If 7 out of 10 people brush thier teeth every night, which of the following represents the percent of people who do not brush thier teeth every night?

Answer:

a. Linear

Step-by-step explanation:

The difference is equal between y- values (0.480)

So it is linear change and linear function

Answer:

Linear

Step-by-step explanation:

The hypothese is the function is linear. Lets prove it .

If we divide the difference of 2 any function's values by the difference of the corresponding argument's values we will get the same ratio 0.48(for instance 19.210-18.250=0.96 delete be 2-0=2 will get 0.48)  .

Lets  calculate any other pair of y (function) and x ( argument) :

(20.170-18.730)/(4-1)=1.44/3=48 as we can see we'll get the same ratio 0.48.

That means that function is linear

Answer:

24

Step-by-step explanation:

Here we will use Thales theorem : X is the missing side

Answer:

b: 4

Step-by-step explanation:

i took the test on edge 2020

The gallons of gasoline the car has left after it has traveled 330 miles is 4 gallons so option (B) will be correct.

Determine the known quantities and designate the unknown quantity as a variable while trying to set up or construct a linear equation to fit a real-world application.

In other words, an equation is a set of variables that are constrained through a situation or case.

Given the table of the number of miles and gallons.

If we take two points of the number of miles and gallons.

Then,

1 st point = ( 0 ,15 )

2 nd point = ( 90 , 12)

Now since the relation is linear which can be seen by data.

So,

Linear equation joining points 1st and 2nd is

y - 15 = [(12-15)/(90-0)](x - 0)

y - 15 = -x/30

y = (450 - x)/30

So,

At x = 330 miles

y = (450 - 330 )/30

y = 4 gallons

Hence "The gallons of gasoline the car has left after it has traveled 330 miles is 4 gallons".

For more about the equation,

https://brainly.com/question/10413253

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Answer:

This is an arithmetic fraction written under the line that indicates the equal part, the divisor.

Step-by-step explanation:

Answer:denominator is the lower part of a fraction.

Step-by-step explanation:

Feel pleasure to help u...

Answer:

1.     [tex]16 = 4^2[/tex]

2.    [tex]2 = {16}^{\frac{1}{4}}[/tex]

3.    [tex]log_2 y=z[/tex]

Step-by-step explanation:

[tex]1.\ log_2 16=4[/tex]

Write in exponential form

Using the law of logarithm which says if

[tex]log_b A=x[/tex]

then

[tex]A = b^x[/tex]

By comparison;

A = 16; b = 2 and x = 4

The expression [tex]log_2 16=4[/tex] becomes

[tex]16 = 4^2[/tex]

[tex]2.\ log_{16} 2=\frac{1}{4}[/tex]

Write in exponential form

Applying the same law as used in (1) above;

A = 2; b = 16 and [tex]x = \frac{1}{4}[/tex]

The expression [tex]log_{16} 2=\frac{1}{4}[/tex] becomes

[tex]2 = {16}^{\frac{1}{4}}[/tex]

[tex]3.\ 2^z=y[/tex]

Write in logarithm form

Using the law of logarithm which says if

[tex]b^x =A[/tex]

then

[tex]log_b A=x[/tex]

By comparison;

b = 2; x = z and A = y

The expression [tex]2^z=y[/tex] becomes

[tex]log_2 y=z[/tex]

The given equations written in exponential or logarithmic form as the case is is;

1) 2⁴ = 16

2)16^(¼) = 2

3) Log_2_y = z

Usually in logarithmic exponential functions expressions;

When we have;

Log_n_Y = 2

It means that; n² = Y

Applying that same principle to our question means that;

1) log_2_16 = 4

This will now be;

2⁴ = 16

2) log_16_2 = ¼

This will now be;

16^(¼) = 2

3) For 2^(z) = y

We have;

Log_2_y = z

Read more about properties of logarithmic exponents at; https://brainly.com/question/10005276

Answer:

D

Step-by-step explanation:

In scientific notation, the number that is being multiplied by the power of ten must be greater than or equal to 1 and less than 10. This eliminates options B, C, and E. The rest of the options are all 5.79 times something. To find that something, we can do 5,790,000 / 5.79 = 1000000 = 10⁶. This means that the answer is D.

Answer:

67 inches

Step-by-step explanation:

Let's call the height of Louise 'L', the height of Miriam 'M' and the height of Jeffery 'J'.

Then, we can write the following equations and inequations:

[tex]L \leq M - 1[/tex]

[tex]L \geq J + 2[/tex]

[tex]J = 64[/tex]

[tex]M \leq J + 5[/tex]

Substituting J in the second and four inequations, we have:

[tex]L \geq 66[/tex]

[tex]M \leq 69[/tex]

If we assume the maximum value for M, in the first inequation we have that:

[tex]L \leq 68[/tex]

So the height of Uncle Louise is greater than or equal 66, and lesser than or equal 68, so his height could be 67 inches for example.

Answer:

all real numbers

Step-by-step explanation:

Answer:

C. All real numbers

Step-by-step explanation:

x goes forever in both the positive and negative directions, so the domain is all real numbers.

Answer:

Step-by-step explanation:

percentage is per 100.

If we have to find x as percentage of y then

formula for percentage is given by = x/y*100

_______________________________________________

Given

total no. of shares = 50,000

Share bought by investor = 1,000

Percentage of share bought by investor

= Share bought by investor/total no. of shares *100

= (1000/50000)*100 = 2%.

It means that if  there are 100 shares for company then investor owns 2 shares of the company. This makes the qualitative analysis easy.

2% percent of the company does the investor own.

Answer:

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

Step-by-step explanation:

As we go from (1, 3) to (5, 1), we see that x (the run) increases by 4 and y (the rise) decreases by 2.  Hence, the slope is m = rise / run = 2/4, or m = 1/2.

Then the desired point slope equation is  y - 3 = (1/2)(x - 1).

Answer:

Sin(u-v)= (-119/169)

Step-by-step explanation:

Sin(a-b)= Sinacosb-cosasinb

Sin(u-v)= sinucosv-cosusinv

Sinu= 5/13

U = sin^-1(5/13)

U= 22.62

Sinv= 12/13

V= sin^-1(12/13)

V= 67.38

Fr right angle triangle

If sin u = 5/13

Cos u = 12/13

If sin v = 12/13

Cos v= 5/13

Sin(u-v)= sinucosv-cosusinv

Sin(u-v)=(5/13)*(5/13) -(12/13)*(12/13)

Sin(u-v)= 25/169 - 144/169

Sin(u-v) = (25-144)/169

Sin(u-v)= (-119/169)

Answer:

- 220° and 500°

Step-by-step explanation:

To find the coterminal angles add / subtract 360°, that is

140° - 360° = - 220°

140° + 360° = 500°

Answer:

- 220° and 500°

Step-by-step explanation:

Answer:

I guess that the area we care about is the yellow area, delimited by the functions.

f(x) = 8*(x)^(1/4)

and the line with the slope s= 8/1 = 8 (as the line goes through the points (0,0) and (1, 8)).

g(x) = 8*x

then we want tofind the area between x = 0 and x = 1, of f(x) - g(x)

then we have:

[tex]I = \int\limits^1_0 {f(x)} \, dx = \int\limits^1_0 {8*\sqrt[4]{x} )} \, dx = (8*(4/5)*\sqrt[4]{1^5} - 8*(4/5)*\sqrt[4]{0^5}) = 6.4[/tex]

now, for the area under the g(x) we have:

[tex]I2 = \int\limits^1_0 {g(x)} \, dx = \int\limits^1_0 {8x} \, dx = (8/2)*1^2 - (8/2)*0^2 = 4.[/tex]

then I - I2 = 6.4 - 4 = 2.4

The yellow area is 2.4

And then, if we rotate this about the line AB, the volume will be:

B = 2*pi*2.4 = 2*3.14*2.4 = 15.075

The figure will be something like a half spheroid, with a hole in the shape of a cone inside of it.

Answer:

  PR, PW, RW

Step-by-step explanation:

The sides of a triangle are named by naming the vertices at either end.

Triangle PWR has vertices P, W, R. The sides connecting these are named ...

   PW, WR, RP

Any name can have the letters reversed. That is, PR names the same segment that RP does.

Answer:

Step-by-step explanation:

To find the relationship between the given lines, we have to find the slope of both lines using slope formula, which is

So for AB, we will get

And for CD , we will get

Since the slopes of the two lines are equal , and when slopes are equal , lines are parallel .

Answer:

Complementary angles are angles that add up to 90°

To find the complementary angle for an angle of 70° subtract it from 90°

That's

90° - 70° = 20

Hope this helps

Answer:

20

Step-by-step explanation:

Complementary angles add to 90 degrees

70 +x = 90

Subtract 70 from each side

70+x-70 = 90-70

x = 20

The complement is 20

Answer: 108 inches

Step-by-step explanation: The answer would be 108 inches because if you multiply the number that coverts a inch into a foot it would be 12 because 12 inches is equivalent to 1 foot. So you know that 1 foot is equal to 12 inches so you multiply the number of feet by 12. You expression is 9 times 12 and after you multiply the two numbers you get 108 inches.

Answer: 108 inches

Step-by-step explanation: To convert 9 feet into inches, we use the conversion factor for feet and inches which is 12 inches = 1 foot.

Next, notice that we're going from a

larger unit, feet, to a smaller unit, inches.

When we go from a larger unit to a smaller unit, we

multiply 9 by the conversion factor, 12 to get 108.

So 9 feet = 108 inches.

Answer:

(115.2642, 222.7358).

Step-by-step explanation:

Given data:

type A: n_1=60, xbar_1=1827, s_1=168

type B: n_2=180, xbar_2=1658, s_2=225

n_1 = sample size 1, n_2= sample size 2

xbar_1, xbar_2 are mean life of sample 1 and 2 respectively. Similarly, s_1 and s_2 are standard deviation of 1,2.

a=0.05, |Z(0.025)|=1.96 (from the  standard normal table)

So 95% CI is

(xbar_1 -xbar_2) ± Z×√[s1^2/n1 + s2^2/n2]

=(1827-1658) ± 1.96×sqrt(168^2/60 + 225^2/180)

= (115.2642, 222.7358).

Answer:

(a) 780 students and 960 non-students  

(b) No. The maximum revenue is RM9000 from 1200 non-students.

(c). Revenue is maximum of RM9000 at 1200 non-students, decreasing by RM2.50 per student to a minimum of RM6000 at 1200 students

Step-by-step explanation:

 Let x = IIUM students and

and  y = non-IIUM students

You have two conditions

(a)          x +         y = total vehicles parked

(b) 5.00x + 7.50y = total gross receipts

(a) Wednesday

From your table,  

       x +          y = 1740

5.00x + 7.70y = RM11 100  

Solve the simultaneous equations

[tex]\begin{array}{rrcrl}(1) & x + y & = &1740&\\(2) & 5.00x + 7.50y & = & 11 100\\(3)& 5.00x + 5.00y & = & 8700 & \text{Multiplied (1) by 5}\\&2.50 y & = &2400 &\text{Subtracted (3) from (2)}\\(4)&y& = &\mathbf{960} &\text{Divided each side by 2.50}\\& x +960& = &1740& \text{Substituted (4) into (1)}\\& x& = &\mathbf{780}& \\\end{array}\\\text{There are $\large \boxed{\textbf{780 students and 960 non-students}}$}[/tex]

(b) Can 1200 vehicles bring in RM10000?

No. Even if all the cars were from non-students, the most you could get is  

1200 × 7.50 = RM9000

(c) Possible combinations for 1200 vehicles  

Revenue = 5.00x + 7.50y = 5.00x + 7.50(1200 -x) = 5.00x + 9000 - 7.50x =  

Revenue = 9000 - 2.50x

The maximum revenue of RM9000 occurs when there are no student cars and 1200 non-student cars.

For each student car that enters and displaces a non-student, the revenue drops by RM2.50.

Finally. when there are 1200 student cars and no non-students, the revenue has dropped to a minimum of RM6000.  

Answer:

WZ ≈ 16.4 cm

Step-by-step explanation:

Step 1: Find length XZ

tan40° = XZ/15

15tan40° = XZ

XZ = 12.5865

Step 2: Find WZ

sin50° = 12.5865/WZ

WZsin50° = 12.5865

WZ = 12.5865/sin50°

WZ = 16.4305

WZ ≈ 16.4 cm

Answer:

lateral area =150 square feet

Step-by-step explanation:

lateral area =(perimieter of prism base) times the height of the prism

so, the perimeter of the base is 9 ft*2 + 6 ft*2 which equals 30 ft

then you multiply the perimeter of the base by the height of the prism

so, height of prism =5 ft, so 5 ft times 30 ft =150 feet

therefor, the lateral area of the prism = 150 feet squared

An event that is impossible has a probability of 0

An event that is certain to happen has a probability of 1

The probability scales from 0 to 1, referring from no chance to will happen.

Answer:

If the value of n gests smaller then the distribution of X would be more skewed, that's a property of the binomial distribution

Step-by-step explanation:

For this problem we are assumeing that the random variable X is :

[tex] X \sim Bin(n,p)[/tex]

If the value of n gests smaller then the distribution of X would be more skewed, that's a property of the binomial distribution and if we don't satisfy this two conditions:

[tex] n p>10[/tex]

[tex]n(1-p) >10[/tex]

Then we can't use the normal approximation

Answer: 8.6602540378

Step-by-step explanation:

Based on pythagorean’s theorem we have:

[tex]\sqrt{14^{2}-11^{2} } =\sqrt{75}=8.66025[/tex]

Answer:

[tex]x=-1[/tex]

Step-by-step explanation:

Cross multiply.

10(4x + 1) = 15(2x)

Expand brackets.

40x + 10 = 30x

Add -30x and 10 on both sides.

40x - 30x = -10

10x = -10

Divide both sides by 10.

10/10x = -10/10

x = -1

Answer:

12.5

Step-by-step explanation:

This is the answer!

Answer:

50%

Step-by-step explanation:

Total Cards = 4

6 or even cards = 2

P( 6 or even) = 2/4

=> 1/2

In %age:

50%

Answer:

x = 9

Step-by-step explanation:

If p and q are parallel lines then the two angles are alternate interior angles and are equal

9x +8 = 15x - 46

Subtract 9x from each side

9x-9x +8 = 15x -9x - 46

8 = 6x - 46

Add 46 to each side

54 = 6x

Divide by 6

54/6 = 6x/6

9 =x

Answer:

Explanation:

This is because you have to first make the equations equal to each other. You do this because you can see that the angles are equal to each other meaning that they are the same amount of degrees. So the equation you will have is (9x + 8) = (15x - 46).

You can take off the parenthesis.

Subtract 8 from both sides.

This will lead to

Then you have to subtract 15x from both sides.

This will have a result of

When you do this you can see that there are 2 negatives. You can cancel these out. So it will look like

Finally, you have to simplify. Divide both sides by 6.

The final result is

Hope this helped

Answer:

C. The term average is not used in statistics. The term "mean" should be used for the result obtained by adding all of the sample values and dividing by the total number of sample values.

Step-by-step explanation:

In colloquial language, the average is the result obtained when we add all the sample values and divide by the total number of sample values.

However, in statistics, the term which is used to represent this calculation is the "mean" of the sample data. The term average is not used.

The correct option is C.

Answer:

x = 25; both labeled angles are 65º

Step-by-step explanation:

To find the value of x, recall that the angles formed by two parallel lines on the same line are equal if they correspond to each other.

In the figure given above, we have two parallel line given. The angle formed by each parallel line is corresponding to the other. Therefore, both angles formed are equal.

Thus,

(3x - 10)° = (x + 40)°

Solve for x

3x - 10 = x + 40

Subtract x from both sides

3x - 10 - x = x + 40 - x

3x - x - 10 = x - x + 40

2x - 10 = 40

Add 10 to both sides

2x - 10 + 10 = 40 + 10

2x = 50

Divide both sides by 2

2x/2 = 50/2

x = 25

*Plug in the value of x to find the measure of each labelled angles:

(3x - 10)° = 3(25) - 10 = 75 - 10 = 65°

(x + 40)° = 25 + 40 = 65°

Answer:

The first step would be to add 22 to both sides to the equation.