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2 years ago

1. f(6) if f(x) = 4x I know the answer I just need the explanation please thank you!

Mathematics

2 answers:

mina [271]2 years ago

8 0

Answer: 24

Step-by-step explanation: if x=6 then f(x)=4x turns into f(6)=4(6). 4 x 6=24

suter [353]2 years ago

6 0

So when you have one of these, it’s just asking you so solve it as if x were 6 (as you see where the x in f(x) is replaced with a 6.

so you’d sub x for 6

giving you:

4 x (6)

which = 24

hope that makes sense :)

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Kelly blends coffee. She mixes brand A costing $6 per kilogram with brand B costing $8 per kilogram. How many kilograms of each

sukhopar [10]

Step-by-step explanation:

Let

be the kg of coffee of brand A in the mix and

be the kg of coffee of brand B in the mix.

The total kg must be

The cost per kg of the mix must br

7.20

. For this, the total cost of the mix will be

, so the total cost per kg of the mix will be

7.20

Now that we have our two equations, we can solve.

7.20

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From the first equation, we can multiply both sides by

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300

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2 years ago

What is six plus six plus six

Likurg_2 [28]

6+6=12 + 6= 18
6x3=18
(I feel like u know the answer, just asking to give away free points. Either way the answer is 18 and thank you.)

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3 years ago

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RADIO TELESCOPES The cross section of a large radio telescope is a parabola. The equation that describes the cross section is y=

Minchanka [31]

Answer:

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Step-by-step explanation:

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3 years ago

What is the slope of a line that passes through (–12,15) and (0,4)?

Romashka [77]

I think that the answer is negative 11 over 12

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Find the value of k so that the graph of 13y + kx = 4 and the line containing the points (5, -8) and (2, 4) are parallel.

guajiro [1.7K]

the graph of 13y + kx = 4 and the line containing the points (5, -8) and (2, 4) are parallel.

We find the slope of parallel line using two given points

(5, -8) and (2, 4)

Slope formula is

$slope = \frac{y_2-y_1}{x_2-x_1}$

$slope = \frac{4-(-8)}{2-5}$

$slope = \frac{12)}{-3}=-4$

so slope = -4

Slope of any two parallel lines are always equal

Lets find the slope of the equation 13y + kx = 4

Subtract kx on both sides

13 y = -kx + 4

Divide both sides by 13

$y= \frac{-kx}{13} + \frac{4}{13}$

Now slope = -k/13

We know slope of parallel lines are same

So the slope of 13y + kx = 4 is also -4

Hence we equation the slope and find out k

$\frac{-k}{13}=-4$

Multiply by 13 on both sides and divide by -1

k = 52

the value of k = 52

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