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nirvana33 [79]
3 years ago
5

A gardener is installing fence around his garden. Let x represent the width of the garden, in feet. The perimeter of the garden

is 8x + 8. Which expression represents the length of the garden?
2x + 2
3x + 4
6x + 8
8x + 8 – 2x
Mathematics
2 answers:
hoa [83]3 years ago
6 0

Answer:

B 3x+2

Step-by-step explanation:

perimiter=2L+2W

P=2(L+W)

if x=width then

P=2(L+x)

P=8x+8

hmm

8x+8=2(L+x)

distribute

8x+8=2L+2x

minus 2x both sides

6x+8=2L

divide both sides by 2

3x+4=L

the length is 3x+4

B is answer

deff fn [24]3 years ago
6 0

Answer:

10x+8

Step-by-step explanation:

i dont have one

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3 years ago
Find the average rate of change for f(x) = x2 − 3x − 10 from x = −5 to x = 10.
kvasek [131]

Answer:

Average rate of change = 2

Step-by-step explanation:

Find the average rate of change for f(x) = x^2 − 3x − 10 from x = −5 to x = 10.


f(-5) = (-5)^2 − 3(-5) − 10 = 25 + 15 - 10 = 30

f(10) = 10^2 − 3(10) − 10 = 100 - 30 - 10 = 60

Average rate of change:

   f(10) - f(-5)                     60  -  30                         30

-------------------- =   ------------------------------- =   -----------------------  = 2

     10 - (-5)                            15                               15

   

4 0
3 years ago
Trucks that travel on highways have to stop at various locations to be weighed and inspected for safe brakes and light systems.
IrinaVladis [17]

Answer:

The reuired probability is 0.756

Step-by-step explanation:

Let the number of trucks be 'N'

1) Trucks on interstate highway N'= 76% of N =0.76N

2) Truck on intra-state highway N''= 24% of N = 0.24N

i) Number of trucks flagged on intrastate highway  = 3.4% of N'' = \frac{3.4}{100}\times 0.24N=0.00816N

ii)  Number of trucks flagged on interstate highway  = 0.7% of N' = \frac{0.7}{100}\times 0.76N=0.00532N

Part a)

The probability that the truck is an interstate truck and is not flagged for safety is P(E)=P_{1}\times (1-P_{2})

where

P_{1} is the probability that the truck chosen is on interstate

P_{2} is the probability that the truck chosen on interstate is flagged

\therefore P(E)=0.76\times (1-0.00532)=0.756

5 0
3 years ago
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