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3 years ago

I NEED HELP LIKE ASAP

Mathematics

1 answer:

steposvetlana [31]3 years ago

7 0

Answer:

the answer would be a

Step-by-step explanation:

if i am right can i please have the brainelest

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Solve for x and y: x+y=5 x−y=a

9966 [12]

Answer:

x=5/2 + a/2, y= 5/2 - a/2

Step-by-step explanation:

We can solve this system using addition of the equations

x+y=5

x-y=a

2x =(5+a)

x=(5+a)/2= 5/2 +a/2

x=5/2 +a/2

x-y=a

y = x - a , x=5/2 + a/2

y= 5/2 + a/2-a

y= 5/2 - a/2

5 0

3 years ago

Please help asap…………

sineoko [7]

Answer: linear

Step-by-step explanation:

4 0

2 years ago

How do you collect and distribute. -c+5c-3a(a+3a)

jasenka [17]

First, add in the parentheses. a+3a=4a. Then, make subtraction into adding negatives. (-c)+5c +(-3a)+4a. It becomes 4c+a.

5 0

3 years ago

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:

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

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

0.58 = 58% probability she passes both courses

5 0

3 years ago

What is the value of x that makes l1||l2? A. 14 B. 11.6 C. 10 D. 26.7

stich3 [128]

Answer:

Step-by-step explanation:

By the alternate interior angles theorem,

$4x=2x+20 \\ \\ 2x=20 \\ \\ x=10$

6 0

2 years ago

I NEED HELP LIKE ASAP ​

I NEED HELP LIKE ASAP