I really need help with this question.. I've been stuck on it for a while

Answer:

1. 2x + 5

2. 9

Step-by-step explanation:

1. x2+5(7-6)

  2x+5(7-6)

  2x+5·1

  = 2x+5

2. 6÷2(1+2)

   6÷2·3

   = 9

The area of the smallest circle with radius 3 is 28.27 unit². The area of the yellow ring and white ring is 28.27 unit² and 56.55 unit².

The area of the circle is the space occupied by it. It can be given as,

[tex]A=\pi r^2[/tex]

Here (r) is the radius of the circle.

In this diagram, three concentric circles' rectangle.

The radius of the smallest circle is 3.

[tex]r_1=3\rm\unit[/tex]

Thus, the area of it is,

[tex]A=\pi (3)^2\\A=28.27\rm\; unit^2[/tex]

Let suppose the mid-point of the rectangle is D. Here, OB is the diagonal of the rectangle in which,

[tex]OD=BD[/tex]  

The radius of the yellow ring's outer face from point O is,

[tex]r_3=OD+BD\\r_3=OD+OD\\r_3=2OD\\[/tex]

OD is the radius of the small circle, which is 3 units long. Thus,

[tex]r_3=2\times3\\r_3=6\rm\; units[/tex]

The line segment OC is the radius of the white circle from point O. In the triangle COB from the Pythagoras theorem, the radius r₂ of the middle circle is,

[tex]r_2=\sqrt{r_3^2-r_1^2}\\r_2=\sqrt{6^2-3^2}\\r_2=3\sqrt3[/tex]

Thus, the area of the yellow ring is,

[tex]A_y=\pi r_3^2-\pi r_2^2\\A_y=\pi (6)^2-\pi (3\sqrt{3})^2\\A_y=28.27\rm\; unit^2[/tex]

The area of white ring is,

[tex]A_w=\pi r_2^2-\pi r_1^2\\A_w=\pi (3\sqrt{3})^2-\pi (3)^2\\A_w=56.55\rm\; unit^2[/tex]

Hence, the area of the smallest circle with radius 3 is 28.27 unit². The area of the yellow ring and white ring is 28.27 unit² and 56.55 unit².

Learn more about the area of the circle here;

https://brainly.com/question/402655

#SPJ1

Answer:

112 degrees

Step-by-step explanation:

180-68=112

Since they are supplementary they form a straight angle, or 180 degrees so the angle AED is 112

Answer:

112

Step-by-step explanation:

∠AED and 68 are Linear pair angles.

That is their sum will be equal to 180,

∠AED + 68 = 180

∠AED = 180 - 68

∠AED = 112

Answer:

Step-by-step explanation:

It represents the initial number of bacteria to start with. It can represent nothing else.

Answer:

See below ~

Step-by-step explanation:

1.

2.

3.

Answer:

1/2 x [(12/2)-6]+13

Step-by-step explanation:

something like that. hope it helped sista

Answer:

so I believe we can do 15% of 45, so that is 6.75.

so now we do:

 45.00

+  6.75

 51.75 is your answer!

please mark brainliest if correct!

Answer:

Step-by-step explanation:

The intersection is when both functions have same coordinates

Substitute to get

The y- coordinate is

So the intersection point is (1, 14)

Answer:

(1, 14)

Step-by-step explanation:

Given functions:

[tex]\begin{cases}f(x)=-2x+16\\g(x)=4x+10\end{cases}[/tex]

Substitute the function notation for y to create a system of equations:

[tex]\begin{cases}y=-2x+16\\y=4x+10\end{cases}[/tex]

To find the points of intersection of the given functions, solve the system of equations.

Multiply the first equation (function f(x)) by 2:

[tex]\implies 2y=-4x+32[/tex]

Add this to the second equation (function g(x)) to eliminate x:

[tex]\begin{array}{r l}4x+10 & = y\\+ \quad -4x+32 & = 2y\\\cline{1-2} 42 & = 3y\end{array}[/tex]

Solve for y:

[tex]\implies 3y=42[/tex]

[tex]\implies y=14[/tex]

Substitute the found value of y into one of the equations and solve for x:

[tex]\implies 4x+10=14[/tex]

[tex]\implies 4x=4[/tex]

[tex]\implies x=1[/tex]

Therefore, the point of intersection of the given functions is (1, 14).

Solution: x = 5; The slope is undefined.

The slope that is perpendicular to the x-axis is undefined.

Explanation:

Given point: (5,2)

Since the line is perpendicular to the x-axis, then, the line is vertical.

Hence, x = 5

Answer:

x = 5, the slope is undefined

Step-by-step explanation:

Hello!

To be perpendicular to the x-axis, the line has to intersect at a 90° angle, causing it to be a vertical line with an undefined slope.

This removes the two middle options, as they have a slope of 0.

Consequently, looking at the two options, y=2, and x=5, y=2 would give us a parallel line to the x-axis, as we are drawing a line through all points with a y-coordinate of 2.

The correct option is x=5.

If  the confidence interval is 95%, the maximum number of employees who could have agreed is about  is 144.

First step

Confidence interval=(Population±Margin of error)

Confidence interval=(0.65±0.0675)

Confidence interval=(0.65-0.0675); (0.65+0.0675)

Confidence interval=0.5825; 0.7175

Second step

Maximum number= 0.7175×200

Maximum number=143.5

Maximum number=144 (Approximately)

Therefore the maximum number of employees who could have agreed is about  is 144.

Learn more about maximum number here:https://brainly.com/question/14927859

Answer:

26.77 mph

Step-by-step explanation:

Formula for Avg. Speed = Distance/Time

80.31/3 = 26.77

Answer:

26.77 miles per hour

Step-by-step explanation:

Distance ÷Time

80.31 miles ÷3hrs

= 26.77 miles per hour

Answer:

The y-intercept for the 1st one is (0, -3)

The y-intercept for the 2nd one is (0,3)

Step-by-step explanation:

I hope this helped you out. =)

Answer:

86

Step-by-step explanation:

because 86 reminds me of 69

Answer:

22km

Step-by-step explanation:

5 x 4 = 20

1 x 4= 4

4 divided by 2 is 2

20+2=22km

Answer:

Sorry I only know nuber 11 witch is 15
                                                          _
                                                         100

Step-by-step explanation:

Answer:

1716

Step-by-step explanation:

The first choice would be 1 of 13
The second choice would be 1 of 12 (it can't be the same as the first number since they don't repeat)
The third choice would be 1 of 11 (again, can't use the same number more than once)

That gives you 13*12*11=1716

The number of ways we can choose three different numbers in order for a unique code for this case is 2730.

In mathematics, a combination is a selection of items from a set that has distinct members, such that the order of selection does not matter.

here, we have,

We can use combinations for this case,

Total number of distinguishable things is m.

Out of those m things, k things are to be chosen such that their order doesn't matter.

This can be done in total of mCk ways.

If the order matters, then each of those choice of k distinct items would be permuted k! times.

So, total number of choices in that case would be:

mPk = m! / (m - k)!

This is called permutation of k items chosen out of m items (all distinct).

Given that:

The considered lock as a 3 number code

There are 15 numbers available.

None of the number can repeat.

In a lock, the order of the way numbers are arranged matters.

Because of no repetition allowed, we can simulate this situation as:

The number of ways we can choose 3 numbers out of 15 numbers with order = The number of different ways we can choose three different numbers in order for a unique code.

And we have:

The number of ways we can choose 3 numbers out of 15 numbers with order = 15P3 = 2730

Thus, the number of ways we can choose three different numbers in order for a unique code for this case is 2730

Learn more about combinations and permutations here:

brainly.com/question/16107928

#SPJ2

Answer: C

Step-by-step explanation:

Answer:

20, 18,14,24 are not perfect squares.

Answer:

24, 14, 18, 20

Step-by-step explanation:

A perfect square is a number that can be expressed as the product of two equal integers. Numbers 24, 14, 18, and 20 are not products of any equal numbers. The rest are.

5 x 5 = 25

6 x 6 = 36

4 x 4 = 16

hope this helps!

Answer:

I support, but this is actually the addition.

492+817 = 1309, yes :)

Step-by-step explanation:

Answer:

504 in cubed

Step-by-step explanation:

I am assuming this is a rectangular prism, since you did not show a picture.

l x w x h

14 x 4 x 9

14 x 36

504

Answer:

The third question is asking you to use the diamond method to solve. At the top of the x would be -16 and the bottom would be -6. The left side would have -8 and the right side would have 2. So the factored form would be (n-8)(n+2)

Step-by-step explanation:

The same thing applies to part b. The top of the x would be 15 and the bottom -8. The left would be -3 and the right would be -5. The factored from would be (x-3)(x-5)

Answer:

Wow! what a worksheet lol! I think I got all your answers here!

Step-by-step explanation:

Answer:

The equation of the line in point-slope form is y - 2 = -4(x + 5).

Step-by-step explanation:

Use the point-slope equation: [tex]y-y_1=m(x-x_1)[/tex].

Substitute the point (-5, 2) and the slope m = -4 into the equation.

If we stop here, this is the equation of the line in point-slope form.

Answer:

Step-by-step explanation:

The compound Inequality is: 1. x -3 < - 9Adding 3 to both sidesx -3 + 3 < -9 + 3x < -6x  ∈ (-∞,-6)2. x + 5 ≥ 12Subtracting ,5 from both sidesx +5 -5 ≥ 12 -5x ≥ 7x ∈ [7 , ∞)Combining , solution of inequality 1 and inequality ,2→→x ∈ (-∞,-6) ∪x ∈ [7 , ∞)Depicting on the number line ,the solution setOption C: A number line with an open circle on −6, shading to the left, and a closed circle on 7, shading to the right

The function f(x) is a sine graph, and the function with the greatest maximum range value is the function f(x)

From the complete question (see attachment), the functions are given as:

Functions f(x) and g(x)

The maximum range value of these functions is their maximum output value

Function f(x) has a maximum range value of 3, while function g(x) has a maximum range value of -2

3 is greater than -2

Hence, the function with the greatest maximum range value is the function f(x)

Read more about maximum function values at:

https://brainly.com/question/5722003

#SPJ1

Answer:

94 minutes

Step-by-step explanation:

To get to 9:00, we add 6 minutes. From 9 to 10, there's 60 minutes. From 10 to 10:28, there's 28 minutes.

If we add them all together we get 94 minutes or 1 hour and 34 minutes.

Hope this helps.

Answer:

1:34 hours

Step-by-step explanation:

Step 1:  Determine how long was Chris doing chores

10:28 AM - 8:54 AM

9:88 AM - 8:54 AM

1:34 hours

Answer:  1:34 hours

Answer:

A statistical question Len could ask is "How tall is a red kangaroo?"

Step-by-step explanation:

A statistical question is something that we can ask and test hypotheses about using collected data. There will not be a specific answer, but rather multiple answers and we can average them in a sampling distribution.

Let's examine each question:

"How tall is a red kangaroo?"

"Are there red kangaroos in Asia?"

"Are red kangaroos an endangered species?"

What is the tallest red kangaroo ever recorded?"