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Iteru [2.4K]
2 years ago
8

2 lines are not parallel, how many solutions are there

Mathematics
1 answer:
garri49 [273]2 years ago
5 0

Answer:

Either one: the two line have a point in common, or infinite: they are the same line.

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Kelly buys a book for 9.95 michael buys a pair of socks for 7.45.how much more money does kelly spend than michael
Luba_88 [7]

Answer:

$2.50

Step-by-step explanation:

To find this out u must subtract the two totals:

9.95- 7.45= $2.50

Hope this helped

Please mark brainless

So i can rank up ;D

8 0
2 years ago
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Combing like terms -4(7 + 3a) -6a(4a - 5)
lianna [129]

Answer:

-4(7 + 3a) - 6a(4a - 5) = <em><u>−24</u></em>x^{2}<em><u>+18a−28</u></em>

Step-by-step explanation:

7 0
2 years ago
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What is the factored form of x^3 + 125?
Lerok [7]

x^3+125=x^3+5^3

Sums of cubes can be factored as

a^3+b^3=(a+b)(a^2+ab+b^2)

So

x^3+125=(x+5)(x^2+5x+25)

7 0
3 years ago
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Joe and his family are flying to Texas. Their plane flies 645 miles at 215 mph. How long does the trip take? Solve and explain
olya-2409 [2.1K]
You can use the distance equation.. d = rt
d = distance = 645
r = rate = 215 mph
t = time = ???? find the time
645 = 215t
645/215 = 215t / 215
3 = t
t = 3
It took 3 hours

7 0
3 years ago
Find the product and sum of the roots of the equation:<br> 2x^2-9x-10=0
BabaBlast [244]

Answer:

<h3>           sum of the roots:    x_1+x_2=4\frac12</h3><h3>           product of the roots:     x_1x_2=-5             </h3><h3> Step-by-step explanation:</h3>

2x^2-9x-10=0\quad\implies\quad a=2\,,\ b=-9\,,\ c=-10

b^2-4ac=(-9)^2-4(2)(-10)=81+80=161>0

From Vieta's formulas applied to quadratic polynomial we have:

if    b^2-4ac\geqslant0   then

sum of roots:    x_1+x_2=-\dfrac ba=-\dfrac{-9}2=4\frac12

product of the roots:     x_1x_2=\dfrac ca=\dfrac{-10}2=-5

3 0
3 years ago
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