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3 years ago

Which equation represents a line which is parallel to the line 8x + 7y = -28?

Mathematics

1 answer:

Paul [167]3 years ago

5 0

Answer:

-8/7 slope

Step-by-step explanation:

so first u need to figure out the y=mx+b of ur equation 8x+7y=-28 to make it easier on urself yk. so first you get the y by it self and change it to become 7y= -8x-28 you do this by dragging the 8x to the other side which makes it negative since ur switching sides. now u divide each number by 7 since the 7y is by itself. doing this u get y= -8/7x-4. basically parallel = same slope so you will keep ur same slope or m as -8/7 and now all u need to find is b but in ur question u didnt give coordinates so irdk but ur answer has to have the -8/7 slope

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Anna is 9 years old, and this year she received $10 from her aunt on her birthday. Her aunt has told

son4ous [18]

Answer:

$M(y)=10y+10$

Step-by-step explanation:

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3 years ago

A company is selecting 6 people to be on a committee. There are 29 employees eligible to be on the committee. What is the total

postnew [5]

Answer: 342014400

Step-by-step explanation:

Given : A company is selecting 6 people to be on a committee.

Total employees eligible to be on the committee=29

Since each employee will have a different position on the committee, thus order matters here , so we use Permutations.

Number of permutation of n thing taking m things at a time is given by :-

$^nP_m=\dfrac{n!}{(n-m)!}$

Then, the number of permutation of 29 employees taking 6 at a time will be :-

$^{29}P_6=\dfrac{29!}{(29-6)!}\\\\=\dfrac{29\times28\times27\times26\times25\times24\times23!}{23!}\\\\=342014400$

Hence, the total number of ways the committee may be formed = 342014400

3 0

3 years ago

A molecule of butane contains 10 atoms of hydrogen to every 4 atoms of hydrogen to every 4 atoms of carbon. Could a compound con

Naily [24]

Answer:

Yes this compound could be shown to be butane, specifically, it can be shown to be 9 molecules of butane. Check Explanation for more.

Step-by-step explanation:

Butane contains 10 hydrogen atoms for every 4 carbon atoms. It's molecular formula is C₄H₁₀

The hydrocarbon compound presented has 36 carbon atoms and 90 hyfrogen atoms

If the ratio of each of these atoms present is also in the ratio 4:10 like C:H, then, it can be inferred that the compound is indeed Butane

C | H

36 | 90

dividing through by 9, we have

C | H

4 | 10

which is the exact ratio of Carbon to Hydrogen in butane.

Hence, the unknown compound is most likely 9 molecules of butane

9C₄H₁₀ = 36 carbon atoms and 90 hydrogen atoms.

Hope this Helps!!!

8 0

3 years ago

Sin(x) cos(x)cot(x)=cscx?

stealth61 [152]

$sin(x)cos(x)cot(x) = csc(x)$
$sin(x)cos(x)[\frac{cos(x)}{sin(x)}] = \frac{1}{sin(x)}$
$cos^{2}(x) = \frac{1}{sin(x)}$
$sin(x)cos^{2}(x) = 1$

It is undefined.

6 0

3 years ago

Solve for f. f/-3 + 2 =4

Reil [10]

F/-3+2=4 subtract 2 from both sides
f/-3=2 multiply by -3
f=-6 your answer is f=-6

4 0

3 years ago