3 years ago

A

Mathematics

1 answer:

bogdanovich [222]3 years ago

8 0

Answer:

d is your answer

Step-by-step explanation:

because ii need points thanks

You might be interested in

NEED YOUR HELP!! I WILL UPVOTE!

vodomira [7]

12x=-48 (divide 12 from both sides)
x=-4

10y-13y=30
-3y=30 (divide -3 from both sides)
-10=y

10x+14x=48
24x=48 (divide 24 from both sides)
x=2

5 0

3 years ago

25. On a farm, there are c cows and 15

vekshin1

Answer:b because if there is 4 more sheep than cows just subtract 4 and you get the number of cows

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Solve the system of equations.

guajiro [1.7K]

Answer:

<u>Option b. (x = 3, y = 20, z = -14)</u>

Step-by-step explanation:

Given:

2x + 2y + 3z = 4

5x + 3y + 5z = 5

3x + 4y + 6z = 5

Solve using Cramer’s rule

∴ $\left[\begin{array}{ccc}2&2&3\\5&3&5\\3&4&6\end{array}\right] =\left[\begin{array}{ccc}4\\5\\5\end{array}\right]$

∴A = $\left[\begin{array}{ccc}2&2&3\\5&3&5\\3&4&6\end{array}\right] = -1$

Ax = $\left[\begin{array}{ccc}4&2&3\\5&3&5\\5&4&6\end{array}\right] = -3$

Ay = $\left[\begin{array}{ccc}2&4&3\\5&5&5\\3&5&6\end{array}\right] =-20\\$

Az = $\left[\begin{array}{ccc}2&2&4\\5&3&5\\3&4&5\end{array}\right] = 14$

∴ x = Ax/A = -3/-1 = 3

y = Ay/A = -20/-1 = 20

z = Az/A = 14/-1 = -14

<u>So, the answer is option b. (x = 3, y = 20, z = -14)</u>

4 0

4 years ago

True or false?

olga2289 [7]

Answer:

True

Step-by-step explanation:

An exterior angle must form a linear pair with an interior angle.

3 0

3 years ago

Please help! And if u do label the answers so Ik which is which if u answer n say idk I’ll report u

Dmitry_Shevchenko [17]

Answer:

5. y-intercept is 8

6. slope is -1/2

7. y=-1/2x+8

7 0

3 years ago