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VMariaS [17]
3 years ago
11

Why is it necessary to learn how to factor if you can just use the quadratic formula to solve quadratic equations?

Mathematics
1 answer:
xxTIMURxx [149]3 years ago
4 0
Because u might need it in the real world.
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-3x+4=13 SOLVE PLZ! INEQUALITY
arlik [135]
Hi!

What you'll first need to do is subtract 4 from 4 and 13. After doing so, your equation will look like this...

-3x=9

Next, you'll need to divide -3x and 9 by -3. After you've done that, you'll get...

x=-3.

So your answer would be x=-3

I hope this helps!
5 0
3 years ago
Read 2 more answers
Korey kept track of the number of miles he ran each week for five weeks. The median number of miles he ran during the five weeks
shepuryov [24]

Answer:

the correct answer would be A. the mean is when you add up all of them and divide it by how many numbers there are which in this case is 5. and the median is the number in the middle, in this case 20, therefore when you add up all numbers in A ,you get 105 and you divide it by 5 which gives you 21. :))

6 0
3 years ago
Which quadratic function in vertex form can be represented by the graph that has a vertex at (3, -7) and passes through the poin
Vaselesa [24]

Answer:

Answer is D

Step-by-step explanation:

(3,-7) and (1,-10) belong toD Variant

8 0
3 years ago
Read 2 more answers
Find the area to the nearest square foot of the shaded region below, consisting of a square with a circle cut out of it. Use 3.1
NeTakaya

Answer:

22 square feet

Step-by-step explanation:

Area of shaded region = Area of square - Area of circle. The diameter of the circle is also the length of the side of the square as the circumference of the circle is on the circumference of the square.

Area of circle = 3.14 × r × r

r = 10 ÷ 2

= 5

Area of circle = 3.14 × 5 × 5

= 78.5

Area of square = length × length

Area of square = 10 × 10

= 100

Area of shaded region = Square - Circle

= 100 - 78.5

= 21.5

= 22 (to the nearest square foot)

I hope this helps :)

7 0
3 years ago
Meryl needs to add enough water to 11 gallons of an 18% detergent solution to make a 12% detergent solution. Which equation can
LenKa [72]
A suitable equation will equate the quantity of detergent both before and after the water is added to the solution.

the amount of detergent in 11 gal of 18% solution is the same as the amount of detergent in the 12% solution (after g gallons of water are added)
  .18*11 = .12*(11+g)
7 0
3 years ago
Read 2 more answers
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