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densk [106]
2 years ago
6

Could you tell me the answer to this problem −54.9 − (−18.75)

Mathematics
1 answer:
trapecia [35]2 years ago
4 0
The answer is -36.15
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Please help! What is -9/5 - (-9/5)? A. 0 B.2 C. 18/5 D. -18/5
Pie

Answer:6

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
3cis(5pi/4) in polar form
madreJ [45]
Rectangular form:
z = -2.1213203-2.1213203i

Angle notation (phasor):
z = 3 ∠ -135°

Polar form:
z = 3 × (cos (-135°) + i sin (-135°))

Exponential form:
z = 3 × ei (-0.75) = 3 × ei (-3π/4)

Polar coordinates:
r = |z| = 3 ... magnitude (modulus, absolute value)
θ = arg z = -2.3561945 rad = -135° = -0.75π = -3π/4 rad ... angle (argument or phase)

Cartesian coordinates:
Cartesian form of imaginary number: z = -2.1213203-2.1213203i
Real part: x = Re z = -2.121
Imaginary part: y = Im z = -2.12132034
8 0
2 years ago
If g(x) = 2x2 + 6x + 5, use synthetic division to find g(-5).
diamong [38]
<h3>Answer:  25</h3>

=================================================

Explanation:

Check out the image below. I've posted the synthetic division table. The value at the very end of the bottom row is the remainder. By the remainder theorem, this is exactly the value of g(-5).

Recall the remainder theorem says: If you divide p(x) by (x-k), then the remainder is p(k). In this case, k = -5 is our test root which is the value placed in the box on the left.

As a way to check the answer, we can say

g(x) = 2x^2 + 6x + 5

g(-5) = 2(-5)^2 + 6(-5) + 5

g(-5) = 25

So the answer is confirmed.

6 0
3 years ago
In Jack's class, 7 out of 25 students have hazel eyes. What percent of the class has hazel eyes?
denis23 [38]
You're going to set up a proportion. % over 100 = is over of. You're looking for the percent so that's your x. X over 100=7 over 25. Cross multiply to get 25x=700. Divide both sides by 25 and your answer is 28%
4 0
3 years ago
What is the difference of the polynomials?<br> (x2 - 6x + 2) - (3x? – 7x-8)
bagirrra123 [75]
The difference is 10.
4 0
2 years ago
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