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Leto [7]
3 years ago
14

Math question please help if you get this right I will mark you as a brainliest

Mathematics
1 answer:
zhenek [66]3 years ago
5 0

Cosine Rule again:-

cos A = (9^2 - 6^2 - 14^2) / (-2*6*14)

= 0.8988

m < A = 26 degrees

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I need help with this problem 5/6 divided by 1/4 please and thank you
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Answer:

3 1/3.

Step-by-step explanation:

Find the LCD multiply, and that's how tou get your answer

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What is the simplified form of the following expression? (n5)(n2)
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In exponent multiplication, When the bases are the same you ADD the power so it is n^7
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What is the value of -4D^2+15D^2÷5 for D=1
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se necesita llenar un galon de agua,en 2 litros se tarda 30 minutos.cuantos litros me hacen falta para completar el galon y cual
mariarad [96]

Answer: 1.78 L are needed to complete the gallon and it will take 29.66 min to completely fill it

Step-by-step explanation:

The question in english is:

A gallon of water needs to be filled, in 2 liters it takes 30 minutes. How many liters do I need to complete the gallon and what is the time it takes me to fill it?

We know 1 gallon is equal to 3.78 liters:

1 gal=3.78 L

In addition, we are told you have filled the gallon with 2 L at a rate of \frac{2 L}{30 min}=0.06 L/min.

So, if we want to know how many liters are left to completely fill the gallon, we have to sbstract the 2 L to the total amount of a gallon:

3.78 L-2 L=1.78 L This is the amount you need to complete the gallon

On the other hand, the rate is defined as:

rate=\frac{Liters}{time}

Isolating time:

time=\frac{Liters}{rate}

Then, if we input the 1.78 L we need to fill the gallon we will have the time:

time=\frac{1.78 L}{0.06 L/min}

time=29.66 min This is the time you need to fill the gallon

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3 years ago
Traingle A' B' C' is the image of triangle ABC under a dilation. What is the scale factor of the dilation? ​
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We need an image to answer the question.
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