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vivado [14]
3 years ago
7

Write the negation of: If we lose electricity, then the data will be lost.

Mathematics
1 answer:
Aleks04 [339]3 years ago
5 0

Step-by-step explanation:

Consider the provided statement.

If we lose electricity, then the data will be lost.

We are need to write the negation of the above statement.

First divide the whole statement in two parts

Let us consider p = We lose electricity and q = The data will be lost.

The symbol use for negation is tilde \sim

\sim(p\rightarrow q)

p\wedge \sim q

Represent T for true and F for False.

The required table is shown below:

p           q           (p\wedge \sim q)

F            F                F

F            T                F

T            F                T

T            T                F

Hence the required table is shown above.

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Just some simple fraction problems, I am stuck on this though.
Zina [86]

Answer:

5 1/6 ÷ 4 2/3 = 31/28

3 3/4 ÷ 1 2/8 = 3

4 2/4 ÷ 2 1/4 = 2

5 2/5 ÷ 1 4/5 = 3

4 2/8 ÷ 3 2/4 = 17/4

3 3/9 ÷ 2 4/12 = 10/7

7 1/2 ÷ 3 3/5 = 25/12

6 2/8 ÷ 3 1/3 = 15/8

Explanation:

5 1/6 ÷ 4 2/3 = 31/6 ÷ 14/3 = (31/14) / (6/3) = (31/14) / 2 [when you divide by a certain number you multiply that number by the denominator] = 31/28

5 1/6 ÷ 4 2/3 = 31/6 ÷ 14/3 = 31/6 × 3/14

7 0
3 years ago
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4 0
3 years ago
Find the 15th term of the geometric sequence 7, -21, 63, ...7,−21,63,
Anastasy [175]

Answer:

not sure

Step-by-step explanation:

7 0
3 years ago
What are the solutions of the quadratic equation (x + 3)(x +3) = 49? Ax = -2 and x = -16 Bx = 2 and x = -10 Cx = 4 and x = -10 D
Ivahew [28]

Answer:

4 and -10

Step-by-step explanation:

\displaystyle (x + 3)(x +3) = 49 \\ x^2+3x+3x+9=49 \\ x^2 +6x+9=49 \\ x^2 + 6x + 9 - 49 = 0 \\x^2+6x-40=0 \\\\ \Delta=b^2-4ac \\ \Delta=6^2-4 \cdot 1 \cdot (-40) \\ \Delta=36+160 \\ \Delta=196 \\ \\ X_{1,2}=\frac{-b \pm \sqrt{\Delta} }{2a}  \\ \\ X_1=\frac{-b+\sqrt{\Delta} }{2a} = \frac{-6+14}{2} = \frac{8}{2}=4 \\ \\ X_2=\frac{-b-\sqrt{\Delta} }{2a}  = \frac{-6-14}{2}=\frac{-20}{2} = -10

4 0
3 years ago
What is the pattern 3, -6, 12, 4, 20
OLga [1]
Let's try addition
3-9=-6
-6+18=12
12-8=4
4+16=20
doesn't seem to be a pattern
try mulitpcation

3 times -2=-6
-6 times -2=12
12 times 1/3=4
4 times 5=20
can't see a pattern
dunno what the patttern is
unless you mistyped th equestio
3 0
3 years ago
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