Express 1.3 x 0.4 as a percent.

Answer:

Diego and Mai are thinking of the slopes of the graphs!

Step-by-step explanation:

The slopes of the graphs are as follows:

Right: Negative slope

Center: Zero slope

Left: Positive slope

Therefore, you can conclude that the graphs are organized in order of slope.

(Let me know if you need more explanation as to why we know the slopes are positive, negative, zero, etc.)

Answer: The radius of the circle in 11

Final answer:

The equation is in the standard form (x - h)² + (y - k)² = r², where r is the radius. Thus, the square root of the constant term 121 would give the radius, which is 11.

Explanation:

To find the radius from an equation of a circle in the form (x - h)² + (y - k)² = r², where (h, k) is the center of the circle, and r is the radius, we need to compare it to the given equation.

As per the standard form, the number on the right side of the equation is r², the square of the radius.

We have (x - 3)² + (4 + 4)² = 121, which can be written as (x - 3)² + (8 - 0)² = 121, considering (3,0) as the center of the circle, the radius would be the square root of 121, which is 11.

Answer:

y=1/2-3

Step-by-step explanation:

x-2y=6

-2y=-x+6

y=1/2-3

or

-2y=6

y=-3

x=6

Answer:

The correct answers are 4A+B, 1.5B, 12A

Step-by-step explanation:

The area of the whole figure is 4A+B cm²

Area is defined as the total space taken up by a flat (2-D) surface or shape of an object.

The space enclosed by the boundary of a plane figure is called its area.

The area of a figure is the number of unit squares that cover the surface of a closed figure.

Given that, a figure having the area of one of the small right triangles outlined in blue is A cm² while the area of the square outlined in red is B cm²

The total area = the sum of the area of the 4 triangles and the square,

= A + A + A + A + B = 4A + b

Hence, the area of the whole figure is 4A+B cm²

Learn more about areas, click;

https://brainly.com/question/27683633

#SPJ7

The complete question is attached

Answer:

all real number

Step-by-step explanation:

since h(x) is polynomial function

Final answer:

The domain of the function h(x)=x-4 is all real numbers, as there are no restrictions on the value of x.

Explanation:

The domain of a function represents all the possible values that can be input into the function. For the function h(x)=x-4, there are no restrictions on the value of x, since x represents a real number and there are no denominators or square roots to consider.

Therefore, the function h(x)=x-4 is defined for all real numbers, making the domain of h to be all real numbers, which is often denoted by the symbol (-∞, +∞) or simply written as 'all real numbers'.

Given Information:  

Number of lithium batteries = n = 16

Mean life of lithium batteries = μ = 645 hours

Standard deviation of lithium batteries = σ = 31 hours

Confidence level = 95%  

Required Information:  

Confidence Interval = ?

Answer:  

[tex]CI = 628.5 \: to \: 661.5 \: hours[/tex]

Step-by-step explanation:  

The confidence interval is given by

[tex]CI = \mu \pm t_{\alpha/2} (\frac{\sigma}{\sqrt{n}})[/tex]

Where μ is the mean life of lithium batteries, σ is the standard deviation, n is number of lithium batteries selected, and t is the critical value from the t-table with significance level of

tα/2 = (1 - 0.95) = 0.05/2 = 0.025

and the degree of freedom is

DoF = n - 1 = 16 - 1 = 15

The critical value (tα/2) at 15 DoF is equal to 2.131 (from the t-table)

[tex]CI = 645 \pm 2.131(\frac{31}{\sqrt{16}})[/tex]

[tex]CI = 645 \pm 2.131(7.75})[/tex]

[tex]CI = 645 \pm 16.515[/tex]

[tex]CI = 645 - 16.515 \: and \: 645 + 16.515[/tex]

[tex]CI = 628.5 \: to \: 661.5 \: hours[/tex]

Therefore, the 95% confidence interval is 628.5 to 661.5 hours

What does it mean?

It means that we are 95% confident that the mean life of 16 lithium batteries is within the interval of (628.5 to 661.5 hours)

A. 45 is your answer

The third angle is 45°.

Option A is the correct answer.

It is a two-dimensional figure which has three sides and the sum of the three angles is equal to 180 degrees.

We have,

The two angles in the triangle are 80 and 55.

Now,

The sum of all the angles in the triangle is 180.

Third angle = x

So,

80 + 55 + x = 180

135 + x = 180

Subtract 135 on both sides.

x = 180 - 135

x = 45

Thus,

The third angle is 45°.

Learn more about triangles here:

https://brainly.com/question/25950519

#SPJ6

Answer:

A.4.9 x 5.1 x 5.0

Step-by-step explanation:

Answer:

Step-by-step explanation:

To find slope you have to take y2-y1 over x2-x1

y2=your second y poiny

y1=first y point

x2=second x point

x1=first x point

Since it is minus a negative you get to change it to a plus sign, because they cancel each other out.

3 + 7  

____

-4-0

10/-4

This isn't quite simplified, so you find a common factor for the numerator (top number) and the denominator (bottom number). You should note the number has to go into both numbers, not just one. The largest common factor would be 2 in this case.

10/2=5

-4/2=-2  

Now your simplified answer would be 5/2  

The slope of the line will be "[tex]-\frac{5}{2}[/tex]".

The given points are:

The slope (m) will be:

= [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

By substituting the given values, we get

= [tex]\frac{3-(-7)}{-4-0}[/tex]

= [tex]\frac{3+7}{-4}[/tex]

= [tex]-\frac{10}{4}[/tex]

= [tex]-\frac{5}{2}[/tex]

Thus the above slope is right.

Learn more about slope here:

https://brainly.com/question/18735174

Answer:

D. 216 cubic centimetres.

Step-by-step explanation:

The answer is D, because 6 to the 3rd power is 216.  therefore, if the side length is 6, the answer is 216.

Answer: Zero

Step-by-step explanation:

A negative slope is a linear line that is sloped from the upper left to the bottem right. A positive is the oppisate and an undefined line is vertical. A zero line is horizontal.

The word describes the slope of the line is zero

The slope of the line is defined as its inclination towards the x axis.

In the given figure,

So, the slope will be zero

Find more about "Slope" here: https://brainly.com/question/3493733

#SPJ2

Answer:

Exponential Decay

Step-by-step explanation:

The description that matches the function represented by the values is A. exponential decay.

Consider the function: [tex]y = a(1\pm r)^m[/tex]

where m is the number of times this growth/decay occurs, a = initial amount, and r = fraction by which this growth/decay occurs.

If there is plus sign, so there is exponential growth happening by r fraction or 100r %

If there is negative sign, so there is exponential decay happening by r fraction or 100r %

The given function is

[tex]y = a(1\pm r)^m\\972 = 1(1\pm r)^m[/tex]

The table shows the exponential decay function.

Learn more about exponential growth and decay here:

https://brainly.com/question/2193820

#SPJ2

Answer

206.02

Step-by-step explanation:

r=d/2

=16.2/2=8.1

3.12*8.1*8.1=206.0154

to the nearest hundred=206.02

The area of the circle with a diameter of 16.2 inches is approximately 206.24 square inches.

The area of a circle can be found using the formula A = πr^2, where π represents the mathematical constant pi and r is the radius of the circle. Since the diameter of the circle is given as 16.2 inches, we can find the radius by dividing the diameter by 2: r = 16.2 / 2 = 8.1 inches. Now we can plug in this value into the formula to find the area: A = 3.14 * (8.1)^2 = 206.2446 square inches. Rounding this to the nearest hundredth, the area of the circle is approximately 206.24 square inches.

Answer:

c

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

True

Step-by-step explanation:

Meters, centimeters, inches, miles, etc. are units of length.

Answer:

84

Step-by-step explanation:

4 test grades with an average of 80 would have a total of 80x4=320.

75+83+78=236

320-236=84

What is the value of x and the length of segment DE?

StartFraction 5 Over 9 EndFraction = StartFraction 9 Over 2 x + 3 EndFraction

10x + 15 = 9(9)

Answer: Keep it simple

x =  

6.6

Length of  =  

16.2

 units

The value of x and one of the sides of the triangle are needed.

[tex]x=6.6\ \text{units}[/tex]

[tex]DE=16.2\ \text{units}[/tex]

[tex]CD=5\ \text{units}[/tex]

[tex]FD=9\ \text{units}[/tex]

[tex]DE=2x+3[/tex]

Finding CF

[tex]CF^2=CD^2+FD^2\\\Rightarrow CF^2=106\ \text{units}[/tex]

In triangle DEF

[tex]FE^2=DE^2+DF^2\\\Rightarrow FE^2=(2x+3)^2+81[/tex]

In triangle CFE

[tex]CE^2=CF^2+FE^2\\\Rightarrow (5+2x+3)^2=106+(2x+3)^2+81\\\Rightarrow (8+2x)^2=187+(2x+3)^2\\\Rightarrow 64+4x^2+32x=187+4x^2+9+12x\\\Rightarrow x=\dfrac{187-64+9}{32-12}\\\Rightarrow x=6.6\ \text{units}[/tex]

[tex]DE=2x+3=2\times 6.6+3\\\Rightarrow DE=16.2\ \text{units}[/tex]

Learn more:

https://brainly.com/question/17307037?referrer=searchResults

Answer:

x=8

Step-by-step explanation:

If you subtract 3 from both sides then subtract -x/2 from both sides your equation should be simplified down to

-x/2 = -4. if you multiply the 2 on both sides the equation is -x=-8. but now you have to divide by negative 1 on both sides and you get x=8

Answer:

Step-by-step explanation:

hello :

(4x+3)(2x-5)=0

4x+3=0 or 2x-5=0

x= -3/4 or x=5/2

(4x+3)(2x-5) =  8x²-14x-15

Step-by-step explanation:

Given,

(4x+3)(2x-5)

To find the value of the given multiplication.

Formula

(a+b)(c+d)

= a(c+d)+b(c+d) = ac+ad+bc+bd

Now,

(4x+3)(2x-5)

= 4x(2x-5)+3(2x-5)

= 8x²-20x+6x-15

= 8x²-14x-15

Answer: 8 First class tickets

Step-by-step explanation:

You can set up a system of equations for this problem. Let x = number of coach tickets and y = number of first class tickets. Then:

330x + 1220y = 12730    (cost of coach tickets plus cost of first class tickets is total budget)

x + y = 17    (number of coach tickets plus number of first class tickets is total number of people)

Solve the second equation for y to get y = 17 - x, then plug that into the first equation and solve for x:

330x + 1220(17 - x) = 12730

330x + 20740 - 1220x = 12730

-890x + 20740 = 12730

-890x = -8010

x = 9

Sarah bought x = 9 coach tickets. Plug that into the second equation and solve for y:

9 + y = 17

y = 8

Sarah bought y = 8 first class tickets.

Answer:

6  first class 5 coach

Step-by-step explanation:

msg me if you need me to explain it

Answer:58

Step-by-step explanation:

Answer:

58

Step-by-step explanation:

since it equals to 90 you subtract that with 32

which gives you 58

Answer:

8/19

Step-by-step explanation:

Total = 5 + 6 + 8 = 19

P(blue) = 8/19

Or 0.4210526316

Final answer:

To find the length of the hypotenuse in a right triangle with legs of 7 ft and 10 ft, we use the Pythagorean theorem, resulting in a hypotenuse of approximately 12.21 feet.

Explanation:

The student is asking about the length of the hypotenuse in a right triangle where one leg is 7 ft and the other is 10 ft. To find the hypotenuse, we use the Pythagorean theorem which states a² + b² = c², where a and b are the lengths of the legs of the triangle, and c is the length of the hypotenuse.

For this triangle, the calculations would be:

a² = 7² = 49

b² = 10² = 100

a² + b² = c²

49 + 100 = c²

149 = c²

c = [tex]\sqrt{149[/tex]

c = 12.21 ft (rounded to two decimal places)

Therefore, the length of the hypotenuse of the triangle is approximately 12.21 feet.

Answer:15

15

7 cupcakes=17.5

40-17.5=22.5

donuts are 1.50

22.5 divided by 1.5 is 15

The maximum number of donuts Cooper can buy is 15.

Given that, the cost of cupcakes = $2.50 and the cost of donuts = $1.50.

Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.

Let the number of cupcakes be x and the number of donuts be y.

Cooper wans to buy a minimum of 18 cupcakes and donuts altogether

That is, x+y≥18

Cooper has $40 to spend on cupcakes and donuts.

So, 2.50x+1.50y≤40

Cooper decided to buy 7 cupcakes

Then number of donuts will be

2.50(7)+1.50y≤40

⇒17.5+1.50y≤40

Subtract 17.5 on both the sides of a inequality, we get

17.5+1.50y-17.50≤40-17.50

⇒1.50y≤22.5

Divide 1.50 on both the sides of a inequality, we get

1.50y/1.50≤22.5/1.50

⇒y≤15

Therefore, the maximum number of donuts Cooper can buy is 15.

To learn more about the inequalities visit:

https://brainly.com/question/20383699.

#SPJ2

=(2p - 29)/4= 4

=2p - 29 = 16

=2p = 16+29

=2p = 45

=p= 45/2

= p=22.5

Hope this will help u mate :)

Answer:

p=22.5

Step-by-step explanation:

Answer:

Step-by-step explanation:

hello :

here is an solution :

The probability that a student chosen at random plays football or cricket or both is approximately 0.8667, or 86.67%, after considering the number of students playing each sport and accounting for those who play both.

To calculate the probability that a student chosen at random plays football or cricket or both, we can use the concept of probability along with a Venn diagram to organize our information.

First, we need to calculate the total number of students that play at least one of the sports. We know that 8 students play both football and cricket, 14 students play football, and 20 students play cricket. However, the 8 students that play both sports are included in the totals for both football and cricket. Therefore, to find the number of students who play at least one sport, we need to subtract the students counted twice because they play both sports:

Total playing football or cricket or both = (Number playing football) + (Number playing cricket) - (Number playing both)
= 14 + 20 - 8
= 26 students

We also know there are 4 students who do not play football or cricket. To find the total number of students, we add the number of students who play either sport to those who play neither:

Total number of students = 26 (playing sports) + 4 (not playing any sports)
= 30 students

The probability that a student chosen at random plays football or cricket or both is calculated by dividing the number of students who play either sport by the total number of students:

P(playing football or cricket or both) = Number of students playing sports / Total number of students
= 26 / 30
= 0.8667 (rounded to four decimal places)

The probability is approximately 0.8667, or 86.67%.

Answer:

V= pi.r².h/3

=22/7×2.5²×10/3

=65.47

Step-by-step explanation:

Answer:

78.5%

Step-by-step explanation:

Area of a 100ft radius circle = 628sqm

Area of rectangle = 800sqm

= 172sqm difference in size

if 800 sqm = 100%

Then 600 sqm = 3/4 = 75%

60sqm =3/40 = 7.5%

6sq m =3/400 =0.75%

2 sq m = 0.25%

30sqm = 1/2 of 7.5%= 3.75

3.75-0.25 = 3.50%

3.50% + 75 = 78.5%

Answer:

C) △EFG is moved onto △E'F'G' after rotating 270 degrees counterclockwise around the origin, and then reflecting across the x-axis

Step-by-step explanation:

Brainliest answer here.

Above is right also.

Hope this helps :)

The sequence of transformations will verify that △EFG and △E'F'G' are congruent is; C) △EFG is moved onto △E'F'G' after rotating 270 degrees counterclockwise around the origin, and then reflecting across the x-axis

The transformation of a function may involve any change.

Usually, these can be shifted horizontally (by transforming inputs) or vertically (by transforming output), stretching (multiplying outputs or inputs), etc.

For triangle △EFG and △E'F'G'  to be congruent, we must first rotate 180° counterclockwise around the origin and then move EFG onto E'F'G'H'.

This proof of congruency is reflected across the y-axis.

The sequence of transformations will verify that △EFG and △E'F'G' are congruent is;

C) △EFG is moved onto △E'F'G' after rotating 270 degrees counterclockwise around the origin, and then reflecting across the x-axis

Learn more about transforming functions here:

https://brainly.com/question/17006186

#SPJ3