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densk [106]
3 years ago
7

I need help with this math problem

Mathematics
2 answers:
slega [8]3 years ago
8 0

4 hours

Because 12 times by 3 is 36 so you times 1 hr and 20 mins by 3

1 hr 20+1 hr 20+ 1hr 20 = 4 hrs


Anika [276]3 years ago
5 0

She did 12 questions, and needs to do 36.


36 / 12 = 3, so it will take 3 times as long.

1 hour 20 minutes times 3 = 4 hours.


It will take her 4 hours.

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Find the equation of the straight line that passes through points (-1; -2) and (3; 4)
Leya [2.2K]
Y=mx+b is our base equation

m=slope, so let's find that first:
m= change in y/change in x
So between the points (-1,-2) and (3,4),
The y values, -2 and 4, have a difference of 6. The x values, -1 and 3, have a difference of 4. This makes our slope 6/4 (or 3/2 simplified)

Now our equation is
Y=3/2x + b

We still need to find b
To find b, we can substitute a point given to us. Let's use (3,4) just to avoid negatives.

4=3/2(3) + b
Multiply
4=9/2 + b
Subtract 9/2 from both sides
-1/2=b

Now let's put it all back together!

Y=3/2x-1/2 Is the answer.

I hope this Helps!


6 0
2 years ago
Cory earns $9 per hour working at the local library. If she works 5 hours on Saturday how much money will she earn?
Rzqust [24]
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3 years ago
The function g(x) is a transformation of the quadratic parent function, f(x)=x2. What function is g(x)?
larisa86 [58]

Answer:

D.

Step-by-step explanation:

Your graph of f(x)= x^2 is the parent function. What you need to know for this graph what the stretch or compression is and what the flip is. When you flip somehting over the x-axis, which is g(x), your x^2 is negative. Also, since your graph gets skinnier, the number before the x would be a whole number, with no fractions. The only answer that fulfills this is answer choice D.

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liberstina [14]
The answer is 3/8 
hope it helps
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7 0
3 years ago
Read 2 more answers
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timama [110]

Answer:

0.006 m

Step-by-step explanation:

There are 1,000 millimeters in one meter.

6/1,000= 0.006 m

3 0
3 years ago
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