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4 years ago

14

HELP PLEASE????? !!!! ???? ????

2 answers:

KonstantinChe [14]4 years ago

7 0

A for sure, and maybe D?

Allisa [31]4 years ago

3 0

I think it could be A.

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Given l(-4,3) and m(-7,-2), what's the length of lm

Sergeeva-Olga [200]

Distance = Square Root ( (X difference)^2<span> + (Y difference)^</span>2<span> )
</span>
Distance = Square Root ( (-4 --7)^2 + ( 3 --2)^2<span> )

</span>Distance = Square Root (3^2 + 5^2)

<span>Distance = Square Root (9 + 25)

Distance = </span><span>Square Root (34)

Distance = </span><span>5.8309518948

Therefore the length of lm equals </span> <span> <span> <span> 5.8309518948 </span> </span> </span>

3 0

3 years ago

One US dollar equals 0.84 euros. Margo wants to exchange $400 for euro. How many euros will she receive in exchange?

Evgen [1.6K]

400*0.84= 33.5 Euros
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8 0

4 years ago

Read 2 more answers

A college student is taking two courses. The probability she passes the first course is 0.67. The probability she passes the sec

andrezito [222]

Answer:

0.58 = 58% probability she passes both courses

Step-by-step explanation:

We can solve this question treating the probabilities as a Venn set.

I am going to say that:

Event A: She passes the first course.

Event B: She passes the second course.

The probability she passes the first course is 0.67.

This means that $P(A) = 0.67$

The probability she passes the second course is 0.7.

This means that $P(B) = 0.7$

The probability she passes at least one of the courses is 0.79.

This means that $P(A \cup B) = 0.79$

a. What is the probability she passes both courses

This is $P(A \cap B)$ .

We use the following relation:

$P(A \cup B) = P(A) + P(B) - P(A \cap B)$

So

$P(A \cap B) = P(A) + P(B) - P(A \cup B) = 0.67 + 0.7 - 0.79 = 0.58$

0.58 = 58% probability she passes both courses

5 0

3 years ago

Solve the system using substitution 5y-x=-5 7y-x=-23

dlinn [17]

5y-x= -5 7y-x= -23

x=5y+5

7y-(5y+5)= -23

7y-5y-5= -23

2y= -23+5

2y= -18

y= -9

x= 5y+5

x= (5*-9)+5

x= -45+5

x= -40

8 0

3 years ago

Find the complete factored form of the polynomial 5b-15c

Nataly_w [17]

5(b-3c)

Divide the entire polynomial by 5, as that is the only factor that is common throughout the entire polynomial.

6 0

4 years ago

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