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Damm [24]
3 years ago
15

14-15 Estimate the value of Y when x= 19

Mathematics
1 answer:
Setler [38]3 years ago
5 0

Answer:

the answer is 21-20

Step-by-step explanation:

hope this helps please ist me brainlyest I am a beginner

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Write an equation in standard form for the line, where the points (-2, -1) and (0, 4) are on the line
DedPeter [7]

Answer:

An equation in standard form for the line is:

\frac{5}{2}x-y=-4

Step-by-step explanation:

Given the points

  • (-2, -1) and (0, 4)

The slope between two points

\mathrm{Slope\:between\:two\:points}:\quad \mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}

\left(x_1,\:y_1\right)=\left(-2,\:-1\right),\:\left(x_2,\:y_2\right)=\left(0,\:4\right)

m=\frac{4-\left(-1\right)}{0-\left(-2\right)}

m=\frac{5}{2}

Writing the equation in point-slope form

As the point-slope form of the line equation is defined by

y-y_1=m\left(x-x_1\right)

Putting the point (-2, -1) and the slope m=1 in the line equation

y-\left(-1\right)=\frac{5}{2}\left(x-\left(-2\right)\right)

y+1=\frac{5}{2}\left(x+2\right)

y=\frac{5}{2}x+4

Writing the equation in the standard form form

As we know that the equation in the standard form is

Ax+By=C

where x and y are variables and A, B and C are constants

so

y=\frac{5}{2}x+4

\frac{5}{2}x-y=-4

Therefore, an equation in standard form for the line is:

\frac{5}{2}x-y=-4

7 0
3 years ago
If a population of 300 cells doubles every hour, which function represents the population after (h) hours
tangare [24]
I say y=300(2x) X=hours Y=population
Y=600x
8 0
3 years ago
I WILL BRAINLIEST PLZ HELP ME!!!
DedPeter [7]
Whats the ? I cant answer it without a  ?
3 0
4 years ago
I don’t know and need help I am very bad at their type of math please some one
shusha [124]

Answer:

Steve should order the round pizza to get more crust.

Step-by-step explanation:

They are essentially asking which pizza has a larger perimeter, because we can assume that the crust is of equal thickness on either pizza. To find the side length of the square pizza we find the square root of the area, \begin{document}\\\sqrt{49}\\\end{document}\\=7 and to get the perimeter from the side length we multiply by 4, \begin{document}\\7*4=28\\\end{document}. To get the perimeter of the round pizza we first find the radius from the area. The formula for area of a circle is π*r^2 so we divide the area by π to get 49, and the square root of 49 gives us a radius of 7. To get perimeter of a circle, also called circumference, you multiply the diameter times π and the diameter is twice the radius. We multiply 7 by 2 to get the diameter, 14 and then multiply by pi to get the circumference which is approximately 43.982. 43.982 is larger than 28 so Steve should order the round pizza.

3 0
4 years ago
If g(x) = -3x^2 - 5x + 5, calculate g(-3).
Sholpan [36]

Answer:

g(-3) = -7

Step-by-step explanation:

g(x) = -3x^2 - 5x + 5\\\\g(-3)=-3(-3)^{2} -5(-3)+5\\\\g(-3)= -27+15+5\\\\g(-3)=-7

6 0
3 years ago
Read 2 more answers
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