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LekaFEV [45]
3 years ago
14

Anyone help me pzzzzzzzzz

Mathematics
1 answer:
Marina86 [1]3 years ago
4 0

The x values are the domain and they y values are the range. So the domain is {-2, 0, 2}. And the range is {-1, 0, 1}. So B is the answer.

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A bicycle wheel with radius 26" rotates through an arc that measures 80°. What is the length of the arc of the tire that touched
Bad White [126]
\bf \textit{arc's length}\\\\
s=\cfrac{\theta \pi r}{180}\quad 
\begin{cases}
r=radius\\
\theta =angle~in\\
\qquad degrees\\
------\\
\theta = 80\\
r=26
\end{cases}\implies s=\cfrac{80\cdot \pi \cdot 26}{180}
8 0
3 years ago
Please!!! I’ll mark Brainliest!! I really need help!!!
Tatiana [17]

Answer:

(x, \:  \: y) = (4, \:  \:  -  \frac{1}{4} )

Step-by-step explanation:

\frac{1}{4} x + \cancel{ 1 \frac{1}{2} y} =  \frac{5}{8}...(1)  \\  \\  \frac{3}{4} x  - \cancel{ 1 \frac{1}{2} y} = 3 \frac{3}{8} ...(2) \\  -  -  -  -  -  -  -  -  - \\(adding\: equations\: 1 \:\&\:2) \\ ( \frac{1}{4}  +  \frac{3}{4} )x =  \frac{5}{8}  + 3 \frac{3}{8}  \\  \\  \frac{4}{4} x =  \frac{5}{8}  +  \frac{27}{8} \\  \\   x =  \frac{32}{8} \\  \\ x = 4 \\  \\ plug \: x = 4 \: in \: equation \: (1) \\  \\  \frac{1}{\cancel 4}  \times \cancel 4 + 1 \frac{1}{2} y =  \frac{5}{8}  \\  \\ 1 +  \frac{3}{2} y =  \frac{5}{8}  \\  \\ \frac{3}{2} y =  \frac{5}{8}   - 1\\  \\ \frac{3}{2} y =  \frac{5 - 8}{8}\\  \\ \frac{3}{2} y =  \frac{ - 3}{8}\\  \\ y =   \frac{ - 3}{8} \times  \frac{2}{3}  \\  \\ y =  \frac{1}{4}  \\  \\ (x, \:  \: y) = (4, \:  \:  -  \frac{1}{4} )

5 0
2 years ago
AB = x - 10, BC = x + 2, and AC = 28. Find BC.<br><br>Please help!
Leno4ka [110]

Answer:

BC = 20

Step-by-step explanation:

AC = AB + BC

28 = x-10 + x+2

Combine like terms

28 = 2x -8

Add 8 to each side

28+8 = 2x-8+8

36 = 2x

Divide by 2

36/2 = 2x/2

18 =x

We want to find BC

BC = x+2

     =18+2

     =20

6 0
3 years ago
Read 2 more answers
Help I mark brainliest
Serga [27]

Answer:

-\frac{1}{5} t^{15}

Step-by-step explanation:

sry if im wrong

3 0
3 years ago
Can someone help me please
babunello [35]

If the functions are inverses, then f(g(x)) = x.

A.

\displaystyle f(g(x))=f\left(\frac{3x+1}{3}\right)=\frac{1}{\frac{3x+1}{x}-3}\\\\=\frac{1}{\left(\frac{3x+1-3x}{x}\right)}=\frac{1}{\left(\frac{1}{x}\right)}=x

The functions are inverses of each other.

B. The domain of f(x) = x≠3. The domain of g(x) is x≠0.

The domain of f(g(x)) is (-∞, 0) ∪ (0, ∞).

The domain of g(f(x)) is (-∞, 3) ∪ (3, ∞).

4 0
3 years ago
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