2 = -8$

Hence,

The coordinates of Point D are: (-5,-8)

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2 years ago

After a 20% price reduction, a cordless phone sold for $48. What was the phones price before the reduction?

GalinKa [24]

After 20% reduction the price is $48 which means $48 is only 80% of the original price...so let x= original price
48=.8x 
60=x 
it was $60

6 0

2 years ago