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Alinara [238K]
2 years ago
13

Does the mapping represent a function? Explain why or why not.

Mathematics
1 answer:
IRINA_888 [86]2 years ago
5 0

Step-by-step explanation:

It is not a function as it shows a one-to-many relationship

(From 0 in the domain to 0 and 9 in the range)

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Zack bought a coat for $69.78. He paid with a $100 bill and received $26.73 in change.How Much was the sales tax? Show your work
Sindrei [870]
69.78+26.73-100 just use your calculator and you will out and that a hint
7 0
3 years ago
Distrubutive property <br> 1. 54+27=9 (_+_)
Anarel [89]

Answer:

9(6+3) = 54+27

Step-by-step explanation:

dunno how to explain but hope the answer helps

3 0
2 years ago
Read 2 more answers
If 2a - b = 4 , find a.
julia-pushkina [17]
<h2>Answer:  a = ¹/₂ (4 + b)</h2>

<h3>Step-by-step explanation:</h3>

To solve for 'a' we have to make it the subject of the equation. Since there are two unknowns ('a' & 'b'), we won't get a numerical value of 'a', but an expression in terms of the second unknown 'b'.

Since 2a - b = 4                    <em> [add 'b' to both sides]</em>

then          2a = 4 + b             <em>[divide both sides by 2 = multiplying by  ¹/₂]</em>

                   a = ¹/₂ (4 + b)

3 0
3 years ago
How many positive integers not exceeding 1000 are not divisible by either 4 or 6?
san4es73 [151]
\left\lfloor\dfrac{1000}4\right\rfloor=250

\left\lfloor\dfrac{1000}6\right\rfloor=166

\left\lfloor\dfrac{1000}{\mathrm{lcm}(4,6)}\right\rfloor=\left\lfloor\dfrac{1000}{12}\right\rfloor=83

250+166-83=333
7 0
3 years ago
Luis bought stock at $66.80. The next day, the price increased $13.85. This new price changed by −2 3 /4 % the following day. Wh
larisa86 [58]
We know that
1) <span>Luis bought stock at ---------------> $66.80
2) </span><span>The next day, the price increased $13.85--------> $66.80+$13.85=$80.65
3) </span><span>This new price changed by −2 3 /4 % the following day
2 3/4%----> (2*4+3)/4----> 11/4 %----> 2.75%
so
(100%-2.75%)-----> 97.25%
t</span><span>he final stock price is $80.65*0.9725-----> $78.43

the answer is 
</span>$78.43<span>

</span>
6 0
3 years ago
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