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Ivanshal [37]
3 years ago
6

Please help me please!

Mathematics
2 answers:
anyanavicka [17]3 years ago
7 0

Answer:

D) cannot factor

Step-by-step explanation:

D) cannot factor

mina [271]3 years ago
3 0

D: cannot factor

it’s not factorable

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The lines y= 2x+4 and y=x-3 intersect. find the coordinates of the point of intersection
Yuri [45]

Answer:

(-7, -10)

Step-by-step explanation:

Solve for x and y in double variable equation

y = 2x + 4

y = x - 3

y = x - 3, plug in to first equation

x - 3 = 2x + 4

x = -7

y = -7 - 3

y = -10

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5 0
2 years ago
I need help with? this question. what is 7(-7)+149-56/2=?
Vlad [161]

Answer:

the answer is 22 hope this helps

Step-by-step explanation:

7(-7)= -49

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3 0
2 years ago
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erastovalidia [21]

100

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6 0
3 years ago
A vaccine has 90% probability of being effective in preventing a certain disease. the probability of getting the disease if the
IgorLugansk [536]
If 25% of the people <em>are</em> vaccinated, then 75% of the people are <em>not</em> vaccinated.  Of those not vaccinated, each has a 50% chance of contracting the disease.  The probability that someone is both not vaccinated and contracts the disease is (0.75)(0.5)=0.375.
The probability that someone is vaccinated and contracts the disease is (0.25)(0.1)=0.025 (it is multiplied by 0.1 because if the vaccine is 90% effective, then there is a 10% chance someone that is vaccinated can contract the disease.
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Step-by-step explanation:

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