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nadezda [96]
3 years ago
12

Which are equivalent expressions?

Mathematics
1 answer:
aivan3 [116]3 years ago
6 0
There are 5 options. Let's figure out which ones are wrong, and why:
<span>y + y + y = y(1 + 1 + 1)
This one is correct, because of the distributive property. Another equivalent is 3y.

2a + 2b = 4ab
This one is incorrect, as you are not multiplying the numbers.

3 · (2 + x) = 6 + 3x
This one is correct, because of the distributive property

2t + 3t = 5t
This is correct, as you can add variables together as long as all the variables are the same

x + 3 = 4x
This is not correct, as 4x is 4 x's.
</span>
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Tell which given value if any is a solution of the equation. <br> T-2.1=0
Serga [27]
T=2.1. ...........................
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3 years ago
F(x) = 36x, find f(3/2)<br><br><br> 36<br><br><br> 72<br><br><br> 216<br><br><br> 64
Nimfa-mama [501]

Answer:

f(5) = 6(5-2) = 18

Step-by-step explanation:

hope this help ~~~~~~~~------~~~~~~~~

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3 years ago
use a numerical method to estimate the value of the limit (if it exists.) Lim e^5t -1 /t as x tends to 0 from both sides​
charle [14.2K]

Hello from MrBillDoesMath!

Answer:

5

Discussion:

Consider the expansion of e^x:

e^x = 1 + x + x^2/2 + x^3/6 +......            =>      replace x by 5t

e^(5t) = 1 + (5t)  + (5t)^2/2 + ....              =>      subtract 1 from both sides

e^(5t) - 1 = (5t) + (5t)^2/2+....                  =>      divide both sides by t

(e^(5t) -1)/ t = 5 + (25/2)  t +....

so as t ends to 0  the quotient tends to    

5 + (25/2)0 + (other terms) *0   ->   5

Thank you,

MrB

8 0
3 years ago
7 thousands divided by what number is equal to 7 hundreds?
Deffense [45]

Answer:

100

Step-by-step explanation:

7000 divided by 100 gets you exactly 700.

3 0
4 years ago
What is the sum of 4.9 × 102 and 6.8 × 103? 1.17 × 103
Tju [1.3M]
4.9 * 102 = 499.8
6.8 * 103 = 700.4
1.71 * 103 = 120.51
7 0
3 years ago
Read 2 more answers
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