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zepelin [54]
3 years ago
8

Answer this ASAP I really need it

Mathematics
1 answer:
Ede4ka [16]3 years ago
8 0
Given the expression
-2 + 6.45z - 6 + (-3.25z)

First, classify like terms, constant with constant, coefficient-variable with coefficient-variable
-2 + 6.45z - 6 + (-3.25z)
= 6.45z + (-3.25z) - 2 - 6

Second, combining like terms
= 6.45z + (-3.25z) - 2 - 6
= 6.45z - 3.25z - 8
= 3.20z - 8

The simplest form is 3.20 - 8
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X^2 + 3x - 4<br><br> please answer quickly! i will mark whoever answers first as brainliest &lt;3
vlabodo [156]

Answer:

(x-1) (x+4)

Step-by-step explanation:

Factor x^2+3x-4 using the AC method

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6 0
1 year ago
What is the value of x in the equation 7x + 2y = 48 , when y = 3?
storchak [24]
7x + 2y = 48

7x + (2x3) =48
7x + 6 = 48
7x = 48 - 6
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7 0
3 years ago
Read 2 more answers
Find a, b, and h. please help
Andrew [12]

Answer:

Not completely sure if this is correct but I got

a: 12

b: 24sqrt2

h: 8sqrt2

Step-by-step explanation:

7 0
3 years ago
Can someone help me with questions 25 through 28
AleksAgata [21]
25. 3y+15

26. 15k+20

27. 21n+7p

28. 60w+20x

Also, you got number 19, number 21, and number 24 wrong.

D+D+D+D+D = 5D, not D⁵

S+S+S = 3S, not S³

N+N+N+N = 4N, not N⁴

Remember, repeated addition, (n+n+n) is 3n. Repeated multiplication, (n•n•n) is n³.

Hope this helps.
3 0
3 years ago
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