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nikitadnepr [17]
3 years ago
7

I need the answer ASAP please help

Mathematics
1 answer:
Fantom [35]3 years ago
5 0

Answer:

5 and 50

Step-by-step explanation:

Constant of proportionality=(10-5)/(2-1)=5

Distance is 5*10=50

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If f(x)=6-2x, Find the value for f(-1)
Katarina [22]

Answer:

f(-1)=8

Step-by-step explanation:

Just plug in x=-1 into the function:

f(x)=6-2x

y=6-2(-1)

y=6+2

y=8

So f(-1)=8

7 0
3 years ago
Using a common denominator to order fractions, please help fast...
marshall27 [118]
3/10=15/50 and then 8/25=16/50

So, 3/10<8/25
5 0
3 years ago
Calculate the arithmetic sequence in which a9=17 and the common difference is d=-2.1
jek_recluse [69]

Answer:

S_{31}=71.3


Step-by-step explanation:

The nth term of an arithmetic sequence is given by the formula,

U_n=a_1+(n-1)d


We were given that the 9th term is 17.


\Rightarrow 17=a_1+(9-1)(-2.1)


\Rightarrow 17=a_1+(8)\times(-2.1)


\Rightarrow 17=a_1-\frac{84}{5}


\Rightarrow 17+\frac{84}{5}=a_1


\Rightarrow a_1=\frac{169}{5}


The sum of the first n-terms is given by the formula,


S_n=\frac{n}{2}(2a_1+(n-1)d)


To find S_{31}, we substitute n=31, a_1=\frac{169}{5} and d=-2.1.


\Rightarrow S_{31}=\frac{31}{2}(2(\frac{169}{5}+(31-1)(-2.1))


\Rightarrow S_{31}=\frac{31}{2}(2(\frac{169}{5}+(30)(-2.1))



\Rightarrow S_{31}=\frac{31}{2}(\frac{23}{5})


\Rightarrow S_{31}=\frac{713}{10}


\Rightarrow S_{31}=71.3


The correct answer is D















8 0
3 years ago
Read 2 more answers
5) x-y+6; use x = 6, and y = 1
ankoles [38]

Answer:

-1

Step-by-step explanation:

substitute x for 6 and y for 1

which will be 6-1+6

using BODMAS

6-(1+6)

6-7= -1

6 0
3 years ago
Cqn someone answer this?​
Norma-Jean [14]

Answer:

  • -3

Step-by-step explanation:

  • -11/2+27/4+(-17/4)
  • (-22+27-17)/4
  • (-12)/4
  • -3

7 0
3 years ago
Read 2 more answers
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