2 years ago

A new science website has $1824 to buy online ads. If each cost $96, how many ads can the website purchase

Mathematics

1 answer:

a_sh-v [17]2 years ago

3 0

Answer:

19 ads

Step-by-step explanation:

just divide 1824 by 96

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Given the function ƒ(x) = 20x2 − 18x − 25, find ƒ(−1).

dlinn [17]

f(x) = 20x² - 18x - 25

f(-1) = 20(-1)² - 18(-1) - 25

= 20 + 18 - 25

= 13

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3 years ago

True or False? The graphs of y = tan x and y = cos x have the same period.

Sveta_85 [38]

Answer:

False

Step-by-step explanation:

False. The period of y = tan x is π, whereas that of y = cos x is 2π.

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2 years ago

Explain how you got the answer

Gnoma [55]

Answer:

$\huge\boxed{Center = (3,3),Radius = 2\sqrt{15} }$

Step-by-step explanation:

Given equation is

$x^2 + y^2 -6x-6y -42 = 0$

Adding 42 to both sides

$x^2 + y^2 -6x-6y = 42\\$

Completing squares

$x^2 -6x+y^2 -6x = 42\\(x)^2 - 2(x)(3) +y^2 - 2(y)(3) = 42$

Adding (3)² => 9 and (3)² => 9 to both sides

$(x-3)^2+(y-3)^2 = 42+9+9\\(x-3)^2 + (y-3)^2 = 60\\(x-3)^2 (y-3)^2 = (2{\sqrt{15})^2}$

Comparing it with $(x-h)^2+(y-k)^2 = r^2$ where Center = (h,k) and Radius = r

We get:

Center = (3,3)

Radius = $2\sqrt{15}$

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3 years ago

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Answer:

i think a

Step-by-step explanation:

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