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3 years ago

A utility company hires pollsters to knock on random doors in different parts of town to survey residents about the

Mathematics

2 answers:

Leokris [45]3 years ago

7 0

Answer:

B: Yes, it is biased. Some of the residents who are surveyed may not want to respond to someone who knocks at their door.

Step-by-step explanation:

edg2020

exis [7]3 years ago

4 0

Answer:

B: Yes, it is biased. Some of the residents who are surveyed may not want to respond to someone who knocks at their door.

Step-by-step explanation: Just took a quiz and past. Edge2020

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What are the next 2 numbers in the sequence ; 16, -8, 4, -2, 1, _ , _

RideAnS [48]

I would have to say -0.5 then positive 0.25 because the rule seems to be divide by -2.

5 0

3 years ago

In a country in 2007, there were 38.6 million people who were foreign-born. The population at the same time was 284,000,000. Wha

Allisa [31]

40 million foreign-born representing 13% of the population resided in the United States. The chart below shows the trends by decade, 1860-2010. It is adapted from the more detailed table that follows, which appears in Audrey Singer’s article,

3 0

3 years ago

NEED HELP ASAP

KengaRu [80]

Answer:

Part 1) Triangle GHI, JKL

Part 2) $(40*15)and(8*3)$ , $(18*6)and(4.5*1.5)$

Step-by-step explanation:

we know that

If two figures are similar

then

the ratio of their corresponding sides are equal and is called the scale factor

Part 1)

case a) triangle GHI

If ABC and GHI are similar

then

$\frac{4}{24}=\frac{3}{7}=\frac{5}{25}$

but

$0.17 \neq 0.43 \neq \ 0.20$

therefore

Triangle GHI is not similar to triangle ABC

case b) triangle DEF

If ABC and DEF are similar

then

$\frac{4}{44}=\frac{3}{33}=\frac{5}{55}$

$0.09=0.09=0.09$

therefore

Triangle DEF is similar to triangle ABC

case c) triangle MNO

If ABC and MNO are similar

then

$\frac{4}{10}=\frac{3}{7.5}=\frac{5}{12.5}$

$0.4=0.4=0.4$

therefore

Triangle MNO is similar to triangle ABC

case d) triangle JKL

If ABC and JKL are similar

then

$\frac{4}{21}=\frac{3}{20}=\frac{5}{29}$

$0.19 \neq 0.15 \neq 0.17$

therefore

Triangle JKL is not similar to triangle ABC

Part 2)

case a) If the rectangles are similar, then

$\frac{40}{8}=\frac{15}{3}$

$5=5$

therefore

the rectangles are similar

case b) If the rectangles are similar, then

$\frac{18}{4.5}=\frac{6}{1.5}$

$4=4$

therefore

the rectangles are similar

case c) If the rectangles are similar, then

$\frac{1,225}{3.5}=\frac{144}{1.2}$

$350\neq120$

therefore

the rectangles are not similar

case d) If the rectangles are similar, then

$\frac{13}{5.2}=\frac{5}{2.5}$

$2.5\neq 2$

therefore

the rectangles are not similar

3 0

4 years ago

Find the value of x which makes the area of this triangle equal 72

Maslowich

The Answer To Your Question Would Be 12

8 0

3 years ago

Find the area. HELP ME PLEASEEEEEEEEEEEEEEEEEEEEEEEee

larisa86 [58]

Answer:

area = 132 cm²

Step-by-step explanation:

area of rectangle = 7 x 12 = 84

area of one triangle = 8 x 6 x 0.5 = 24

total area = 84 + 24 + 24 = 132 cm²

7 0

3 years ago