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lesya692 [45]
3 years ago
8

Y = 5x + 4 and y =- 5x -6

Mathematics
1 answer:
olchik [2.2K]3 years ago
3 0

Answer:

there you o plz can u mark me brainlest

Step-by-step explanation:

5x+4         -5x-6

m=5           m=-5

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Evaluate 3z+6 when z=4​
tatyana61 [14]

Answer:

18

Step-by-step explanation:

plug 4 for z

3(4)+6=18

5 0
3 years ago
If (1, 2) and (3, 4) lie on the same line, give the slope-intercept equation of the line.
Masja [62]
The slope of the line is  (4-2) / (3-1) = 2/2 = 1 
y - y1 = x - x1 
here x1 = 1 and y1 = 2 :-
y - 2 = x - 1
y = x + 1 <---- Answer
3 0
3 years ago
Lightning mcqueen was traveling at a high speed of 110 mph. If he traveled 275 miles, how long was his trip
stira [4]

Answer:

2 hours 30 minutes

Step-by-step explanation:

Given data

speed= 110mph

distance travelled= 275miles

Required

the time of travel

We know that

Speed= distance/time

time= distance/speed

time= 275/110

time=2.5 hours

Hence the time is 2 hours 30 minutes

7 0
3 years ago
What is the surface area of the cylinder?
bonufazy [111]

Answer:

Formula for the SA (Surface Area) is 2πrh+2πr^2.

Replace the values and you get answer of 251.999570694 = 252pi

7 0
2 years ago
How quickly do synthetic fabrics such as polyester decay in landfills? A researcher buried polyester strips in thes oil for diff
ad-work [718]

Answer:

no enough evidence to draw up a conclusion

Step-by-step explanation:

Data:

let: \mu _{1} = decay after 2 weeks

    \mu _{2} = decay after 16 weeks

Making the hypotheses:

Null hypothesis; H_{o} = \mu _{1}  - \mu _{2} = 0

the deviation = 0.05

the standard difference  = 4

Conditions:

The normal distribution curve can be plotted on a graph and the plot shows that the distribution is a skewed distribution.

Then,

t = \frac{(123.8-16.4)-0}{\sqrt{\frac{4.6^{2} }{5}+\frac{16.09^{2} }{5}   } } \\  = 0.989

Therefore, it can be concluded that 0.1983 > 0.05. This presents our failure to reject the null hypothesis.

Thus, there is not enough evidence to conclude that polyester decays more in less than 2 weeks.

5 0
3 years ago
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