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Musya8 [376]
2 years ago
12

12. What is the slope of the line =3x + 5? 5 3 -5 -3

Mathematics
1 answer:
Reika [66]2 years ago
4 0

Answer:

3, 3x+5

Step-by-step explanation:

DIFFERENTIATE W.R.T. X

3

EVALUATE

3x+5

 

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Help plz<br>6(2x - 11) + 15 = 3x + 12​
Ket [755]

Answer:

x = 7

Step-by-step explanation:

Lets do the brackets first,

6 × 2x = 12

6 × -11 = -66

------

Calculate the x constant:

12x - 3x = 9x

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Then the ones with no x:

-66 + 15 = -51

51 + 12 = 63

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Lastly, divide

63 ÷ 9 = 7

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Have a good day :)

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2 years ago
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I need Help!!!!!!!!!​
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3 years ago
HELPPPP
Tamiku [17]

Answer:

D) -9/4

Step-by-step explanation:

-4(3)³/3(4)²

-4(27)/3(16)

-108/48

divides both by 12

- 9/4

7 0
3 years ago
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Solve the following by completing the square :<br> x2 - 6x + 7 = 0<br>​
Arisa [49]

Answer:

Step-by-step explanation:

5 0
3 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)

6 0
3 years ago
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