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Natasha2012 [34]
2 years ago
6

Whats the nth term of -1 -2 -3 -4 -5 ?

Mathematics
1 answer:
Fofino [41]2 years ago
5 0

Answer:

4n + 3

Step-by-step explanation:

d = (-5) - (-1)

= (-5) + 1

= (-4)

dn + (a - d)

4(n) + [(-1) - (-4)]

4n + [(-1) + 4]

<u>4n + 3</u>

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22. Solve 7x - 9 = 28+ 4(x - 1).<br> X=-3<br> X=3<br> x = 11<br> X=-11​
aleksley [76]

Answer:

c) x = 11

Step-by-step explanation:

Given equation: 7x - 9 = 28 + 4(x - 1)

<u><em>Steps:</em></u>

1. Distribute 4 through the parentheses:

7x - 9 = 28 + 4(x) + 4(-1)

7x - 9 = 28 + 4x - 4 [simplify]

7x - 9 = 24 + 4x

2. Subtract 4x from both sides:

7x - 4x - 9 = 24 + 4x - 4x

3x - 9 = 24

3. Add 9 to both sides:

3x - 9 + 9 = 24 + 9

3x = 33

4. Divide both sides by 3:

3x ÷ 3 = 33 ÷ 3

x = 11

5. Check your work:

7x - 9 = 28 + 4(x - 1) [substitute 11 for x]

7(11) - 9 = 28 + 4(11 - 1) [simplify]

77 - 9 = 28 + 4(10) [simplify]

68 = 28 + 40 [add]

68 = 68 ✔

Learn more here:

brainly.com/question/27844321

brainly.com/question/21222758

7 0
2 years ago
Read 2 more answers
Which expression is a difference of a number and a product?
ziro4ka [17]
Answer: 20-4x

Explanation:
20(a number) minus 4 times x
8 0
3 years ago
The total bill for dinner, including tax, was $65.81. In Indiana there is a 7% sales tax. What was the price of the meal before
Ratling [72]

Answer:

$56.41

Step-by-step explanation:

You have to divide the total bill by the sales tax and the multiply that number by 100. Then subtract that number from the total bill and that's how you get your answer.

4 0
3 years ago
I dont get it plz help
adelina 88 [10]

Answer:

its either b or d

Step-by-step explanation:

4 0
3 years ago
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If the discriminant of a quadratic equation is equal to -9, which statement describes the roots?
Mice21 [21]

ANSWER

No real roots.

The roots are complex or imaginary.

EXPLANATION

The quadratic equation

a {x}^{2}  + bx + c = 0

has discriminant,

D =  {b}^{2}  - 4ac

If the discriminant is less than zero , then the quadratic equation has no real roots.

The given discriminant is -9.

Since -9 is less than zero, it means the quadratic equation has complex or imaginary roots.

8 0
3 years ago
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