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2 years ago

Please help this is due at 8 i'll mark you brainlist

Mathematics

1 answer:

solniwko [45]2 years ago

6 0

Answer:

Surface Area = 1633.63 square yd

Step-by-step explanation:

$r = 10, \ h = 16\\\\Surface \ Area = 2 \pi r^2 + 2 \pi r h\\\\$

$= 2 \pi \times 10^2 + 2 \pi \times 10 \times 16\\\\=200 \pi + 320 \pi\\\\= 520 \pi\\\\ =1633.63 \ yd ^2$

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If f(x) = 2x - 9, which of the following are correct? Select all that apply. f(-1) = -11 f(2) = 5 f(3) = -3 f(0) = -9 f(-3) = 15

Yuri [45]

f(-1) = -11 and f(3) = -3 . these functions are true .

What does a math function mean?

A relationship between a group of inputs and one output each is referred to as a function.
A function is an association between inputs in which each input is connected to precisely one output.
A domain, codomain, or range exists for every function. f(x), where x is the input, is a common way to refer to a function.
In mathematics, a function is an expression, rule, or law that establishes the relationship between two variables (the dependent variable).

given function f(x) = 2x - 9

f(-1) = -11 ⇒ x = -1 put in function

f( -1 ) = 2 * -1 - 9 ⇒ - 11

f(2) = 5 ⇒ x = 2 put in function

f( 2 ) = 2 * 5 - 9 = 1

f(3) = -3 ⇒ x = 3 put in function

f ( 3 ) = 2 * 3 - 9 = -3

f(-3) = 15 ⇒ x = -3 put in function

f( -3) = 2 * -3 - 9 = - 15

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Llana [10]

Answer:

Step-by-step explanation:

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