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babymother [125]
3 years ago
7

What is -2-(9-10n) please help it could change my life. It would be very nice

Mathematics
1 answer:
alex41 [277]3 years ago
6 0
Distribution property
a(b+c) = ab*ac

now, why does this matter

cause
-(9-10n) is equivalent to -1*(9-10n)

applying distribution property
-1*(9-10n) = -1*9 +-1-10n= -9 +10n
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Express the edge length of a cube as a function of the cube's diagonal length d. Then express the surface area & volume of t
Lorico [155]
D = sqrt(3s^2) where s is the length of the side. Solving for s, 

<span>3s^2 = d^2 iff </span>
<span>s^2 = d^2 / 3 iff </span>
<span>s = sqrt(d^2 / 3) </span>
<span>= d / sqrt(3) or d sqrt(3) / 3 </span>

<span>Surface area of the cube = 6 s^2. Thus, </span>
<span>A = 6 (d / sqrt(3))^2 </span>
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<span>= 2d^2 </span>

<span>Volume = s^3. Thus, </span>
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<span>= d^3 sqrt(3) / 9</span>
8 0
3 years ago
Read 2 more answers
An employee worked 36 hours last week. This week, she worked 48 hours. Find the percent increase. Round to the nearest percent.
Ratling [72]

Answer:

To the nearest percentage, percent increase is 33%

Step-by-step explanation:

Mathematically;

Percentage increase = (new - old)/old * 100%

new = 48 hours

old = 36 hours

% increase = (48-36)/36 * 100%

12/36 * 100%

1/3 * 100%

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6 0
2 years ago
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Janet has three times as many dimes as nickels and twice as many quarters as nickels. If she has $5.10 in all, how many nickels,
Mama L [17]
If number of nickel = n
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Total Amount = <span>5n + 30n + 50n = 510

In short, Your Answer would be Option C

Hope this helps!</span>
6 0
3 years ago
What is the answer i need help 6(3+5)4
fomenos

Answer:

192

Step-by-step explanation:

6(3+5)4

3+5=8

6(8)4

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48x4=192

4 0
2 years ago
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Presbycusis is the gradual hearing loss that occurs as a person ages. An estimated one-quarter of Americans between the ages of
svetlana [45]

Answer:

The answer is the "Null hypothesis and Alternative hypothesis".

Step-by-step explanation:

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The alternative presumption will be that the hypothesis besides making predictions is opposite to the void assumption. Its posts are generally taken as a result of a meaningful effect.

Difference:

The null hypothesis is indeed a gross generalization, which specifies there is no relation between different phenomenons under evaluation. There is no association between the two groups. An alternate solution hypothesis is a statement, that defines there is a relation between different chosen variables in this study.

3 0
3 years ago
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