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damaskus [11]
3 years ago
6

Select the correct answer. Which statement is true about this quadratic equation? y=2x^2 + 9x-12 a There is one complex solution

b there are two complex solutions c There is one real solution d There are two real solutions​

Mathematics
1 answer:
Yakvenalex [24]3 years ago
5 0

Answer:

There are 2 complex solutions

Step-by-step explanation:

Both imaginary Solutions

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What set has a fixed number of elements
victus00 [196]

Answer:

Finite Set

Step-by-step explanation:

A finite set is a set that contains a fixed number of elements, that is, the elements are countable. However, the opposite of a finite set is an infinite set which does not have a fixed number of elements and is uncountable.

Examples of a finite set are

  • The set of all past American Presidents
  • The set of all persons in China
  • The set of birds in Australia

a

7 0
4 years ago
Point P(-5, 2) is translated using the rule (x+3, y-1). What is the x-coordinate of P' ?
ss7ja [257]
Translate, in math, is just a fancy word for "change" or "move". We're changing (-5, 2) using x + 3 and y - 1. If the x value is -5, what is x + 3?

(-5) + 3 = -2

And for the y - 1?

(2) - 1 = 1.

Your answer is P'(-2, 1)
<em />
<em>
</em><em>Don't forget to rate this answer the Brainliest!</em>

4 0
3 years ago
john has 7f five dollar bills. he wants to buy a baseball bat that costs $38. A.how much money does he have? B. does he have eno
elena55 [62]
A. 7 times 5 equals $35

B.No he does not have enough money because he only has $35 and he needs $3 more.
5 0
3 years ago
The rate at which an assembly line workers efficiency E (expressed as a percent) changes with respect to time t is given by E'(t
zavuch27 [327]

By the fundamental theorem of calculus,

E(t)=E(1)+\displaystyle\int_1^t E'(u)\,\mathrm du

So we have

E(t)=92+\displaystyle\int_1^t(75-6u)\,\mathrm du

E(t)=92+(75u-3u^2)\bigg|_1^t

E(t)=20 + 75 t - 3 t^2

4 0
3 years ago
Prove:<br><br> (2(tan x - cot x) / (tan^2 x - cot^2 x} = sin (2x)
KatRina [158]
So here is how we are going to prove that <span>(2(tan x - cot x) / (tan^2 x - cot^2 x} = sin (2x). Follow it step by step:
LS  =   </span><span><span>2(tanx−cotx)
</span><span>        ------------------
           ta<span>n^2</span>−co<span>t^2</span>x
     = </span></span>2(tanx−cotx<span>)
    ----------------------
    </span><span>(tanx−cotx)(tanx+cotx)
    =        2
      -------------------
        </span><span>(tanx+cotx)
   =        2
      -----------------
       S</span>i<span>n2</span>x+co<span>s2</span><span>x
       ----------------</span><span>         sinxcosx
    =      2
      -------------
            1
      ------------
</span>      sinxcos<span>x
</span>   = 2sinxcosx
   = sin2x
I hope that is the answer that you are looking for. Let me know if you need more help next time. Thanks for posting your question here in brainly!
4 0
3 years ago
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