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laila [671]
3 years ago
14

For which of the following graphs is y a function of x

Mathematics
2 answers:
EleoNora [17]3 years ago
4 0

Answer:

can you give us the whole sheet?

Step-by-step explanation:

Alenkasestr [34]3 years ago
3 0
I’m going to have to see more
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According to the Complex Conjugate Root Theorem, if a+bi is a root of a quadratic equation, then __blank__ is also a root of the
Trava [24]

Answer:

a-bi


Step-by-step explanation:

If a quadratic equation lx^2+mx+n=0 has one imaginary root as a+bi then the other root is the conjugate of a+bi = a-bi

Because we have l, m and n are real numbers and they are the coefficients.

Sum of roots = a+bi + second root = -m/l

When -m/l is real because the ratio of two real numbers, left side also has to be real.

Since bi is one imaginary term already there other root should have -bi in it so that the sum becomes real.

i.e. other root will be of the form c-bi for some real c.

Now product of roots = (a+bi)(c-bi) = n/l

Since right side is real, left side also must be real.

i.e.imaginary part =0

bi(a-c) =0

Or a =c

i.e. other root c-bi = a-bi

Hence proved.


3 0
3 years ago
A hot air balloon is dropping from a height above the ground at a steady rate of 8 feet per second. It starts from a height of 7
pickupchik [31]
I believe the equation would be 765 -8t = 421. Then you would solve for t and get 43 seconds. I hope this helps!! :)
3 0
2 years ago
Amy has completed 21 deliveries so far this week.she needs to make 60 deliveries for the week.what percentage of her deliveries
Nonamiya [84]

Answer:

65% to go or 35% already delivered

Step-by-step explanation:

Amy has completed 35% of her deliveries since 21/60 is .35

If the question is how much she has left, Amy needs to complete 65% more of her deliveries.

If the question is how much she has completed, she has delivered 35% of her deliveries.

7 0
2 years ago
What is the better deal work a restaurant a make 18 dollars per hour no tipping allowed or restaurant b 10.50 per hour and you a
Lyrx [107]

Answer:

18$

Step-by-step explanation:

6 0
3 years ago
What scale factor was applied to the first rectangle to get the resulting image?
madam [21]

Answer:

The scale factor for the resultant rectangle is\frac{2}{5} units.

Step-by-step explanation:

Given two rectangles with sides 3 units and 7.5 units.

We have to find the scaling factors so that we can obtain bigger rectangle of 7.5 units from smaller rectangle of 3 units.

Scale factor is defined as the ratio  of corresponding side of given figure to the corresponding side of resulting figure.

That is \text{Scale factor}=\frac{\text{length of side of given figure}}{\text{length of side of resulting figure}}

Here, \text{Scale factor}=\frac{\text{length of side of given rectangle }}{\text{length of side of resulting rectangle}}

\text{Scale factor}=\frac{3}{7.5}=\frac{2}{5}

Hence, the scale factor for the resultant rectangle is\frac{2}{5} units.  

4 0
2 years ago
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