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4 years ago

Solve the following inequality –1 > –2(x – 4) – 5(4x – 7).

Mathematics

1 answer:

nataly862011 [7]4 years ago

6 0

–1 > –2(x – 4) – 5(4x – 7)

distribute

-1> -2x+8-20x+35

combine like terms

-1> -22x+43

subtract 43 from each side

-44> -22x

divide by -22 (remember to flip the inequality symbol)

2<x

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3 years ago

identify the equation of a line in slope-intercept form that is perpendicular to y = -1/3 x + 2 and passes through (2, 10)

Masteriza [31]

Answer:

Step-by-step explanation:

y = -1/3x + 2

m1 = -1/3

Slope of the perpendicular line = -1/m1 = -1 ÷ $\frac{-1}{3}$ = $-1*\frac{3}{-1} = 3$

Equation of the required line : y = mx +b

y = 3x + b

Plugin x = 2 and y 10 in the above equation

10 = 3*2+ b

10 = 6 +b

10 - 6 = b

b = 4

Equation: y = 3x + 4

8 0

3 years ago

Explain Pe^(rt) How do I use this formula ?

Montano1993 [528]

Answer:

The equation for "continual" growth (or decay) is A = Pert, where "A", is the ending amount, "P" is the beginning amount (principal, in the case of money), "r" is the growth or decay rate (expressed as a decimal), and "t" is the time (in whatever unit was used on the growth/decay rate).

Step-by-step explanation:

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https://youtu.be/dFsBfi9W7sQ

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3 years ago

If xy=2√3 the value of x^4+y^4=?

Andreyy89

Step-by-step explanation:

wrong question or incomplete question

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2 years ago

A coordinate grid is placed over a map and every unit represents 1 mi. The point at (3, 8) represents the location of the baseba

alexira [117]

The distance between 2 points $( x_{1}, y_{1})$ and $( x_{2}, y_{2})$ on the coordinate plane is $\sqrt{(x_{2}-x_{1})^2-(y_{2}-y_{1})^2}$
So the distance between the given points is $\sqrt{(7-3)^2+(-2-8})^2}= \sqrt{4^2+(-10)^2}= \sqrt{16+100}= \sqrt{116}=10.8$
As every unit is 1 mile, so the distance should be 10.8*1=10.8miles.

Hope this helps.

3 0

4 years ago