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Alexxandr [17]
3 years ago
6

What is the quadratic formula? Can you help me with an example please?

Mathematics
1 answer:
Marta_Voda [28]3 years ago
3 0
Ax^2 + bx +c
Divide both sides of the equation by a, so that the coefficient of x2 is 1. Rewrite so the left side is in form x2 + bx (although in this case bx is actually ). Since the coefficient on x is , the value to add to both sides is.

Source
https://www.montereyinstitute.org/courses/DevelopmentalMath/COURSE_TEXT2_RESOURCE/U16_L5_T2_text_final.html
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The machine can make soda bottles each
arsen [322]

Answer:

The number of soda battles the machine can make per minute is 40

Step-by-step explanation:

What we simply want to do here is to use the two marked points to get the number of soda bottles made per minute

Mathematically, what we have to do here is to

use the two point slope equation

we have this as;

m = (y2-y1)/(x2-x1)

(x1,y1) = (3,120

(x2,y2) = (5,200)

m = (200-120)/(5-3) = 80/2 = 40

8 0
3 years ago
What is the area of this composite figure<br> 48.56cm2 <br> 49.12cm2<br> 74.24cm2 <br> 36.56cm2
Vlada [557]

Answer:

D. 36.56 cm²

Step-by-step explanation:

The composite figure is composed of a rectangle and two semicircles.

The two semicircles makes 1 full circle.

Thus:

Area of the composite figure = area of rectangle + area of circle

= L*W + πr²

L = 6 cm

W = 4 cm

r = ½(4) = 2 cm

Area = 6*4 + π*2²

Area = 24 + 12.56

Area = 36.56 cm²

6 0
3 years ago
Which formula would be used to find the measure of angle 1?
ankoles [38]

Answer:

I believe its the 4th option on edge...

Step-by-step explanation:


7 0
3 years ago
Read 2 more answers
When Justin goes to work, he drives at an average speed of 60 miles per hour. It takes about 1 hour and 30
dexar [7]

Answer:

$13.14

Step-by-step explanation:

60 mi/1 hour = x mi/1.5 hours

x = 90 mi to drive to work

25 mi/1 gallon = 90 mi/y gallons

y = 3.6 gallons to get to work

$3.65/1 gallon = $z/3.6 gallons

z = $13.14

6 0
4 years ago
A cylinder has a volume of 288pie cubic meters and a height of 9 meters. What is the area of the base?
Butoxors [25]
      V = πr²h
  288 = 3.14(r²)(9)
  288 = 3.14(9r²)
  288 = 28.26r²
28.26   28.26
10.19 ≈ r²
  3.19 ≈ r

B = πr²
B = 3.14(3.19)²
B = 3.14(10.19)
B = 31.9966
7 0
3 years ago
Read 2 more answers
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