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gizmo_the_mogwai [7]
4 years ago
14

PLZ HELP ASAP!!!!! I NEED IT BADLY!!!!!

Mathematics
1 answer:
Ludmilka [50]4 years ago
4 0
131/5 divided by 11/1
to divide by fractions, you multiply by the reciprocal and the reciprocal of 11/1 is 1/11...
131/5•1/11 and you just multiply across so the answer is every 131/55 miles. if you want it as a mixed number, it's 2 21/55
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Number 20. if a and b are integers and a > b, then l a l > l b l
raketka [301]

.   Answer: I am pretty sure sometimes

Step-by-step explanation: if a = 6 and B = - 7, if you put them l a l > | b |

It makes them both positive so sometimes is the most probable answer .

( Sorry if it’s wrong)

6 0
3 years ago
Read 2 more answers
A road has a 10% grade, meaning increasing 1 unit of rise to every 10 units of run.
finlep [7]

Answer:

Part a) The elevation of the road is 6\°

Part b) The rise is 0.2\ km

Step-by-step explanation:

Part a) What is the elevation of the road to the nearest degree?

Let

y-----> the rise of the road ( vertical distance)

x ----> the run of the road (horizontal distance)

we have

y/x=1/10

we know that

The ratio y/x is equal to the tangent of the angle of the elevation of the road

Let

\theta ---->  angle of the elevation of the road

tan(\theta)=y/x

tan(\theta)=1/10

\theta=arctan(1/10)=6\°

Part b)  If the road is two km long, how much does it rise?

using proportion

1/10=y/2

y=2/10=0.2\ km

3 0
3 years ago
WHich choice is equivalent to the expression below? √-125
olasank [31]

Answer:

Final simplified form is 5\sqrt{5}i

Step-by-step explanation:

We have been given an expression \sqrt{-125}

Now we need to simplify \sqrt{-125} and check which choice matches with simplified form of \sqrt{-125}.

You missed to provide the choices but still we simplify that.

\sqrt{-125}

=\sqrt{-5*5*5}

=5\sqrt{-5}

When there is negative sign inside square root then we replace that by "i" iota.

=5\sqrt{5}i

Hence final simplified form is 5\sqrt{5}i

8 0
4 years ago
9-19 can somebody explain how to do one of them (not the answer) but how to work them out and the answer
Jet001 [13]

Answer: I’ll give you an example of how to do it by solving number 9 - h^2 + 8h + 16

Step-by-step explanation:

Step 1: Find two numbers that when you multiply them it gives you the first term’s coefficient multiplied by the last term’s coefficient (1x16 = 16) and when you add them it gives you the second term’s coefficient (8). The numbers in this case are positive 4 and positive 4.

Step 2: Create two parenthesis with the letter accompanied by the numbers. (h + 4)•(h+4). And that’s how you factor.

In case the first term is elevated to the third you will have to take out GCF (greatest common factor) first. If the numbers are too high like in the exercise number 15 you can also take out GCF and it will make it a lot easier to solve. Sometimes what you write on the parenthesis in the step 2 can be simplified, if that’s so then you would have to do it in order to get the correct answer.

Hope this helps you.

3 0
3 years ago
Read 2 more answers
What is the area of a circle whose radius is 20 meters?<br> PLEASE HELP
dybincka [34]

Answer:

area : pi*r^2

pi * 20^2

400pi m^2

3 0
3 years ago
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