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Romashka-Z-Leto [24]
3 years ago
7

( 6x ^2 - x + 3 ) +( - 2x + x^2 - 7 )​

Mathematics
1 answer:
alexandr1967 [171]3 years ago
8 0

Answer:

7x² - 3x - 4

Step-by-step explanation:

<u>Step 1: Write expression</u>

(6x² - x + 3) + (-2x + x² - 7)

<u>Step 2: Combine like terms (x²)</u>

7x² - x + 3 - 2x - 7

<u>Step 3: Combine like terms (x)</u>

7x² - 3x + 3 - 7

<u>Step 4: Combine like terms (constants)</u>

7x² - 3x - 4

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The equation x=-7ysquared describes a parabola. which way does the parabola open?
frosja888 [35]
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vesna_86 [32]

Answer:

m\angle y=35.69^o

Step-by-step explanation:

The picture of the question in the attached figure

we know that

In the right triangle of the figure

sin(y)=\frac{7}{12} ----> by SOH (opposite side divided by the hypotenuse)

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8 0
3 years ago
10 2/6 - 7 5/6 i know its prob easy but i need help
miv72 [106K]

Answer: 2 1/3

Explanation:

10 2/6 - 7 5/6

You can make both a fraction by multiplying the denominator by the whole number, and then adding the numerator to that number, and keeping the denominator the same. So, 10*6 = 60 and 60 + 2 = 62 and you keep the denominator as 6, which would make 62/6

7*6 = 42 and 42 + 5 = 47 so 7 5/6 becomes 47/6

10 2/6 is equivalent to 62/6

7 5/6 is equivalent to 47/6

This just makes it easier to look at.

Now you just work through the equation.

62/6 - 47/6 = 15/6

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3 0
3 years ago
HURRY HURRY HELP MEeeeee
melisa1 [442]

Answer:

dividing by 100

Step-by-step explanation:

6 0
3 years ago
I plugged this into photo math, but apparently I have to pay to find out how to get the answer. can you guys help me out?​
dimulka [17.4K]

Photo math is charging?   We don't need it.  We factor the difference of two squares.

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Answer: 5t-50

8 0
3 years ago
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