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amid [387]
4 years ago
5

The length of a rectangle is 3 units more than the width. The area of the rectangle is

Mathematics
2 answers:
PIT_PIT [208]4 years ago
5 0
The asnwer is 8 units for the length
Anastaziya [24]4 years ago
4 0

Answer:

8 units for the length

Step-by-step explanation:

Let l = length

w = width

l = w+3

A = l*w

substitute what we know

40 = (w+3) *w

distribute

40 = w^2 +3w

Subtract 40 from each side

0 = w^2 +3w -40

Factor

0 = (w+8) (w-5)

Using the zero product property

w+8 =0   w-5=0

w= -8   w=5

Since the width cannot be negative

w=5

l = w+3 = 5+3

l = 8 units

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URGENT!! NEED THIS IN TWO HOURS. DUMB ANSWERS WILL BE REPORTED ALTHOUGH I UNDERSTAND IF YOU MAKE A SIMPLE MISTAKE IN YOUR CALCUL
Andre45 [30]

Yo sup??

The given points are (1,1),(1,3) and (9,2)

equation of circle is

8x²+8y²+ax+by=0

let us plug in (1,1) in the equation we get

8+8+a+b=0

a+b=-16

let us now plug in (1,3) in the equation

8+8*3²+a+3b=0

a+3b=-80

let us. now solve the two equation in terms of a and b

we get

2b=--64

b=-32

and

a=-16+32

=16

therefore the equation is

8x²+8y²+16x-32y=0

Hope this helps

6 0
3 years ago
128.34 as a mixed number in simplest form
katrin2010 [14]
128.34
= 128+ 0.34
= 128+ 34/100
= 128+ (34/2) / (100/2)
= 128+ 17/50
= 128 17/50

128.34 written as a mixed number is 128 17/50~
7 0
3 years ago
Renee was able to plant 15 plant in 5min at this rate how many flowers could she paint plant in 45 min
Sedbober [7]

Answer:

Answer is 135 plant

Step-by-step explanation:

We have given that,

In 5 min Renee can plant 15 plant.

That means in one minute Renee can plant \frac{15}{5} plant.

i.e. Rate of planting = 3 plant per minute

So, In 45 minutes , she can plant  45×3 plant

i.e Plant she can plant in 45 minute = 135 plant

6 0
3 years ago
Easy work! Please click on the photo and do 5. 10. 14. And 16.Also it’s is easy but only for other people not me just for people
horsena [70]

Answer: the 1 is > the one below it is < the one next to it unknown

and the one next to it is > and the last one is =

branliyist please

Step-by-step explanation:

4 0
3 years ago
Kayson is looking at two buildings, building A and building B, at an angle of elevation of 73' Building A is 30 feet away, and b
wlad13 [49]

Answer:

Building B, it is around 16 35 feet taller than building A ( C )

Step-by-step explanation:

<u>Calculating  the height of Building A </u>

Height = opposite ( ? )

∅ = 73°

base/adjacent  = 30 ft

∴ Height = Tan 73° * base

               = 3.2709 * 30 =  98.127 ft

<u>Calculating the height of building B </u>

∅ = 73°

base/adjacent  = 35 ft

∴ height = Tan 73° * base

              = 3.2709 * 35 = 114.4815

Therefore we can say Building B is Taller by approximately 16.35 feet

7 0
3 years ago
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