I will give the brainiest

a stack of poles has 28 in the bottom row, 27 poles in the next row, and so on, with 5 poles in the top row. how many poles are there in a stack?

Answer:

The range is 13.1

Step-by-step explanation:

You need to subtract 28.9 and 15.8

Answer:

13.1

Step-by-step explanation:

You take the maximum value in the data set (28.9) and take the minimum value (15.8) and subtract 28.9 by 15.8 and you get 13.1

Answer:

15 feet

Step-by-step explanation:

Subtract 10 feet from the height of the ladder

Answer:

x=6/cos 45=6√2

x=6√2

tan 45=y/6

y=tan45 ×6

y=6

2.

sin 60=y/10

y=sin60×10

y=5√3

again

Cos 60=x/10

x=½×10

x=5

3.

Sin 45=x/5

x=1/√2×5 or

x=5√2/2

again

y=5√2/2 or 5/√2[base angle of right angled isosceles triangle]

4.

Sin 30=8/x

½×x=8

x=8*2

x=16

again

cos 30= y/x

√3/2×16=y

y=8√3

5.

sin 60=7/x

x=7/[√3/2]

x=14/√3 or 14√3/3

again

cos 60=y/x

½×14√3/3=y

7√3/2=y

y=7√3/2

Note:

Sin angle =perpendicular/hypotenuse

Cos angle =base/hypotenuse

Tan angle =perpendicular /base

Answer:

[tex]10^3[/tex] times

Step-by-step explanation:

Given

Let

[tex]P \to[/tex] Park Crest Middle School

[tex]T \to[/tex] Total

So, we have:

[tex]P = 400[/tex]

[tex]T = 406240[/tex]

Required

Determine the number of times T is greater than P

This is calculated by dividing T by P.

i.e.

[tex]n = \frac{T}{P}[/tex]

So, we have:

[tex]n = \frac{406240}{400}[/tex]

[tex]n = 1015.6[/tex]

Approximate

[tex]n \approx 1000[/tex]

As a power of 10, we have:

[tex]n = 10^3[/tex]

Answer:

5

Step-by-step explanation:

Answer:

D. 1250

Step-by-step explanation:

V=0.5×b×a×h

=0.5×10×25×10

=1250 cm^3

Answer:

y = 800,000[1.03]

Step-by-step explanation:

Given:

Number of people attend 2012 country fair = 800,000

Attendance increases = 3% per year

Find:

Function represents attendance  after 2012

Computation:

A = P[1+r]ⁿ

Assume;

Number of people attend country fair after 2012 = y

So,

y = 800,000[1+3%]¹

y = 800,000[1+0.03]

y = 800,000[1.03]

Function represents attendance  after 2012 is y = 800,000[1.03]

Answer:

Hope this helps! have a good day. :)

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

3(x−2)=2(x−3)

(3)(x)+(3)(−2)=(2)(x)+(2)(−3)(Distribute)

3x+−6=2x+−6

3x−6=2x−6

Step 2: Subtract 2x from both sides.

3x−6−2x=2x−6−2x

x−6=−6

Step 3: Add 6 to both sides.

x−6+6=−6+6

x=0

Answer:

parallelogram

Step-by-step explanation:

cannot be a rhombus or square because all sides are not equal

cannot be a rectangle because the slopes indicate no right angles

Answer:

Paul

Step-by-step explanation:

Paul earn more than monica. Though he is getting less interest but because of his higher initial amount he is getting more return.

Computing the return of both

Monica return is  100*3.4%= $3.4 in a year

9514 1404 393

Answer:

  Monica is not correct

Step-by-step explanation:

Monica's interest is ...

  I = Prt

  I = $100(0.041)(1) = $4.10

__

Paul's interest is ...

  I = $200(0.029)(1) = $5.80

__

Paul's account earns more interest because of his greater initial deposit. Monica's statement is incorrect.

Where is the picture? Nothing is attached to your question.

Answer:

-4

Step-by-step explanation:

hope this helps with the work

Answer:

90°

Step-by-step explanation:

a square in the corner of an angle always indicates 90° because each corner of a square is also 90°

Answer:

the first vehicle is the answer because it is very very obvious

Answer:

The answer for x is 80°

Step-by-step explanation:

60°+40°+x=180°

X=180°-60°-40°

X=80°

Answer:

[tex]1397\frac{1}{3}[/tex]

Step-by-step explanation:

Answer:

1,397.33333

Step-by-step explanation:

4,192/3 is 1,397.33333 because 3 goes into 4,192, 1,397 times fully and a third more (1/3) to fit.

Answer: 44%, 56%

Step-by-step explanation:

Given

A company has 33 males and 42 female staff

So, the total staff is the sum of male and female

[tex]\Rightarrow \text{Total=}33+42\\\Rightarrow \text{Total=}75[/tex]

The percentage of male staff is

[tex]\Rightarrow \text{Male }\%=\dfrac{33}{75}\times 100\\\\\Rightarrow \text{Male }\%=44\%[/tex]

The percentage of female staff is

[tex]\Rightarrow \text{female }\%=\dfrac{42}{75}\times 100\\\\\Rightarrow \text{female }\%=56\%[/tex]

Answer:

See explanation below

Step-by-step explanation:

a. f(x) is increasing at (-∞, 1] and [7, ∞) because f'(x) is positive at those intervals.

b. f(x) is concave up at [4, ∞) because the slope of f'(x) or f''(x) is positive.

Answer:

About 6.32 hours.

Step-by-step explanation:

P= production

t=# of hours needed

How many hours are needed to reach the production level of 400?

Plug the numbers into the formula given.

400=300+50 ( t-10 squared)

Combine like terms-  400=350 (t-10 squared)

subtract 350 from itself, then do the same to the other side.

400-350=350-350(t=-10 squared)

50= (t-10squared)

50-10= 40 squared

40 squared= about 6.32.

Hope this helps! Have a nice day :)

Answer:

Formula = A.) S = PH + 2B

P = 10

B = 8

h = 6

Total surface area = 76cm^2

I hope this is right

Step-by-step explanation:

Answer:

#4) 1

Step-by-step explanation:

To find the average, add all of the temperatures together, then divide it by the number of temperatures added.

It'll look like this: (-10+2+8+4)/4

Answer:

JM = 30

Step-by-step explanation:

Similar trapezoids

JM/45 = 20/30

JM = 20/30 * 45

JM = 30

Answer:

1st option

Step-by-step explanation:

The area (A) of a circle is calculated as

A = πr² ( r is the radius )

A = 3.14 × 3² = 3.14 × 9 = 28.26 cm²

Answer:

[tex]area \ of circle = \pi r^{2} = 9\pi \ cm^{2} = 28.27cm^{2}[/tex]