3 years ago

20. f(x) = -9x - 2 for x = 7

Mathematics

1 answer:

inn [45]3 years ago

7 0

Solve this by plugging in values into x and then perform the operation.

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Identify the coefficient:3n+9

aev [14]

3 is the coefficient because n is the variable

8 0

3 years ago

Find the equation of the linear function represented by the table below in slope-intercept form. x y 1 -3 2 -9 3 -15 4 -21

aleksley [76]

Answer:

The numbers:

1, -3, 2, -9, 3, -15, 4, -21,

are not linear.

Step-by-step explanation:

If it was linear:

4, 3, 2, 1, -3, -9, -15, -21

8 0

3 years ago

Evaluate: 3y + 1 = 13 + 4y<br> **What do you move first?!**

yan [13]

Answer: isolate the variable

Step-by-step explanation:

5 0

3 years ago

The combined height of one fir tree and one pine tree is 212121 meters. The height of 444 fir trees stacked on top of each other

Drupady [299]

Answer:

Height of fir tree = 9 meters

height of pine tree= 12 meters

Step-by-step explanation:

The combined height of one fir tree and one pine tree is 21 meters. The height of 4 fir trees stacked on top of each other is 24 meters taller than one pine tree.

Let x be the height of fir tree and y be the height of pine tree

$x+y=21$

Subtract x from both sides

$y=21-x$

height of 4 fir trees = pine tree +24

$4x=y+24$

Substitute 21-x or y in the above equation

$4x=21-x+24$

Add x on both sides

$5x=45$

Divide by 5 on both sides

x=9

Now plug in 9 for x and find out y

$y=21-x$

$y=21-9$

y=12

Height of fir tree = 9 meters

height of pine tree= 12 meters

4 0

3 years ago

Find the product. 1.5m6(-2m2)4

kogti [31]

9514 1404 393

Answer:

24m^14

Step-by-step explanation:

It looks like you want to simplify ...

$1.5m^6(-2m^2)^4=(1.5)(-2)^4(m^6)(m^{2\cdot4})\\\\=(1.5)(16)m^{6+8}=\boxed{24m^{14}}$

The applicable rules of exponents are ...

(a^b)(a^c) = a^(b+c)

(a^b)^c = a^(bc)

(ab)^c = (a^c)(b^c)

5 0

3 years ago