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Over [174]
3 years ago
6

The factorization of x^2 + 3x-4 is modeled with algebra tiles

Mathematics
1 answer:
o-na [289]3 years ago
5 0

Answer:

(x-1) (x+4)

Step-by-step explanation:

i used something called the box method, basically the way i got the answer is what equals 3 when added, but multiplies to make -4

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Write the standard form of the line that passes through the given points. include your work in your final answer. type your answ
timurjin [86]
Standard form is ax+by=c wher a and b and c ar integers

another
y-y1=m(x-x1)
that is the equation of a line that has a slope of m and passes through (x1,y1)

find slope

slope between the points (x1,y1) and (x2,y2) is
(y2-y1)/(x2-x1)

(-3,5) and (-2,-6)
slope=(-6-5)/(-2-(-3))=(-11)/(-2+3)=-11/1=-11

a point is (-2,-6)
y+6=-11(x+2)
distribute
y+6=-11x-22
add 11x both sides
11x+y+6=-22
minus 6 both sides
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8 0
3 years ago
Use substitution to solve the following system of equations.
Diano4ka-milaya [45]
d+e-f=-3 \\
e=f+d+7 \\
f=2e-6 \\ \\
\hbox{substitute 2e-6 for f in the 2nd equation and solve for e:} \\
e=2e-6+d+7 \\
e=2e+d+1 \ \ \ |-2e \\
-e=d+1 \ \ \ |\times (-1) \\
e=-d-1 \\ \\
\hbox{substitute -d-1 for e in the 3rd equation and solve for f:} \\
f=2(-d-1)-6 \\
f=-2d-2-6 \\
f=-2d-8

\hbox{substitute -d-1 for e and -2d-8 for f in the 1st equation and solve for d:} \\
d+(-d-1)-(-2d-8)=-3 \\
d-d-1+2d+8=-3 \\
2d+7=-3 \ \ \ |-7 \\
2d=-10 \ \ \ |\div 2 \\
d=-5 \\ \\ e=-d-1=-(-5)-1=5-1=4 \\ \\
f=-2d-8=-2 \times (-5)-8=10-8=2 \\ \\
\boxed{d=-5} \\ \boxed{e=4} \\ \boxed{f=2} \\
\hbox{answer D}
5 0
3 years ago
Can someone please help ;)
Stells [14]
10^2 - 6^2 = 64 = then square root it = 8
7 0
3 years ago
Lock 1 Problem 2. Solve the Equation. Show your steps in the table.
Ratling [72]

Answer:

x = 16

Step-by-step explanation:

12 - 8 = 4

1/4x = 4

4x4 = 16

x = 16

5 0
2 years ago
Find all numbers such that 16 plus 3 times the number is no more than 46. A. x > 11 B. x 11 D. x < 10
pochemuha

Answer:

           D.  x ≤ 10  (if you wrote the wrong sign)

or  No answer

Step-by-step explanation:

x - the number

3x   - three times the number

no more than 46 means  ≤46

16 + 3x ≤ 46

  3x ≤ 46 - 16

  3x ≤ 30

   x ≤ 30:3

   x ≤ 10

4 0
3 years ago
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