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algol [13]
4 years ago
5

What is 5 divide by 5i

Mathematics
1 answer:
kupik [55]4 years ago
4 0
5/5i*-5i/-5i=-25i/-(5i)^2=-25i/25=-i
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Jim is enclosing a rectangular garden with 170 feet of fencing. The length of the garden is 10 feet more than twice it's width,
Hunter-Best [27]

Answer: Area = 1500 feet^2

Step-by-step explanation:

Jim is enclosing a rectangular garden with 170 feet of fencing. This means the perimeter of the rectangular garden =170 feet

Let length = x

Let width = w

The length of the garden,x is 10 feet more than twice it's width, w. This means

x =10+2w---------1

Perimeter = 2x+2w =170---------2

Putting equation 1 in equation 2,

2(10+2w) +2w= 170

20 + 4w +2w = 170

6w = 170-20=150

w = 150/6

= 25feet

Put w=25 in equation 1

x =10 +2×25= 10+50=60 feet

Area = length × width = x×w

= 60×25=1500feet^2

5 0
3 years ago
a speeding ticket in conroe costs $115 for the first 10 mi/h over the speed limit and $1 for each additional mi/h. in lakeville,
pychu [463]
<span>suppose the speed = x mi/h
Overspeed cost = 115 + x - 65 = 50 + x ....... 1
Overspeed Cost = 50 + (x -65)*10 = 10x - 600 ..........2
from [1] and [2], we get,
10x - 600 = 50 + x
10x -x = 50 +600
9x = 650
x = 72.22 mi/h
hope it helps
</span>
5 0
3 years ago
Read 2 more answers
The extended warranty on a $960 dishwasher is 21% of the purchase price and lasts for eight years. What is the effective cost pe
Veronika [31]

Answer

Find out the what is the effective cost per year of the extended warranty .

To proof

As given

The extended warranty on a $960 dishwasher is 21% of the purchase price and lasts for eight years.

21% is written in the decimal form

= \frac{21}{100}

= 0.21

effective cost for  the extended warranty = 0.21 × 960

                                                                      = $ 201.6

Effective\ cost\ per\ year = \frac{201.6}{8}

                                                = $25.2

Therefore the

effective cost per year of the extended warranty be $25.2

Option (d) is correct .

Hence proved

3 0
3 years ago
Solve 27=3b ITS DUE PLZ HELP
Alex73 [517]

Answer:

b=9

Step-by-step explanation:

divide by 3 on both sides to get the variable (b) by itself

5 0
3 years ago
Find the surface area of each regular pyramid. Round to the nearest tenth if necessary.
strojnjashka [21]

if you notice the triangle on the left-hand-side, it has a base of 8 ft and a height/altitude of 10.


now, the triangular pyramid has 3 of those triangles standing up, and one at the base lying down, so 4 triangles with that base and altitude. So we can simply find the area of all 4 of those triangles, sum them up and that's the area of the triangular pyramid.


\bf \stackrel{\textit{area of the four triangles}}{4\left[ \cfrac{1}{2}(8)(10) \right]}

8 0
4 years ago
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