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alexandr402 [8]
3 years ago
15

This is urgent PLEASE help me

Mathematics
1 answer:
allsm [11]3 years ago
5 0

Answer:

at -6

Step-by-step explanation:

hope that help

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If a → b is true, then ~a → b is also true.
Rasek [7]

Answer:

False

Step-by-step explanation:

To determine whether the statemaent "If a\Rightarrow b is true, then \neg a\Rightarrow b is also true" holds, you can form the truth table:

\begin{array}{ccccc}a&b&a\Rightarrow b&\neg a&\neg a\Rightarrow b\\1&1&1&0&1\\1&0&0&0&1\\0&1&1&1&1\\0&0&1&1&0\end{array}

When the result of the column a\Rightarrow b takes value 1 (true), the result of the column  \neg a\Rightarrow b is not always 1, then the statement is false.

7 0
3 years ago
t takes Franklin 14 hours to make a 200-square-foot cement patio. It takes Scott 10 hours to make the same size patio. Which equ
Tasya [4]
The efficiency of Franklin: 200/14 ft^2/hr

Scott: 200/10 ft^2/hr

So together: 200 / (200/14 + 200/10) = 5.83 hours
7 0
2 years ago
12c + 12 (3/4c) + 12 (1/2c) shows the total cost for buying 3 phones that each cost c dollars per month for 12 months.
alisha [4.7K]

Answer:

c(12 + 9 + 6)

12(2.25c)

Step-by-step explanation:

12c + 12 (3/4c) + 12 (1/2c)

12(1c) + 12(3/4c) + 12 (1/2c)

12(c + 3/4c + 1/2c)

12(2 1/4c)

12(2.25c)

Or

12c + 12 (3/4c) + 12 (1/2c)

12c + 9c + 6c

c(12 + 9 + 6)

6 0
2 years ago
The factors of the quadratic function g(x) are (5x – 1) and (x + 4). What are the solutions to the equation g(x) = 0?
Cerrena [4.2K]

Answer:

The solutions to the equation are x = \frac{1}{5} and x = -4

Step-by-step explanation:

The factors of the quadratic function g(x) are (5x – 1) and (x + 4).

This means that:

g(x) = 0

(5x - 1)(x + 4) = 0

So

5x - 1 = 0

5x = 1

x = \frac{1}{5}

And

x + 4 = 0

x = -4

The solutions to the equation are x = \frac{1}{5} and x = -4

7 0
3 years ago
Amy is growing basil. On February 1st her plant was 5 inches high. A week later, the plant’s height became 9 inches high. By wha
vladimir1956 [14]
(9-5/5)*100= (4/5)*100 = 80% ( new height- original height /original height )  *100 the plant grew 80%
4 0
3 years ago
Read 2 more answers
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