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Dmitry [639]
3 years ago
10

The length of the hypotenuse of a right triangle is 157 units. The length of one leg of the triangle is 132 units. Lara wrote th

e following step to find the length of the unknown leg: Length of the unknown leg = 1572 − 1322 = 24,649 − 17,424 = 7,225 units Which statement best explains whether Lara's step is correct or incorrect?
Mathematics
1 answer:
just olya [345]3 years ago
8 0

Answer:

24649-17424=7225 UNITS

Step-by-step explanation:

This step implies that Lara was using the Pythagoras theorem to find the missing length of the right triangle.

a²+b²=c², taking a and b to be the  two lengths adjoined by the right angle and c the hypotenuse.

Laura's step represents the step above.

157²=24649

132²=17424

157²-132²=c²

24649-17424=7225

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A new neighborhood activity complex is being built in madison. the perimeter of the rectangular playing field is 268 yards. the
motikmotik

Answer:

the width is 47 yards

the length is 87 yards

Step-by-step explanation:

Given

the perimeter of the rectangular playing field is 268

perimeter of rectangle is given by 2* ( length + width)

hence for given rectangular playing field

268 =  2* ( length + width)  __________________equation A

Let the width of field be W

length is seven less than  double the width

Width is W then double the width will be 2*W

then 7 yards less than the double the width will be 2*W - 7

Therefore length of field in terms of W is 2*W - 7

Now substituting value of length with  2*W - 7  and

width with W in equation A, we have given below expression

268 =  2* ( 2*W - 7  + W)

=> 268/2 = 3W - 7

=> 134 = 3W - 7

=> 3W = 134 + 7 = 141

=> W = 141/3 = 47

Therefore width of  rectangular playing field is 47 yards

Length of  rectangular playing field = 2W - 7 = 2*47 - 7 = 94 - 7

Length of  rectangular playing field = 87

Therefore Length of  rectangular playing field is 87 yards

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3 years ago
An 800g loaf of brown bread cost £1 20 calculate the cost of brown bread per kg
Aleonysh [2.5K]

Answer: 6.66666666666667

Step-by-step explanation:

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3 years ago
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Answer:

How much compound interest is earned at 35 years? 850

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PLEASE HELP I GIVE THANKS
ahrayia [7]
It's either A or C I don't know for sure.
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Answer:

<em>Answer</em><em> </em><em>is given below with explanations</em><em>. </em>

Step-by-step explanation:

we \: know \: that \:  {(x + y)}^{2}  =  {x}^{2}  + 2xy +  {y}^{2}  \\ to \: find \: :  {(r + s)}^{2}  \\ by \: the \: above \: mentioned \: formula \\ we \: get \: the \: answer \\  {(r + s)}^{2}  =  {r}^{2}  + 2rs  +  {s}^{2}  \\ hence \: the \: product \: is \:  {r}^{2}  + 2rs \:  +  {s}^{2}

<em>HAVE A NICE DAY</em><em>!</em>

<em>THANKS FOR GIVING ME THE OPPORTUNITY</em><em> </em><em>TO ANSWER YOUR QUESTION</em><em>. </em>

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