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3 years ago

A rectangle has a perimeter of 71.8 yards and a height of 3.3 yards. What is the length of the base?

2 answers:

8 0

32.6 I think. I took the height, multiplied it by 2 (because there are to sides that is that length) and then subtracted it by 71.8 to get 65.2, lastly I divided it by 2 for the same reason (there are two sides the same length).

Studentka2010 [4]3 years ago

7 0

The length of the base is 32.6

3.3 + 3.3 = 6.6

Subtract 6.6 from 71.8 : 65.2

Divide that by 2 : 32.6

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Find the value of W and X

notka56 [123]

Answer:

W = 13.33

X = 13.10

Step-by-step explanation:

You use Trig

S = O/H. C = A/H. T = O/A

For W we have to find Adjacent using Opposite, so we're going to use Tangent

Now we have Tan = O/A and rearrange this to find Adjacent

Tan = O/A --> ATan = O --> A = O/Tan

then we plug in A = 12/Tan(42°) which gives us 13.3273.... I usually round up to the 2nd decimal, so 13.33

To find X we do the same thing with a little bit of additional work

Since we already did the work for the last one, we can just skip a few of those steps

A = 12/Tan(27°) which gives us 26.4322..... or 26.43

But that gives us the whole bottom bit, which is X+W, so just subtract the W

26.43 - 13.33 = 13.10

Sorry if I'm bad at simplifying my wording

I hope this is correct, my math seems right, but the picture is not to scale

6 0

3 years ago

Read 2 more answers

What is the product 3x+2+5X

julia-pushkina [17]

Answer:

8x+2

Step-by-step explanation:

Combine Like Terms:

=3x+2+5x

=(3x+5x)+(2)

=8x+2

Hope this helps

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3 years ago

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Help!! <br><br> find the area. round to the nearest hundredth if necessary

Yuri [45]

Answer:

triangle = (11×16)/2 =88

square = 16× 19 = 304

add them up =392 in^2

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2 years ago

Una persona camina 7 kilómetros hacia el norte, después 3 kilómetros hacia el este y, luego, 3 kilómetros hacia el sur. ¿A qué d

qaws [65]

Answer:

La persona está a 5 kilómetros con respecto al punto de partida.

Step-by-step explanation:

Considérese que la dirección norte coincide con el semieje +y y que la dirección este coincide con el semieje +x. A continuación, obtenemos las formas vectoriales equivalentes de cada afirmación:

(i) Una persona camina 7 kilómetros hacia el norte:

$\vec r_{1} = 7\,\hat{j}\,[km]$

(ii) Después 3 kilómetros hacia el este:

$\vec r_{2} = 3\,\hat{i}\,[km]$

(iii) Y luego, 3 kilómetros hacia el sur:

$\vec r_{3} = -3\,\hat{j}\,[km]$

El vector resultante de desplazamiento se construye a partir de la siguiente suma de vectores:

$\vec R = \vec r_{1}+\vec r_{2} + \vec r_{3}$ (1)

$\vec R = 3\,\hat{i} + 4\,\hat{j}\,[km]$

Asumiendo que la distancia coincide con el desplazamiento resultante, calculamos la distancia con respecto al punto de partida mediante el Teorema de Pitágoras:

$\|\vec R\| = \sqrt{3^{2}+4^{2}}$