Mathematics, 10.10.2019 00:30 mladyrj5338

Its an emergency guys i could really need some on this if i dont pass i am gonna fail and get bad grades in math
1. how many solutions does the equation have?

2(2x + 5) = 4(x + 3)

a.
one solution

b.
infinite solutions

c.
no solution

2. how many solutions does the equation have?

a + 5 = 1/5 (5a + 25)

a.
one solution

b.
infinite solutions

c.
no solution

3. how many solutions does the equation have?

3(4x - 3) - 7x = 5x - 9

a.
one solution

b.
infinite solutions

c.
no solution

4.
which expressions would complete this equation so that it has infinitely many solutions?

8 + 2(8x – 6) =

choose exactly two answers that are correct.

a.
2(4x + 7)

b.
9x – 10

c.
16x – 4

d.
4(4x – 1)

match each item in column a to an answer in column b.

5.

(1 pt)
what is the best way to classify each equation?
column a column b
1. 8x + 24 = 2(4x + 12) a. identity

2. 5x + 18 - x = 2(2x + 8) b. contradiction

3. 7(3x - 2) = 20x - 13 c. neither

4. 3x + 2(x - 10) = 5(x - 4)

Answers: 3

Show answers

Answers

Answer from: july00

1.) Let's solve for x.
2(2x + 5) = 4(x + 3)
4x + 10 = 4x + 12
4x - 4x = 12 - 10
0 = 2
Since we can't solve for x and also the argument is not true that 0 is not equal to 2. Therefore, NO SOLUTION (C).

2.) Let's solve for x.
a + 5 = 1/5 (5a + 25)
a + 5 = a + 5
a - a = 5 - 5
0 = 0
Since we can't solve for x but the argument is true which zero is equal to zero. This case becomes "indeterminate" because 0/1 = 0, 0/2 = 0, 0/3 = 0 and so on. Therefore, the answer is INFINITE SOLUTIONS (B).

3) Let's solve for x.
3(4x - 3) - 7x = 5x - 9
12x - 9 - 7x = 5x - 9
5x - 9 = 5x - 9
5x - 5x = -9 + 9
0 = 0
Therefore, INFINITE SOLUTIONS (B).

4.) Let's test each choices if the solution does not exist.
a.) 8 + 2(8x – 6) = 2(4x - 7)
8 + 16x -12 = 8x - 14
16x - 8x = -14 - 8 + 12
8x = -10
x = -1.25 (one solution)
b.) 8 + 2(8x – 6) = 9x - 19
8 + 16x - 12 = 9x - 19
16x - 9x = -19 - 8 + 12
7x = -15
x = -15/7 (one solution)
c.) 8 + 2(8x – 6) = 16x - 4
8 + 16x - 12 = 16x - 4
16x - 16x = -4 - 8 + 12
0 = 0 (infinite solutions)
d.) 8 + 2(8x – 6) = 4(4x -1)
8 + 16x - 12 = 16x - 4
16x - 16x = -4 - 8 + 12
0 = 0 (infinite solutions)
Therefore, the answers are C and D.

5.) Since we know how to solve for x, I am gonna conclude the answer instead. Identity is another term of "one solution". Contradiction is another term of "no solution". Neither is considered as "infinite solutions."
Number 1 is NEITHER.
Number 2 is CONTRADICTION.
Number 3 is IDENTITY.
Number 4 is NEITHER.

Answer from: Quest

step-by-step explanation:

a triangle's full angle is 180 degrees so 180 - 156 = 24. 24/2=12

Plz asap! ! i will award find the value of x in each case. give reasons to justify your solution

Answer from: Quest

the most boring ever written

step-by-step explanation:

i am writing something. yes, i plan to make it the most boring thing ever written. i go to the store. a car is parked. many cars are parked or moving. some are blue. some are tan. they have windows. in the store, there are items for sale. these include such things as soap, detergent, magazines, and lettuce. you can enhance your life with these products. soap can be used for bathing, be it in a bathtub or in a shower. apply the soap to your body and rinse. detergent is used to wash clothes. place your dirty clothes into a washing machine and add some detergent as directed on the box. select the appropriate settings on your washing machine and you should be ready to begin. magazines are stapled reading material made with glossy paper, and they cover a wide variety of topics, ranging from news and politics to business and stock market information. some magazines are concerned with more recreational topics, like sports card collecting or different kinds of hairstyles. lettuce is a vegetable.

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Its an emergency guys i could really need some on this if i dont pass i am gonna fail and get bad g...