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2 years ago

Solve the compound inequality 7x ≥ –56 and 9x < 54

Mathematics

1 answer:

Reptile [31]2 years ago

5 0

Answer:

For the first inequality- (-8)

Second inequality- 6

Step-by-step explanation:

First inequality- divide both sides by 7.

Second inequality- divide both sides by 9

Hope this helps ^-^

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What is 10,000,000 + 700,000,000 + 2,000,000 + 9,000 + 4 + 400,000 + 10,000 + 70 + 700 in standard form?

Katyanochek1 [597]

please mark this answer as brainlist

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2 years ago

Solve.<br> x^2+9x+2=0<br> thanks!

shtirl [24]

Step one:
ALWAYS set equation equal to zero, which in this case has already been done for us.

Step two:
Figure out what formula you need to use in order to solve in this case I'd use the Quadratic formula.

a=1
b=9
c=2

Quadratic formula:
$x = \frac{ - b + - \sqrt{(b) ^{2} - 4(a)(c)} }{2(a)}$
Then you would plug in the information.
$x = \frac{ - 9+ - \sqrt{(9) {}^{2} - 4(1)(2) } }{2(1)}$
The solve for what is underneath the square root ONLY.
$x = \frac{ - 9 + - \sqrt{73} }{2}$
Since you cannot solve this any further, your final two answers are...
$x = \frac{ - 9 + \sqrt{73} }{2}$
$x = \frac{ - 9 - \sqrt{73} }{2}$

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3 years ago

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Mazyrski [523]

Answer True

Step-by-step explanation:

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3 years ago

Help help and this is a test btw pls yall

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Answer:

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2 years ago

Read 2 more answers

Find the width (w) of the rectangle if the area of the rectangle is x2 + 18x + 45.

poizon [28]

I'm not sure if you're already given the length of the rectangle, but the width is either (x + 3) or (x + 15).

We can find this by factoring x² + 18x + 45, as the area of a rectangle is found by multiplying the length and width together, so if we factor this expression we can find what was multiplied together.

Factoring x² + 18x + 45, we get (x + 3)(x + 15), which then tells us the two sides of the rectangle. Again, I'm not sure if you were already told the length, but if you were then the width is the other side. For example, if you were told the length was (x + 3), then the width would be (x + 15).

I hope this helps!

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3 years ago