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rjkz [21]
3 years ago
10

What does it mean when we say that two expressions define the same function?

Mathematics
1 answer:
USPshnik [31]3 years ago
4 0
Equivalent expressions are expressions that work the same even though they look different. If two algebraic expressions are equivalent, then the two expressions have the same value when we plug in the same value(s) for the variable(s).
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How is multiplying fractions the same as multiplying whole numbers and different
gtnhenbr [62]
Well one similarity is that since you have to multiply, integer rules still apply and that you can also multiply variables. A difference is that with fractions, you have to make a number into an improper fraction rather than just the regular way which would most likely be the whole number with a decimal.
5 0
3 years ago
Read 2 more answers
4. Simplify the expression. (6 points)
Lunna [17]

<span>4. Simplify the expression.
sine of x to the second power minus one divided by cosine of negative x</span>

<span>(1−sin2(x))/(sin(x)−csc(x))<span>

</span>sin2x+cos2x=1</span> <span>1−sin2x=cos2x<span>

</span>cos2(x)/(sin(x)−csc(x))</span> <span>csc(x)=1/sin(x)</span> <span>cos2(x)/(sin(x)− 1/sin(x))= cos2(x)/((sin2(x)− 1)/sin(x))</span> <span>sin2(x)− 1=-cos2(x)</span> <span>cos2(x)/(( -cos2(x))/sin(x))
=-sin(x)</span>
<span>the answer is the letter a) -sin x

</span><span>5. Find all solutions in the interval [0, 2π). (6 points)
sin2x + sin x = 0
</span> using a graphical tool  
the solutions   x1=0 x2=pi <span>x3=3pi/2
the answer is the letter </span><span>D) x = 0, π, three pi divided by two</span>

3 0
4 years ago
Read 2 more answers
What is the value of r?<br><br> (5, 2), (-7, r), m = 5/6
timama [110]
I decided to do mental math and figured out it was -12. but you can cross multiply since both answers have to equal one another. you will still get the answer.

8 0
3 years ago
Answer both questions for seventeen points and i’ll name you brainliest!! Type the correct answer in each box. Use numerals inst
Elden [556K]

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4 0
3 years ago
Reserved tickets for the football game cost $20 each and general admission tickets cost $12. The total ticket sales brought in $
Leya [2.2K]

so  what you would do is 20 x 12 and see what you get and the subtract it from 900 and then see what number would take you to 900

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