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Sliva [168]
3 years ago
8

Find the area of the decagon.

Mathematics
1 answer:
Lera25 [3.4K]3 years ago
5 0

Answer:

A=5/2a^2(5+2√5)

Step-by-step explanation:

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If sin(2x)=cos (x+30°), what is the value of x?
Murljashka [212]

Answer:

x=20

Step-by-step explanation:

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3 years ago
5/8 didved by 1/4 plz help me with this
Vedmedyk [2.9K]

Answer:

The answer is 2.5 or 5/2 as a fraction.

Step-by-step explanation:

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3 years ago
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Help me please ASAP. I really need this
Ksju [112]

Answer:

Step-by-step explanation:

I don't think this can be done without the diagram. You do not know what HD is opposite. I will take a guess that it is opposite TU which makes TU = 220 because both H and D are midpoints and that makes TU twice as large as HD.

If this is incorrect, post the diagram.

6 0
3 years ago
NEED HELP! ASAP! 50 POINTS!
Lerok [7]

Answer:

y=13\text{ miles per gallon}

Step-by-step explanation:

We have the two points: (0, 11) and (3, 50).

And we want to find the rate of change in y relative to x, where x is the gallons and y is the miles.

In simple terms, we want to find the slope between the two points.

So, let's use the slope formula:

m=\frac{y_2-y_1}{x_2-x_1}

Let (0, 11) be (x₁, y₁) and let (3, 50) be (x₂, y₂). Substitute. Let's also put "miles" in the numerator with the Ys and "gallons" in the denominator with the Xs. This yields:

y=\frac{50-11\text{ miles}}{3-0\text{ gallons}}

Subtract and reduce:

y=39\text{ miles}/3\text{ gallons}=13\text{ miles per gallon}

And we're done!

6 0
3 years ago
Mr. Parker has 982 pounds of grain. He feeds 240 pounds ro his pigs and 460 to his cows. How much grain does he have left
denpristay [2]

Starting amount: 982 pounds of grain

Since Mr. Parker fed 240 pounds of grain to his pigs, subtract 240 pounds from 982 pounds of grain.

982 - 240 = 742

After feeding pigs: 742 pounds of grain

Mr. Parker fed another 460 pounds of grain to his cows from his 742 pounds, so subtract 460 pounds from 742 pounds.

742 - 460 = 282

After feeding pigs and cows: 282 pounds of grain

Mr. Parker has 282 pounds of grain left.

3 0
4 years ago
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