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3 years ago

10

Solve by factorisation 2x^2+3x-20=0

1 answer:

kiruha [24]3 years ago

3 0

Answer:

(2x-5)(x+4)

....................

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"let v = r 2 with the usual addition and scalar multiplication defined by k(u1, u2) = (ku1, 0). determine which of the five axio

expeople1 [14]

Let $\mathbf u\in\mathbb R^2$ , where

$\mathbf u=(u_1,u_2)$

and let $k\in\mathbb R$ be any real constant.

Given this definition of scalar multiplication, we can see right away that there is no identity element $e$ such that

$e\mathbf u=\mathbf u$

because

$e\mathbf u=e(u_1,u_2)=(eu_1,0)\neq(u_1,u_2)=\mathbf u$

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3 years ago

Alyssa bought a dress for $52 and 3 pairs of jeans. She paid a total of $125. Write an equation to represent this word problem

larisa86 [58]

Answer:

..

Step-by-step explanation:

If the dress is $52 all you have to do I subtract the total ($125)from the amount the dress was, which is 76

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2 years ago

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Xy=22 as a proportion please! :)

Elina [12.6K]

I’m sorry if I’m wrong but I do think your answer is X=22y^-1

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1 year ago

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Please help… sorry for asking a lot of questions

leva [86]

This correct answer is 10

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3 years ago

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Can someone help me

Leya [2.2K]

Answer:

Step-by-step explanation:

1/4 : 2 * 1/4 = 6 : x

0.25 : 2/4 = 6 : x

0.25 : 1/2 = 6 : x

0.25 : 0.5 = 6 : x

0.5 = 6 : x

x = 6 : 0.5

x = 12

6 0

3 years ago