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3 years ago

What is mZLKB? A 65° K # # B L

Mathematics

1 answer:

Andrej [43]3 years ago

7 0

Answer:

Step-by-step explanation:

I got it right on my test!

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What is 168 divided by 7

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168 put in 7 different spots = 24 pieces in each spot :)<span />

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3 years ago

The graph of F(x), shown below, has the same shape as the graph of G(x) = 3x2, but it is shifted down 4 units. What is its equat

navik [9.2K]

Shifting down 4 means you are taking away 4.
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4 years ago

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Find the exact solution of x.<br> x2 = 16

vichka [17]

The answer is x=16/2
x=8

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4 years ago

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What is the inverse of the function f(x)=1/9x+2

Anna35 [415]

Answer:

$f^{-1}(x)=9x-18$

Step-by-step explanation:

we have

$f(x)=\frac{1}{9}x+2$

Let

$y=f(x)$

$y=\frac{1}{9}x+2$

Exchange variables x for y and y for x

$x=\frac{1}{9}y+2$

Isolate the variable y

$x-2=\frac{1}{9}y$

$y=9(x-2)$

$y=9x-18$

Let

$f^{-1}(x)=y$

$f^{-1}(x)=9x-18$ -------> inverse function

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4 years ago

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15 POINTS! PLEASE HELP!

notka56 [123]

Answer:

DC = 1332.95 feet

Step-by-step explanation:

From the figure attached,

Let the measure of DC = h ft

And measure of side BC = a ft

By applying tangent ratio in ΔBCD,

tan(56°) = $\frac{\text{Opposite side}}{\text{Adjacent side}}$

= $\frac{DC}{BC}$

= $\frac{h}{a}$

h = a[tan(56°)] --------(1)

By applying tangent rule in ΔACD,

tan(22°) = $\frac{\text{Opposite side}}{\text{Adjacent side}}$

tan(22°) = $\frac{DC}{BC+AC}$

= $\frac{h}{a+2400}$

h = (a + 2400)tan(22°) ------- (2)

Equating the values of h from equations (1) and (2),

a[tan(56°)] = (a + 2400)tan(22°)

a[tan(56°) - tan(22°)] = 2400[tan(22°)]

1.0785a = 968.6629

a = 899.085 ft

From equation (1),

h = 899.085[tan(56°)]

h = 1332.948

h ≈ 1332.95 ft

7 0

3 years ago