3 years ago

Solve the inequality. graph the solution. 8a-15>73

Mathematics

1 answer:

Shtirlitz [24]3 years ago

8 0

A=11. to graph it plot an open circle on 11 and go right

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IgorLugansk [536]

Answer:

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Step-by-step explanation:

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3 years ago

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What is the range of the function f(x) = –2|x + 1|

Oduvanchick [21]

Answer:

$f\left(x\right)\le \:0$

Step-by-step explanation:

$\mathrm{The\:range\:of\:an\:absolute\:function\:of\:the\:form}\:-c|ax+b|+k\:\mathrm{is}\:\:f\left(x\right)\le \:k$

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3 years ago

Rapunzal travels 27 miles per hour. How long does it take her to travel 3 miles. Nearest tenth

shtirl [24]

Answer:

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2 years ago

The table below shows the value of y for different values of x:

Sav [38]

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3 years ago

The image of a parabolic lens is projected onto a graph. The image crosses the x-axis at –2 and 3. The point (–1, 2) is also on

Ierofanga [76]

Answer:

$y =-\frac{1}{2}(x +2)(x - 3)$

Step-by-step explanation:

Given

$x_1 = -2$

$x_2 = 3$

$(x,y) = (-1,2)$ --- a point on the parabola

Required

The equation

First, calculate the equation from the zeros

$y =k(x - x_1)(x - x_2)$

Substitute $x_1 = -2$ and $x_2 = 3$

$y =k(x - -2)(x - 3)$

$y =k(x +2)(x - 3)$

To solve for k, we substitute $(x,y) = (-1,2)$

$2 = k(-1+2)(-1-3)$

$2 = k(1)(-4)$

$2 = -4k$

Divide by -4

$k=\frac{2}{-4}$

$k=-\frac{1}{2}$

So, the equation is:

$y =k(x +2)(x - 3)$

$y =-\frac{1}{2}(x +2)(x - 3)$

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3 years ago