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3 years ago

Equivalent fractions of 7x+4x+3-1

1 answer:

7 0

If you have a polynomial with adding two of a number next to a variable, just add the numbers, and put it next to the variable, and you get the same thing. For example, 2x+3x=5x, or 8x+3x=11x. So 7x+4x=11x. Also simplify 3-1 to get 2. All together, you get 11x+2.

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I x+2y=-1 y=-3x - 8 Help please

ss7ja [257]

Answer:

x= -3 y =1

Step-by-step explanation:

4 0

3 years ago

Example on how you will use statistics and probability in real life situations as a student

LUCKY_DIMON [66]

Answer:

weather forecasting, health insurances

Step-by-step explanation:

probability is used by weather forecasters to assess how likely it is that there will be rain, snow, clouds, storms, etc. on a given day in a certain area. health insurance also uses statistics and probability to determine how likely it is that certain people will spend a certain amount on healthcare each year.

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2 years ago

Find -8 divided by -1/2

Leto [7]

Answer:

Step-by-step explanation:

To divide by a fraction, multiply by its reciprocal.

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Multiply

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8 0

3 years ago

What is the equation of the line that passes through the points (-1, 7) and (2, 10) in Standard Form?

Usimov [2.4K]

bearing in mind that standard form for a linear equation means

• all coefficients must be integers, no fractions

• only the constant on the right-hand-side

• all variables on the left-hand-side, sorted

• "x" must not have a negative coefficient

$\bf (\stackrel{x_1}{-1}~,~\stackrel{y_1}{7})\qquad (\stackrel{x_2}{2}~,~\stackrel{y_2}{10}) \\\\\\ slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{10-7}{2-(-1)}\implies \cfrac{3}{2+1}\implies \cfrac{3}{3}\implies 1$

$\bf \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-7=1[x-(-1)]\implies y-7=x+1 \\\\\\ y=x+8\implies \boxed{-x+y=8}\implies \stackrel{\textit{standard form}}{x-y=-8}$

just to point something out, is none of the options, however -x + y = 8, is one, though improper.

3 0

3 years ago

HELPP Find the side length x . Round to the nearest hundredth

polet [3.4K]

Answer:

x = 11.18

Step-by-step explanation:

According to the Pythagorean Theorem; (Leg1)² + (leg2)² = (Hypotenuse)²

10² + x² = 15²

100 + x² = 225

x² = 125

x = $\sqrt{125}$

x = 11.18

Hope this helps!

6 0

3 years ago