2 years ago

PLEASE HELP WITH THIS ONE QUESTION

Mathematics

1 answer:

EastWind [94]2 years ago

7 0

Answer:

x^2+2x+5

since 4_20=-16<0

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Pleaseee helppp yalllll

Sliva [168]

Answer:

285

Step-by-step explanation:

585 - 300 = 285

3 0

2 years ago

Compute i^1+i^2+i^3....i^99+i^100

fgiga [73]

Good morning ☕️

Answer:

Step-by-step explanation:

Consider the sum S = i¹ + i² + i³ +. . .+ i⁹⁹ + i¹⁰⁰

S = i¹ + i² + i³ + . . . + i⁹⁹ + i¹⁰⁰

S = a₁ + a₂ + a₃ +. . . + a₉₉ + a₁₀₀

then, S is the sum of 100 consecutive terms of a geometric sequence (an)

where the first term a1 = i¹ = i and the common ratio = i

FORMULA:______________________

$S=(term1)*\frac{1-(common.ratio)^{number.of.terms}}{1-(common.ratio)}$

_______________________________

then

$S=i*\frac{1-i^{100} }{1-i}$

or i¹⁰⁰ = (i⁴)²⁵ = 1²⁵ = 1 (we know that i⁴ = 1)

Hence

S = 0

7 0

3 years ago

Two mechanics worked on a car. The first mechanic charged $115 per hour, and the second mechanic charged $50 per hour. The mecha

anygoal [31]

115*20=2300.
50*5=250

First mechanic 20 hours
Second mechanic 5 hours

8 0

2 years ago

Nestor the clown does the face painting at the city carnival. She paints seven faces every 21 minutes and spend the same amount

Likurg_2 [28]

Answer:

21/F=M

Step-by-step explanation:

3 minutes per face so divide time and faces to get the time.

F=7 M=3

4 0

2 years ago

A toy that originally sold for 12 dollars went of sale for 8 dollars what was the percent discount? Remember to show your work!

harkovskaia [24]

12———-100%
8 ———— x
X=(8*100)/12=800/12=66.66%
Then discount percent is 100-66.66=33.33%

3 0

2 years ago