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DedPeter [7]
3 years ago
14

Look at this triangle. B 8 cm A 22 cm Work out length AB.

Mathematics
1 answer:
brilliants [131]3 years ago
7 0

Answer:

23.41cm

Step-by-step explanation:

Using Pythagoras theorem

a²+b² = c²

Where a and b are sides of the triangle and c is the Hypotenuse.

If we substitute the values

B= 8 cm

A= 22 cm

22²+8² = c²

484 + 64= c²

√548 = c

C= 23.41

Hence, length AB is 23.41cm

CHECK THE ATTACHMENT

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mrs_skeptik [129]

Answer:

56

Step-by-step explanation:

To find the area of a rectangle we have the foruma A=WxL.

But we already have the area and length so we can plug that in

5488=Wx98

Now its an algebreic expression.

SInce its multiplying we do the opposite, so we divide 98 on both sides.

98/98 crosses itself out so now its 5488/98. Which equals 56. So now our expression is W=56. To fact check we put the numbers 56 and 98 into the formula to see if we get 5488.

A=56x98

A=5488

7 0
1 year ago
The width of a rectangle is 4 1/6 feet, and its area is 35 square feet. What is the perimeter of this rectangle?
DanielleElmas [232]

Answer:

perimeter = 25.13feets

Step-by-step explanation:

width = 25/6 feet

Area = 35 square feet

lenght = Area/width = (35*6)/25 = 8.4feets

perimeter of the rectangle = 2(25/6 + 8.4) = 25.13 feets

5 0
3 years ago
What goes into 9 12 6 3 and 4
Leokris [45]
It could possibly be one.
3 0
3 years ago
PLZ HELP I CANT GET MY PHONE UNTIL I PASS THIS TEST HELP!!!!!!!
sladkih [1.3K]

Answer:

49

Step-by-step explanation:

4 : 3

x : 21

ok so we can divide 21 by 3 and get 7.

7 × 4 = 28

4 : 3 = 28 : 21

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5 0
3 years ago
Chris buys a car for $24,000. If the car loses value at a rate of 9% per year, what will it be worth in 5 years? Round to the ne
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A=p(1-r)^n
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