2 years ago

Solve this questiion please asap

Mathematics

2 answers:

Alborosie2 years ago

7 0

Answer:

Y=3

Step-by-step explanation:

please mark brainliest

liberstina [14]2 years ago

4 0

Answer:

Y = 3

If you need me to explain it step by step lmk.

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Harrizon [31]

Answer:

is x = 2

Step-by-step explanation:

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6 0

3 years ago

F(x) = –x^2+ 6<br> Find f(-3)

Lynna [10]

So if f(-3), then x = -3.

Substitute.

y = -(-3)^2 + 6

= -(9) + 6

= -3

Hope it helped

6 0

3 years ago

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I need help plz:((((((((((

pashok25 [27]

Answer:

a) $y=\frac{28}{75}(x-1900)+47.3$

b) 86.5 years

Step-by-step explanation:

All values are rounded to 2 decimal places

a) We can find line by using y =mx+b

$y=mx+b\\m=\frac{y^{2}-y^{1} }{x^{2}-x^{1}}\\m=\frac{69.7-47.3}{1960-1900} \\m=\frac{22.4}{60} \\m=\frac{28}{75}\\c=y-intercept\\y-intercept=47.3\\y=\frac{28}{75} (x-1900)+47.3$

Therefore the line of best fit is $y=\frac{28}{75}(x-1900)+47.3\\$

b) We can do this by using the formula of the best fit line to estimate the life expectancy of someone born in 2005

$y=\frac{28}{75}(x-1900)+47.3\\y=\frac{28}{75}(2005-1900)+47.3\\y=\frac{28}{75}\times105+47.3\\y=86.5$

Therefore the estimated life expectancy of someone born in 2005 is 86.5 years

PS. Please give brainliest answer this was a lot of working out

3 0

3 years ago

A car drove 1550 miles on 45 gallons of gas. What is the Unit Rate of miles<br> per gallon of gas? *

Nataliya [291]

I’m not sure sorry!

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3 years ago

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Percentages:

klasskru [66]

Answer:

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Step-by-step explanation:

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3 years ago