Solve the inequality 11d - 9 < 15d + 3

Mathematics

1 answer:

Yanka [14]3 years ago

8 0

$11d - 9 < 15d + 3\\
-4d-3$

You might be interested in

Find the slope of this line

asambeis [7]

Answer:

5/2

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Find the area of the polygon.

professor190 [17]

The formula for the area of the triangles is base x hight divided by 2 (bh/2)
The formula for the square is length times width (l x w)

therefore...

bh/2 = (12)(6) / 2 = 36 (this is the area of one triangle)

then you need to times 36 by 4 because you have 4 triangles.
36 x 4 = 144

l x w = 12 x 12 = 144 (this is the area of the square)

last you need to add the area of the triangles (144) and the area of the square (144) because that will give you the total surface area of the shape.

144+144= 288

so your answer is 288cm squared (288cm2)

6 0

3 years ago

Read 2 more answers

Find the equation of the line that is perpendicular to y=-2x-9 and contains the points (8,-4)

avanturin [10]

The slope of the given line is -2, and since perpendicular lines have negative reciprocal slopes, the slope of the line we want to find is 1/2.

Substituting into point-slope form,

$y+4=\frac{1}{2}(x-8)\\\\y+4=\frac{1}{2}x-4\\\\\boxed{y=\frac{1}{2}x-8}$