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3 years ago

Solve the equation 20 equals negative d + 16....

Mathematics

1 answer:

77julia77 [94]3 years ago

8 0

Answer:

d = -4

Step-by-step explanation:

20 = -d + 16

Isolate d

20-16 = -d

4 = -d divide both sides by (-1)

-4 = d

d = -4 (variable on left side is standard)

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Which best describes the graph of a quadratic function witha discriminant of -7?

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3 years ago

Find the limit. use l'hospital's rule if appropriate. if there is a more elementary method, consider using it. lim x→1 1 − x + l

AfilCa [17]

$\displaystyle\lim_{x\to1}\frac{1-x+\ln x}{1+\cos5\pi x}$

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$\displaystyle\lim_{x\to1}\frac{-1+\frac1x}{-5\pi\sin5\pi x}$

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3 years ago

The quotient of 2 times a number and 19

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2 years ago

Read 2 more answers

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MrMuchimi

Answer:what

Step-by-step explanation:

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3 years ago

PLEASE HELP SUPER EASY!!!

Effectus [21]

A1. 12 i.e option D

A2. 3n-7 i.e option A

A3. -6n+20 i.e option D

A4. -70 i.e option C

Step-by-step explanation:

aₙ = a₁ + (n - 1) × d

aₙ = the nᵗʰ term in the sequence

a₁ = the first term in the sequence

d = the common difference between terms

Using the above formula to solve the first part, we have :

-8 = a₁ + (2-1) × 5

-13 = a₁

a₆ = -13 + (6-1) × 5

a₆ = 12

For the second part, we have :

aₙ = -4 + (n-1)×3

aₙ = -4 + 3n -3

aₙ = 3n-7

For the third part, we have :

a₁=14 ; d=-6

aₙ = 14 + (n-1)×(-6)

aₙ = -6n + 20

For the fourth part, we have :

aₙ = 14 + (15-1)×(-6)

aₙ = -70

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3 years ago