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hammer [34]
2 years ago
14

Evaluate 5x 2+ 2(4x – 7) – 8x for x = 3.

Mathematics
1 answer:
Sauron [17]2 years ago
6 0

Answer:

10x-14

Step-by-step explanation:

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If f(x) = 3x + 5 and g(x) = x - 1, then g[f(-3)] = ?
Dominik [7]

Answer:

-3fg

Step-by-step explanation:

I can't tell exactly what you're trying to say but if you're trying to say:

g x (f x (-3)), then here's how you do it:

g x (f x (-3))

Multiplying a positive and a negative equals a negative: (+) x (-) = (-), then use the commutative property to reorder the terms.

g x (-f x 3)

g x (-3f)

Multiplying a positive and a negative equals a negative: (+) x (-) = (-), the use the commutative property to reorder the terms.

-g x 3f

-3fg

8 0
3 years ago
Factor completely. <br> -3x^2+9x+30
STatiana [176]

Answer:

− 3 ( x − 5 ) ( x + 2 ) hope this helps

Step-by-step explanation:

6 0
2 years ago
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Question:<br><br>|x-2|, if x &gt; 5<br> simplify without the absolute value sign
nikitadnepr [17]

Answer:

x - 2, if x > 5

Step-by-step explanation:

The vertical lines either side of the expression mean absolute value.

The absolute value of a number is its <u>positive numerical value</u>.

if x > 5 then as 5 > 2, the values inside the vertical lines will always be positive.  Therefore, we can disregard the absolute value.

Therefore:  

x - 2,  if x > 5

To find the range (output values) of the expression, substitute x = 5 into the expression:

⇒ 5 - 2 = 3

Therefore, |x - 2| > 3,  if x > 5

5 0
2 years ago
WILL GIVE BRAINLIEST, PLS HELP
marusya05 [52]

My answers were

d=2.6

c=1.45

7 0
3 years ago
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A⁴×a²<br>answer question below please ​
Softa [21]

Step-by-step explanation:

•a⁴×a²

•a⁴+²

•a^6

I hope it will help you....

<h3>MARK ME BRAINLIEST...</h3>

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2 years ago
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