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kow [346]
3 years ago
6

Help?????????????????​

Mathematics
1 answer:
mr Goodwill [35]3 years ago
5 0

Answer:

1)-\sqrt{2.25}  = -  \sqrt{225 \times  {10}^{ - 2} }   \\ =  -\sqrt{225}  \times  \sqrt{ {10}^{ - 2} }  \\  =- 15 \times  {10}^{ - 1}  =- 1.5  =  -\frac{3}{2} \\ 2) -\frac{3}{2}  = -1.5 \\ thank \: you

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In order to remove water from a flooded basement, two pumps, each rated at 40 gallons per minute, are used. After half an hour,
Scrat [10]

Answer:

3600 gallons of water was removed from the basement.

Step-by-step explanation:

Given:

Rate of each pump = 40 gallons/min

We need to find find the number of gallons of water removed from the basement.

Solution:

Now Given:

After half an hour, the one pump burns out.

Now we know that;

1 hour = 60 mins

\frac12 hour = \frac{60}{2}=30\ mins

Now for 30 mins both the pumps were working and removing the water.

So we can say that;

Water remove for first 30 mins = 40\times2\times30=2400\ gallons

Also Given:

the second pump finishes removing the water half an hour later.

So we can say that;

Water removed for next 30 mins = 40\times 30\times1 =1200\ gallons

Now we can say that;

Total water removed from the basement is equal to sum of Water remove for first 30 mins and Water removed for next 30 mins .

framing in equation form we get;

Total water removed from the basement = 2400+1200=3600\ gallons.

Hence 3600 gallons of water was removed from the basement.

6 0
3 years ago
7th grade math answer ASAP. answer all 6 questions and if you get all of them right i will give brainliest and thx and 5 star.
Hitman42 [59]
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6 0
3 years ago
Find the measures of the interior
Ainat [17]

Answer:

Angle 1 =  108°

Angle 2 =  72°

Angle 3 =  120°

Angle 4 =  96°

Angle 5 =  144°

Step-by-step explanation:

We need to find the measures of the interior  angles in a pentagon if the measure  of each consecutive angle is in the  ratio 9:6:10:8:12.

Let x be the common ratio

So, we can write:

Angle 1 = 9x

Angle 2 = 6x

Angle 3 = 10x

Angle 4 = 8x

Angle 5 = 12x

We know that the <em>sum of all angles of pentagon = 540</em>

So, adding all angles and equal them to 540, we can find value of x

9x+6x+10x+8x+12x=540\\45x=540\\x=\frac{540}{45}\\x=12

So, we get the value of x: x=12

Now, calculating the angles by putting x=12:

Angle 1 = 9x = 9(12) = 108°

Angle 2 = 6x = 6(12) = 72°

Angle 3 = 10x = 10(12) = 120°

Angle 4 = 8x = 8(12) = 96°

Angle 5 = 12x= 12(12) = 144°

6 0
3 years ago
Masco Industries has 285,000 total employees. Of those employees, 85,500 telecommute. What percent of the company’s total employ
frosja888 [35]

Answer:

30%  of the company’s total employees telecommute

Step-by-step explanation:

Masco Industries has 285,000 total employees. Of those employees, 85,500 telecommute.

To find the percentage of company’s total employees telecommute

We divide the number of employees telecommute by total employees

Then we multiply by 100 to get percentage

Percentage = \frac{number \ of  \ telecommute \ employess}{total \ employees} * 100

Percentage = \frac{85500}{285000} * 100

Percentage = 0.3 * 100 = 30%

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3 years ago
Help I need this done ASAP anyone know how to solve this
ludmilkaskok [199]
Equation~ 5b + (2b - 4) + (3b -6)= 180.
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2 years ago
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