Selma went shopping and bought identical sweaters for each of 3 friends. If she spent $42, what was the cost of each sweater? Include your equation with your answer.

Answer:

The procedure does results in a binomial distribution.

Step-by-step explanation:

For a binomial probability distribution to be applicable, certain conditions have to be met which are :

There must be a fixed number of observations ; here the number of observations are : 79

All observations must be independent ; the observations are independent ; odd or even

Observations must fall into one of two categories : success category or failure. Here, observations can be odd or even

The probability of success must be equally likely for each observation.

Hence, the procedure results in a binomial probability distribution.

answers in order of the maze:

41, 47, 48, 40, 46, 53, 47, 35, 49 (finish)

Answer:

the percentage that you are trying to find

for ex if you were trying to figure out how to find 4.5 % thank you would put the over 100% and then divide it.

Step-by-step explanation:

Answer:

[tex]T_6 = 37.96875[/tex]

Step-by-step explanation:

Given

[tex]a =5[/tex]

[tex]r = \frac{3}{2}[/tex]

Required

Determine the 6th term

This is calculated as:

[tex]T_n = ar^{n-1[/tex]

Where

[tex]n = 6[/tex]

Substitute [tex]n = 6[/tex], [tex]a =5[/tex] and [tex]r = \frac{3}{2}[/tex]

[tex]T_6 = 5 * (\frac{3}{2})^{6-1[/tex]

[tex]T_6 = 5 * (\frac{3}{2})^{5[/tex]

[tex]T_6 = 5 * (\frac{243}{32})[/tex]

[tex]T_6 = 5 * \frac{243}{32}[/tex]

[tex]T_6 = \frac{5 *243}{32}[/tex]

[tex]T_6 = \frac{1215}{32}[/tex]

[tex]T_6 = 37.96875[/tex]

Step-by-step explanation:

step 1. -6(-2/3 + 2x)

step 2. 12/3 + -12x. distributive property

step 3. 4 - 12x.

Answer:

Step-by-step explanation:

Two faces are 6” by 9”. Two faces are 6” by 2”. Two faces are 9” by 2”.

Surface are = 2*6*9 + 2*6*2 + 2*9*2 = 108 + 24 + 36 = 168 square inches

Answer:

Step-by-step explanation:

If you typed what you wanted then

a+a+1=-135

2a+1=-135

2a=-136

a=-68, so the integers are

-68 and -67

Answer:

i dont know lol

Step-by-step explanation:

why you asking me

Answer:

That is false.

The sum of any two sides in a triangle must be greater than the length of the third side.

We can see that: 7+9 = 16, and 16 is not greater than 18.

So, this is not a triangle.

Let  me know if this helps!

Answer:

Rs. 144

Step-by-step explanation:

ratio = 276/23 = 12

12(12) = 144

Answer:

−35.713332 ; 0.313332

Step-by-step explanation:

Given that:

Sample size, n1 = 11

Sample mean, x1 = 79

Standard deviation, s1 = 18.25

Sample size, n2 = 18

Sample mean, x2 = 96.70

Standard deviation, s2 = 20.25

df = n1 + n2 - 2 ; 11 + 18 - 2 = 27

Tcritical = T0.01, 27 = 2.473

S = sqrt[(s1²/n1) + (s2²/n2)]

S = sqrt[(18.25^2 / 11) + (20.25^2 / 18)]

S = 7.284

(μ1 - μ2) = (x1 - x2) ± Tcritical * S

(μ1 - μ2) = (79 - 96.70) ± 2.473*7.284

(μ1 - μ2) = - 17.7 ± 18.013332

-17.7 - 18.013332 ; - 17.7 + 18.013332

−35.713332 ; 0.313332

Answer:

Using the graph you should understand

The set of values are plotted on the graph given below.

Representation of some datas in 2 or 3 dimensional visual form is called graph.

Plot the values of temperature in y-axis.

Similarly , plot the values of time in x-axis.

The values in x-axis are 6am, 7am, 8am, 9am, 10am, 11am, 12pm, 1pm, 2pm, 3pm, 4pm, 5pm, 6pm, 7pm, 8pm, 9pm, 10pm, 11pm, 12 am & the values of this time in y-axis are 52, 56, 60, 61, 62, 63, 64, 65, 65, 65, 65, 65, 65, 62, 59, 59, 59, 59, 57 respectively.

Learn more about graph here :

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Answer:

not sure

Step-by-step explanation:

Answer:

A number line with a closed circle on 6 and shading to the right

Step-by-step explanation:

Answer:

The least expensive cost = $245.32

Step-by-step explanation:

From the information:

Volume of the rectangular container = 10 m²

Assume the width of the container is = w

The base = 2 × width

= 2(w)

Volume = height × base × width

10 = h × 2w × w

[tex]h = \dfrac{10}{2w^2}[/tex]

[tex]h = \dfrac{5}{w^2}[/tex]

Now, to calculate the area of the base; we have:

[tex]Area = length \times width[/tex]

[tex]Area = 2w \times w[/tex]

[tex]Area = (2w^2) \ m^2[/tex]

[tex]Cost \ of \ base = 15 * 2w^2[/tex]

Cost of base = [tex]30w^2[/tex] --- (1)

[tex]Area \ of \ side = 2 ( height \times length ) + 2( height \times width) \\ \\ = 2 (h \times 2w) + 2(h\times w) \\ \\ = 4hw + 2hw \\ \\ = 6 hw \\ \\ = 6 \times \dfrac{5}{w^2} \times w \\ \\ Area = \dfrac{30 }{w} \ m^2[/tex]

Let's not forget that the cost of the sides = $9 per m²

Thus; the cost of the sides will be [tex]= \$ 9 \times \dfrac{30}{w}[/tex]

the cost of the sides [tex]= \dfrac{\$270}{w}[/tex]

Thus the total cost = cost of base = cost of sides

[tex]C(w) = 30w^2 + \dfrac{270}{w}[/tex]

By differentiation;

[tex]C'(w) = \dfrac{dC}{dw} \\ \\ = 30 \times 2w + 270 ( \dfrac{-1}{w^2}) \\ \\ C'(w) = 60 w - \dfrac{270 }{w^2} \\ \\[/tex]

[tex]\text{To determine the minimum cost:} \\ \\ C'(w) = 0 \\ \\ So, 60 w - \dfrac{270}{w^2}= 0 \\ \\ \text{By integrating w.r.t w} \\ \\ w ( 60 - \dfrac{270}{w^3}) =0 \\ \\ \implies 60 - \dfrac{270}{w^3} \\ \\ w^3 = \dfrac{270}{60} \\ \\ w^3 = \dfrac{9}{2} \\ \\ w = (\dfrac{9}{2})^{1/3} \\ \\ w = 1.6509 \ m[/tex]

From; [tex]C(w) = 30w^2 + \dfrac{270}{w}[/tex]

[tex]Cos t = \dfrac{30 w^3+ 270}{w} \\ \\ =\dfrac{30 (\dfrac{9}{2})+ 270}{1.6509} \\ \\ = \dfrac{135+270}{1.6509} \\ \\ = \dfrac{405}{1.6509} \\ \\ \mathbf{Cost = \$245.32}[/tex]

Answer:

-16 and 6

Step-by-step explanation:

If you went back on a graph from 5 eleven times you would get -16 and if you went forward on a graph you would land on 6. Gl human

Answer:

It may helps you.

Step-by-step explanation:

thanks

please mark me as brainlist

and follow me........

Answer:

56 degrees    :)

Answer:

56 degrees

Step-by-step explanation:

the angle next to 76 degrees is a straight line so it is supplementary, meaning it is 104 degrees.

Because the two lines are parallel, and are cut through a transversal, the angle that we just found is actually equal to 48+x because of alternate interior angles. solving for x we get 104-48 = x

x=56

Answer:

3 is the common denominator  

Answer:

21

Step-by-step explanation:

7, 14, 21

3, 6, 9, 12, 15, 18, 21

Answer:

h(0)=10

h(4)=16

Step-by-step explanation:

for h(0) you would need to do the second equation because it is within the bounds of the variable.

h(0)= 2x^2 - 3x + 10

anything times 0 is 0

so 2(0)^2 - 3(0) + 10=

0-0+10=

10

h(4) would use the third equation since it's the only one that agrees with the variable 4

2^4=16

The best estimate for the cost of the sewing project is between $30 and $40. Hence option 'a' is correct.

Use the concept of fraction defined as:

A fraction is a part of the whole number and a way to split up a number into equal parts. Or, A number which is expressed as a quotient is called a fraction.

It can be written as the form of [tex]p : q[/tex], which is equivalent to p / q.

Given that,

The sewing project also requires 3 1/4 yards of material selling for $3 per yard.

To calculate the cost of the sewing project:

Compute the cost of each type of material separately and then add them together.

For the first type of material:

We need [tex]6\dfrac{1}{8}[/tex] yards, which is equivalent to 6.125 yards.

The cost of this material would be,

6.125 x 4 = $24.50

For the second type of material:

We need [tex]3\dfrac{1}{4}[/tex] yards, which is equivalent to 3.25 yards.

The cost of this material would be,

3.25 x 3 = $9.75.

Now, add the costs of the two types of materials together:

$24.50 + $9.75 = $34.25.

Hence,

The cost of the project would be between $30 and $40,

Which is option a.

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Answer:

Pretzels: 30 ounces, Nuts: 15 ounces

Step-by-step explanation:

Trust me.

Number of ounces of nuts = 30

Number of ounces of pretzels = 15

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

Jamal is making a snack mix with pretzels and nuts.

And, For every ounce of nuts, he will use 2 ounces of pretzels.

Total number of snake mix = 45 ounces

Now,

Let number of ounces of pretzels = y

Let number of ounces of nuts = x

So, We can formulate;

⇒ x = 2y    ... (i)

And, x + y = 45     .... (ii)

Substitute the value of x in equation (ii) , we get;

x + y = 45  

2y + y = 45  

3y = 45

y = 15

And,

x + y = 45  

x + 15 = 45

x = 30

Therefore,

Number of ounces of nuts = 30

Number of ounces of pretzels = 15

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Answer:

0.76 = 76% probability that a tourist visited at least one of these places

Step-by-step explanation:

I am going to solve this question using the probabilities as Venn sets.

We have that:

Event A: Tourist visited Beinjing.

Event B: Tourist visited Xi'an.

61 percent of the tourists to China visited the Forbidden City, the Temple of Heaven, the Great Wall, and other historical sites in or near Beijing.

This means that [tex]P(A) = 0.61[/tex]

33 percent visited Xi'an with its magnificent terracotta soldiers, horses, and chariots, which lay buried for over 2000 years.

This means that [tex]P(B) = 0.33[/tex]

18 percent of the tourists went to both Beijing and Xi'an.

This means that [tex]P(A \cap B) = 0.18[/tex]

What is the probability that a tourist visited at least one of these places?

This is

[tex]P(A \cup B) = P(A) + P(B) - P(A \cap B)[/tex]

We already found these values. So

[tex]P(A \cup B) = 0.61 + 0.33 - 0.18 = 0.76[/tex]

0.76 = 76% probability that a tourist visited at least one of these places

Answer:

Step-by-step explanation:

Both equations have -7y. You can eliminate them by subtracting one equation from the other:

Multiply equation 1 by -1, then add it to equation 2:

-2x + 7y = 74

3x - 7y = -83

———————

x = -9

2x - 7y = -74

2(-9) - 7y = -74

-7y = -56

Y = 8

(x,y) = (-9, 8)

Answer:

same

Step-by-step explanation: