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lesantik [10]
3 years ago
12

PQR is a right-angled triangle.

Mathematics
1 answer:
ICE Princess25 [194]3 years ago
3 0

Step-by-step explanation:

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Fred and Sue want to fence in a rectangular area in their yard for a vegetable garden. Suppose that they have 30 feet of fencing
larisa [96]

Answer:

a=35x−x^2

Step-by-step explanation:

Having  

70 ft of fencing with a  

width of x

feet and knowing the perimeter of a rectangle is  

p=2w+2l

we can state the length of the garden as:

70=2x+2l

and solving for  l

we know the length with be:

2l=70−2x or l=35−x  

And then knowing the formula for the area of a rectangle is  

a=w⋅l

we can write the equation as:

a=x⋅(35−x)a=35x−x^2

6 0
3 years ago
Read 2 more answers
Evelyn and Tia are having a bake sale. They have 453 cookies. Each box holds 12 cookies. How many boxes do they need?
balu736 [363]

Answer:

38 boxes

Step-by-step explanation:

4 0
3 years ago
A tablet manufacturer tested 125 tablets and found that 2 had broken screens. how many broken screens should the manufacturer ex
Tomtit [17]

Answer:

720

Step-by-step explanation:

125tablets, 2 of which had broken screens.

multiply 45000 by 2, then divide 125=720

4 0
2 years ago
What is the value of x?
rodikova [14]
1) expand the brackets 
6(-3 - x) - 2x = 14
-18 - 6x - 2x = 14
simplify
-18 - 8x = 14
then add 18 to both sides to get the x's on there own
-8x = 32
then divide by -8
x = 32/-8
x = -4

2) multiply everything by 7x
2 + (6 x 7x) + ( 17x × 7x) = 18 x 7x
2 + 42x + 119x^2 = 126x
put everything on one side
119x^2 - 84x + 2 = 0
then use quadratic equation to solve

x = 0.024671849 or 0.6812105039

 
6 0
3 years ago
What is the area of the kitchen floor in this floor plan?
masha68 [24]
We know that the Area of a Rectangle is:

A = L × W

From the Floor Plan, we know that the Width of the kitchen is 5m. We also know that the Length is 7m. 

Now input what we know into our equation:

A = L ×<span> W
</span>A = 7m ×<span> 5m
</span>A = 35 m^{2}


Hope this helps! 
6 0
3 years ago
Read 2 more answers
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