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Nady [450]
3 years ago
9

Please help me please i really need help please

Mathematics
2 answers:
VashaNatasha [74]3 years ago
7 0
The answer is
a = 4
b = -1
Kryger [21]3 years ago
6 0
A=4
b=-1 they were right
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How do I write an expression for n . a using only addition
Taya2010 [7]

Answer:

i don't know  anymore

Step-by-step explanation: I don't know anymore

3 0
2 years ago
50 POINTS FOR THIS 1 QUESTION I JUST NEED THE ANSWER
Oksana_A [137]

Answer:

a = 3

b = 2

c = 0

d = -4

Step-by-step explanation:

Form 4 equations and solve simultaneously

28 = a(2)³ + b(2)² + c(2) + d

28 = 8a + 4b + 2c + d (1)

-5 = -a + b - c + d (2)

220 = 64a + 16b + 4c + d (3)

-20 = -8a + 4b - 2c + d (4)

(1) + (4)

28 = 8a + 4b + 2c + d

-20 = -8a + 4b - 2c + d

8 = 8b + 2d

d = 4 - 4b

Equation (2)

c = -a + b + d + 5

c = -a + b + 4 - 4b+ 5

c = -a - 3b + 9

28 = 8a + 4b + 2c + d (1)

28 = 8a + 4b + 2(-a - 3b + 9) + 4 - 4b

28 = 6a - 6b + 22

6a - 6b = 6

a - b = 1

a = b + 1

220 = 64a + 16b + 4c + d (3)

220 = 64(b + 1) + 16b + 4(-b - 1 - 3b + 9) + 4 - 4b

220 = 60b + 100

60b = 120

b = 2

a = 2 + 1

a = 3

c = -3 - 3(2) + 9

c = 0

d = 4 - 4(2)

d = -4

5 0
2 years ago
Read 2 more answers
6a+5a=-11 whats the breakdown to get the answers
kenny6666 [7]

add 6a and 5a and get 11a

then:

11a=-11

a=-1


8 0
2 years ago
Under her cell phone plan, Morgan pays a flat cost of $54 per month and $5 per gigabyte, or part of a gigabyte. (For example, if
Bogdan [553]

Answer: She can use 4 gigabyte while remaining in her budget.

Step-by-step explanation:

You would first subtract 54  from 70 which leaves you with 16,

Then you would divide 16 by 4 to find how many gigabytes she could use which gives you 4

So she can use 4 gigabyte while remaining in her budget.

Learn  more about basic mathematics operations here

brainly.com/question/28493322

#SPJ9

7 0
1 year ago
Read 2 more answers
This is 10 points plz help ( NO LINKS )
Semenov [28]

Answer:

D is correct

Step-by-step explanation:

The opposite of a negative number is the positive version of it which is 3.5 and the absolute value of a number is always the positive version of a number which would make it also 3.5.  For example absolute value of -4 is 4 and absolute value of 5 is 5.

4 0
3 years ago
Read 2 more answers
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