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amid [387]
3 years ago
5

Choose the linear inequality that describes the graph. The gray area represents the shaded region

Mathematics
2 answers:
zepelin [54]3 years ago
6 0
(1,0)(0,-2)
slope = (-2 - 0) / (0 - 1) = -2/-1 = 2

y int (where the line crosses the y axis) = (0,-2)

equation is : y = 2x - 2.....line is solid, so there is an equal sign in the problem....shading is above the line, so it is greater then

ur inequality is : y > = 2x - 2


seraphim [82]3 years ago
6 0

Answer:

The required inequality that shown in the given graph is y\geq 2x-2.

Step-by-step explanation:

Consider the provided graph.

The <em>y</em>-intercept of the line is, (0,-2)

The <em>x</em>-intercept of the line is, (1,0)

To find the equation of line use the formula:

(y-y_1)=\frac{y_2-y_1}{x_2-x_1}(x-x_1)

Substitute (x_1,y_1)=(0,-2)\text{and}(x_2,y_2)=(1,0)

y-(-2)=\frac{0-(-2)}{1-0}(x-0)

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

y+2=2x

y=2x-2

Therefore the equation of line is y=2x-2.

The graph is solid line and shaded region is above the line. So, use the inequality sign "≥".

Thus, the required inequality that shown in the given graph is y\geq 2x-2.

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To prove part of the triangle midsegment theorem using the diagram, which statement must be shown
Alenkinab [10]

Answer:

The length of GH is half the length of KL.

Full question...

To prove part of the triangle midsegment theorem using the diagram, which statement must be shown?

The length of JK equals the length of JL.

The length of GH is half the length of KL.

The slope of JK equals the slope of JL.

The slope of GH is half the slope of KL.

So once again the answer is the second one: The length of GH is half the length of KL.

8 0
3 years ago
Read 2 more answers
Find last year's salary if after a 5% pay raise , this year's salary is $39,375
ohaa [14]
Let x= last years salary. And 1.05 represents pay raise which 100% plus the 5%. 1.05(x)= 39375 you solve for x which gives you 37500
3 0
3 years ago
8x2 − 5 + 7x4 − 9x − x5
Veseljchak [2.6K]

Answer:

=-\left(x-1\right)\left(x^4-6x^3-6x^2-14x-5\right)

Step-by-step explanation:

Factor out comon Term -1

=-\left(x^5-7x^4-8x^2+9x+5\right)

Factor x^5-7x^4-8x^2+9x+5:\quad \left(x-1\right)\left(x^4-6x^3-6x^2-14x-5\right)

x^5-7x^4-8x^2+9x+5

Use the rational root theorem

a_0=5,\:\quad a_n=1

The dividers of a_{0}: 1, 5, The dividers of a_n: 1

Therefore, check the following rational numbers: ±\frac{1,\:5}{1}

\frac{1}{1} is a root of the expression, so factor out x-1

=\left(x-1\right)\frac{x^5-7x^4-8x^2+9x+5}{x-1}

\frac{x^5-7x^4-8x^2+9x+5}{x-1}=x^4-6x^3-6x^2-14x-5

=x^4-6x^3-6x^2-14x-5

=-\left(x-1\right)\left(x^4-6x^3-6x^2-14x-5\right)

8 0
3 years ago
If the domain of the function f(x) = x - 5 is {1, 3, 4, 6} what is the range? F
Margarita [4]

Answer:

-4, -2, -1, 1

Step-by-step explanation:

If the domain is given we use the equation to determine the range but usually the range would be everything in this equation.

7 0
3 years ago
Calculate the area of the regular pentagon below: A regular pentagon with side length of 11.8 inches and dotted line from center
vlada-n [284]

Answer:

Area of regular pentagon is 238.95 square inches.

Step-by-step explanation:

Given a regular pentagon with side length of 11.8 inches and dotted line from center to middle of side of 8.1 inches.

we know a regular polygon divides into 5 congruent triangles.

Side of pentagon i.e base of one triangle is 11.8 inches.

Also, distance from center to middle of side which is height of triangle is 8.1 inches.

Area of 1 triangle= \frac{1}{2}\times base\times height

                           =  \frac{1}{2}\times 11.8\times 8.1

                           = 47.79 sq inches.

Area of regular pentagon=area of 5 congruent triangles= 5\times 47.79=238.95 sq inches.

5 0
3 years ago
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