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Sav [38]
2 years ago
5

What is -7v(v+7)-2(1+4v)

Mathematics
1 answer:
son4ous [18]2 years ago
5 0

Answer:

-7v² - 57v - 2

Step-by-step explanation:

-7v² - 49v - 2 - 8v

-7v² - 57v - 2

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Is (-5,-5) a soulution of y is greater then or equal to y>-2x+4
Snowcat [4.5K]

Answer:

No

Step-by-step explanation:

To determine if (- 5, - 5) is a solution

Substitute x = - 5 into the inequality and compare answer to y

- 2(- 5) + 4 = 10 + 4 = 14 > - 5 ← the y- coordinate

Thus (- 5, - 5) is not a solution to the inequality

7 0
3 years ago
Read 2 more answers
if f(1) = -5 and f(n) = f(n-1) +7, find the first four terms and the common difference of the sequence
Alex_Xolod [135]

Answer:

- 5, 2, 9, 16 and d = + 7

Step-by-step explanation:

to obtain the first four terms substitute n = 2, 3, 4 into the recursive formula

f(1) = - 5 ← given

f(2) = f(1) + 7 = - 5 + 7 = 2

f(3) = f(2) + 7 = 2 + 7 = 9

f(4) = f(3) + 7 = 9 + 7 = 16

common difference d = 16 - 9 = 9 - 2 = 2 - (- 5) = 7



6 0
2 years ago
Brian can iron 3 shirts in 5 minutes. If Brian irons at a constant rate, how many shirts can he iron in 30 minutes? WILL GIVE BR
never [62]

Answer:

18

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
you eat $0.85 for every cup of hot chocolate you sell. How many cups do you need to sell to earn $55.25
Alina [70]

0.85$ for 1 cups

1$ for 1/0.85 cups

55.25$ for [1/0.85]*55.25 = 55.25/0.85 = 65 cups


5 0
3 years ago
Write 2^40 as an exponent with a base of: a 2^2; b 2^5; c 2^8; 2^10
MA_775_DIABLO [31]

Answer:

Step-by-step explanation:

Substitute the value of the variable into the expression and simplify.

Exact Form:  a = 6, 2 3

Decimal Form: a = 6 , 0. ¯ 6

6 0
3 years ago
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