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vekshin1
3 years ago
13

Answer my question and i will mark you as brainliest its that easy, trust me i promise

Mathematics
2 answers:
Lesechka [4]3 years ago
7 0

Answer:

Hope that help the answer is 300

Step-by-step explanation he drives for 3 hours at a rate of 80 km per hour, multiply:

Now we need to find how far he goes in 45 minutes. There are 60 minutes in an hour, so write and simplify:

45 is three quarters of an hour, so multiply that by 80 km per hour:

Add the distances together:

At a rate of 80 km per hours, in 3 hours and 45 minutes, Tim drives 300 km.

Finito.

R

Vedmedyk [2.9K]3 years ago
4 0

Answer:

300 km

Step-by-step explanation:

If he drives for 3 hours at a rate of 80 km per hour, multiply:

80*3=240

Now we need to find how far he goes in 45 minutes. There are 60 minutes in an hour, so write and simplify:

\frac{45}{60}=\frac{3}{4}

45 is three quarters of an hour, so multiply that by 80 km per hour:

\frac{3}{4}*80\\\\\frac{3*80}{4}\\\\  \frac{240}{4} =60

Add the distances together:

60+240=300

At a rate of 80 km per hours, in 3 hours and 45 minutes, Tim drives 300 km.

<em>Finito.</em>

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Lamar is solving the equation x2−12x=−6 by completing the square. Which shows Lamar's next step and the solution to the equation
Levart [38]
Completing the square is a process to find the solutions, or the x-values, to a quadratic equation. This method can only work if it is in the format: x^2 + bx = c
In this equation, the b value is -12 and the c value is -6. The process for completing the square goes like this:

x^2 + bx + (b/2)^2 = c + (b/2)^2

Now let’s solve the equation above using this method.

Step 1: x^2 - 12x + (-12/2)^2 = -6 + (-12/2)^2

Step 2: x^2 - 12x + (-6)^2 = -6 + (-6)^2

Step 3: x^2 - 12x + 36 = -6 + 36

Step 4: x^2 - 12x + 36 = 30

Now, to factor it. After doing the process until now, the left side of the equation can ALWAYS be in the format: (x + a)^2

Step 5: x^2 - 12x + 36 can be factored in this format as (x - 6)^2

Step 6: (x - 6)^2 = 30

Step 7: x - 6 = √30

Step 8: x = 6 ±√30

4 0
2 years ago
Hypotheses: p=.5 vs p NE .5 ; Sample data: p=28/40= .70 with n=40 Round the p-value to three decimal places.
jeka57 [31]

Answer:

hahahahahaha yes hnjoo

7 0
3 years ago
5(2f+3)+7. please simplify
Sergio [31]
Hi there!

5(2f+3)+7
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3 0
3 years ago
Read 2 more answers
Jill has a photograph that is 4 inches wide by 6 inches high. If she enlarges it so that the width is 12
Nadya [2.5K]

Answer:

The inches in height will be 18 inches.

Step-by-step explanation:

Okay so we know that the original width is 4 inches and she enlarged that to 12 inches

So what we first have to do is find out how much did the photograph "grow" per se. To find this we have to divide 12 by 4. 12 divided by 4 = 3.

So, the width of the photograph grew "times 3" inches

Now whatever you do to the width you have to do to the height. In this case, what is "3 times" 6 (which is the height). 3 times 6 = 18 inches

So in simpler words 12 divided 4 = 3 x 6 = 18 inches

The inches in height will be 18 inches.

Jill has a square with a width of 12 inches, and a height of 18 inches.

Have a wonderful day!

5 0
2 years ago
Some help would be greatly appreciated
marusya05 [52]
I think it might be the second option
6 0
3 years ago
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