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mr_godi [17]
3 years ago
7

Jupiter High School needs to select a new mascot. Four designs have been submitted and the school has to vote. Which method woul

d be best, in order to reduce bias and keep the vote fair?
A) Have each student vote in first period on Monday. The one with the most votes win.
B) Send out four facebook pictures-one for each design, and the one with the most likes wins.
C) Send out a google form where the respondent can choose the one they like best. The one with the most votes wins.
D) Provide a phone number for each of the designs and the students call the number to vote. The one with the most votes wins.
Mathematics
2 answers:
grigory [225]3 years ago
6 0
A. have each student vote in first period on monday. the one with the most votes win.
SIZIF [17.4K]3 years ago
4 0

A) Have each student vote in first period on Monday. The one with the most votes win.

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Two sets of equatic expressions are shown below in various forms: Line 1: x2 + 3x + 2 (x + 1)(x + 2) (x + 1.5)2 − 0.25 Line 2: x
kherson [118]

Answer:  The correct line is

\textup{Line 1 :}x^2+3x+2=(x+1)(x+2)=(x+1.5)^2-0.25.

Step-by-step explanation:  We are given the following two sets of quadratic expressions in various forms:

\textup{Line 1: }x^2+3x+2=(x+1)(x+2)=(x+1.5)^2-0.25,\\\\\textup{Line 2 :}x^2+5x+6=(x+2)(x+3)=(x+2.5)^2+6.25.

We are to select one of the lines from above that represent three equivalent expressions.

We can see that there are three different forms of a quadratic expression in each of the lines:

First one is the simplified form, second is the factorised form and third one is the vertex form.

So, to check which line is correct, we need to calculate the factorised form and the vertex form from the simplified form.

We have

\textup{Line 1: }\\\\x^2+3x+2\\\\=x^2+2x+x+2\\\\=x(x+2)+1(x+2)\\\\=(x+1)(x+2),

and

x^2+3x+2\\\\=x^2+2\times x\times 1.5+(1.5)^2-(1.5)^2+2\\\\=(x+1.5)^2-2.25+2\\\\=(x+1.5)^2-0.25.

So,

\textup{Line 1 :}x^2+3x+2=(x+1)(x+2)=(x+1.5)^2-0.25.

Thus, Line 1 contains three equivalent expressions.

Now,

\textup{Line 2: }\\\\x^2+5x+6\\\\=x^2+3x+2x+6\\\\=x(x+3)+2(x+3)\\\\=(x+2)(x+3),

and

x^2+5x+6\\\\=x^2+2\times x\times 2.5+(2.5)^2-(2.5)^2+6\\\\=(x+2.5)^2-6.25+6\\\\=(x+2.5)^2-0.25\neq (x+2.5)^2+6.25.

So,

\textup{Line 2 :}x^2+3x+2=(x+1)(x+2)=(x+1.5)^2+6.25.

Thus, Line 2 does not contain three equivalent expressions.

Hence, Line 1 is correct.

7 0
4 years ago
Reuben made $144 for 9 hours of work at the same rate, How much would he make for 17 hours of work?
Aliun [14]

Aanswer:272

Step-by-step explanation:

144÷9=16$ per hr

16$×17hr=272

3 0
4 years ago
Read 2 more answers
Use the Side-Splitter Theorem to find x given that NQ is parallel to OP.
In-s [12.5K]

Answer:

x = 7

Step-by-step explanation:

\frac{20}{30} =\frac{14}{14+x}

(20)(14+x)=(30)(14)

280+20x=420

20x=420-280

20x=140

x=140/20=7

Hope this helps

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3 years ago
Help me with the pic below
Nookie1986 [14]

The order goes 3, 2, 1, 5, 4 I think.


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3 years ago
Find the area of a regular dodecagon (12 sided regular
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Answer:

3434

Step-by-step explanation:

3=343+3=3434

6 0
3 years ago
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