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Sliva [168]
3 years ago
6

Factor: -49x^2+ 7y^2 + 133

Mathematics
1 answer:
prisoha [69]3 years ago
5 0

Answer:

-7 (7x^2-y^2-19)

Step-by-step explanation:

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A school holds classes from 8:00 a.m -2:00 p.m. For what percent of a 24- hour day does this school hold classes?
kati45 [8]
8:00 a.m all the way until 2:00 p.m.

8:00 a.m. to 12:00 p.m is 4 hours.
12:00 p.m. to 2:00 p.m is 2 hours

8:00 a.m. to 2:00 p.m. is 6 hours.

6 hours out of a 24 hour day.

\frac{6}{24} =\frac{x}{100}\\\\\frac{1}{4} =\frac{x}{100}\\\\\sf{Cross~multiplying}\\\\100 = 4x\\\\\sf{Divide~4~on~both~sides

\boxed{\bf{x =25}}

The school holds classes for 25% of the 24-hour day.
3 0
3 years ago
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Solve for x- <br> 6x^2 + 36x + 54 = 0
lions [1.4K]

Answer:

-3

Step-by-step explanation:

6x^2+36x+54=0

First, you can factor out a 6:

6(x^2+6x+9)=0

Next, you can factor the quadratic:

6(x+3)^2=0

Since the only value of x that could set this equation equal to 0 is -3, that is the answer. Hope this helps!

5 0
3 years ago
Laila made 12 muffins. Shannon made 10 muffins how many more did Laila make?
sleet_krkn [62]

Answer:

2 more muffins

Step-by-step explanation:

<em>Since, </em>

<u><em>Given that:</em></u>

<em>Laila made 12 Muffins</em>

<em>Shannon made 10 Muffins</em>

<u><em>Question to Answer:</em></u><em>
How many more did Laila make?</em>

<u><em>Solve:</em></u>

<em>Since it asking how many more laila made that means we have to subtract to find how many more laila has.</em>

<em>As given, we know that Laila made 12 Muffins and Shannon made 10 Muffins then:</em>

<em>Laila Muffins - Shannon Muffins</em>

<em>Which also means:</em>

<em>12 - 10</em>

<em>Which,</em>

<em>12 - 10 = 2</em>

<em>Hence, Laila makes 2 more Muffins than Shannon</em>

<em />

<u><em>Kavinsky</em></u>

7 0
2 years ago
Read 2 more answers
What is the decimal of 1/2
vodomira [7]

Answer:

.5

Step-by-step explanation:

1 half of any thing is 50 percent and 50 percent is written as a decimal when you move the decimal point twice to the left giving you .5

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3 years ago
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What is the solution for the equation 5/3b^3-2b^2-5=2/b^3-2
PilotLPTM [1.2K]
I looked it up and it said it was c 
7 0
3 years ago
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