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Nataly [62]
2 years ago
8

What is an equation of the line that passes through the points (7, 6) and (-2, -3)?

Mathematics
2 answers:
zloy xaker [14]2 years ago
6 0

Answer:

y=1x-1

Step-by-step explanation:

y=mx+b is the equation to find the y intercept, here our line is linear and intercepts on point -1 on a graph, so now we know what our b is. Next, you want to see what the slope (mx) is. x is automatically assumed to be one, so you move your point one to the right (because it is positive) then you figure out how far up until it touches another point, in this case going from (-1,0) moving up one and right one brings you to (0,1) and you continue moving up or down that slope to your points.

victus00 [196]2 years ago
4 0

Answer:

y=x+1

Step-by-step explanation:

first determine the slope m

then plug in the values given

in the format of y= mx+ b and solve

for b

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Answer:The answer is 12

Step-by-step explanation:

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The large sphere has a diameter of 12 feet. What is the volume of the shaded figure? Express the answer in terms of π.
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2 years ago
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A screening test wished to improve the diagnostic ability to identify Zika-infected fetuses in pregnancy rather than after birth
12345 [234]

Answer:

Sensitivity = 66.7%  (C)

specificity= 98.0%  (E)

positive predictive value = 80.0%  (F)

Negative predictive value = 96.0%  (D)

accuracy of the test  = 94.5%  (A)

Step-by-step explanation:

Given the data in the question;

                                    Disease Present              Disease Absent        Total

Test Positive                      24                                        6                        30

Test Negative                    12                                       288                     300

Total                                   36                                       294                    330

so A = 24, B = 6, C = 12 and D = 288

sensitivity = [A/(A+C)]×100 = [24/(24+12)]×100 = [24/36]×100

Sensitivity = 66.7%  (C)

specificity= [D/(D+B)]×100 = [288/(288+6)]×100 = [288/294]×100

specificity= 98.0%  (E)

positive predictive value = [A/(A+B)]×100 = [24/(24+6)]×100

= [24/30]×100

positive predictive value = 80.0%  (F)

Negative predictive value = [D/(D+C)]×100 = [288/(288+12)]×100

= [288/300]×100

Negative predictive value = 96.0%  (D)

accuracy of the test = [A+D/(A+B+C+D)]×100 = [24+288/(24+6+12+288)]×100

= [312/330]×100

accuracy of the test  = 94.5%  (A)

Nothing 33.3% (B)

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