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goldfiish [28.3K]
3 years ago
10

Help please !!!! I need help

Mathematics
2 answers:
Stells [14]3 years ago
6 0
6x^2-10x^2= -4x^2 then -5x+8=-13 and then -8 turns positive. So the answer would be -4x^2-13x+8
timofeeve [1]3 years ago
5 0

Answer:

ok

Step-by-step explanation:

bmnvkvv

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A contractor needs to put a carpet in the hallway of a house, the diagram of the houses is below.All of the sides of the figure
Vera_Pavlovna [14]

Break it into squared and rectangles and find the area of those first then add it all together

For your square you would get 16 ft squared

For your rectangle you would get 32 ft squared

For your other rectangle you would get 32 ft squared as well

Then add those all together to get the full answer

80 ft squared

Hope this helps :)

5 0
4 years ago
A hose is leaking water at a rate of 2 oz/h. How many cups of water will leak out after 2 weeks?
Over [174]

Answer:

84 cups of water will leak out after 2 weeks

Step-by-step explanation:

* Lets how many how to change oz to cup

- One cup contains 8 oz

- We can use the ratio to solve this problem

- A hose is leaking water at a rate of 2 oz/h

- We need to find how many cups of water will leak out after 2 weeks

∵ The rate of the water leak out is 2 oz/hr

∵ 1 cup contains 8 oz

∴ 1 oz = \frac{1}{8} cup

∴ 2 oz = 2 × \frac{1}{8} = \frac{2}{8} = \frac{1}{4} cup

∴ The rate of the water leak out = \frac{1}{4} cup/h

∵ 1 day = 24 hours

∵ 1 week = 7 days

∴ 1 week = 7 × 24 = 168 hours

∵ The number of hours in 1 week is 168

∴ The number of hours in 2 weeks = 168 × 2 = 336 hours

⇒    cups    :    hours

⇒      \frac{1}{4}         :   1

⇒     x         :    336

- By using cross multiplication

∴ x = 336 × \frac{1}{4}

∴ x = 84

- x represents the number of cups of water leak out

<em>84 cups of water will leak out after 2 weeks</em>

5 0
4 years ago
PLEASE HELP ME!!!
Irina-Kira [14]

Answer:

size comes after color

3 0
4 years ago
Read 2 more answers
There are 12 paperback mysteries on a shelf. This is 40% of the books on the shelf.
hjlf

Answer:

There are 30 books in the shelf.

Step-by-step explanation:

To solve this problem we can use a rule of three in such a way that 12 paperback mysteries are related to 40% of the books in the shelf in the same proportion that "x" total books are related to 100% of the books in the shelf. So we have:

12 -> 40%

x -> 100%

40*x = 12*100

40*x = 1200

x = 1200/40

x = 30 books

There are 30 books in the shelf.

6 0
4 years ago
Read 2 more answers
18x2 + 50 = 0<br> What are the solutions and how do you get them ?
Artist 52 [7]

Answer:86

Step-by-step explanation:

You would do multiplication first so 18x2 = 36 then you would add 36+50 which equals 86

7 0
4 years ago
Read 2 more answers
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