2 years ago

What are the constants in the expression 7r - 3 + 2s + 5

Mathematics

1 answer:

slega [8]2 years ago

6 0

B. -3 and 5

constants are the numbers without variables (the letters) and coefficients are the numbers with variables

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i think of a number. if i divide the sum of 5 and the number by 3, the result is 2 less than one quarter of the number. find the

Marrrta [24]

Answer:

x = 4.75

Step-by-step explanation:

<u>(5 +X</u><u> )/3</u> = 2 - <u> X/4</u>

<h3> <u>(5 +X</u><u> )/3</u> = 8 - X </h3><h3>5+ X = 3 (8 - X) </h3><h3> 5+ X = 24 - 3X transposing terms</h3><h3>X+ 3X= 24 -5</h3><h3> 4X = 19</h3><h3> X = 19/4 </h3><h3>X = 4.75</h3>

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2 years ago

Can synthetic division always be used instead of polynomial long division?

Inessa05 [86]

Yes, there is an expanded algorithm for synthetic division involving nonlinear and non-monic divisors (check out the w.i.k.i.pedia page on "synthetic division", under the "Expanded sythetic division" section).

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2 years ago

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Write an equation of the line that passes through the points (-2,-2) and (0,5)

marshall27 [118]

$\bf \begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
&&(~ -2 &,& -2~) 
&&(~ 0 &,& 5~)
\end{array}
\\\\\\
% slope = m
slope = m\implies 
\cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{5-(-2)}{0-(-2)}\implies \cfrac{5+2}{0+2}\implies \cfrac{7}{2}
\\\\\\
\stackrel{\textit{point-slope form}}{y- y_1= m(x- x_1)}\implies y-(-2)=\cfrac{7}{2}[x-(-2)]
\\\\\\
y+2=\cfrac{7}{2}(x+2)\implies y+2=\cfrac{7}{2}x+7\implies y=\cfrac{7}{2}x+5$

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2 years ago

Brian has reduced his cholesterol level by 18% after his last check up. If his original level was 220, what is his approximate

Drupady [299]

Answer:

Step-by-step explanation:

multiply 18% and 220 which is 39.6

subtract 39.6 from 220 which is 180.4

simplify

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2 years ago

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Write the equation of the line that passes through the points (3,-8) and (-8,1).

Gennadij [26K]

Answer:

-9/11

Step-by-step explanation:

-8-1/3-(-8)

-9/11

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2 years ago