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2 years ago

If f(x) = 4+ 3x, what is f(-9)?

Mathematics

2 answers:

Vlad [161]2 years ago

8 0

Answer:

-23

Step-by-step explanation:

goldfiish [28.3K]2 years ago

3 0

Answer:

f(-9) is -9 or -9f

Step-by-step explanation:

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Expand the expression log base 6 (7k-1) = 3

Ket [755]

K = 3/14 should be the correct answer

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3 years ago

Can someone please solve this ASAP?

olga2289 [7]

The ladder and the wall form a right triangle.
The length is the hypotenuse = 15.
The base = 2*(15/5) = 2*3 = 6

Use pythagorean theorem to find other side of triangle:
$a^2 + b^2 = c^2 \\ \\ a^2 + 6^2 = 15^2 \\ \\ a^2 + 36 = 225 \\ \\ a^2 = 189 \\ \\ a = \sqrt{189} = 3 \sqrt{21}$

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2 years ago

Are the compositions of f(x)=1 and g(x)=2 commutative. pls help

miskamm [114]

Answer: No

f(g(x))=1

g(f(x))=2

Because f(g(x)) ≠ g(f(x)) The compositions are not commutative

5 0

2 years ago

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What percent of 600 is 750

Karo-lina-s [1.5K]

750 divided by 600 x 100 = 125%

7 0

3 years ago

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On weekdays it costs £6.50 per hour to hire a tennis court at Meadway

Minchanka [31]

Answer: £16.90

Step-by-step explanation:

From the question, we are informed that it costs £6.50 per hour to hire a tennis court at Meadway Tennis Club but that on Saturdays the cost is 30% more. The cost in Saturdays per hour will then be:

= £6.50 + (30% × £6.50)

= £6.50 + ( 0.3 × £6.50)

= £6.50 + £1.95

= £8.45

The cost to hire a court for 2 hours on a Saturday will then be:

= £8.45 × 2

= £16.90

7 0

2 years ago