1 year ago

Find EF in the trapazoid

Mathematics

1 answer:

kondaur [170]1 year ago

4 0

EF = 45

Step-by-step explanation:

Area if Trapezium = $\frac{a + b}{2} h$

Median = $\frac{1}{2} (a + b)$

Median = 5x

5x = 1/2 ((x + 3) + 78)

5x = (x + 81) / 2

10x = x + 81

9x = 81

x = 9

EF = 5x

EF = 5(9)

EF = 45

You might be interested in

Solve the equation. Round your answer to the nearest hundredth.<br> 47 +3.81k = -41

Harman [31]

Answer:

i have no idea but if i had to guess it would be around -3.00k or -4.00k

Step-by-step explanation:

4 0

3 years ago

One third of a birds eggs hatched. If 2 eggs hatched, how many eggs did the bird lay?

Paul [167]

If 1/3 of a birds eggs hatch and 2 eegs hatch the bird would have to have laid 6 eggs in total.

8 0

3 years ago

Read 2 more answers

Write the explicit<br> rule for the nth term.<br> Then find a71.<br> {O, -8, -16, -24 ...}

yulyashka [42]

Answer:

Step-by-step explanation:

{0, -8, -16, -24,...} here you add -8 each time so the rule is

$a_{1} = 0, a_{n} = a_{n-1} -8$

the 71 term is

$a_{71} = 0 + (71 - 1) * (-8) = 70 * (-8) = -560$

3 0

3 years ago

How to do this question plz answer

Soloha48 [4]

Answer:

(⌐■-■)

Step-by-step explanation:

Add perimeter of a quarter circle with radius 7 cm.

Hope this helps....

Have a nice day!!!!

3 0

3 years ago

If the measure of < A is 99 ° and the measure of < B is 81 ° , then < A and < B are _____.

Doss [256]

Answer:

D.supplementary angles

Step-by-step explanation:

81+99=180

6 0

3 years ago

Read 2 more answers