how many solutions does the equation 3x-2x+4=2+x+2 have

Answer:

you need to tell us what error she made first then you would find another way to solve the problem and look at all the posiibiltys

Step-by-step explanation:

Answer: c. 0.40396

Step-by-step explanation:

The total number of flaws is given by:

[tex]{\left({0}\times{4}\right)}+{\left({1}\times{3}\right)}(0\times4)+(1\times3) +{\left({2}\times{5}\right)}+{\left({3}\times{2}\right)}+(2\times5)+(3\times2) +{\left({4}\times{4}\right)}+{\left({5}\times{1}\right)}+(4\times4)+(5\times1) +{\left({6}\times{1}\right)}+(6\times1)={46}=46[/tex]

Average number of flaws for the 20 sheets : [tex]\displaystyle\mu=\frac{46}{{20}}={2.3}[/tex]

Required probability : [tex]=P(X\geq3)=1-P(X<3)[/tex]

[tex]=1-[P(X=0)+P(X=1)+P(X=2)][/tex]

[tex]=1-(\dfrac{e^{-2.3}2.3^0}{0!}+\dfrac{e^{-2.3}2.3^1}{1!}+\dfrac{e^{-2.3}2.3^2}{2!})\ \ \ [\text{Poisson distribution formula: }P(X=x)=\dfrac{e^{-\mu}\mu^x}{x!}]\\\\=1-0.596038825932=0.403961174068\approx0.40396[/tex]

Hence, c. is the correct option.

Answer:

$110.88

Step-by-step explanation:

Let L be the length of the first fence surrounding the garden and P its perimeter.

For a square, P = 4L,

So, L = P/4

Since P = 36 feet,

L = P/4

= 36/4

= 9 feet

Let L' be the length of the second fence. Given that second fence is 3 feet away from the first fence, it follows that L' = L + 3

= 9 + 3

= 12 feet.

So, the perimeter of the second fence is P' = 4L'

= 4 × 12 feet

= 48 feet.

So, the total length of the two fences is P" = P + P'

= 36 feet + 48 feet

= 84 feet

Since the cost of the material to build the two fences is $1.32 per foot, the total cost of the fences is cost per foot × total length of fences = $1.32 × 84 = $110.88

Answer:

2.5/10 = 0.25 cents per ounce

Answer:

15

Step-by-step explanation:

[tex]4x+3-8t\\\\s=7\\\\t=2\\\\4(7)+3-8(2)\\\\28+3-16\\\\28-13\\\\15[/tex]

Answer:

x = 18

Step-by-step explanation:

1/2 x - 7 = 1/3 (x - 12)           Remove the brackets on the right

1/2x - 7 = 1/3 x - 12*1/3

1/2x - 7 = 1/3 x - 4               Subtract 1/3 x from both sides

1/2x - 1/3x - 7 = - 4             Combine like terms on the left

1/6x - 7 = - 4                       Add 7 to both sides

1/6 x = - 4  + 7                    Combine the right side

1/6 x = 3                             Multiply both sides by 6

6 * 1/6x = 3*6

x = 18

Answer:

D.(5,1),(-5,4),(2,1),(5,2)

Answer: 3:1

Step-by-step explanation:

Answer:

The answer is B

Step-by-step explanation:

B says that 80 grams is what you have if x is 0 which makes more sense than the rest

The statement second states "The number of calories in one serving is estimated to be 80 if there are 0 grams of sugar" option (B) is correct.

A mathematical notion called the line of the best fit connects points spread throughout a graph. It's a type of linear regression that uses scatter data to figure out the best way to define the dots' relationship.

We have:

The equation of the line of best fit for the data:

y = 4x + 80

If we put x = 0 then y:

y = 4(0) + 80

y = 80

This means the number of calories in one serving is estimated to be 80 if there are 0 grams of sugar.

Thus, the statement second states "The number of calories in one serving is estimated to be 80 if there are 0 grams of sugar" option (B) is correct.

Learn more about the line of best fit here:

brainly.com/question/14279419

#SPJ2

Answer:

it is a

Step-by-step explanation:

Answer:

a

Step-by-step explalan

Answer:

No solution

Step-by-step explanation:

-(4x - 7) + 1 = 2(5 - 2x)

-4x + 7 + 1 = 10 - 4x

-4x + 8 = 10 - 4x

-4x + 8 ≠ -4x + 10

No solution

Answer:

B.) 24

Step-by-step explanation:

Step-by-step explanation:

First, we have to prove that the sum of 3 consecutive integers is a multiple of 3.

Let x be the smallest of the 3 consecutive integers. We have (x + 1) and (x + 2) as our other consecutive integers.

Notice that x + (x + 1) + (x + 2) = 3x + 3 = 3(x + 1), which is a multiple of 3.

Hence we have proven our point. Back to the question:

The possible sum has to be a multiple of 3. Searching the options, only 44562 is a multiple of 3. (44562 / 3 = 14854) Hence 44562 is the answer. (C)

Answer:

25%

Step-by-step explanation:

Hopefully this is correct!

Answer:

2/9

Step-by-step explanation:

You multiply the probability of the green ball which is 8/12 by the probability of the purple ball which is 4/12 and you get 0.222 which is also 2/9.

Answer:

a) 2(4a + 7b)(4a - 7b)

b) (m - 8n)(m + 8n)

Step-by-step explanation:

[tex]a)32a^{2} - 98b^{2}\\=(2 * 16)a^{2} - (2*49)b^{2}\\=2(16a^{2} -49b^{2})\\=2 ([4a]^{2}-[7b]^{2})\\=2(4a+7b)(4a-7b)[/tex]

[tex]b) m^{2} - 64n^{2}\\= (m)^{2} - (8n)^{2} \\= (m-8n)(m+8n)[/tex]

happy to help:)

Answer:

x<7

I Believe

Answer:

$42.99

Step-by-step explanation:

$39.99 + $3= $42.99

Answer:

42.99

Step-by-step explanation:

I also a agree that kiba is the best

Answer:

130.357 weeks

Step-by-step explanation:

Answer: $7.06

Step-by-step explanation:

$0.98 + $1.19 + $4.89 = $7.06

Answer:

B

Step-by-step explanation:

Step-by-step explanation:

-5.9-2.72

=-2.88

it a write answer

Answer:

A

Step-by-step explanation:

Answer: A

Step-by-step explanation:

Let’s say that she has 10 dimes. 2(10)-5=Q

20-5=15

15 quarters

We doubled her dimes, and subtracted 5 to find quarters.

You can fill anything for D and remind true

Answer:

y = 1x + 4

Step-by-step explanation:

Gives you anything you need. It gives you the slope and the y intercept 4.

Answer:

8

Step-by-step explanation:

SW and UW are equal because they are at the midpoint . A midpoint is a point on a line segment that divides it into two congruent segments.

X=2.5

Step-by-step explanation:

0.5=1/2

5/2 = 2.5

Answer:

24

Step-by-step explanation:

40×60%=240 240÷100= 24%

Answer:

y=3x-1

Step-by-step explanation:

Convert -1/3 to 3, since its perpendicular. then plug (2,5) for y=3x+b. The answer should be y=3x-1