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garik1379 [7]
4 years ago
10

Which inequalities have no solution? Check all of the boxes that apply.

Mathematics
2 answers:
Alex787 [66]4 years ago
3 0
Both A and C are correct 

SashulF [63]4 years ago
3 0

Answer:  The answer is (A) and (C).


Step-by-step explanation:  We are given four options and we are to check which of these inequalities have no solution.

(A) We have

x>x\\\\\Rightarrow x-x>0\\\\\Rightarrow 0>1,

which cannot be possible, so this inequality will have no solution.

(B) We have

-3x=-3x\\\\\Rightarrow -3x+3x=0\\\\\Rightarrow 0=0,

which is always true, so this equation will have infinitely many solutions.

(C) We have

-4+x>-2+x\\\\\Rightarrow -4+x+2-x>0\\\\\Rightarrow -2>0,

which is never true, so this inequality will have no solution.

(D) We have

x-2

which is always true, so this inequality will have infinitely many solutions.

Thus, the correct options are (A) and (C).


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Help with math please:)
garri49 [273]

Answer: ben

Step-by-step explanation:

8 0
3 years ago
I went to the grocery store the other day and there were no price tags on anything! I bought 3 loaves of bread and 1 milk jug an
Lostsunrise [7]
To solve this problem, set up and solve a system of equations.  The variables b and m will represent a bread loaf and milk jug, respectively:

\left \{ {{3b + m = 9} \atop {b + 2m =5.5}} \right.

I would solve using substitution.  Take one of the equations and set it equal to one of the variables, for example:

3b + m =9 \\ m = 9 -3b

Now, plug this into the other equation for m and solve for b:

b + 2m =5.5 \\ b + 2(9-3b)= 5.5 \\ b + 18 - 6b = 5.5 \\ -5b + 18 = 5.5 \\ -5b = -12.5 \\ b = 2.5

We now know that a loaf of bread costs $2.50.  Plug this value in for b in the first equation and solve for m:

3b + m = 9 \\ 3(2.5) + m = 9 \\ 7.5+m = 9 \\ m = 1.5

One jug of milk costs $1.50 and one loaf of bread costs $2.50.
8 0
3 years ago
Simplify<br> 19a - 28a² + 5
Reptile [31]

Answer:

-28a² +19a+5

Step-by-step explanation:

8 0
3 years ago
a scientist notes that the number of bacteria in a colony is 50.3 hours later, she notes that the number of bacteria has increas
sergejj [24]

It will take 5.83 hours for the bacteria to reach 1119.

<h3>What is exponential Growth ?</h3>

Exponential growth is when the quantity increases according to the function

P_t = P_0 e^{ kt}

It is given in the question that

Initial number of Bacteria is 50

After 3 hours the bacteria has increased to 80

The bacterial growth is an exponential growth

P_t = P_0 e^{ kt}

80 = 50 e^{ k * 3}

Applying log on both sides

1.6 = 3*k

k = 1.6/3

k = 0.533

if this rate of growth continues, how much more time will it take for the number of bacteria to reach 1119

1119 = 50e^{0.533* t}\\\\3.18 = 0.533 *t\\\\5.83 = t

Therefore it will take 5.83 hours for the bacteria to reach 1119.

To know more about exponential growth.

brainly.com/question/11487261

#SPJ1

6 0
2 years ago
Read 2 more answers
Help urgently pleaseee I need it now
creativ13 [48]

Answer:

4:

3x  + 6y = 12 \\ 6y =  - 3x + 12 \\ y =  - 0.5y + 2 \\ m =  - 0.5 \\ b = 2

5 :

NR:

N=(-2,3)

-2×-0.5+2=1+2=3✓

R=(2,1)

2×-0.5+2=1✓

4 0
3 years ago
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