pls help me homework

Answer:

11/28

Step-by-step explanation:

1. Add up all of the customers to get the sample size.

    33 + 51 = 84

2. Since we are finding the chance of it being a size small, 33 will be out numerator.

3. Create the final fraction, (33/84)

4. Simplify (11/28)

Hope this helps! Comment if you have any questions. :)

Answer:

11/28

Step-by-step explanation:

First, you add 33 and 51 to get a total of 84 customers. Then you put the number of selections you want (33) as the numerator to 84, to get 33/84. Finally you simplify and get the probability of selecting a customer at random. Answer= 11/28 is your probability

Answer:

1/6 of 48 is 8

1/10 of 40 is 4

3/4 of 24 is 18

2/5 of £65 is £26

7/10 of £96 is £67.2.

Step-by-step explanation:

I did the math.

Complete Question

The dot plot shows the number of participants in each age group in a science fair. Which of the following statements is not supported by the dot plot?

A The range is 6.

B The mean of the ages is about 14.4.

C The mode of the ages is 13.

D The median of the ages is 15.

Answer:

(C) The mode of the ages is 13.

Step-by-step explanation:

The given dot plot is attached.

From the dot plot, there is no participant aged 13. Therefore, the mode of the ages cannot be 13. The mode is actually 15.

Therefore, Option C is not supported by the dot plot.

Answer:

363

Step-by-step explanation:

The n th term of an arithmetic sequence is

[tex]a_{n}[/tex] = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = - 92 and d = - 85 - (- 92) = - 85 + 92 = 7 , thus

[tex]a_{66}[/tex] = - 92 + (65 × 7) = - 92 + 455 = 363

Answer:

363.

Step-by-step explanation:

We see that each term increases by 7.

This is an arithmetic sequence with first term (a1) = -92  and the common difference (d) is 7.

an = a1 + (n - 1)d

a66 = -92 + (66 - 1)7

= -92 + 455

= 363.

The perimeter equals 10.5 cm.

If the smallest side is 3cm, that means that there are two sides that equal 3cm because the third side is larger, so it can't be the smallest. This means we know that the third side must equal 3 × 1.5 = 4.5.

Now we just need to add up all the side lengths, which gives us 3 + 3 + 4.5 = 10.5

I hope this helps!

Answer:

sorry i dont this answer

Answer:

0.79

Step-by-step explanation:

Let's find the area of these two shapes- the square and the circle.

For the square, we know the area is length times width, which is 4x4, which is 16.

For the circle, the area is [tex]\pi r^2\\[/tex] and r is 2, so the area of the circle is 12.56.

Dividing 12.56 by 16, we get a number roughly around 0.79.

Answer:

6.28 yards

Step-by-step explanation:

C=3.14(2 yards)

Answer:

6.28 is the answer

Answer:

A

Step-by-step explanation:

Whenever you square a real number, the result will always be positive, because even if you are squaring a negative number a negative times a negative is a positive. However, when you cube a negative number, the result CAN be negative, because you are multiplying a negative number by itself three times. Therefore, the answer is only A. Hope this helps!

Step-by-step explanation:

I think the answer is one

Answer:

Mean = [26 + 31 + 39 + 32]/4 = 32

MAD = (1/4) x [|26 - 32| + |31 - 32| + |32 - 32| + |39 - 32|] = (1/4) x 14 = 3.5

Hope this helps!

:)

Answer:

3.5 putts

Step-by-step explanation:

Mean: 26 + 31 + 32 + 39 = 128/4 = 32

32 - 26 = 6

32 - 31 = 1

32 - 32 = 0

32 - 39 = 7

Mean Absolute Deviation (MAD): 6 + 1 + 0 + 7 = 14/4 = 3.5

~ hope this helps you, have a good day ~

Answer: [tex]6<z<18[/tex]

Step-by-step explanation:

Use the pythagorean theorem to find z first.

[tex]c^2=a^2+b^2\\c=\sqrt{a^2+b^2}[/tex]

a = 12

b = 6

c = z

[tex]c=\sqrt{(12)^2+(6)^2}\\ c=\sqrt{144+36}\\ c=\sqrt{180} \\c=13.4[/tex]

z is greater than a and b

Original Population = 1236000

Growth Rate = 1.3% per year

Since the population grows at an exponential rate, we can say that the growth of the population is an exponential growth.

Using the formula of exponential growth

population after 10 years = Original population (1-1.3%)^10

= 1236000 {1+(1.3/100)}^10

= 1236000 (1+0.013)^10

= 1236000 × 1.013^10

= 1236000 × 1.13787

= 1406407.32

Answer:

5

Step-by-step explanation:

4*3=12

12+8=20

8/2=4

20/4=5

Answer:

id say D

Step-by-step explanation:

Answer:

3 in.

Step-by-step explanation:

Answer: 19.21

Step-by-step explanation:

12^2 + b^2 = 15^2

subtract 12^2 from both sides

b^2 = 15^2 - 12^2

b^2 = 81

b = 9

credit to melissanix90 for helping

Hope this helps :)

Answer:

B

Step-by-step explanation:

Answer:

I think this is what you want:

Step-by-step explanation:

Answer:

35 square cm

Step-by-step explanation:

[tex]area \: of \: trapezoid = \frac{1}{2} (3 + 4 + 3) \times 7 \\ = \frac{1}{2} \times 10 \times 7 \\ = 5 \times 7 \\ = 35 \: {cm}^{2} [/tex]

Answer:

After 6 seconds, the ball will hit the ground.

Step-by-step explanation:

f(x)=-x^2 + 4x + 12

Since we want to see when it touches the ground, the height must be equal to 0, so f(x) has to equal 0.

0=-x^2 + 4x + 12

If you factor this equation, you'd get:

(-x + 6)(x + 2) = 0

We get the 2 and the 6 from the factors of 12. The two factors of 12 have to be able to add or subtract into 4, and in this case, 6-2 is 4. (If you multiply this equation out, you'd get the same one you started with)

Since we need it to equal 0, the way to multiple to 0 is to have a zero itself. This means that either (-x+6) is equal to 0 or (x+2) is equal to 0. The only x values that satisfy this is 6 and -2. You can't have -2 seconds after, so it has to be 6.

Hope that helps.

Answer:

B. y=[x]+4

when you plug it into the calculator you get b

Answer:

D. 18x-0.08y

Step-by-step explanation:

He will make 18 monthly payments of x dollars on the total amount leftover after paying an 8% down payment. So his finance charge is payment minus down payment: 18x-0.08y

The expression correctly represents Adam's finance charge is

C. 18x-0.92y.

A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.

A percentage is a value per hundredth. Percentages can be converted into decimals and fractions by dividing the percentage value by a hundred.

From, The given information,

8% of the downpayment is (8/100)×y = 0.08y and te total monthly payment is 18x.

Therefore,

The phrase that accurately describes Adam's finance charge is,

y = 0.08y + 18x.

y - 0.08y = 18x.

0.92y = 18x.

18x - 0.92y = 0.

learn more about numerical expressions here :

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Answer:

The answer is A.

Step-by-step explanation:

You have to use the formula of volume of cone,

[tex]v = \frac{1}{3} \times \pi \times {r}^{2} \times h[/tex]

Given that the diameter of cone is 10 units so the radius is 5. Then substitute the followung values into the formula :

Let r = 5 units,

Let h = 45 units,

[tex]v = \frac{1}{3} \times \pi \times {5}^{2} \times 45[/tex]

[tex]v = \frac{1}{3} \times \pi \times 1125[/tex]

[tex]v = 375\pi \: \: {units}^{3} [/tex]

Answer:

[tex]375\pi \: \: units ^{3} [/tex]

Step-by-step explanation:

[tex]v = \pi {r}^{2} \frac{h}{3} \\ =\pi \times 5 \times 5 \times \frac{45}{3} \\ = \pi \times 25 \times 15 \\ = 375\pi \: \: units ^{3} [/tex]

Answer:

2 1/4

Step-by-step explanation:

- 5 1/4- [-7 1/2]

Get a common denominator of 4

- 5 1/4- [-7 1/2*2/2]

- 5 1/4- [-7 2/4]

We know subtracting a negative is adding

- 5 1/4 + [7 2/4]

Rewriting

7 2/4 - 5 1/4

Subtract the whole numbers

7-5 =2

Subtract the fractions

2/4 -1/4 = 1/4

2 1/4

Answer:

2 ¼

Step-by-step explanation:

-5 ¼ - [-7 ½]

-5 ¼ + 7 ½

7½ - 5¼

(7-5) + (½-¼)

2 + ¼

2 ¼

Answer:

The range of x values for which y is unique is 2·π

Step-by-step explanation:

For a function j: X → Y to be invertible, we have that for every y in Y, there is associated only one x which is an element of x

Hence, f(x) = cos(x - π/4) gives

the x intercept at two penultimate points of the graph of cos(x - π/4) are;

x = 2.36, and x = 8.64

x = 3/4·π, and x = 2.75·π = [tex]2\tfrac{3}{4}\cdot \pi[/tex]

Hence the range of x values for which y is unique is presented as follows

[tex]2\tfrac{3}{4}\cdot \pi - \frac{3}{4}\cdot \pi = 2}\cdot \pi[/tex]

The range of x values for which y is unique = 2·π.

$3828.85 is in the account at the end of 5 years which is correct option(B).

What is Compound interest?

Compound interest is defined as interest paid on the original principal and the interest earn on interest of principal.

p = $3000

r = 5%

t = 5 years

[tex]A = p(1+\frac{r}{100} )^t[/tex]

substitue the values of p,r and t in formula,

[tex]A = 3000(1+\frac{5}{100} )^5[/tex]

[tex]A = 3000(1+0.05} )^5[/tex]

[tex]A = 3000(1.05} )^5[/tex]

A = 3000(1.276)

A = 3828.85

Hence, $3828.85 is in the account at the end of 5 years.

Learn more about Compound interest

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Answer:

the area would be 15 square units.

All you have to do is find the length and the height from the points given.

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

3x^2 + 2(y-1)/x+y^2

3(4)^2 + 2(3-1)/4+3^2

3x16+2x2/4+9

48+4/13

52/13

4