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Lemur [1.5K]
3 years ago
8

Need help with all these questions.

Mathematics
1 answer:
stich3 [128]3 years ago
6 0
A.Yes a function as a vertical line crosses the curve at one point only.
B.the domain is [-4,3]
C. the range is [-3,3]
D. it's -3
You might be interested in
2. David determines that 3 sqrt 2 cis(7pi/4) = -3+3i. When he considers the graphical representation of these numbers, he knows
fiasKO [112]

The correct rectangular equivalence of 3sqrt(2)·cis(7pi/4 ) is:

3sqrt(2)·cos( 7pi/4 ) + i·sqrt(2)·sin( 7pi/4 )  =  3 - 3i.

<h3>Where did David go wrong?</h3>

David mistakenly interchanged the Sin function and the Cos function when he was calculating the problem.

Hence the correct rectangular equivalence is:

3sqrt(2)·cos( 7pi/4 ) + i·sqrt(2)·sin( 7pi/4 )  =  3 - 3i.

<h3>What is rectangular equivalence?</h3>

An equation is rectangular in form when it is comprised of Variables like X and Y and can be represented on a Cartesian Plane.

Learn more about rectangular equivalence at:
brainly.com/question/27813225
#SPJ1



5 0
2 years ago
Helpp pls i need this asap
NNADVOKAT [17]
Tommy’s class rank dropped 10 %
5 0
3 years ago
What is 9.56 in simplest fraction form?
guapka [62]
9/56 is already in its simplest form. You CANNOT make it more reduced than this
4 0
3 years ago
Eric owns and operates the hot food truck.The expression 3.25b+2h gives the cost of burgers and h hot dogs.What is the cost of 4
Nat2105 [25]
3.25(4)+2(6) --plug in values
13+12 --multiply
$25 --answer
5 0
3 years ago
Suppose someone tells you that she has a triangle with sides having lengths 2.2, 4.5, and 6.7. Is this a right triangle?
laila [671]
You can apply the Pythagorean theorem:
a^2 + b^2 = c^2
c is the longest side of the triangle
2.2^2 + 4.2^2 = 6.7^2
4.84 + 17.64 = 44.89
22.48 =/= 44.89
That is not a right triangle
6 0
3 years ago
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