All categories

3 years ago

I don't understand this Problem PLEASE HELPP

Mathematics

2 answers:

statuscvo [17]3 years ago

8 0

32 because she can double back on them and they will count up to her amount of ways that she went

Murrr4er [49]3 years ago

8 0

The answer is deftiley b

You might be interested in

Math question please help

Olin [163]

A) rise = 1

b) run = 6

c)
$m \: = \frac{rise}{run} \\ m = \: \frac{1}{6}$
d) y-intercept = -2

e)
$y = \frac{1}{6}x \: - 2$

6 0

3 years ago

Solve the system using substitution. 6x+8y=30 y=1/2x

sergij07 [2.7K]

Answer:

(3, 1.5)

Step-by-step explanation:

Given the system:

6x + 8y = 30
y=1/2x

Substitute y and solve for x:

6x + 8y = 30
6x + 8(1/2x) = 30
6x + 4x = 30
10x = 30
x = 3

Find y:

y = 1/2x
y = 1/2(3)
y = 1.5

Solution is (3, 1.5)

8 0

3 years ago

A set of data with 100 observati removed, what is the mean of the new data se of 267 There are six outliers in the data set, whi

Andreas93 [3]

Answer:

the mean-average of the data without the outliers is 22572/94 = 240.12766 correct to four digits.

Step-by-step explanation:

If the six outliers are removed, what is the mean average of the remaining data... is ASSUMED what the question was supposed to ask. I'll go out on a limb here, because there really isn't much else you can calculate with just

this much data anyways. I refer to the mean or average as the mean-average....just sayin'

Mean-Average = total/count , which means the total = count * mean-average.

Well, the data containing the outliers has a mean-average of 267 and a count of 100 statistics as given in the problem. So the total of all of the data including the outliers is 26700.

Likewise, the six outliers have a mean-average of 688 as given in the problem.

So the total of the outliers is 688 * 6 = 4128.

As a result, the total of the 94 statistics when the six outliers are rejected is 26700-4128=22572.

6 0

3 years ago

Suppose a bowler claims that her bowling score is not equal to 150 points, on average. Several of her teammates do not believe h

Juliette [100K]

Answer:

The test statistic (z-score) of this one-mean hypothesis test is z=1.823.

Step-by-step explanation:

The null and alternative hypothesis are:

$H_0: \mu=150\\\\H_a: \mu\neq 150$

The significance level is 0.05.

The sample size is n=22.

The sample mean is M=157.

The standard deviation is 18.

The z-score can be calculated as:

$z=\frac{M-\mu}{\sigma/\sqrt{n}}=\frac{157-150}{18/\sqrt{22}} =\frac{7}{3.84} =1.823$

The test statistic (z-score) of this one-mean hypothesis test is z=1.823.

4 0

4 years ago

A rectangular piece of paper has a width that is 3 inches less than its length. It is cut in half along a diagonal to create two

Oliga [24]

Let

x-------> the length of the rectangle

y------> the width of the rectangle

we know that

The area of the rectangle is equal to

$A=x*y$

The area of the two congruent right triangles is equal to the area of the rectangle

$A=2*44=88\ in^{2}$

$88=x*y$ -------> equation A

$y=x-3$ -----> equation B

Substitute equation B in equation A

$x*[x-3]=88$

$x^{2} -3x-88=0$ --------> equation that can be used to solve for the length of the rectangle

Using a graph tool-------> solve the quadratic equation

see the attached figure

The solution is

$x=11\ in$ -----> the length of the rectangle

Find the value of y

$88=11*y$

$y=8\ in$ ----> the width of the rectangle

Statements

case A) The area of the rectangle is $88$ square inches

The statement is True

See the procedure

Case B) The equation $x*[x-3]=44$ can be used to solve for the dimensions of the triangle

The statement is False

Because, the equation $x*[x-3]=88$ can be used to solve for the dimensions of the triangle

case C) The equation $x^{2} -3x-88=0$ can be used to solve for the length of the rectangle

The statement is True

see the procedure

case D)The triangle has a base of $11$ inches and a height of $8$ inches

The statement is True

Because, the base of the triangle is equal to the length of the rectangle and the height of the triangle is equal to the width of the rectangle

case E) The rectangle has a width of $4$ inches

The statement is False

See the procedure

8 0

3 years ago

Read 2 more answers