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3 years ago

I need help on this.

Mathematics

1 answer:

SpyIntel [72]3 years ago

4 0

Answer:

a) answered in the image attached

b) y=2.75x+3.50

c) y=2.75(5)+3.50

y=17.25

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What is the axis of symmetry for the parabola with the equation y=2x^2

Anestetic [448]

The axis of symmetry would be x=0

8 0

3 years ago

Determine which ordered pairs are solutions to the equation 3x+7y=21

mafiozo [28]

Answer:

(0,3) and (7,0) are solutions.

Step-by-step explanation:

In a pair of coordinates, they are always listed as (x,y). Since this is the case, you plug in each coordinate to their respective places.

For (0,3)

3(0) + 7(3) = 21

0 + 21 = 21

For (7,0)

3(7) + 7(0) = 21

21 + 0 = 21

To double check that (1,2) isn't a solution:

3(1) + 7(2) = 21

3 + 14 = 21

17 = 21 X

This doesn't work.

Marking as Brainliest is much appreciated.

7 0

3 years ago

What is the equation of the circle with center (-3.2, -2.1) and radius 4.3?

Ilya [14]

The equation of the circle is : $x^{2}$ + $y^{2}$ + 6.4 $x$ + 4.2 $y$ = 3.84

<h3>Meaning of a Circle</h3>

A circle is a loci or a continuous line that equidistant from the center to any point on the line. it drawn starting from a point and ending on that same point.

The equation of a circle is an equation used to find points on a circle so the circle can be drawn with accurate measurement. it can also be used to find the missing points.

In conclusion, The equation of the circle is : $x^{2}$ + $y^{2}$ + 6.4 $x$ + 4.2 $y$ = 3.84

Learn more about equation of a circle: brainly.com/question/1506955

#SPJ1

6 0

2 years ago

I need help please help me

Mrrafil [7]

Answer:

$y=\dfrac{1}{36}x^2$