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3 years ago

Please help plzzzzzzzzzzzzzzzzzzzz

Mathematics

2 answers:

zepelin [54]3 years ago

5 0

Answer: C,D are true

Step-by-step explanation:

navik [9.2K]3 years ago

5 0

Answer:

Step-by-step explanation:

C and D are both true the rest are false

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Given: m

Nutka1998 [239]

Answer:

$m\angle MEJ=25^{\circ}.$

Step-by-step explanation:

The arcs LY, KM, KL and MJ together form the full revolution angle, thus

$4x+50^{\circ}+6x+x+10^{\circ}+4x=360^{\circ},\\ \\15x=300^{\circ},\\ \\x=20^{\circ}.$

Note that

$m\angle MOJ=4x=80^{\circ},$

then

$m\angle MLJ=\dfrac{1}{2}\cdot 80^{\circ}=40^{\circ}.$

So,

$m\angle ELM=180^{\circ}-40^{\circ}=140^{\circ}.$

Also

$m\angle LOK=30^{\circ},$

$m\angle KML=\dfrac{1}{2}\cdot 30^{\circ}=15^{\circ}.$

In triangle EML,

$m\angle MEL+m\angle EML+m\angle ELM=180^{\circ},\\ \\m\angle MEL=180^{\circ}-15^{\circ}-140^{\circ}=25^{\circ}.$

Thus, $m\angle MEJ=25^{\circ}.$

7 0

3 years ago

Find the right triangle

Sidana [21]

Answer:

i think it is E

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Find the length of diagonal AV in a three dimensional figure.

coldgirl [10]

Although I'm going to answer this question, I have to point out that this problem is NOT stated clearly. The problem being we don't know if angle AMV is a right angle.

But I'm assuming it is and thus we need to use the Pythagorean theorem.

AV= $\sqrt{5^2+12^2}$

AV=13

Therefore answer is C. :D

8 0

3 years ago

How does 9+10 equal 21?

Marizza181 [45]

9 + 10 does <u>not</u> equal 21.

If you add 9 and 10, you will get 19.

If you are referring to the meme, ok.

6 0

3 years ago

hexagon is equal to the area of an equilateral triangle whose perimeter is 36 inches. Find the length of a side of the regular h

Vikentia [17]

$Perimter\ of\ equilateral\ triangle\ =36\\ a- \ side\ of\ triangle\\ 36=3a\ |:3\\ a=12\\\\ Area\ of\ equilateral\ triangle:\\ A=\frac{a^2\sqrt{3}}{4}\\ A=\frac{12^2\sqrt{3}}{4}\\ A=\frac{144\sqrt{3}}{4}=36\sqrt3 \\\\ Hegagon\ can\ be\ divided\ into\ 6\ equilateral\ small\ triangles.\\Area\ of\ one\ of\ them: A_s=\frac{A}{6}=\frac{36\sqrt3}{6}=6\sqrt{3}\\ s-side\ of\ equilateral\ =\ side\ of\ small\ triangle\\ A_s=\frac{s^2\sqrt{3}}{4}=6\sqrt{3}\ |*4 \\ s^2\sqrt3=24\sqrt3\ |\sqrt3\\ s^2=24\\ s=\sqrt{24}$ $\sqrt{24}=\sqrt{4*6}=2\sqrt6\\\\
Side\ of\ hexagon\ equals\ 2\sqrt6\ inches$

7 0

3 years ago

Read 2 more answers