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Zielflug [23.3K]
3 years ago
8

GEOMETRY PROOFS:

Mathematics
1 answer:
Marina CMI [18]3 years ago
8 0

Answer:

Statement 2: ∠BAC = ∠CZY

Reason 3: Vertically opposite angles

Statement 4: YC = CB

Reason 5: AAS (Angle, Angle, Side)

Reason 6: Corresponding sides, congruent triangles

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Please help me solve this HCF​
Rina8888 [55]

Answer:

(x+y)

Step-by-step explanation:

{x}^{2}   -  {y}^{2}  = (x + y)(x - y)

Thus, the HCF is (x+y).

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Find the domain and range of function f(x) is equal to root √x-1
Vladimir79 [104]

Answer:


Step-by-step explanation:

If you meant f(x) = √x - 1, then the domain is [0, infinity).

If you meant f(x) = √(x-1), then the domain is [1, infinity).

When any ambiguity may rear its ugly head, use parentheses, as indicated here.

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What is the slope of y = -4?
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-4 is the slope

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3 years ago
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18. At the movie theater, the 7:00 showing sold 75% of the tickets available.
attashe74 [19]

Answer:

\color{red}\rule{10pt}{10pt} \color{pink}\rule{10pt}{10pt}\color{yellow}\rule{10pt}{10pt}\color{blue}\rule{10pt}{10pt}\color{green}\rule{10pt}{10pt}\color{royalblue}\rule{10pt}{10pt}\color{black}\rule{10pt}{10pt}\color{white}\rule{10pt}{10pt}\color{purple}\rule{10pt}{10pt}\color{magenta}\rule{10pt}{10pt}\color{orange}\rule{10pt}{10pt}\color{brown}\rule{10pt}{10pt}\color{lime}\rule{10pt}{10pt}

5 0
2 years ago
Find the missing measure for a right circular cone given the following information. Find V if r = 2 and L.A. = 12. (16/3)√2 16√2
aksik [14]

Volume of cone is given by formula

V = \frac{\pi r^{2}h}{3}-------------------------------------------(1)

We are already given r =2, so we need to find h and then we can find volume

So missing meausre is height here ------------------------------------------------------------------------------

To find h we will use lateral area = 12\pi given

Formula for lateral area of cone is \pi r\sqrt{r^{2}+ h^{2}}

so we have12 = \pi r\sqrt{r^{2}+ h^{2}}

Now plug r as 2 in this equation

12 \pi = \pi (2)\sqrt{2^{2}+ h^{2}}

Now solve for h as shown and get h by itself

\frac{12\pi}{2\pi}  = \frac{2\pi\sqrt{4+h^{2}}}{2 \pi}

6  = \sqrt{4+h^{2}}

6^{2}   = \sqrt{4+h^{2}}  ^{2}

36}   = 4+h^{2}36 - 4    = 4+h^{2} -4

32  = h^{2}\sqrt{32} = \sqrt{h^{2}}

\sqrt{16 \times 2} = h\sqrt{16} \times \sqrt{2} = h

4\sqrt{2} = h----------------------------------------------------(2)

Now plug 2 in r place and 4\sqrt{2} in h place in volume formula given in (1)

V = \frac{\pi r^{2}h}{3}

V = \frac{\pi (2)^{2}4\sqrt{2}}{3}     [/tex][tex] V = \frac{\pi (4)4\sqrt{2}}{3}

V = \frac{16 \pi \sqrt{2}}{3}

so choice (1) is right answer

(1)  \frac{16 \sqrt{2}\pi}{3}

correct answer --------------------------------------------------------------------------------------------------

(2)  16 \sqrt{2} \pi

incorrect answer as correct volume answer we got as \frac{16 \sqrt{2}\pi}{3} --------------------------------------------------------------------------------------------------

(3)  4 \sqrt{38} \pi

incorrect answer as correct volume answer we got as \frac{16 \sqrt{2}\pi}{3} --------------------------------------------------------------------------------------------------------

6 0
3 years ago
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