1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
meriva
3 years ago
8

PLEASE HELP ME!! I AM HAVING SO MUCH PROBLEMS!!

Mathematics
1 answer:
kotykmax [81]3 years ago
3 0
1) For a quadratic equation, we'll have two answers typically. We're looking for two numbers that when multiplied give -64, and when added give -12. This is a bit of trial and error, but you go about it by systematically factoring -64 in all possible combinations: 64=-2*32=2*-32=-4*16=4*-16=-8*8. Of these, I can 'see' that I can make -12 with 4 and -16. So the factorization of the equation becomes:

(x-16)(x+4)=0, so x=16 or x=-4.

Answers B and D are correct.

For (2), same trick applies. Rewrite as x²-8x-48=0. Factor as (x+4)(x-12)=0 because 4*-12=-48 and 4-12=-8. The other solution is x=12.
You might be interested in
What is the area of the rectangle
soldi70 [24.7K]
In order to answer the question we need a picture of some kind
6 0
3 years ago
Read 2 more answers
Point R on the coordinate grid below shows the location of a car in a parking lot. A second car needs to park 7 units above R to
VLD [36.1K]
If this helps I got 2,-3 when I plug it into the graph though it says 2,3
6 0
3 years ago
Read 2 more answers
1/2 ÷8 = <br><br> this on studyisland
vitfil [10]

Answer:

0.19

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
the perimeter of a rectangle window is 36 feet. the width of the window is 4 feet more than the the length. what are the dimensi
abruzzese [7]
The dimensions are 4.5 x 8.5.

4 0
3 years ago
Read 2 more answers
4. A ramp is being constructed with wood and then filled with concrete. How many cubic feet of concrete will be needed to comple
Vlad [161]

Answer:2.5

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • I need help with the puzzle plsssss it’s due Wednesday!
    14·2 answers
  • The solution x=6 is a solution to which of the following equations?
    5·1 answer
  • Find the equation in slope - intercept form that describes a line through (2,4) with slope 0
    13·2 answers
  • What is the volume of the cone below?​
    12·2 answers
  • Assume that y varies directly with x. If x=5 when y=-8 find x when y=16
    5·2 answers
  • Find the length of both of the unknown sides in the triangle shown here.
    15·1 answer
  • HELP ASAP <br> IF YOU TAKE THE POINTS IM REPORTING U<br> QUESTION IN PIC
    5·2 answers
  • PLEASE HELP ME! IS THIS CORRECT?
    8·2 answers
  • Which statements are correct for the inequality graphed on the number line?
    11·2 answers
  • Someone help meee?<br> This is soo hard
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!