Use the zero-product property to solve each question. 1) (2x-7)(4x+10)=0

Mathematics

1 answer:

Paraphin [41]4 years ago

5 0

6x -3=0
6x+3+3
6x=3 i believe that will be your answer

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What expressions are equal 10^5

ryzh [129]

Answer:

10^5 = 100.000

Step-by-step explanation:

We know that 10^5 = 10 * 10* 10 * 10 * 10 = 100.000.

So, we have that 10^5 = 100.000

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3 years ago

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Please help on B C D ONLY PLEASE

Rama09 [41]

The answer for B is: 40 - (7.50 x 4) = 10 Because 7.50 x 4 = 30 and 40 - 30 = 10 So they are left with $10 after paying for the tickets

The answer for C is: Miguel and his 3 friends started with $40 and had a fee of $7.50 for each ticket and there are 4 people. 4 x 7.50 = 30 and 40 - 30 = 10 so they are left with $10 to spend on snacks and other stuff!

Idk the answer for D sorry about that!

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4 years ago

Which of these is an odd function?

Yakvenalex [24]

Answer:

$f(x)=2x^3+x$

Step-by-step explanation:

An odd function <em>f</em> is one where $f(-x)=-f(x)$ . We can interpret this is meaning: reflecting the graph horizontally $f(-x)$ has the same effect as reflecting it vertically $-f(x)$ . The only graphs that meet this requirement are ones with reflectional symmetry across the line y = x, so we can immediately elimate the functions $f(x)=3x^2+7$ and $f(x)=5x^2-6$ , which have horizontal symmetry, but not the kind of symmetry we're looking for.

That leaves us with $f(x)=2x^3+x$ and $f(x)=4x^3+2x^2$ . One feature of exponents we can utilize is that -1 to an even power is 1, while -1 to an odd power is -1. If we want $f(-x)=-f(x)$ , we need to flip the signs of <em>all </em>the coefficients, and we can only do that if all the powers of x are odd. The only function with only odd powers of x is $f(x)=2x^3+x$ , and plugging in -x to the function reveals that