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yanalaym [24]
3 years ago
11

E

Mathematics
1 answer:
Allushta [10]3 years ago
8 0

Answer:

Step-by-step explanation:

We can use Hypotenuse Theorem for this:

For triangle ABC,

AC²=CB²+BA²

9²=CB²+3²

Switch the sides

-CB²=3² -9²

-CB²= 9-81

-CB²= -72

the signs cut each other

CB²=72

the square changes sides

CB=√72

CB= 8.49 cm

Now triangle CBD

We have the length of CB but not the other two whereas we have the angle

It will be sin

As we know sin= O/H

Here O is CB whereas H is CD

Put the values

sin 50= 8.49/H

H= 8.49 ÷sin 50

Calculate

H=11.1 cm

As we know H is CD so CD is 11.1 cm

Hope it helps

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Find the change between the first two sets:

12-9 = 3

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3.6/3 = 1.2

Now find the change between the last two sets:

12 - -3 = 15

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10.8/15 = 0.72

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3 years ago
Evaluate 12∣∣−x+3∣∣−5 when x = 11.
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Answer:

91

Step-by-step explanation:

12∣∣−x+3∣∣−5

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5 0
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The cost of the sheets is less for the second example, the second example is the better deal.

Consider the first example:

Here, A brand of sheets is on sale for “Buy one get one at 50% off”. If each sheet costs $18.00.

So, the value of the first sheet will be $18,

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=  $12×6

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Since the cost is less for the second example. So, the second example is the better deal.

4 0
2 years ago
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