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RoseWind [281]
2 years ago
12

How can using properties help you to simplify expressions?

Mathematics
1 answer:
alina1380 [7]2 years ago
4 0
Well,properties can help you because you can shorten or make an equation more understandable, like using distributive property in the example 2(5x-3), you can rewrite it as 10x-6. See?
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Which expression is equivalent to −2.1+(−5.9)+(−3.7) ?
notka56 [123]

Answer:

The last one, −2.1−(5.9+3.7)

Step-by-step explanation:

−2.1+(−5.9)+(−3.7) = -2.1-5.9-3.7 = -11.7

the only expression that will come out as -11.7 is the last one

8 0
3 years ago
Barrett is ordering t-shirts for his school's student council. Company D charges a
stiv31 [10]

Answer:

A. 6.25x + 30 > 9.75x+12

Step-by-step explanation:

This is because we know from the problem that x is the minimum number of t-shirts. We also know Company D charges a 6.25 fee for each tee, while Company E charges a 9.75 fee per tee.  Based on the information we know, we can choose the problem.

5 0
1 year ago
If log2 5 = k, determine an expression for log32 5 in terms of k.
lukranit [14]

Answer:

log_3_2(5)=\frac{1}{5} k

Step-by-step explanation:

Let's start by using change of base property:

log_b(x)=\frac{log_a(x)}{log_a(b)}

So, for log_2(5)

log_2(5)=k=\frac{log(5)}{log(2)}\hspace{10}(1)

Now, using change of base for log_3_2(5)

log_3_2(5)=\frac{log(5)}{log(32)}

You can express 32 as:

2^5

Using reduction of power property:

log_z(x^y)=ylog_z(x)

log(32)=log(2^5)=5log(2)

Therefore:

log_3_2(5)=\frac{log(5)}{5*log(2)}=\frac{1}{5} \frac{log(5)}{log(2)}\hspace{10}(2)

As you can see the only difference between (1) and (2) is the coefficient \frac{1}{5} :

So:

\frac{log(5)}{log(2)} =k\\

log_3_2(5)=\frac{1}{5} \frac{log(5)}{log(2)} =\frac{1}{5} k

6 0
2 years ago
If A = (0,0) and B = (8, 2), what is the length of AB?
alexira [117]

the legenth is  (8,2) .

6 0
3 years ago
Need help on 8,9,10 I don’t know it and my work is due tmr
FrozenT [24]

Answer:

36 right

Step-by-step explanation:

4 0
2 years ago
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