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3 years ago

Help plz need it so so much

Mathematics

1 answer:

Zolol [24]3 years ago

6 0

Answer:

Step-by-step explanation:

The number line does not end at -2 and the solution should exclude 3 as it is a hollow circle instead of a filled one.

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What numbers are greater than 7 x 10^-4? Please help!

asambeis [7]

B 8x 10 ^-5 is the correct answer

3 0

4 years ago

Philip has $2,000 and spends $23.75 on supplies. He divides the remaining amount equally among his 8 employees. How much does ea

Harrizon [31]

Answer:

Step-by-step explanation:

5 0

3 years ago

What is the mode of this data set 55 78 43 39 78 61 75 50 43 78

Rom4ik [11]

Mode means MOST. Which number is displayed the most?

39, 43, 43, 50, 55, 61, 75, <u>78, 78, 78</u>

Answer: 78

Note: I placed the data set into numerical order because it will help you to easily find the mode and also the median (middle number).

5 0

3 years ago

4. How fast was a driver going if the car left skid marks that were 32 feet long on dry concrete? (The coefficient of friction i

Monica [59]

Answer:

$v_{o} \approx 31.247\,mph$

Step-by-step explanation:

The deceleration experimented by the car is the product of kinetic coefficient of friction and gravitational constant:

$a = \mu_{k}\cdot g$

$a = (1.02)\cdot \left(32.174\,\frac{ft}{s^{2}} \right)$

$a = 32.817\,\frac{ft}{s^{2}}$

The initial speed is computed from the following kinematic expression:

$v^{2} = v_{o}^{2} - 2\cdot a \cdot \Delta s$

$v_{o} = \sqrt{v^{2}+2\cdot a\cdot \Delta s}$

$v_{o} = \sqrt{\left(0\,\frac{ft}{s} \right)^{2}+2\cdot \left(32.817\,\frac{ft}{s^{2}} \right)\cdot (32\,ft)}$

$v_{o}\approx 45.829\,\frac{ft}{s}$

$v_{o} \approx 31.247\,mph$

8 0

3 years ago

The population of a town increased from 3500 in 2005 to 5600 in 2009. Find the absolute and relative (percent) increase.

Ket [755]

Answer:

Absolute increase in population will be 2100

And percentage increase will be 60 %

Step-by-step explanation:

We have given population in 2005 is 3500

And population in 2009 is 5600

So absolute increase in population = 5600-3500 = 2100

We have to find the percentage increase in population

So relative percentage increase in population will be $\frac{2100}{3500}\times 100=60$ %

So population will increase by 60 %

6 0

3 years ago