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Lelu [443]
3 years ago
15

Answer this true or false question please:4x-1<2x+7 when x =1​

Mathematics
1 answer:
GalinKa [24]3 years ago
7 0

Answer:

true

Step-by-step explanation:

4(1) - 1 = 3

2(1) + 7 = 9

9 is greater than 3.

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The attractive electric force between point charges q and -2q has a magnitude of 2.2 N when the separation
swat32

Answer:

The Magnitude of charge = q = 15.47 micro coulomb  

Step-by-step explanation:

The attractive force between two points q and - 2 q = F = 2.2 Newton

The separation between two charges = 1.4 meters

Now from Coulomb's law = F = (k \frac{q1 q2}{r^{2}})  where k= 9 \times 10^{9} \frac{N m^{2}}{c^{2}}

So , 2.2 = 9 \times 10^{9} ( (\frac{(q) ( - 2q)}{1.4^{2}})

So , q ² = (\frac{0.479 \times 10^{-9}}{-2})

      For charge magnitude

   I.e q ² = 2.395 \times 10^{-10}

 so, q =  1.547 \times 10^{-5}

      q = 15.47 \times 10^{-6} c

Or,  q = 15.47 micro coulomb

Hence  the Magnitude of charge = q = 15.47 micro coulomb   Answer

4 0
4 years ago
Frosty rolled around the track at 4 laps in 10 minutes.
hoa [83]

Answer:

a. 2.5 min

b. 0.4 laps a min

c. 100 min or 1 hour and 40 min

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Write and evaluate the expression. Then, select the correct answer.
Pepsi [2]

Answer: 45+n; when n=1.1, the value is 46.1 is the answer

Step-by-step explanation:

I took the practice page already

4 0
3 years ago
Read 2 more answers
(need answers asap!)
LuckyWell [14K]

Hello! Don't worry! I will try to answer this as best as I can and as fast as I can. Sorry if the answer is wrong. I am still learning.

The earthworm length is longer than 6.0 cm because the worm needs to

be straightened.

The choice is true because the image clearly illustrates that the earthworm is screwed into a part of its body. To make a proper measurement the earthworm must be fully stretched and measured from the head to the extreme tip of the "tail"

Hope this helps you!

:).

3 0
2 years ago
In a carnival​ game, a person wagers​ $2 on the roll of two dice. if the total of the two dice is​ 2, 3,​ 4, 5, or 6 then the pe
Olin [163]

Answer: a loss of 4 cents

<u>Step-by-step explanation:</u>

The probability of rolling a sum of 2, 3, 4, 5, or 6 is \dfrac{15}{36} which earns $2.00

The probability of rolling a sum of 28, 9, 10, 11, or 12 is \dfrac{15}{36} which loses $2.00

The probability of rolling a sum of 7 is \dfrac{6}{36} which loses $0.25

\bigg(\dfrac{15}{36}\times \$2.00\bigg)+\bigg(\dfrac{15}{36}\times -\$2.00\bigg)+\bigg(\dfrac{6}{36}\times -\$0.25\bigg)=\boxed{-\$0.04}

6 0
3 years ago
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