3 years ago

What is the sum of (3x + 4x? + 8) and (12x2 – 2x2+6) ?

Mathematics

1 answer:

ivann1987 [24]3 years ago

3 0

The answer would be 10x^2+7x+14.
Hope this helps!

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If line L in the xy-coordinate plane has a positive slope, what is the x-intercept of L ? (1) There are different points (a, b)

umka2103 [35]

Answer:

The x-intercept of L is 0

Step-by-step explanation:

1) If (a,b) and (c,d) belongs to theline L, then the equation of the line using two-points formula will be:

$y-b=(\frac{b-d}{a-c} ).(x-a)$

if we want to find the x-intercept of L we should set y=0.

$0-b=(\frac{b-d}{a-c} ).(x-a)$

getting x from that equation we will have :

$x=-b.\frac{a-c}{b-d}+a$

using distributive propertie and common denominator will be obtain

x= $x= \frac{bc-ad}{b-d}$

as we know that ad=bc the numerator will be equal to zero. Then x=0.

2) Using the same equation of line but using the points(m,n) and (-m, -n) we will set it as:

$y-n=\frac{-2n}{-2m}.(x-m)$

if we want to find the x-intercept of L we should set y=0.

$0-n=\frac{-2n}{-2m}.(x-m)$

getting x from that equation we will have :

$-n=\frac{n}{m}(x-m)$

$x= -n.\frac{m}{n} + m$

them

x = 0

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3 years ago

Simplify the expression.

Anna35 [415]

6,372 I used a calculator, I hope this helps

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Packaging milk in cardboard containers is a way to prevent destruction of which vitamin by ultraviolet light?

Diano4ka-milaya [45]

I had to look for the options and here is my answer:
The reason why cardboard containers are being used when packaging milk is to prevent destroying THIAMIN by the ultraviolet light from the sun. Thiamine is known as Vitamin B1. Hope this helps.

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What is the solution to the inequality -6x<54

german

Answer:

x > − 9

Step-by-step explanation:

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the distance between the bases in a baseball diamond is 27.4m. You picked up a ground ball at first base and you see the other t

Luda [366]

The answer would be 27.4m

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3 years ago