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KATRIN_1 [288]
3 years ago
12

Write an equation of a line going passing through the point (4,

Mathematics
1 answer:
LenKa [72]3 years ago
3 0

Answer:

y= -1/2x+3

Step-by-step explanation:

as it is parallel the slope/gradient is the same: -1/2x

then substitute the values 4 and 1 in the equation of a straight line y= mx +c

therefore it becomes: 1= -1/2×4+c

and then u will get c

then at the end remember to write the whole equation: y= -1/2x+3

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A section of a biking trail begins at the coordinates
Alexandra [31]

Answer:

9 over -15

Step-by-step explanation:

you subtract the coordinates from each oth

7 0
3 years ago
How do I describe the real zeroes of this function using Descartes's Rule of Signs?
Serhud [2]
The number of positive roots is the number of changes of signs there are, then decrease by 2 each time and stop when you get to 1 or 0

negative roots, sub every x with -x and reevaluate, count change of signs
decrease by 2 each time and stop when you get to 1 or 0

y=+2x⁵-x⁴-2x³+4x²+x-2
+,-,-,+,+,-
 1    2  3

3 or 1 positive roots

replace x with -x ( baically flip all signs of odd powerd numbers)

y=-2x⁵-x⁴+2x³+4x²-x-2
   -,-,+,+,-,-
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2 or 0 negative roots



3 or 1 positive roots
2 or 0 negative roots
2nd option is answer

4 0
4 years ago
What is the largest of three consecutive integers whose sum is 39?
Neporo4naja [7]

Answer:

Step-by-step explanation:

X }

X+1 }

X+2 }

All of it has to equal 39

Add all the x’a

3x+3=39

-3 -3

3x=36

3. 3

X=12

X+1 =13

X+2 = 14

=14 is the largest

3 0
3 years ago
Perform the following calculations without rewriting the numbers in decimal form.
RSB [31]

Answer:

Answer will be 140\times 10^{13}

Step-by-step explanation:

We have to perform the calculation (1.42\times 10^{15}-2\times 10^{13}) without changing into decimal

1.42\times 10^{15} can be written as 142\times 10^{13}

So 1.42\times 10^{15}-2\times 10^{13}=(142\times 10^{13}-2\times 10^{13})

Now taking 10^{13} common

10^{13}(142-23)=140\times 10^{13}

6 0
3 years ago
-2(x+2)=-1 ???????????????????
Salsk061 [2.6K]

Answer:

X=-3/2

Step-by-step explanation:

-2(x+2)=-1

Distribute

-2*x and -2*2

-2x-4=-1

Solve for x

-2x-4=-1

    +4   +4

-2x=3

/-2  /-2

x=-3/2

3 0
4 years ago
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