please help!!!!!!!!!!!!!!!!!!!

Answer:

The histogram shows there were 22 students in the class.

The histogram is symmetrical.

The histogram has a peak.

The histogram shows the data is evenly distributed.

Step-by-step explanation:

Answer:

C. √2 - 1

Step-by-step explanation:

If we draw a square from the center of the large circle to the center of one of the small circles, we can see that the sides of the square are equal to the radius of the small circle (see attached diagram)

Let r = the radius of the small circle

Using Pythagoras' Theorem [tex]a^2+b^2=c^2[/tex]

(where a and b are the legs, and c is the hypotenuse, of a right triangle)

to find the diagonal of the square:

[tex]\implies r^2 + r^2 = c^2[/tex]

[tex]\implies 2r^2 = c^2[/tex]

[tex]\implies c=\sqrt{2r^2}[/tex]

So the diagonal of the square = [tex]\sqrt{2r^2}[/tex]

We are told that the radius of the large circle is 1:

⇒ Diagonal of square + r = 1

[tex]\implies \sqrt{2r^2}+r=1[/tex]

[tex]\implies \sqrt{2r^2}=1-r[/tex]

[tex]\implies 2r^2=(1-r)^2[/tex]

[tex]\implies 2r^2=1-2r+r^2[/tex]

[tex]\implies r^2+2r-1=0[/tex]

Using the quadratic formula to calculate r:

[tex]\implies r=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}[/tex]

[tex]\implies r=\dfrac{-2\pm\sqrt{2^2-4(1)(-1)}}{2(1)}[/tex]

[tex]\implies r=\dfrac{-2\pm\sqrt{8}}{2}[/tex]

[tex]\implies r=-1\pm\sqrt{2}[/tex]

As distance is positive, [tex]r=-1+\sqrt{2}=\sqrt{2}-1[/tex]  only

Answer:

  see attached

Step-by-step explanation:

The first application of the Pythagorean theorem is used to find the diagonal of one face. That is called 'a' in this problem. Then the second application of the Pythagorean theorem uses that value of 'a' along with the remaining prism dimension to find the space diagonal 'c'.

__

You don't actually have to find 'a', because you only need the value of a². Using the first equation to substitute into the second equation gives ...

  6² +8² +12² = c²

Step-by-step explanation:

First we will take the time needed to make one chair by unitary method

then just multiply by how many chairs you want to calculate

Answer: It takes the machine 25 min to make 5 chairs and takes 160 min to make 32 chairs

Step-by-step explanation:  ok so for 5 chairs it will take 25min 2 chairs = 10 plus 2 = 20 + 1 chair = 25 min I am sorry if I make no sense i suck at explaining things. for 32 chairs you can do 32 TIMES 5 and that would be 160 HOPE THIS HELPS SORRY IF I DID NOT MAKE SENSE.

Step-by-step explanation:

1: statistical

Answer:

1.they are both statistic questions at least I think they are;)

2.what id collect is the temperatures and make tables and stuff to figure out the answer to these questions

Step-by-step explanation:

Answer:

220.5 sq feet

Step-by-step explanation:

Given : Bev has to cut her grandma's grass this weekend

Six-sided polygon that includes two isosceles right triangles, one with height and base of 15 feet, the other height and base of 4 feet, and one rectangle measuring 25 feet by 4 feet.

To Find : Area of Polygon

Solution:

Area of triangle = (1/2) bh

= (1/2) * 15 * 15

= 112.5   sq feet

= (1/2) * 4 * 4

=  8   sq feet

Area of rectangle = 25 x 4 = 100   sq feet

Total area =112.5 +  8  + 100

= 220.5 sq feet

Area of Polygon = 220.5 sq feet

Answer:

398 ft²

Step-by-step explanation:

Assuming you have correctly described the total area in terms of non-overlapping triangles and a rectangle, you can put the dimensions into the appropriate area formula and add up the pieces.

Triangle area = 1/2·bh

Rectangle area = bh

___

So, the first triangle has an area of ...

1/2·(20 ft)(20 ft) = 200 ft²

The second triangle has an area of ...

1/2·(6 ft)(6 ft) = 18 ft²

The rectangle has an area of ...

(30 ft)(6 ft) = 180 ft²

And the area total is ...

200 ft² +18 ft² +180 ft² = 398 ft²

Answer:

(Litres used X 100) ÷ km travelled = Litres per 100km.

Step-by-step explanation:

Answer:

8; 3 : 8

Step-by-step explanation:

to find out how many shapes there are for every 3 circles you must first reduce the ratio down to 3 : blank

divide both sides by 4

3 : 8

that means there are 8 shapes for every 3 circles

the simplified ratio is 3 : 8

Answer:

L = 10 in
P = 40 in

Step-by-step explanation:

The area of a square is given by the equation:

A = L²

We rearrange this equation to make L the subject:

Square root both sides:

√A = L

Now we substitute A into our rearranged equation to find L:

L = √A

L = √100

L = 10 in

The perimeter of a square is given by the equation:

P = 4L

Substitute the L we just found to find P:

P = 4(10)

P = 40 in

Answer:

First on 3/4

Step-by-step explanation:

second one 0.0

Answer:

2m+10

Step-by-step explanation:

2(5+m)

=(2)(5+m)

=(2)(5)+(2)(m)

=10+2m

=2m+10

Answer:

C, ∠s = 128°

Step-by-step explanation:

These two angle measures are corresponding(can be found in matching corners of a transversal cutting into two parallel lines), which means they are congruent(and congruent angles measure the same degree).

Answer:

5

Step-by-step explanation:

5

Answer:

-2/3

Step-by-step explanation:

in division problems where we have fractions we keep the first number change the sign to multiplication and flip the fraction i believe

Answer:

sorry but what do i answer

Answer:

d

Step-by-step explanation:

Answer:

hmm i think it should look something like this

Step-by-step explanation:

i'm not sure if i am correct

Answer:

[tex]beinggreat78 ~is ~here ~to~ help~ you![/tex]

Let's start with 5 squared. 5 squared, or just squared in general, represents the number behind it times itself.

[tex]5^2~or~ 5*5 = 25[/tex]

Now, add 3

[tex]25 + 3 = 28[/tex]

Next, subtract 1

[tex]28 - 1 = 27[/tex]

Now, you must divide, because the line under the first equation represents division, or a fraction. For this case, division. Before dividing your result, 27, by y, the second equation, you first want to solve equation 2, y.

[tex]\frac{18}{2} = 9[/tex]

Lastly, divide x by y, 27 divided by 9

[tex]\frac{27}{9} = 3[/tex]

The problem is solved! The final answer is 3

Answer: the answer is 27.92

Step-by-step explanation: if you right it vertical and line the desimals you will get the answer

Answer:

x = 44.3

Step-by-step explanation:

Knowing that the given figure shows a supplementary angle

⇒ Note that: Supplementary angle= 180 °

Since it already given the other two number

The equation is:

43 + 92.7 + x = 180

Adding both number together : 43 + 92.7

135.7 + x = 180

Subtract 135.7 from both sides

135.7 -135.7 +x = 180-135.7  

x = 44.3

Hence, the value in degrees of x = 44.3 °

~lenvy~

Answer:

9,700,000.

Explain:

9 goes in the 1,000,000th place, and 700 would be placed right behind the 9's comma. Therefore, 9,700,000

Answer: 9,700,000

In order to answer this you should start by writing out one million. By doing this, you can find out where you ones, hundreds, thousands, and millions place is. Then input what you know. The nine would go in the millions place, then the 7 would go in the thousands place.

I hope this helps! : )

Answer:

So our answer in pi form is 30.25π

Step-by-step explanation:

The circumference of a circle is given by the formulas :

[tex]2\pi r[/tex] or [tex]\pi d[/tex]  where r is radius and d is the diameter

Since

11π = 2πr

We can solve for r to use it in the area of a circle formula:

[tex]\frac{11\pi }{2\pi } = r[/tex]

r = 5.5

The area of a circle is given by the formula:

[tex]\pi r^{2}[/tex] where r is the radius/.

Since we found r we can find the area:

π(5.5)² = 30.25π

So our answer in pi form is 30.25π

Answer:

As you have not specified the format in which to give the answer, I am giving three ways of writing it:

[tex]\sf 30.25 \pi \ units^2[/tex]

[tex]\sf \dfrac{121}{4} \pi \ units^2[/tex]

95.03 units² (nearest hundredth)

Step-by-step explanation:

Formulae

(where r is the radius)

Given:

Therefore, use the given value and the circumference equation to find the radius:

⇒ circumference = 11π

⇒ 2πr = 11π

⇒ 2r = 11

⇒ r = 5.5

Now we have found the radius, simply substitute this into the equation for area of circle:

⇒ area of a circle = πr²

                             = π5.5²

                             = 30.25π units²

Explanation:

A diameter is a special type of chord that passes through the center of the circle.

A chord is any segment where both endpoints are on the edge of a circle.

Any diameter is a chord, but not the other way around. See the example below.

Answer:

You must be in 8th grade?

Step-by-step explanation:

For the first one I don't know.

The second one I'm also not sure about.

The third one, the answer is 225 because you will divided 150 by 2 and get the answer of 75 and then multiply 75 by 3 to get the answer of 225.

For the fourth one, you will multiply 5 x 2.5 = 12.5 then you will multiply 12.5 x 20 = 250yd^2.

For the last one you will multiply 2.25 x 22 = 49.5 miles.

Answer:

Step-by-step explanation:

26?

Answer:

12.12m

Step-by-step explanation:

because math

Answer:

2,044.99 + Whaterver the tax percentage is. For example, if it's 8%, then you can do 2,044.99 x 1.08 to get your answer.

Step-by-step explanation:

Answer:

weight in an elevator must be less than 2000 lbs goes with w < 2000

a ton is 2000 lbs goes with w = 2000

the pool must hold at least 2000 gallons goes with w ≥ 2000

the scale can hold up to and including 2000 lbs goes with w ≤ 2000

my car weighs more than 2000 lbs goes with w > 2000

Step-by-step explanation:

If the weight is less than 2000 lbs, then the inequality will have a lesser than sign. The choice that matches is w < 2000.

If a ton is exactly 2000 lbs, then it's equal to 2000. In other words, the inequality will have an equal sign. The choice that matches is w = 2000.

If a pool should be held with at least 2000 lbs, then it's weight is either greater than or equal to 2000 lbs. the choice that matches is w ≥ 2000.

If a scaled can hold up to, including 2000lbs, then the maximum weight it can hold is 2000 lbs. The weight is less than or equal to 2000. the choice that matches is w ≤ 2000.

If a car weighs more than 2000 pounds, then the weight will be greater than 2000. The choice that matches is w > 2000.

hope this helps!

Answer:

B. Subtraction

Step-by-step explanation:

Inverse operation mean that you do the equation but you flip the equation so you flip the symbol too. The inverse operation for this equation would be 132 - N = 87

Answer:

Step-by-step explanation:

Equation:

Flip the equation:

Answer is B.

(optional answer: N = 45).