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Leya [2.2K]
3 years ago
13

What is this? Please answer if u know what you are doing thank you

Mathematics
2 answers:
fgiga [73]3 years ago
6 0

Answer:

y= 8

Step-by-step explanation:

y= k/x

-8= k/4

k= -8×4= -32

y= k/x

y= -32/-4

y= 8

hope it helps!

gogolik [260]3 years ago
3 0

Answer:

the answer is 8 if y= -8 when x is 4 amd

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Reflex angle of 95 degrees
Helen [10]

Step-by-step explanation:

a a reflex angle is more than 180° but less than 360° so in this case the reference angle of 95 degrees we are going to take 360° - 95 degrees to get255°

8 0
3 years ago
What property is being shown? <br><br> 5 + (6 + 3) = (5 + 6) + 3
telo118 [61]

Hello I believe that the property is comuutative thank you


5 0
3 years ago
Read 2 more answers
A collection of nickels, dimes and quarters totals $6.00.  If there are 52 coins altogether and twice as many dimes as nickels,
VashaNatasha [74]
D=2n:  there are twice as many dimes as nickels.

n+d+q=52:  a total of 52 coins, using d from above in this gives you:

n+2n+q=52  combine like terms on left side

3n+q=52  subtract 3n from both sides

q=52-3n

Then you are told that the coins have a total value of $6 which is equal to 600 cents.  So we can say:

25q+10d+5n=600  divide all terms by 5

5q+2d+n=120, and from earlier we saw q=52-3n and d=2n so you have:

5(52-3n)+2(2n)+n=120  expanding...

260-15n+4n+n=120  combining like terms

260-10n=120  subtract 260 from both sides

-10n=-140  divide both sides by -10

n=14, since q=52-3n and d=2n

q=(52-3(14))=52-42=10 

d=2(14)=28

So there are 10 quarters, 28 dimes, and 14 nickels or as your choices put it:

q=10, d=28, n=14  (the correct answer is d.)
7 0
4 years ago
A positive integer is twice another.the sum of the reciprocal of the two positive integer is 3/14. Find the integers
icang [17]

Answer:

\huge\boxed{14\ \text{and}\ 7}

Step-by-step explanation:

n,\ m-\text{positive integer}\\\\n=2m-\text{a positive integer is twice another}\\\\\dfrac{1}{n}+\dfrac{1}{m}=\dfrac{3}{14}-\text{the sum of the reciprocal of the two positive integer is }\ \dfrac{3}{14}\\\\\text{We have the system of equations:}\\\\\left\{\begin{array}{ccc}n=2m&(1)\\\dfrac{1}{n}+\dfrac{1}{m}=\dfrac{3}{14}&(2)\end{array}\right

\text{Substitute (1) to (2):}\\\\\dfrac{1}{2m}+\dfrac{1}{m}=\dfrac{3}{14}\\\\\dfrac{1}{2m}+\dfrac{1\cdot2}{m\cdot2}=\dfrac{3}{14}\\\\\dfrac{1}{2m}+\dfrac{2}{2m}=\dfrac{3}{14}\\\\\dfrac{1+2}{2m}=\dfrac{3}{14}\\\\\dfrac{3}{2m}=\dfrac{3}{14}\Rightarrow2m=14\qquad\text{divide both sides by 2}\\\\\dfrac{2m}{2}=\dfrac{14}{2}\\\\\boxed{m=7}

\text{Substitute it to (1):}\\\\n=2\cdot7\\\\\boxed{n=14}

8 0
3 years ago
A force of 128 lb is required to hold a spring stretched 2 ft beyond its natural length. How much work W is done in stretching i
Agata [3.3K]

We have that the  workdone in stretching natural length to is mathematically given as

W=9/2lbft

<h3>Workdone in stretching natural length</h3>

Question Parameters:

  • A force of 128 lb is required to hold a spring stretched 2 ft <em>beyond </em>its natural length.
  • Stretching it from its natural length to 9 inches beyond its natural length

Generally the Hookes equation for the Force   is mathematically given as

F=Kx

Where

3.2lb=2ft*k

Thereofore

k=16

Force becomes

f=kx

f=16x

Hence

W=8[x^2]^{3/4}_{0}

W=9/2lbft

For more information on Length visit

brainly.com/question/2096451

6 0
2 years ago
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