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3 years ago

Which characteristic best describes the data in the scatterplot?

Mathematics

2 answers:

denis23 [38]3 years ago

7 0

Answer:

A. Negative association

Step-by-step explanation:

The points are going down.

lbvjy [14]3 years ago

4 0

A. Negative Association

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20 POINTS! 1 question PERPENDICULAR LINES

garik1379 [7]

If the line is perpendicular, that means the slope has to be opposite, so it will have a slope of -1/2

Fill in the point that it has to pass through on y and x

1=-1/2(0) + b

1=0+b

1=b

Then go back to the standard form y=mx + b and fill in the slope and y intercept

Y= -1/2x + 1

8 0

3 years ago

Read 2 more answers

What is an equation of circle O shown in the graph below?

vovangra [49]

Answer:

Equation of circle is $x^2+y^2-12x-4y+24=0$

None of the options is correct

Step-by-step explanation:

Given: Graph

To find: equation of circle

Solution:

A circle is a locus of all points that are at a fixed distance (radius) from a fixed point (centre).

From the graph,

centre (a, b) = $\left ( 6,2 \right )$

radius (r) = 4 units

Equation of circle is of form $(x-a)^2+(y-b)^2=r^2$

$(x-6)^2+(y-2)^2=4^2\\x^2+36-12x+y^2+4-4y=16\\x^2+y^2-12x-4y+24=0$

5 0

4 years ago

Find the perimeter of the figure. ( Its a square, and one side says 20 ft while another says 18ft. I am confused. )

Luba_88 [7]

It might look like a square but it might actually be a rectangle but the answer is 76ft

3 0

3 years ago

An engineer has designed a valve that will regulate water pressure on an automobile engine. The valve was tested on 160 engines

abruzzese [7]

Answer:

Test statistic Z = 2.1097

Step-by-step explanation:

Step(i):-

Given that size of the sample 'n' = 160

Given that mean of the Population(μ) = 5.3pounds/square inch

The Standard deviation of the population(σ) = 0.6

Mean of the sample(x⁻) = 5.4

Level of significance =0.1

Step(ii):-

Test statistic

$Z = \frac{x^{-}-mean }{\frac{S.D}{\sqrt{n} } }$

$Z = \frac{5.4-5.3}{\frac{0.6}{\sqrt{160} } }$

Z = 2.1097

Final answer:-

Test statistic Z = 2.1097

5 0

3 years ago

BEAT THE TESTI

GrogVix [38]

Step-by-step explanation:

2x + 5 = 19; X = 7: Correct

2(7) + 5 = 19

14+5=19

3+x+2-x=16; x=3 : Incorrect

3+3+2-3=16

6+2-3=16

7-3=16

4=16

x+2/5=2; x = 8: incorrect

8+2/5=2

x= 8/5

6 = 2x -8; x = 7: correct

6 = 2(7) -8

6 = 14-8

14 =1/3x+5; x = 18: Incorrect

14 = 18/3+5

14 = 6+5

4 0

3 years ago