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3 years ago

Put the following 3x + y < 8 into linear equation, Slope Intercept formmat

Mathematics

1 answer:

Verdich [7]3 years ago

5 0

We have to get the y alone. So we'll subtract 3x on both sides.

Our new expression is y<-3x+8

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sorry if this doesn't help

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Insert two numbers between 54 and 2 so that the four numbers are in geometric sequence.

Fudgin [204]

Answer:

2,6,18,54

How I got this answer:

Each term after the first is found by multiplying by a fixed, non-zero number called a common ratio.

step by step:

2×3=6

6×3=18

18×3=54

The common ratio is 3.

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3 years ago

What is 6 3/4 divided by 2 5/8?

Katena32 [7]

Answer:

2 4/7!

Step-by-step explanation:

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3 years ago

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What’s the answer<br><br><br> 5n-2=n+18

Sauron [17]

5n-2=n+18

Move n to the other side

Sign changes from +n to -n

5n-n-2= n-n+18

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Sign changes from -2 to +2

4n-2+2= 18+2

4n= 18+2

4n= 20

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4n/4= 20/4

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4 0

3 years ago

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Find the equation of the parabola that passes through

valentinak56 [21]

so we have the points of (0,-7),(7,-14),(-3,-19), let's plug those in the y = ax² + bx + c form, since we have three points, we'll plug each one once, thus a system of three variables, and then we'll solve it by substitution.

$\bf \begin{array}{cccllll} \stackrel{\textit{point (0,-7)}}{-7=a(0)^2+b(0)+c}& \stackrel{point (7,-14)}{-14=a(7)^2+b(7)+c}& \stackrel{point (-3,-19)}{-19=a(-3)^2+b(-3)+c}\\\\ -7=c&-14=49a+7b+c&-19=9a-3b+c \end{array}$

well, from the 1st equation, we know what "c" is already, so let's just plug that in the 2nd equation and solve for "b".

$\bf -14=49a+7b-7\implies -7=49a+7b\implies -7-49a=7b \\\\\\ \cfrac{-7-49a}{7}=b\implies \cfrac{-7}{7}-\cfrac{49a}{7}=b\implies -1-7a=b$

well, now let's plug that "b" into our 3rd equation and solve for "a".

$\bf -19=9a-3b-7\implies -12=9a-3b\implies -12=9a-3(-1-7a) \\\\\\ -12=9a+3+21a\implies -15=9a+21a\implies -15=30a \\\\\\ -\cfrac{15}{30}=a\implies \blacktriangleright -\cfrac{1}{2}=a \blacktriangleleft \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{and since we know that}}{-1-7a=b}\implies -1-7\left( -\cfrac{1}{2} \right)=b\implies -1+\cfrac{7}{2}=b\implies \blacktriangleright \cfrac{5}{2}=b \blacktriangleleft \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill y=-\cfrac{1}{2}x^2+\cfrac{5}{2}x-7~\hfill$

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3 years ago

Help me pleaseeeeeee

ZanzabumX [31]

Answer:

Step-by-step explanation:

8 0

2 years ago

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Put the following 3x + y < 8 into linear equation, Slope Intercept formmat​

Put the following 3x + y < 8 into linear equation, Slope Intercept formmat