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Leto [7]
3 years ago
7

Which is a solution to the equation 3x^2 + 2x − 20 = 2x^2 + 15?

Mathematics
1 answer:
pychu [463]3 years ago
6 0

the answer is b)-7 or it could be 5

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A box of cereal states that there are 78 calories in a three fourths ​cup serving. What is the unit rate for calories per​ cup?
ladessa [460]

Answer:

See below.

Step-by-step explanation:

Unit rate = 78 / 3/4

= 78 * 4/3

= 26*4    (because 78 / 3 = 26)

= 104 calories per cup

There are 2 * 104 = 208 calories in 2 cuos of cereal..

4 0
3 years ago
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Step-by-step explanation:

8 0
3 years ago
M^2-10m+9=(m-9)( ) filling the missing factor to complete the equation
Romashka [77]

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Step-by-step explanation:

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3 years ago
A.) which of these expressions is equivalent to 4 x x
Law Incorporation [45]

Answer:

a) The correct option is C: 4x

b) The correct option is B: 2x

Step-by-step explanation:

a) Usually when we have a real number multiplying a variable, we do not need to write the multiplication symbol.

So instead of writing:

4×x

We can write:

4x

And this will be equivalent.

Then in this case the correct option is C.

b) We know that if we have the multiplication of A by n, this will be equivalent to add A n times.

Then if we have the sum of A, for example, 4 times, we have:

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In this case, we have the expression x + x.

So we are adding x two times, then this can be written as: 2*x, or, as we said earlier, this also can be written as 2x.

Then the correct option is option B.

8 0
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Harrizon [31]

Answer:

X is the input.

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