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3 years ago

5

The width of a rectangle is 4 less than half the lenght. If L represents the length, which equation could be used to find the wi

dth, w?

1 answer:

adell [148]3 years ago

5 0

Answer:

Step-by-step explanation:

Find the midpoint of a segment. It is geometry please help.

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Right triangles abc and dbc with right angle c are given below. If cos(a)=15,ab=12 and cd=2, find the length of bd.

dmitriy555 [2]

see the attached figure to better understand the problem

we have that

$cos(A)=\frac{1}{5} \\ AB=12\ units\\ CD=2\ units$

Step 1

<u>Find the value of AC</u>

we know that

in the right triangle ABC

$cos (A)=(AC/AB)\\AC=AB*cos(A)$

substitute the values in the formula

$AC=12*(1/5)\\ AC=2.4\ units$

Step 2

<u>Find the value of BC</u>

we know that

in the right triangle ABC

Applying the Pythagorean Theorem

$AB^{2} =AC^{2}+BC^{2}\\ BC^{2}=AB^{2} -AC^{2}$

substitute the values

$BC^{2}=12^{2} -2.4^{2}\\BC^{2}= 138.24\\ BC=11.76\ units$

Step 3

<u>Find the value of BD</u>

we know that

in the right triangle BCD

Applying the Pythagorean Theorem

$BD^{2} =DC^{2}+BC^{2}$

substitute the values

$BD^{2} =2^{2}+11.76^{2}$

$BD=11.93\ units$

therefore

<u>the answer is</u>

the length of BD is 11.93 units

8 0

3 years ago

Read 2 more answers

£10 a hour , 37.5 hours a week, 52 weeks in a year

Vesna [10]

<span>£19,500
10*37.5*52 =</span>£19,500

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3 years ago

The area of a square garden is 1/36 mi 2 how long is each side<br><br>

Vitek1552 [10]

Answer:

1/6 meters

Step-by-step explanation:

Let the side length be x.

Then the area of the square = x^2

∴ x^2 = 1/36

√(x^2) = √(1^2 / 6^2)

x = 1/6

Therefore, the side length is 1/6 meters.

Hope it helped you!!!

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abruzzese [7]

Answer:

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Step-by-step explanation:

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I will give brainiest to whoever answers correctly !!

uysha [10]

I don’t know if this correct or not but I think it’s 1,666

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