WILL MARK BRAINLEST Select the correct answer.
The stem and leaf plot shows the number of coples of a newly released book ordered from several bookstores.

Answer:

4. D  

A: -25.5=a

B: b=-4

C: c=12

D: d=8

Step-by-step explanation:

4.Between a and d they are the 2 bigger values but D was the greatest out of all of them. - divided by a - will result as a positive and 7/9=0.77 and 19/12 *I looked for the least common factor and multiplied numerator and denominator to 12 depending on the denominators value. Ex: since one of my denominators was 4, I multiply the whole fraction by 3 to get 9/12 and the other was 5/6 times 2 is 10/12 and just add 10/12 by 9/12 which is 19/12.

5.

A: All I did was multiply 8.5 and -3 and get -25.5=a.

B: I add 7 on both sides of the equation and -7 and 7 get canceled off and -11+7=-4. b=4.

C: I multiplied - to -3 and got 3, now I can subtract -3 on both sides. 15-3=12 so c=12.

D. I had to divide by 4 on both sides to get d by itself. 32/4=8 so final answer would be d=8.

Answer:

The approximate estimate of the standard deviation of the speeding ticket fines is of 12.41.

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

Approximately 68% of the measures are within 1 standard deviation of the mean.

Approximately 95% of the measures are within 2 standard deviations of the mean.

Approximately 99.7% of the measures are within 3 standard deviations of the mean.

Middle 68% of speeding ticket fines on a highway fall between 93.18 and 118.

This means that 93.18 is one standard deviation below the mean and 118 is one standard deviation above the mean. That is, the difference between 118 and 93.18 is worth two standard deviations. So

[tex]2s = 118 - 93.18[/tex]

[tex]s = \frac{(118 - 93.18)}{2}[/tex]

[tex]s = 12.41[/tex]

The approximate estimate of the standard deviation of the speeding ticket fines is of 12.41.

Answer:

23

Step-by-step explanation:

I just did it.

Answer:

terminating decimals

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

The answer is B because 2 x -2 + 8 = 4 So it matches up in that equation so answer is b

Answer:

2×+8=4

Step-by-step explanation:

hope it helps.....................

Answer:

Before Tax Price: $110.00

Sale Tax: 6.10% or $6.71

After Tax Price: ($116.71)

Step-by-step explanation:

Answer:

Step-by-step explanation:

Slope intercept form is :

y = mx + b

where m is the slope and b is the y-intercept.

So, given slope and y-intercept, all you have to do is plug in slope for m and y-intercept for b.

1.) y = 3x + 5

2.) y = 2/5x - 10

3.) y = -3/2x - 2

4.) y = 18x

5.) y = -3.253x - 14.159

For question 6, you need to calculate the slope given the two points then plug in the slope and y-intercept to get the equation.

So to find slope, you use the equation below:

slope = (y2 - y1) / (x2 - x1) = (6-0) / (0 - -2) = (6) / (2) =3

6.) y = 3x + 6

Answer:

b

Step-by-step explanation:

divide 1/4 by 20

Answer and Step-By-Step Explanation:

The point shown is marked at (36,82), meaning that the panda is 36 months old and weighs 82 kilograms.  To plot the next point, just go up from 110 on the graph to 90 and mark a point.  (Sorry I tried to put an image but it was extremly blurry.)

Answer:

5.)

r - 14 = 10

r = 10 + 14

r = 24

6.)

x - 8 = 64

x = 64 + 8

x = 72

7.)

3² + 1( 3³ ÷ 3)

9 + 1( 9 ÷ 3)

9 + 1(3)

9 + 3 = 12

8.)

Expression:

An expression is a number, a variable, or acombination of numbers.

e.g. 10x + 63 and 5x - 3

Equation:

An equation is made up of two expressions connected by anequal sign.

e.g. ax² + bx + c = 0

-TheUnknownScientist

Answer:

1 - a > 0

Pls mark me brainliest :))

I did it right on khan so believe me

Answer:

l = 6 cm

w = 5 cm

Step-by-step explanation:

l(2l - 7) = 30

2l^2 - 7l - 30

(2l + 5)(l - 6)

l = 6

2(6) - 7 = 5

Answer: 100

5

Step-by-step explanation:

a) The mean of a normal distribution is also the median. Half the population will have values above the mean. Half of 200 is 100, so ...

... 100 students will have grades above 70%.

b) 84% is 14% above the mean. Each 7% is 1 standard deviation, so 14% is 2 standard deviations above the mean. The empirical rule tells you 95% of the population is within 2 standard deviations of the mean, so about 5% of students (10 students) got grades higher than 84% or lower than 56%. The normal distribution is symmetrical, so we expect about 5 students in each range.

... about 5 students will have grades above 84%.

Answer:

length = 25ft, width = 20ft

Step-by-step explanation:

Let x= width, so length = x+5

Area = l x w  so A = x(x+5)

Since the area is given as 500 sqft, your equation is x(x+5)=500.

Although the numbers are easy  enough to factor in your head, mathematically the equation can be solved as a quadratic, as follows:

x^2 + 5x -500 = 0

Using either factoring or quadratic formula, x = 20 (the other value is negative).  Therefore the width is 20ft and the length is 25ft.

Answer:

This is because the four triangles formed are all identical to each other.

Answer:

125+9x-8=180

6x+13+6y+29=180

Step-by-step explanation:

Answer:

C.  2

Step-by-step explanation:

222 + 22 + 2 = 246

So A = 2

10/80 pounds of cheese

1/8×10=10/80

Answer:

D

Step-by-step explanation:

Table a has a output set for every input, making it a function. However, table B has 2 different outputs for 1 input. Therefore, A is a function and B is not.

Answer:

please????

Step-by-step explanation:

Answer:

E-e-e-e-et-t-t-o.... B-b-b-b-b-baka h-h-huh... g-g-g-g-g-g-gOmensas-s-s-sai S-senpai...

Step-by-step explanation:

uHM yeah

Step-by-step explanation:

answer in decimal form 65.03

answer in mixed number form 65 3/100

Answer:

20meter per second is tw correct answer

20 m/s

Step-by-step explanation:

1km/h = 1000m/3600s = 5m/18s

⇒ 72 × 5 ÷ 18 = 20 (m/s)

Answer:

Y repersents 1

Step-by-step explanation:

Answer:

y= 6 z = 7.5   x = 5(1/3)

Step-by-step explanation:

the ratio  from small to big  multiply by 4/3

                 from big to small multiply by  3/4

Answer:

1,861.1 cubic centimeters

Step-by-step explanation:

Volume of a cylinder is

[tex]v = \pi {r}^{2}h[/tex]

so you would plug it in and solve

[tex]v = \pi ({6.6})^{2}13.6[/tex]

Answer:

12000

Step-by-step explanation:

25/100 = 3000/total people surveyed

total people surveyed =  3000×100 / 25

                                     =   12000 people surveyed

Answer:

g=30y^2+6y^2

Step-by-step explanation:

30 years left after six were taken