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Andre45 [30]
3 years ago
12

Which expression is equal to 5√20 -3√45 -√5 11√5 √5 -11√5

Mathematics
2 answers:
iVinArrow [24]3 years ago
4 0
The second one which you would solve 5/20and -3/45
ExtremeBDS [4]3 years ago
3 0

Answer:

√ 5

Step-by-step explanation:

there was a question just like this, and I got it wrong... it was 11√ ? and it corrected it to just √ ? so... xD ig this one.

You might be interested in
PLEASEEEE HELPPP with both of them if you can!
Jet001 [13]

Answer:

Tenacious tennis: y=5x+120

Totally Tennis: 8x

Toys r us: y=20x

Lego club: y=17x+36

Step-by-step explanation:

y=cost x= tennis court usage charge

Tenacious tennis: y=5x+120

Totally Tennis: 8x

8.)

y=cost x=lego set

Toys r us: y=20x

Lego club: y=17x+36

3 0
3 years ago
There are three numbers a, b, c, where a > b and b >c. Describe the positions of the numbers on a number line.
AfilCa [17]
In maths, the “>” sign means “greater than”, or “bigger than.” If we say A > B, that means (in English) “A is bigger than B.”
So, if A > B and B > C:
A is bigger than B, and B is bigger than C.

So the smallest would be C, since both A and B are bigger. Next is B, and biggest is A.

That is the order they would be in a number line: C - B - A




6 0
3 years ago
Can anybody figure this question out cause I can't figure it out​.
Kazeer [188]

Answer:

there is no change because it is a circle

4 0
2 years ago
1) The two triangles are congruent. Find the missing side lengths and the missing angle measures.
gregori [183]

<u>Answers:</u>


Two <u>triangles are congruent</u> if they have the <u>same sides</u> and the <u>same size</u>.

In other words: they have the same shape and size, regardless of their position or orientation.



If we want to verify if two triangles are congruent, they must fulfill some conditions:


a) Two triangles are congruent if their three sides are respectively equal



b) Two triangles are congruent if two of their sides and the angle between them are respectively of equal length.



c) Two triangles are congruent if they have a congruent side and the angles with vertex at the ends of that side are also congruent.  


d) Two triangles are congruent if they have two sides respectively congruent and the angles opposite the greater of the sides are also congruent



<h2>According to these criteria, it is not necessary to verify the congruence of the three sides and three angles of each triangle </h2>

Now, knowing these criteria, let’s answer the questions:



1) Here both triangles are<u> congruent</u> and are <u>Right Triangles</u> (have a right angle or a 90\º angle), as well.



This means angle u=90\º and according to the <u>criterion b</u> listed above, the angle t=35\º and angle v=55\º.



This can be proven by the rule that states the sum of the three interior angles of a triangle is 180\º.



Then, according <u>criterion a</u>, w=10.4m and s=6m.



<u>This can be proven by the use of </u><u>two trigonometric functions,</u>  sine and cosine:


<h2>sin(35\º)=\frac{6m}{w}    (1) </h2>

w=\frac{6m}{sin(35\º)}=10.4m    




Where  6m is the <u>Opposite side</u> to the 35\º angle and w is the <u>hypotenuse</u>.




<h2>cos(55\º)=\frac{s}{10.4m}    (2) </h2>

s=cos(55\º)(10.4m)=5.9m≅6m   




Where  s is the <u>Adjacent side</u> to the 55\º angle and 10.4m is the <u>hypotenuse</u>.



<h2>Therefore, the answer is B: </h2>

s=6m, t=35\º, u=90\º, v=55\º, w=10.4m



2) According to the second figure shown, both triangles are congruent and fulfill the four criteria described above.

Therefore, the answer is:


<h2>CBA≅MPN</h2>

3) “Knowing that line segment AB is the same length as line segment CD is enough to prove that triangles ABD and BCD are congruent”



This statement is <u>True</u>, because <u>both triangles share the line segment BD</u>.

<h2>This means <u>they have two equal sides</u>, and according to <u>criterion b</u> they are congruent  </h2>




6 0
3 years ago
Explain how to estimate 498÷12
swat32
Round both numbers! :)
498 would round to the nearest hundred, 500 and 12 would round to the nearest ten, 10
You can then divide 500 and 10 which gets you 50.
Hope this helped :)
6 0
3 years ago
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