All categories

3 years ago

Which values of m and b will create a system of equations with no solution? Check all that apply.

2 answers:

8 0

2 equations of lines will have no solution if they have same coefficient m but different coefficient b. If they would have same coeficient b they would logicaly be "on on another"

After knowing this we can see that second and fifth option have m=-2 and they also have different coeficients. which means they are the answer

Answer is second and fifth option.

daser333 [38]3 years ago

5 0

Answer: Answer is second and fifth option.

Step-by-step explanation:

m = –2 and b =

You might be interested in

Find the first 3 terms of arithmetic sequence if t5=-154 and t9=-274. find t1, t2, t3

777dan777 [17]

Answer: t1 = -34; t2 = -64; t3 = -94

d is the distance between numbers (d > 0)

we have:

t5 = t1 + 4d = -154

t9 = t1 + 8d = -274

we have the equations:

t1 + 4d = -154

t1 + 8d = -274

<=> t1 = -34

d = -30

with t1 = -34 and = -30 => t2 = -34 - 30 = -64

t3 = -64 - 30 = -94

Step-by-step explanation:

4 0

3 years ago

The ages of trees in a forest are normally distributed with a mean of 25 years and a standard deviation of 4. Approximately what

harkovskaia [24]

Answer:

78.88%

Step-by-step explanation:

We have been given that

$\mu=25,\sigma=4,x_1=20,x_2=30$

The z-score formula is given by

$z-\text{score}=\frac{x-\mu}{\sigma}$

For $x_1=20$

$z_1=\frac{20-25}{4}\\\\z_1=-1.25$

For $x_2=30$

$z_2=\frac{30-25}{4}\\\\z_2=1.25$

Now, we find the corresponding probability from the standard z score table.

For the z score -1.25, we have the probability 0.1056

For the z score 1.25, we have the probability 0.8944

Therefore, the percent of the trees that are between 20 and 30 years old is given by

0.8944 - 0.1056

= 0.7888

=78.88%

6 0

3 years ago

Read 2 more answers

Ethan is playing in a soccer league that has 6 teams (including his team). Each team plays every other team twice during the reg

docker41 [41]

Answer:

There are going to be 31 matches played in the soccer league.

Step-by-step explanation:

The soccer league has 6 teams, so if every team plays against the others twice, there are going to be played 30 matches:

-Team 1: v Team 2 (2), v Team 3 (2), v Team 4 (2), v Team 5 (2), v Team 6 (2)

-Team 2: v Team 3 (2), v Team 4 (2), v Team 5 (2), v Team 6 (2)

-Team 3: v Team 4 (2), v Team 5 (2), v Team 6 (2)

-Team 4: v Team 5 (2), v Team 6 (2)

-Team 5: v Team 6 (2)

-Team 6: -

If there is a final championship game after the 30 regular season matches, there are going to be 31 matches played in the league.

5 0

3 years ago

I NEED HELP PICTURE PROVIDED!

Sav [38]

Question 2:
The answer is 21
The two angles are vertically opposite, which makes them equal and also means we can make an equation:
4x - 4 = 3x + 17
- 3x
x - 4 = 14
+ 4
x = 21

Question 3:
The answer is 23
Again, the angles are vertically opposite, so we can make them equal each other:
5x - 53 = 3x - 7
- 3x
2x - 53 = -7
+ 53
2x = 46
÷ 2
x = 23

I hope this helps!

7 0

2 years ago

-3 (y-5)=24<br> Please explain how you get y

vazorg [7]

So you use the distributive property. so, -3y+15=24
-3y=9
y=-3

6 0

3 years ago

Read 2 more answers