Answer:
< Less Than and > Greater Than
This symbol < means less than, for example 2 < 4 means that 2 is less than 4. This symbol > means greater than, for example 4 > 2. ≤ ≥ These symbols mean 'less than or equal to' and 'greater than or equal to' and are commonly used in algebra. In computer applications <= and >= are used.
Step-by-step explanation:
0.3 is your answer to your question
4.80/15 = 0.32 per card
for 8 cards...
8 * 0.32 = 2.56 <==
Answer:
(z+7)*(z+4)
Step-by-step explanation:
The first term is, z2 its coefficient is 1 .
The middle term is, +11z its coefficient is 11 .
The last term, "the constant", is +28
Step-1 : Multiply the coefficient of the first term by the constant 1 • 28 = 28
Step-2 : Find two factors of 28 whose sum equals the coefficient of the middle term, which is 11 .
-28 + -1 = -29
-14 + -2 = -16
-7 + -4 = -11
-4 + -7 = -11
-2 + -14 = -16
-1 + -28 = -29
1 + 28 = 29
2 + 14 = 16
4 + 7 = 11 That's it
Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, 4 and 7
z2 + 4z + 7z + 28
Step-4 : Add up the first 2 terms, pulling out like factors :
z • (z+4)
Add up the last 2 terms, pulling out common factors :
7 • (z+4)
Step-5 : Add up the four terms of step 4 :
(z+7) • (z+4)
Which is the desired factorization
Answer:
1) Equation: 2x+6 = -2x-2
Solution: x = -2
2) Equation: 2 = -8-1x
Solution: x = -10
3) Equation: 3x-2 = 4
Solution: 2
Step-by-step explanation:
1) Add the "x" and "1" boxes on each side to form 2x+6 = -2x-2.
2x+6 = -2x-2
Add 2 to the -2 on the right and to the 6 on the left, making it:
2x+8 = -2x
Subtract 2x from the 2x on the left and -2x on the right, making it:
8 = -4x
Divide -4 on both sides, making the answer:
x = -2
2) Add the 1's, x's, and -x's on both sides, making it:
2 = -8-1x
Then add 8 on both sides, making it:
10 = -1x
Divide -1 on both sides, making the answer=
x = -10
3) Individually add the boxes on each side, making it:
3x-2 = 4
Add 2 on both sides, making it:
3x = 6
Divide 3 on both sides, making the answer=
x = 2
