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I am Lyosha [343]
2 years ago
8

The element silicon has a molar mass of 28.09 g/mol. Calculate the mass of 0.15 mol of Silicon.

Mathematics
1 answer:
Sav [38]2 years ago
3 0

The answer is 28.09 g. I hope this helped.

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A college is currently accepting students that are both in-state and out-of-state. They plan to accept three times as many in-st
ziro4ka [17]

Answer:

0 < x ≤ 100 and 0 < y ≤ 300

Step-by-step explanation:

THIS IS THE COMPLETE QUESTION BELOW;

college is currently accepting students that are both in-state and out-of-state. They plan to accept three times as many in-state students as out-of-state, and they only have space to accept 100 out-of-state students. Let x = the number of out-of-state students and y = the number in-state students. Write the constraints to represent the incoming students at the college.

0 < x ≤ 100 and 0 < y ≤ 300

x > 0 and y > 0

0 < x ≤ 100 and y > 300

0 < x and y < 100

SOLUTION

they only have space to accept 100 out-of-state students,which means that the Maximum number of out-of-state students that can be accepted is 100

Then x= 100(Maximum number of out-of-state students that can be accepted)

They plan to accept three times as many in-state students as out-of-state which means that

Y = 3x(Maximum number of in-state students)

Then we can deduced that the numbee out-of-state students that can be accepted can lyes between the range of 0 and 100 which means from interval 0 to 100

Which can be written as 0 < x ≤ 100

But we need to know the interval for the Maximum number of in-state students(Y), to do that we need to multiply the equation above by 3 since Y = 3x

0 < x ≤ 100

3× 0 = 0

3× X = X

3× 100= 300

Then 0 < 3x≤ 300

But we know that Y = 3x then substitute into last equation

We have

0 < y ≤ 300

ThenBthe constraints to represent the incoming students at the college is

0 < x ≤ 100 and 0 < y ≤ 300

8 0
3 years ago
If f(x) = -x2 + 6x, what is f(-3)?
Sever21 [200]

Answer:

-12

Step-by-step explanation:

f(-3)= -(-3)2 + 6(-3)

= -(-6) -18

= 6 - 18

= - 12

8 0
3 years ago
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Alja [10]

Answer:

B (-3,-1)

C(-3,-4)

D(2,-4)

E(2,-1)

7 0
3 years ago
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Evaluate the expression.<br><br> 8+10<br> _____<br> 2
Zolol [24]
16 because 10+8=18 and 18-2=16
8 0
3 years ago
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a woman buys a plot of land of area 0.36hectares she pays $8.50 per square meter for the land what is it's total cost​
Elena L [17]

Answer:

$30,600

Step-by-step explanation:

1 hectare = 10,000 m^2

0.36 hectare = 0.36 * 10000 m^2 = 3600 m^2

She pays $8.50 per square meter. Thus, the total cost is:

3600 * 8.50 = \$30,600

Answer: $30,600

3 0
3 years ago
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