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Goryan [66]
4 years ago
7

Consider the following two expressions, the only difference being the presence or absence of parentheses. expression 1:expressio

n 2:3x2(3x)2 Calculate the difference between the two expressions when x = 3; that is, evaluate both expressions then subtract one value from the other.

Mathematics
1 answer:
PilotLPTM [1.2K]4 years ago
7 0

Answer:

Please see attachment

Step-by-step explanation:

Please see attachment

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Which statement about 3(x2 – 4) is true?
atroni [7]

Answer:

The expression is not completely factored.

Step-by-step explanation:

The expression of {x}^{2} - 4 can be broken up into two binomials:

[x - 2][x + 2]

Together, you have this:

3[x - 2][x + 2]

** There is alot of missing information to this question, but at least you know how to work this out.

I am joyous to assist you anytime.

7 0
3 years ago
A large envelope is 0.085 cm thick. How thick would a stack of 100 of these envelopes be? Explain your reasoning.
Pavlova-9 [17]

Answer:

8.5 cm

Step-by-step explanation:

I think because wouldn't you take the 0.085 · 100

(get mad if I'm wrong i might be)

3 0
3 years ago
A swimming pool charges $6 for adults and $4 for children. On a particular day, they made $1,326 in admissions. If a total of 28
muminat
X= # of adults
y= # of children

1326= 6x + 4y
289= x + y

We are going to do substitution.

x = 289-y
1326= 6(289-y) + 4y
1326= 1734 -6y + 4y
1326= 1734 + -2y
-408= -2y
204 = y

Since we now have a value for y, we should plug that back into the equation we got the x value from to find the actual numerical value of x.

289= x + y
289= x + 204
85= x

In conclusion, 85 adults and 204 adults went to the swimming pool.
6 0
3 years ago
Which of the following is the conjugate of 10 − 3i?
Oksana_A [137]
A complex number is made of two parts: one real part (without i) and one imaginary part (with i).
The conjugate of a complex number is found by inverting the sign of the imaginary part of the number.
Therefore, the conjugate of 10+3i is 10−3i
8 0
3 years ago
Read 2 more answers
victor has the map scale missing.he knows the distance from the lake to the youth center is 8 miles. on the map they are 2in. ap
kupik [55]
The <u>correct scale</u> is 1 in = 4 mi.

<u>Explanation</u>:

The scale tells us what a given measurement on the map equals in real-life distance.  

The measurement on the map that we have is 2 inches, and it equals 8 miles:

2 in = 8 mi

This can also be written as 2/8.  This fraction can be simplified, since both 2 and 8 are divisible by 2; it will simplify to 1/4.  This is the same as 
1 in = 4 mi.
6 0
4 years ago
Read 2 more answers
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