3 years ago

In the given figure, ABCD is a trapezium in which AD || BC,

Mathematics

1 answer:

anygoal [31]3 years ago

6 0

Answer:

252 cm²

Step-by-step explanation:

Find AB:

AB² = 41² - 40²

AB² = 81

AB = √81

AB = 9 cm

Area of the trapezium = ½(a + b) × h

Where,

a = 16 cm

b = 40 cm

h = 9 cm

Area = ½(16 + 40) × 9

Area = ½(56)×9

Area = 252 cm²

more points for more answers

3 0

4 years ago

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Identify the inverse of f(x)=x^2-9

Reika [66]

A
x=y^2-9
x+9=y^2
square root both sides
+-sqrt(x+9)

7 0

2 years ago

Eight less than four times a number is less than 56.What are the possible values of that number

Gemiola [76]

We have the next inequation
8-4x<56

-4x<56-8
-4x<48
-x<48/4
-x<12
x>-12

Solution: x>-12 or (-12,+∞)

4 0

4 years ago

If ED = x + 4 and DB = 3x - 8, find ED, DB, and EB

Tom [10]

Answer:

Part 1) $ED=10\ units$

Part 2) $DB=10\ units$

Part 3) $EB=20\ units$

Step-by-step explanation:

we know that

EB=ED+DB

ED=DB -----> given problem

Substitute the given values and solve for x

$x+4=3x-8$

$3x-x=4+8$

$2x=12$

$x=6$

Find the value of ED

$ED=x+4$

substitute the value of x

$ED=6+4=10\ units$

Find the value of DB

Remember that

ED=DB

therefore

$DB=10\ units$

Find the value of EB

EB=ED+DB

$EB=10+10=20\ units$

5 0

3 years ago

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He gets paid a car travel allowance of 75 cents per kilometre travelled.

Elena L [17]

Answer:

Umesh will get paid 90 because 120 × .75 = 90

6 0

3 years ago

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