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3 years ago

The area of a trapezium 9cm 6cm 15cm

Mathematics

1 answer:

777dan777 [17]3 years ago

6 0

Answer:

can you please specify which is the base , height and the boundary...

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PLEASE HELP ASAP WILL MARK BRAINLIEST

nikdorinn [45]

Answer: 314 mm

Step-by-step explanation:

Area of a circle is π*r^2

r is radius and π is 3.14

here the radius is 10

3.14 * 10^2 = 3.14 * 100 = 314

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3 years ago

30% of what number is 13.8?

Feliz [49]

The answer is 4.14 hoped that helped

4 0

3 years ago

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Write the function of this graph

Colt1911 [192]

Answer:

f(x) = -3/7x - 6

Step-by-step explanation:

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3 years ago

PLEASE HELP!!! THIS IS MY LAST QUESTION!! ASAP!!

aleksandr82 [10.1K]

Answer:

In order of what is shown on the pic:

- Trinomial

- Monomial

- Trinomial

- Binomial

- Polynomial with four terms

Step-by-step explanation:

Again, in the same order as above:

1. The first has three terms, making it a trinomial

2. 7x^2 - 7x^2 +4x

The 7x^2 cancels out and we are left with only 4x

Since there is one value, it is a monomial

3. This one has three terms, making it a trinomial

4. This one has two terms, making it a binomial

5. The last one has four terms, making it a polynomial with four terms.

8 0

3 years ago

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A rescue helicopter flew from its home base for 35 kilometers on a course of 330 degrees to pick up an accident victim. It then

artcher [175]

I've drawn a triangle to represent the journey (see attached.

The angle from Home to Victim to Hospital is:

a = $90 - (360 - 330) = 90- 30 = 60^o$

Using the cos rule, we can solve for the length x:

$a^2 = b^2 +c^2 - 2bccosA
\\x^2 = 35^2+25^2-2(35)(25)cos60
\\x^2 = 1850 - 875
\\x^2 = 975
\\x = \sqrt{975}
\\x = 31.2249...$

Using the cos rule, we can solve for angle b:

$a^2 = b^2 +c^2 - 2bccosA
\\35^2 = 31.22...^2+25^2-2(31.22...)(25)cosb
\\1225 = 975 + 625 - 1561.249...cosb
\\-375 = -1561.249...cosb
\\b = cos^{-1}( \frac{-375}{-1561.249...}) 
\\b = 76.1...$

So the bearing the helicopter has to travel is:

270 - 76.1 = <u>193.9 degrees (1 dp)</u>

And the distance it travels is <u>31.2 km (1 dp)</u>

5 0

3 years ago