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pashok25 [27]
3 years ago
14

Work out the area of the trapezium ABDE.

Mathematics
1 answer:
kvv77 [185]3 years ago
6 0

Answer:

(half * base 1 * base 2)/height

base 1 is 6 and base 2 is 9

get the height from similarity

6/9 = 8/CE

therefore CE = 72/6

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F/13 = 6.2 what is the value of f
nekit [7.7K]

Answer:

The value of f is 80.6.

Step-by-step explanation:

We are given the equation and asked to solve for f.

If we are given a fraction with a variable in the numerator, we can multiply both sides of the equation by the denominator to isolate it.

For example, if you look at this equation:

\displaystyle\frac{a}{26}=17.9

We can multiply both sides by 26 to get the a by itself so the equation can be solved.

\displaystyle26\times\frac{a}{26}=17.9\times26\\\\a = 465.4

Therefore, we can apply this same technique to the equation \frac{f}{13}=6.2.

\displaystyle\frac{f}{13}=6.2\\\\13\times\frac{f}{13}=6.2\times13\\\\f = 80.6\ \text{or} \ \frac{403}{5}

Therefore, the value of f is 80.6.

5 0
3 years ago
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What is 2X to the power of 3 divided by -8X to the power of 4?
PIT_PIT [208]

Answer: 8 = 23 (-8)4 = (23)4 = 212

1/(2048x)

Step-by-step explanation:Negative number raised to an even power is positive

For example let's look at (-7)6 , where (-7) , a negative number, is raised to 6 , an even exponent :

(-7)6 can be written as (-7)•(-7)•(-7)•(-7)•(-7)•(-7)

Now, using the rule that says minus times minus is plus, (-7)6 can be written as (49)•(49)•(49) which in turn can be written as (7)•(7)•(7)•(7)•(7)•(7) or 76 which is positive.

We proved that (-7)6 is equal to (7)6 which is a positive number

Using the same arguments as above, replacing (-7) by any negative number, and replacing the exponent 6 by any even exponent, we proved which had to be proved

Dividing exponential expressions :  x3 divided by x4 = x(3 - 4) = x(-1) = 1/x1 = 1/x

Final result :

1/2048x

im in middle school

6 0
3 years ago
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Aneli [31]

Answer:

15 hours, or B

Step-by-step explanation:

6 men - 10

12 men - 5

4 men - 15

<em>Please mark as brainliest</em>

8 0
3 years ago
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A convention center rents a meeting room for $250 per day. There is a $30 one-time fee to make a reservation.
miskamm [114]
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
Among the choices the function equation represents the total cost to rent a meeting room for d day is letter A which is <span>c(d) = 250d + 30</span>
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3 years ago
The mass of a Moon rock is 3.5 kg. What is the mass of the moon rock in grams?
GrogVix [38]
It is 3500 grams
hope i helped
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