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Paladinen [302]
2 years ago
11

A student conducting a research study was told by her professor to use a scatterplot in conjunction with calculating the correla

tion coefficient. She discovered that the data points clustered along a straight line. This means:
Mathematics
1 answer:
zloy xaker [14]2 years ago
8 0

Answer:

a linear relationship exists between variables

Step-by-step explanation:

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Luis made 80% of what he made last week.If he made 72$ this week,how much did he make last week
IceJOKER [234]

Let

x--------> the amount in dollars that Luis make last week

we know that

80\% =\frac{80}{100}=0.80

0.80x=72\$ ------> equation that represent the situation

solve for x

Divide by 0.80 both sides

0.80x/0.80=72\$/0.80

x=72\$/0.80

x=90\$

therefore

<u>the answer is</u>

90\$

4 0
2 years ago
Read 2 more answers
7 people out of the 99 visitors bought a gift. About ___% of the visitors bought a gift.
ArbitrLikvidat [17]

Answer:

About 7.07% of the visitors bought a gift.

Step-by-step explanation:

7/99 = 0.0707

0.0707 *100 = 7.07%

then:

About 7.07% of the visitors bought a gift.

5 0
2 years ago
Brad measured the length of an object as 2.1 * 10^4 cm. Which items might he have measured? Check all that apply.
Airida [17]

Answer with explanation:

Length of an object

                           =2.1\times 10^4\\\\=2.1 \times 10000\\\\=21,000cm

Other unit of measurement are Meter and Kilometer.

→1 Meter = 100 cm

→1 Kilometer= 1,000 meter=100,000 cm

→→21,000 cm = 210 meter = 0.21 Km

Option B:→ length of a city park, is most suitable measurement ,among all other measurement ,that Brad has done.

Second option Might be: Option A→ Length of a city block , may be That Brad has measured.

All other options are Inappropriate, as they require smaller scale or may be larger Scale ,that brad has used to measure

1.≡ Height of a person →→→240 cm (Maximum of 8 feet)

2.  ≡Distance across a city  →→→1 Km or 2 Km or 3 Km...

3.  ≡Height of an apple tree→→→1,000 cm (Maximum)  

4. ≡Width of a screen in a theater→→→2,100 cm (Maximum)

5 ≡depth of water in a swimming pool→→→225 cm

None of the five things described above appears, that brad has measured.

7 0
2 years ago
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If 5 + 6i is a root of the polynomial function f(x), which of the following must also be a root of f(x)? –5 – 6i 5 – 6i 6 – 5i 6
san4es73 [151]

Answer: 5-6i

The rule is that if f(x) has real number coefficients, then a root of x = a+bi pairs up with its conjugate pair of x = a - bi. In this case, a = 5 and b = 6.

4 0
1 year ago
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In a class of 160 students, 90 are taking math, 78 are taking science, and 62 are taking both math and science. What is the prob
pogonyaev
Add all the numbers together and the difference is the answer which is 44%

7 0
2 years ago
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