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Oksi-84 [34.3K]
2 years ago
13

Find a polynomial function of lowest degree with

Mathematics
1 answer:
ra1l [238]2 years ago
8 0

Answer:

x^3-4x^2+25x-100

Step-by-step explanation:

We have 2 roots -5i and 4. Using the conjugate root theorem for the root -5i, we know that 5i should be another root

Combining the roots into a polynomial gives us:

(x+5i)(x-5i)(x-4)

Expand:

(x^2 + 25)(x-4)

x^3-4x^2+25x-100

You might be interested in
2x+4y=1<br> 3x-5y=7 <br> solve the simultaneous equations
WITCHER [35]

Answer:

y= -1/2

x=3/2

Step-by-step explanation:

first isolate x

2x+4y=1

2x=1-4y

x=(1-4y)/2

subsitute it in the second equation

look at the pic

4 0
4 years ago
Isaac buys 17 anti-pollution masks for £5.25 each.
mojhsa [17]

Answer:

A) Isaac should get £ 10.75 in change.

B) The price of the e-scooter in the sale is £ 366.3.

Step-by-step explanation:

A) Given that Isaac buys 17 anti-pollution masks for £ 5.25 each, and he pays with five £ 20 notes, to determine how much change Isaac should get, the following calculation must be performed:

(20 x 5) - (17 x 5.25) = X

100 - 89.25 = X

10.75 = X

So Isaac should get £ 10.75 in change.

B) Given that the normal price of an e-scooter is £ 370 and, in a sale, there is 1 off the normal price of the e-scooter, to determine the price of the e-scooter in the sale the following calculation must be performed:

370 - (370 x 0.01) = X

370 - 3.7 = X

366.3 = X

Thus, the price of the e-scooter in the sale is £ 366.3.

3 0
3 years ago
Need help here <br> who is right?​
FinnZ [79.3K]

Step-by-step explanation:

Olivia is correct.  Each O is opposite of the angle θ, and each A is adjacent.

Paula's first triangle was correct.  But on the second triangle, she reversed the O and A.

7 0
4 years ago
Solve for t and show your work in details please
disa [49]

Answer:

0t=8

Step-by-step explanation:

3t+4=12+3t

3t-3t=12-4

0t=8

5 0
3 years ago
PLEASE explain your answer! What is the value of q?
andrew-mc [135]

Answer:

The answer two your question is: 2 √14

Step-by-step explanation:

Use proportions to solve this exercise

Work with two triangles  ΔRSQ and ΔRTS

Side RQ = 14

Side RS = q

Side RS = q

Side RT = 4

                     14/q = q/4                            Solve for q

                     56 = q²

                     q = √56

Find prime factors of 56

                   56    2

                   28    2

                   14     2

                     7    7

                     1                     Then 56 = (2²)(2)(7)

                             =  √(2²)(2)(7)

                             = 2 √ 14

                     

7 0
3 years ago
Read 2 more answers
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