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lara31 [8.8K]
3 years ago
15

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

You might be interested in
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} + 6.4x + 4.2y = 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} + 6.4x + 4.2y = 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

Step-by-step explanation:

Where p is the distance from focus to vertex, the equation of the parabola with focus at (0, p) is ...

  y=\dfrac{1}{4p}x^2

Your parabola has p=9, so the equation is ...

  y=\dfrac{1}{4\cdot 9}x^2=\bf{\dfrac{1}{36}x^2}

3 0
3 years ago
No links, if answered correctly, I'll give brianliest!<br> <img src="https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B4%7D%20%282%5E%7B3
jenyasd209 [6]
Answer: 18
Steps:
.75(8+16)
.75(24)
18
8 0
3 years ago
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