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maks197457 [2]
3 years ago
6

Explain why 2+x and x+3 are equivalent

Mathematics
1 answer:
wlad13 [49]3 years ago
5 0

Check whether the two expressions 2x+3y2x+3y and 2y+3x2y+3x equivalent.

The first expression is the sum of 2x2x 's and 3y3y 's whereas the second one is the sum of 3x3x 's and 2y2y 's.

Let us evaluate the expressions for some values of xx and yy . Take x=0x=0 and y=1y=1 .

2(0)+3(1)=0+3=32(1)+3(0)=2+0=22(0)+3(1)=0+3=32(1)+3(0)=2+0=2

So, there is at least one pair of values of the variables for which the two expressions are not the same.

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List the integers satisfy the inequality -1 less than 2x - 5 less or equal to 5<br>​
Ilya [14]

Answer:

integers are { 3 , 4 , 5 }

Step-by-step explanation:

- 1 < 2x - 5 ≤ 5

- 1 + 5 < 2x - 5 + 5 ≤ 5 + 5                           [ adding by 5 ]

4 < 2x + 0 ≤ 10

4 < 2x ≤ 10

2 < x ≤ 5                                                     { divide by 2 ]

Therefore, integers are { 3 , 4 , 5 }

4 0
2 years ago
Question 5 of 27<br> What is the measure of ZC in the parallelogram shown?
nikitadnepr [17]

Answer:

C.35⁰

Step-by-step explanation:

C= 180⁰-145⁰= 35⁰

3 0
3 years ago
Can someone please help me with this logarithm equation!!
enot [183]

Answer:

\frac{629}{2}

Step-by-step explanation:

So, our equation is:

log_5(\frac{2x-4}{5})  = 3

In exponetial form, this looks like:

5^3=\frac{2x-4}{5}

Now lets cube the 5:

125=\frac{2x-4}{5}

Next, we can multiply the denominator on the right side by 5:

625=2x-4

We need to now get x alone by adding 4 to both sides:

629=2x

Finally, we divide by x's coefficent, 2, to get:

x=\frac{629}{2}

Hope this helps! :3

6 0
2 years ago
HELP ASAP. Will give brainliest to correnct answer
matrenka [14]

Answer:

30

Step-by-step explanation:

s w a g

6 0
2 years ago
The sales tax on a used car is​ $174​, and the sales tax rate is 5​%. Find the purchase price ​(the price before taxes are​ adde
rosijanka [135]

Answer:

Step-by-step explanation:

Let x be the purchase price

5% of x = $ 174

\frac{5}{100}*x=174\\\\x=174*\frac{100}{5}\\\\x=174*20\\

Purchase price = $ 3480

8 0
2 years ago
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