3 years ago

Please help! Will give brainliest.

Mathematics

2 answers:

Furkat [3]3 years ago

8 0

Answer:

Step-by-step explanation:

that shape you are seeing that has an x is a trapezium

so,area of a trapezium is ½(a+b)×h

so now you are finding height

height =a plus b divided by ½

=11+7÷½

that is ½ divided by 18 which is=9

so your answer is 9

please mark as brainlest

Anika [276]3 years ago

3 0

Answer:

8.57

Step-by-step explanation:

(x+15)/11=15/7
x+15=15*11/7
x=15*4/7=60/7=8.57

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