1 year ago

4

Mathematics

1 answer:

scZoUnD [109]1 year ago

3 0

Answer:

density=mass/volume:514g/500cm cubic

=1.028g/cubic centimeters

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Question 6 of 15

umka2103 [35]

Answer:

$LE=5\ units$

Step-by-step explanation:

we know that

In a rectangle, the two diagonals are congruent and each diagonal bisects the other

$LN=2KE$ ----> equation A

$KE=LE$ -----> equation B

step 1

Find the value of x

solve equation A

$LN=2KE$

substitute the given values

$(2x+2)=2(3x-7)$

solve for x

$2x+2=6x-14\\6x-2x=2+14\\4x=16\\x=4$

step 2

Find the value of KE

$KE=3x-7$

substitute the value of x

$KE=3(4)-7=5\ units$

Remember that

$KE=LE$ -----> by each diagonal bisects the other

therefore

$LE=5\ units$

8 0

2 years ago

Find the value of the trigonometric ratio. Simplify the ratio if possible.

sweet [91]

Step-by-step explanation:

Given that,

BC = 8

Ac = 15

We can find AB using the pythagoas theorem.

$AB=\sqrt{AC^2+BC^2}\\\\=\sqrt{15^2+8^2}\\\\AB=17$

We know that,

$\cos\theta=\dfrac{B}{H}$ , B is base and H is Hypotenuse

$\cosB=\dfrac{8}{17}$

Hence, this is the required solution.

3 0

2 years ago

The solutions for cos^2 x - cos 2x =0, over the domain 0 < x < 2π are

Reika [66]

D because it helps better and explains better and makes most sense

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2 years ago

Help please!

wlad13 [49]

Answer:

none of these, it should be 25%

Step-by-step explanation:

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2 if x = 137,2° and sin(x-y) Determine the numerical value of: cos y.tanx y = 114,99

Amanda [17]

Answer:

....................

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