Which statements are true about a decagonal (10-sided) pyramid? Check all that apply.
It has one face that is a decagon.
It has two faces that are decagons.
It has 11 faces.
It has 20 edges.
It has 20 vertices.

Answer:

D.2.58

Step-by-step explanation:

We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:

[tex]\alpha = \frac{1 - 0.99}{2} = 0.005[/tex]

Now, we have to find z in the Ztable as such z has a pvalue of [tex]1 - \alpha[/tex].

That is z with a pvalue of [tex]1 - 0.005 = 0.995[/tex], so Z = 2.58.

The answer is given by option D.

Answer:

48 ft

Step-by-step explanation:

this is because the perimeter of the room is its sides so first you 9x2=18

then 14x 2= 28 and then 28 + 18 and you get 48 ft

Answer:

points

Step-by-step explanation:

Answer:

The spinner will land 1 three times out of every Eight

Step-by-step explanation:

Answer:

62 times

Step-by-step explanation:

if the probability is 62/100 then u get an odd num 62 times out of every 100

Answer:

p=5

Step-by-step explanation:

if 5+3 = 8

13-8=5

and both sides of the triangle need to be the same

Answer:

its 5

Step-by-step explanation:

5 + 3 + p = 13

p=5

Answer:

[tex](x_1,y_1) = (0,9)[/tex]

[tex](x_2,y_2) = (6,3)[/tex]

[tex](x_3,y_3) = (6,12)[/tex]

Step-by-step explanation:

Given

x = hours spent on cardiovascular work

y = hours spent on weight training

From the first statement,

Each week: he spends at least 9 hours

This is represented as:

[tex]Total \ge 9[/tex]

[tex]x + y \ge 9[/tex]

From the second statement,

Each week: he spends a max of 12 hours on weights

This is represented as:

[tex]Weight \le 12[/tex]

[tex]y \le 12[/tex]

From the third statement,

Each week: he spends a max of 6 hours on cardio works

This is represented as:

[tex]Cardio \le 6[/tex]

[tex]x \le 6[/tex]

So, the inequalities are:

[tex]x + y \ge 9[/tex]

[tex]y \le 12[/tex]

[tex]x \le 6[/tex]

See attachment for the graph where the solution are also highlighted

From the attachment, the solutions are:

[tex](x_1,y_1) = (0,9)[/tex]

[tex](x_2,y_2) = (6,3)[/tex]

[tex](x_3,y_3) = (6,12)[/tex]

Answer:

[tex]\frac{6\\}{25}[/tex]

Answer:

9,160,000 tons

Answer:

A

Step-by-step explanation:

Part A, A. Kari, because the mean and median of her scores is, 84.5.

Part B, Jocely will see a greater increase overall as her previous average is less.

The three main methods for identifying the average value of a set of integers are mean, median, and mode.

Adding the numbers together and dividing the result by the total number of numbers in the list yields the arithmetic mean.

The middle value in a list that is arranged from smallest to greatest is called the median.

The value that appears the most frequently on the list is the mode.

From the given information, The average score of Jocelyn is,

= (86 + 87 + 95 + 72 + 78 + 80)/6.

= 83.

And Similarly, The average score Kari is,

= (88 + 78 + 93 + 81 + 75 + 91)/6.

= 84.5.

Therefore, Kari scores better overall.

If they both get 90% on their next math quiz Jocely will see a greater increase overall as her previous average is less.

learn more about mean here :

https://brainly.com/question/30112112

#SPJ3

Answer:

you can use :

cos(X) = ( 5^2 + 6.9^2-5^2) / (2*5*6.9)

use caculator shift cos of this

Answer:

There would be a difference of 300 kg.

Step-by-step explanation:

If you do 1,325 minus 1,025, you would get the answer of 300 kg.

Answer:

0.340007556

Step-by-step explanation:

its correct

Answer:

Step-by-step explanation:

the scale factor is 0.8:20

since the line is 239 miles long, divide by 20

239/20 = 11.95

multiply by 0.8

11.95 x 0.8 = 9.56

Answer:

192ft squared. But remember it says don't put the square feet so just type in: 192.

Step-by-step explanation:

The top triangle is 42 ft squared.

The rectangle below it is 150 feet squared.

You add them together and get 192 ft squared hope this helps!

Answer:

D. 2•2•3•7

Step-by-step explanation:

Answer:

x >_ 1

Step-by-step explanation:

Solving an inequality is a lot like solving an equation. Just pretend the inequality symbol is an equal sign!

(also i wont be using the _ or equal to symbol because I'm too lazy, so you'll get >_ or <_ for those, sorry)

8 + 4x >_ 12

-8             -8

4x >_ 4

/4       /4

x >_ 1

Answer:

2/5 remaining

Step-by-step explanation:

If a job is 35 and 3/5 was completed, 3/5 of 35 = 21

That is 35 - 21 = 14

The fraction of the job remaining to be done will then be 14/35 = 2/5

Step-by-step explanation:

if 4x = 60

Then

x = 60 / 4

x = 15

Hope it will help :)❤

Answer:

C

Step-by-step explanation:

I was taking the test and finished an hour ago

Answer:

0.0003125%

Step-by-step explanation:

Answer:

  C

Step-by-step explanation:

I just did the test

Answer:

its c

Step-by-step explanation:

Answer:  15 units .

__________________________________________________

In this case, a square, the two sides of the square (forming a right triangle) are equal), and the "diagonal" forming is the hypotenuse of the right triangle.

In these cases, the measurements of the angles of the right triangle are "45, 45, 90" ; and the measurements of the sides are:  "a, a, a√2" ; in which "a√2" is the hypotenuse.

We are given:  "15√2" is the hypotenuse" ; and we are given that this is a right triangle of a square with a diagonal length (i.e. "hypotenuse" of "15√2" ; so the measure of the side of the "square" (and other two sides of the triangle formed) is:  15 units.   (i.e.,  15, 15, 15√2 ).

Answer:

The 40 ounce jar is cheaper

Step-by-step explanation:

how i did this was divide 6.00 by 30 to get 0.2 cents per ounce then 7.20 divided by 40 to get 0.18 cents per ounce so the 40 ounce jar would be cheaper, hope this helps.

Answer:

y=3.75

x=9.6

Step-by-step explanation:

Answer:

0.006

Step-by-step explanation:

Answer:

Explanation:

611 or 6÷11=0.545454545....

The hundredth position is two positions to the right of the decimal point. For this problem it is the 4:

0.545454545....

To round to the nearest hundredth you must look at the digit in the position immediately to the right of the digit in the hundredth place, which is the 5 in the thousandth place:

0.545454545....

If the digit to the right is greater than or equal to 5 you add 1 to the digit you are rounding to and make everything to the right 0.

If the digit to the right is less than 5 you add keep the digit you are rounding to the same and make everything to the right 0.

In this problem the digit to the right is a 5 so we add 1 to the digit we are rounding to and make everything to the right 0.

0.545454545....=0.550000000....=0.55

Answer:

ur correct it's A. trust me u look up all the definitions to the other than A. they gonna be wrong already looked em all up