1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
trapecia [35]
2 years ago
13

Could u clinch this???

Mathematics
1 answer:
disa [49]2 years ago
5 0
Hope it can help u!!!!!!!

You might be interested in
Is this a function or no?
IgorLugansk [536]

Answer:

No

Step-by-step explanation:

Positives cannot point at negatives I think.

5 0
2 years ago
The body of a person who weighs 50 kilograms contains around 2 × 102 grams of sodium chloride. How much sodium chloride is conta
Zolol [24]
I'm not sure but I.think it's C
4 0
3 years ago
Dorothy is half her sister's age. she will be three fourths of her sister's age in 20 years. how many years old is she?
Nitella [24]
<span>Dorthy's age is 10, she will be 30 in 20 years.</span>
6 0
3 years ago
Read 2 more answers
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
Solve this equation using an algebraic method: (x + 4)( x - 4) = 9
Luden [163]
Perform indicated operations on left side

x*x+4x+4x+4*4=9

x^2+4x+4x+16=9  combine like terms on left side

x^2+8x+16=9  subtract 9 from both sides

x^2+8x+7=0  factor

x^2+x+7x+7=0

x(x+1)+7(x+1)=0

(x+7)(x+1)=0

x=-1, -7
3 0
3 years ago
Read 2 more answers
Other questions:
  • 1/6 5/6<br><br> &lt;<br> &gt;<br> =<br> or none
    6·1 answer
  • Which steps could be part of the process in algebraically solving the system of equations, y + 5x = x2 + 10 and y = 4x – 10? Che
    15·2 answers
  • What point Can be found by taking the average of the endpoints of a line segment?
    8·1 answer
  • Find the area of a circle with a circumference of 3.14 units
    10·1 answer
  • I need help with this question! Will mark brainliest :)
    6·2 answers
  • Please help I’ll mark brainliest if u give a small explanation
    9·2 answers
  • Can someone help me pls
    12·1 answer
  • 2 x ² + 16x+63 2x² +19x+a​
    14·2 answers
  • Which set of side lengths will NOT form a triangle?
    9·1 answer
  • The population of LA is growing at a rate of 5% per year. In 2010, the population was 500,000. What would be the predicted curre
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!