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sveta [45]
2 years ago
9

The sum of 1/2 and 1/5 is between 1/2 and 1.

Mathematics
1 answer:
Ivenika [448]2 years ago
8 0

Answer:

7/10

Step-by-step explanation:

You can change 1/2 and 1/5 to have common denominators, which are 5/10 and 2/10.

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Simplify 4x(2x3-7x2+x)
Gelneren [198K]
To simplify this all you need to do is distribute the 4x across each term in the parenthesis
4x(2x^3 - 7x^2 + x) \\ (4x)(2x^3) - (4x)(7x^2) + (4x)(x) \\ 8x^4 - 28x^3 + 4x^2
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3 years ago
Help!! I need to find X of the triangle—
FrozenT [24]

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9

Step-by-step explanation:

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7 0
2 years ago
State what additional information is required in order to know that the triangles are congruent
Sindrei [870]

Answe no no no the first one

Step-by-step explanation: I didn't see the last part it's the first one

8 0
3 years ago
Factor completely 4x4 − 24x3 + 36x2.
ipn [44]

The previous answer from another person got deleted, so I'm here to put it back in my own words.

(Edit: The answer is A)

First of all, you can take 4 out of each, so simplify everything by 4.

4(x^4 - 6x^3 + 9x^2)

Next, you can see that you're able to take out x^2

4x^2(x^2 - 6x + 9)

You can see that both x^2 and 9 are perfect squares, meaning you can crunch them together like this

(x+3)^2 or (x-3)^2

Of course, only one would work, and as fate has it, (x-3)^ produces x^2 - 6x + 9

This would turn the now factored equation into :

4x^2(x-3)^2 or 4x^2(x-3)(x-3), this means the answer is A

6 0
3 years ago
Solve the equation.<br><br>5/7=10/x+2​
skelet666 [1.2K]

Answer:

x=-\frac{70}{9}

Step-by-step explanation:

Isolate the variable by doing operations to both sides of the equation.  

The work is shown below:

\frac{5}{7} =\frac{10}{x} +2\\\\\frac{5}{7} - 2=\frac{10}{x} +2 - 2\\\\-\frac{9}{7} = \frac{10}{x}\\\\ -\frac{9}{7}*x = \frac{10}{x}*x\\\\ -\frac{9}{7}x = 10\\\\ -\frac{9}{7}x * (-\frac{7}{9})= 10 * (-\frac{7}{9}) \\\\x=-\frac{70}{9}

6 0
3 years ago
Read 2 more answers
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