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3 years ago

Daca AB = 18cm DB = 12cm DE = 4cm si AE = 9cm, clalculati AD, BC, AC si EC?

Mathematics

1 answer:

zheka24 [161]3 years ago

5 0

I got 43 as my answer hope this helps

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0.1x + 9 ≤ 45 what is x?

soldi70 [24.7K]

Hi Robles928518,

0,1x + 9 ≤ 45
0,1x ≤ 45 - 9
0,1x ≤ 36
x ≤ 360

x ∈ ] - ∞ ; 360 ]

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2 years ago

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Charra [1.4K]

Answer:

an = a+4n-4

Step-by-step explanation:

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3 years ago

Hi!! Please help me with this question. I got an answer of 63.25 but it was incorrect and need to redo it. Please also explain h

matrenka [14]

Answer:

x ≈ 63.27

Step-by-step explanation:

Using the tangent ratio in the right triangle

tan49° = $\frac{opposite}{adjacent}$ = $\frac{EF}{DE}$ = $\frac{x}{55}$ ( multiply both sides by 55 )

55 × tan49° = x , then

x ≈ 63.27 ( to the nearest hundredth )

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2 years ago

Please help me with this

lawyer [7]

Answer:

14/18 =0.7778

Step-by-step explanation:

14/18 =0.7777.........=0.7778 rounded to the nearest thousandth

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2 years ago

A dealer sold 200 tennis racquets. Some were sold for $33 each, and the rest were sold on sale for $18. The total receipts form

Mumz [18]

120 tennis racquets were sold for $ 18 each

Solution:

Let x = number that sell for $18 each

Then, 200 - x = number that sell for $33 each

The total receipts form these sales were 4800 dollars

Thus we frame a equation as:

number that sell for $18 each x 18 + number that sell for $33 each x 33 = 4800

$x \times 18 + (200-x) \times 33 = 4800\\\\Solve\ the\ above\ equation\ for\ x\\\\18x + 6600 - 33x = 4800\\\\Move\ the\ variables\ to\ one\ side\\\\18x-33x = 4800-6600\\\\-15x = -1800\\\\Divide\ both\ sides\ of\ equation\ by\ -15\\\\x = 120$

Thus 120 tennis racquets were sold for $ 18 each

6 0

3 years ago