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yan [13]
3 years ago
5

Solve the inequality

e=" \frac{x+1}{x-8} \leq 0 " alt=" \frac{x+1}{x-8} \leq 0 " align="absmiddle" class="latex-formula">
Mathematics
1 answer:
Mamont248 [21]3 years ago
5 0
D:x\not=8\\
\frac{x+1}{x-8}\leq0\\
(x+1)(x-8)\leq0\\
x\in\langle-1,8\rangle\\\\
x\in\langle-1,8\rangle \wedge x\not=8\\
\boxed{x\in\langle-1,8)}

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The partial pressure of carbon dioxide in a mixture is 0.31 atm.
juin [17]

Answer:

P_{Co2}= X_{Co2} P_{tot}

Where P_{tot} represent the total pressure and X_{Co2} the fraction of carbon dioxide is 0.46 and we can find the total pressure with this formula:

P_{tot}= \frac{P_{Co2}}{X_{Co2}}

And replacing we got:

P_{tot}= \frac{0.31 atm}{0.46}= 0.674 atm

Step-by-step explanation:

For this case the partial presure of carbon dioxide is given by:

P_{Co2}= X_{Co2} P_{tot}

Where P_{tot} represent the total pressure and x_{Co2} the fraction of carbon dioxide is 0.46 and we can find the total pressure with this formula:

P_{tot}= \frac{P_{Co2}}{X_{Co2}}

And replacing we got:

P_{tot}= \frac{0.31 atm}{0.46}= 0.674 atm

4 0
3 years ago
A football is kicked into the air. Its height above the ground is approximated by the equation h=20t-5<img src="https://tex.z-dn
Anastaziya [24]

Answer:

Zeroes - x=0 and x=4

Football hits the ground at x=4 (4 seconds)

Step-by-step explanation:

1) Plug equation in graphing calculator and graph function.

2) Find zeroes

3) The second zero is when the football hits the ground

4 0
2 years ago
I need help on this algebra
Gnesinka [82]
Since the population increases by 7 percent each year, we can multiply 850 by 1.07 seven times. In other words, we can do 850 • 1.07^7. This is equal to about 1365.
3 0
3 years ago
The sweets bakery makes 156 dozen cookies per day. How many individual are baked each day
miv72 [106K]

Step-by-step explanation:

Im assuming you mean the number of individual cookies which are baked each day, since we all know that a dozen is 12, the answer to this question can be simply derived from multiplication of 156 and 12, so basically you just multiply 12 and 156 and you get your answer,

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7 0
4 years ago
What do u have to do to find the area of a triangle... in other words what is the formula for area of triangles??
allsm [11]
A=\frac{h_{b}b}{2}
Height times the base and then divided by 2.
The 2 is because a parallelogram can be divided into 2 triangles.
7 0
4 years ago
Read 2 more answers
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