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kicyunya [14]
2 years ago
10

Is the following number negative, positive or neither? -6 1/2

Mathematics
1 answer:
Annette [7]2 years ago
6 0

Answer:

negative.

Step-by-step explanation:

what is half of -6?

=-3, negative.

You owe your friend 6 dollars, and you have 0 dollars.

Your friend told you: you only have to pay half the money

so, instead of owing 6 dollars, you owe 3 dollars, which will still be equal to -3 dollars from your wallet :)

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How many 9's are in 99
MrRissso [65]

Answer:

11 or 2

Step-by-step explanation:

11: You take 99/9 to see how many times 9 could go into 99, which would be 11.

2: You just look at the number and you see that there are 2 9s in 99.

-I hope this helps!-

-I didn't know which answer you were looking for so I put both!-

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4 0
3 years ago
Which value is included in the solution set for the inequality graphed one the number line?
Soloha48 [4]

<em>We can also graph inequalities on the number line. The following graph represents the inequality x≤2 . The dark line represents all the numbers that satisfy x≤2 . If we pick any number on the dark line and plug it in for x, the inequality will be true.</em>

6 0
2 years ago
A small metal bar, whose initial temperature was 10° C, is dropped into a large container of boiling water. How long will it tak
IgorC [24]

Answer

According to newton law of cooling

\dfrac{d T}{dt} = k (T - T_a)

and

T = Ce^{kt} + T_a

now At Ta = 100

T₀ = 10 °C

T₁ = 12° C

T(0) = Ce^{0} + T_a

10 = C + 100

C = -90

now,

12 = -90e^k + 100

e^k = \dfrac{88}{90}

k = ln{\dfrac{88}{90}}

at time equal to t

T(t) = 70

T(t) = -90 (\dfrac{88}{90})^t + 100

70 = -90(\dfrac{88}{90})^t + 100

(\dfrac{88}{90})^t = \dfrac{1}{3}

t\times ln(\dfrac{88}{90}) = ln(\dfrac{1}{3})

t = 48.88 s

hence, after 48.88 s the temperature of the body will be 70°C

b) time taken to reach 98°C

T(t) = -90 (\dfrac{88}{90})^t + 100

98 = -90(\dfrac{88}{90})^t + 100

(\dfrac{88}{90})^t = \dfrac{1}{45}

t\times ln(\dfrac{88}{90}) = ln(\dfrac{1}{45})

t = 390 s

hence, after 390 s the temperature of the body will be 98°C

5 0
2 years ago
PLEASE HELP ME, I REALLY NEED HELP
Anna11 [10]

Answer:

90

Step-by-step explanation:

8 0
2 years ago
4. Find PQ<br> N<br> Р<br> 5x + 16<br> S<br> R.<br> 9x - 32<br> Q
Ede4ka [16]

Answer on= 12

Step-by-step explanation:

3 0
3 years ago
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