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3 years ago

!!HELP!!

Mathematics

2 answers:

Anna11 [10]3 years ago

7 0

Answer:

Just leave it and tell your teacher about it, Desmos did that to me before as well and she told me just to leave it

Setler [38]3 years ago

7 0

The equation should be E = 500d i believe and yes it is proportional

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Find the missing sides.

love history [14]

Answer:

Part 3)

$x=6\ units$

$y=3\ units$

Part 4) $x=18\sqrt{2}\ units$

Step-by-step explanation:

Part 3)

Find the value of x

In the right triangle of the figure we know that

The cosine of angle of 30 degrees is equal to the adjacent side to angle of 30 degrees divide by the hypotenuse

$cos(30\°)=\frac{3\sqrt{3}}{x}$

and remember that

$cos(30\°)=\frac{\sqrt{3}}{2}$

substitute

$\frac{\sqrt{3}}{2}=\frac{3\sqrt{3}}{x}$

Simplify

$x=(2*3)=6\ units$

Find the value of y

In the right triangle of the figure we know that

The sine of angle of 30 degrees is equal to the opposite side to angle of 30 degrees divide by the hypotenuse

$sin(30\°)=\frac{y}{x}$

and remember that

$sin(30\°)=\frac{1}{2}$

substitute

$\frac{1}{2}=\frac{y}{6}$

$y=6/2=3\ units$

Part 4) Find the value of x

Applying the Pythagoras Theorem

$x^{2} =18^{2} +18^{2} \\ \\x^{2} = 324+324\\ \\x^{2}=648\\ \\x=\sqrt{648}\ units$

Simplify

$x=18\sqrt{2}\ units$

6 0

3 years ago

There are 576 boys and 448 girls in a school that are to be divided into equal sections of either boys or girls alone. The total

scZoUnD [109]

The total numbers of sections are 16.

Step-by-step explanation:

Given:

Number of boys in school = 576

Number of girls in school = 448

To find: Total Number of sections such that each section has either boys or girls.

Height Common Factor ( HCF ) of both number gives the number of students in a section.

HCF of 576 and 448

576 = 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3

448 = 2 × 2 × 2 × 2 × 2 × 2 × 7

HCF = 2 × 2 × 2 × 2 × 2 × 2 = 64

Number of sections of Boys = 576/64 = 9

Number of sections of girls 448/64 = 7

Total Number of sections = 9 + 7 = 16

Therefore, The total numbers of sections are 16.

6 0

4 years ago

ayuda porfavor cuanto es h+3cm=? y cuanto es b+4cm=? y cual seria el resustado de las dos calculacion

katrin [286]

GOOD MORNING,

HAVE A GREAT DAY AHEAD

4 0

3 years ago

Does this polygon have point symmetry?

Yuliya22 [10]

I’m pretty sure it’s yes.

4 0

4 years ago

The 1984 movie footloose made $8,556,965 in its opening weekend. The 2011 remake of footloose made $15,556,113 in its opening we

mezya [45]

Answer:

absolute change: $6,999,148
relative change: 81.79%

Step-by-step explanation:

The absolute change is the difference between the earnings numbers:

$15,556,113 -8,556,965 = $6,999,148

The relative change is the ratio of this difference to the original amount:

$6,999,148/$8,556,965 × 100% ≈ 81.794748% ≈ 81.79%

6 0

3 years ago