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aksik [14]
3 years ago
14

1

Mathematics
1 answer:
zzz [600]3 years ago
8 0

A two-way table is such that has two categorical variables and as such, the data are presented in rows and columns.

The correct row and column headings for the given dataset are:

Column: above 60°F, below 60°F, Row: sunny, not sunny

Given that:

Above\ 60^oF=14

Below\ 60^oF=17

Sunny = 19

The two-way table would have the following representations;

  • Above 60^oF and Below 60^oF as the column entries
  • Sunny and not sunny as the row entries

The following representations are also possible

  • Above 60^oF and Below 60^oF as the row entries
  • Sunny and not sunny as the column entries

Base on the above representations, we can conclude that options (b) is true

Read more about two-way tables at:

brainly.com/question/20608299

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Ilya [14]

Step-by-step explanation:

∆PQR similar to ∆ JKL

JK/KL= PQ/QR

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QR=3×2= 6

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and, tan(J) = KL/JK =12/6=2

\frac{ \tan(R) }{ \tan(J) }  =  \frac{ \frac{1}{2} }{2}

\frac{ \tan(R) }{ \tan(J) }   =  \frac{1}{4}

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option D

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6 0
3 years ago
how many pounds of coffee worth $10 a pound should be added to 20 pounds of coffee worth $4 a pound to get a mixture worth $5 a
Solnce55 [7]

Answer:

4

Step-by-step explanation:

1. if the mass of coffee worth $10 is 'x', then its worth is 10x, and the worth of the mixture is 5(x+20);

2. using the previous item it is possible to write the next equation:

5(x+20)=4*20+10*x; ⇒ x=4.

3. the required mass is 4 pounds.

5 0
3 years ago
2(10−x)−14=<br> plz help me &lt;3
BartSMP [9]

How to get answer:

\mathrm{Apply\:the\:distributive\:law}:\quad \:a\left(b-c\right)=ab-ac\\a=2,\:b=10,\:c=x\\=2\cdot \:10-2x\\\mathrm{Multiply\:the\:numbers:}\:2\cdot \:10=20\\=20-2x\\=20-2x-14\\Group\:like\:terms\\=-2x+20-14\\\mathrm{Add/Subtract\:the\:numbers:}\:20-14=6\\Answer: =-2x+6

4 0
4 years ago
Read 2 more answers
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