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ki77a [65]
2 years ago
6

We want to determine which point is closer to the origin: M (1, -3) or N (7, 9)

Mathematics
1 answer:
Neporo4naja [7]2 years ago
3 0

Answer: M(1, -3)

Step-by-step explanation: Put coordinates on graph

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Simplify -8 + 17n + 10 + 8n
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-8 + 17n + 10 + 8n =


25n + 2

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Pls help this is due is soon...
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I really want to help but i can’t i am on vacation
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4x = 19, when x equals 5. True false or open
svp [43]

Answer:

false

Step-by-step explanation:

if x equals 5 then 4 times 5 would equal 20 not 19

8 0
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Please I need help? And can u help me with the other questions I asked on my profile?
emmasim [6.3K]

Answer:

see explanation

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

To calculate m use the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (2,2) and (x₂, y₂ ) = (8, 5) ← 2 points on the line

m = \frac{5-2}{8-2} = \frac{3}{6} = \frac{1}{2}

the line crosses the y-axis at (0, 1) ⇒ c = 1

y = \frac{1}{2} x + 1 ← equation in slope- intercept form



8 0
2 years ago
In order to determine the effectiveness of a new measles antibody test, it is administered to 500 people chosen at random. The n
myrzilka [38]

Answer:

The probability that a randomly chosen person has measles antibodies in his/her blood if the new test is positive = 0.9796

Step-by-step explanation:

The event that someone tests positive = P(T)

The event that someone has antibodies = P(A)

The event that someone does not have antibodies = P(A')

The new test was positive when administered to 96% of those who have the antibodies.

This probability = P(T n A) = 0.96

The new test gave positive results in 2% of those who do not have them.

This probability = P(T n A') = 0.02

The probability that a randomly chosen person has measles antibodies in his/her blood if the new test is positive = P(A|T)

This conditional probability is given as

P(A|T) = P(T n A) ÷ P(T)

P(T) is given as

P(T) = P(T n A) + P(T n A') = 0.96 + 0.02 = 0.98

P(A|T) = P(T n A) ÷ P(T) = 0.96 ÷ 0.98 = 0.9796

Hope this Helps!!!

5 0
3 years ago
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