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3 years ago

I need help I don’t get it plz help

Mathematics

2 answers:

Effectus [21]3 years ago

6 0

C because 5 times 5 equals 25 but 5 times 2 equals 10 not 9

makkiz [27]3 years ago

4 0

D because it would 44 below since 4 times 7 = 28 so it would switch over for to 6 times 7 =44

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Factor: 10x^2-15x=0 ?

e-lub [12.9K]

Like every quadratic equation

$ax^2+bx+c=0$

where $c=0$

$ax^2+bx=0$

we can factor out $x$

$x(ax+b)=0$

And find the two solutions

$x=0,\quad x=-\dfrac{b}{a}$

In this case, the solutions are

$x=0,\quad x=\dfrac{3}{2}$

If you know that $x_1,\ x_2$ are the solutions to the quadratic equation

$ax^2+bx+c=0$

then you can factor the poynomial as

$a(x-x_1)(x-x_2)$

So, in this case, you have

$10x^2-15x = 10(x-0)\left(x-\dfrac{3}{2}\right)=10x\left(x-\dfrac{3}{2}\right)$

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4 years ago

What numbers does the square root of 125 fall between

attashe74 [19]

9 and 10

11 and 12

13 and 14

15 and 16

the square root of 125 is 11.18 so therefore it falls between 11 and 12

3 0

3 years ago

Read 2 more answers

Identify the percent amount and base in this problem.150 is 25 percent of what number.

NemiM [27]

let's say that number is "x", so that is then the 100%.

if 150 is 25%, what is "x"?

$\bf \begin{array}{ccll} amount&\%\\ \cline{1-2} x&100\\ 150&25 \end{array}\implies \cfrac{x}{150}=\cfrac{100}{25}\implies \cfrac{x}{150}=4\implies x=600$

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3 years ago

What is a example of a system

BabaBlast [244]

The definition of a system is a set of rules, an arrangement of things, or a group of related things that work toward a common goal. An example of a system are the laws and procedures of a democratic government. An example of a system is the way someone organizes their closet.

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3 years ago

Find the sum of the equations: 1/(x-2)+3/(x+3)=4/(x^2+x-6)

uysha [10]

Answer:

x= 7/4

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Step-by-step explanation:

Find the LCM for x-2,x+3,x^2+x-6 which is (x-2) (x+3)

then multiply

4 0

3 years ago