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exis [7]
3 years ago
12

Solve. -2/5x-9<9/10 Show your work. Will mark brainliest! (the slashes mean fractions)

Mathematics
1 answer:
lara [203]3 years ago
4 0

Answer:

x > -99/4

Step-by-step explanation:

(−2/5)(x)−9<9/10

Simplify both sides of the inequality.

−2/5x−9<9/10

Add 9 to both sides.

−2/5x−9+9<9/10+9

−2/5x<99/10

Multiply both sides by 5/(-2).

(5/−2)*(−2/5x)<(5/−2)*(99/10)

x>−99/4

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I need help with this question please
ludmilkaskok [199]

Answer:

  62

Step-by-step explanation:

The enclosing rectangle is 24 units long and 12 units high. Its area is ...

  (24 units)(12 units) = 288 square units

The white circles obviously cover more than half the area, so the only viable answer choice is 62.

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If you want to go to the trouble to actually figure it out, you can find the area of each circle using the area formula ...

  A = πr² = (3.14)(6²) = 113.04

Then both circles have an area of 2×113.04 = 226.08, and the shaded area is the difference between that and the rectangle area:

  shaded area = 288 -226.08 = 61.92 ≈ 62

5 0
3 years ago
What is the area of this figure?
s2008m [1.1K]

Step-by-step explanation:

it clearly consists of 2 rectangles and 1 triangle (as you tried correctly to point out by drawing the separating lines).

we only need to calculate all 3 areas and add them up for the total.

the area of a rectangle is

length × width

so, in our 2 cases we have

6 × 2 = 12 km²

5 × (3 + 2 + 3) = 5×8 = 40 km²

the area of a triangle is

baseline × height / 2

in case of a right-angled triangle the 2 sides enclosing the 90° angle can be used as baseline and height.

so, in our case

6 × (5 + 2 + (3 + 2 + 3 - 2)) / 2 = 6×(7 + 6)/2 = 3×13 = 39 km²

in total, the whole area is

12 + 40 + 39 = 91 km²

4 0
2 years ago
Chang knows one side of a triangle is 13 cm. Which set of two sides is possible for the lengths of the other two sides of this t
Lelechka [254]
8cm and 8cm.

Espero que esta respuesta te ayude.
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Answer:

Step-by-step explanation:

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3 years ago
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Answer:

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Step-by-step explanation:

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