which statement is true?

Answer:

A - Stratified random sampling reduces sampling variability.

Step-by-step explanation:

saw it on the review

Answer:

14

Step-by-step explanation:

-5x+26=-44

-26        -26

-5x=-70

5       5

x=14

Answer:

x=14

Step-by-step explanation:

Let's solve your equation step-by-step.

−5x+26=−44

Step 1: Subtract 26 from both sides.

−5x+26−26=−44−26

−5x=−70

Step 2: Divide both sides by -5.

−5x−5=−70−5x=14

Answer:

x=14

The ending balance is $5,480.

Given that,

Based on the above information, the calculation is as follows:

[tex]= \$4,000 \times (1 + 0.065)^5[/tex]

= $5,480

Therefore, the ending balance is $5,480.

Learn more: brainly.com/question/16115373

Answer: Hi, the ending balance is 5,300

Step-by-step explanation:

I took the test and got an 100. Hope this helps!

Answer:

D, no the input 3 has 2 outputs

Step-by-step explanation:

Something can be described as a function if there is only 1 of each number in the input or x.

Answer:

arc AC = 21 degrees

Step-by-step explanation:

2(3x-1.5) = 3x+9

6x-3 = 3x+9

3x = 12

x = 4

arc AC = 3(4) + 9 = 21

Answer:

One number is 4.2, the other is 18.8

Step-by-step explanation:

1.)  x+y=23

    (x+6y)x2=4

2.) (x+6y)x2=4   =   2x+12y=4

3.)Use elimination/substitution to solve

     2x+12y=4  =   x+6y=2  =  x=2-6y

     2-6y+y=23

4.)Solve for y

     2-5y=23 -> -5y=21 -> y=4.2.

5.)Solve for x

    x+4.2=23

    x=18.8

I may be wrong so let me know if I am

Answer:

To find how far the plane will travel, we need the time and length it traveled previously to form the MPH (miles per hour)

Using this information we can make an equation

560/1 = 560 miles in 1 Hour

x/3 = X miles in 3 Hours

560/1 = X/3

X= 1680

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

=1/7 X 100

=14.3

I hope this helps a bit

Answer:

–69.19x + 38.2

Step-by-step explanation:

-9.2(8x - 4) + 0.7(2 + 6.3x)....distribute thru the parenthesis

-73.6x + 36.8 + 1.4 + 4.41x ...combine like terms

(-73.6x + 4.41x) + (36.8 + 1.4) =

-69.19 + 38.2 <====

hope it helps!!

tell me if I got it wrong

Answer:

–69.19x + 38.2

Step-by-step explanation:

Answer:

brainliest   also gimmie a sec to figure it out

Step-by-step explanation:

Answer:

Put 2 dots in the spot above 9 by clicking on the space above the numbers. Put 3 above 10. Put 2 above 11. Put 2 above 12.

Answer:

Its 210

Step-by-step explanation:

Step-by-step explanation:

r-16=10

r=10+16

r=26

I hope this helps.

Answer:

r = 26

Step-by-step explanation:

Answer:

D. The image will reflect up or down, and the y-value will become it's opposite

Answer:

[tex]9u" + 2304u = 160cos(6t)[/tex]

[tex]u(0) = \frac{5}{12}ft[/tex] and [tex]u'(0) =0[/tex]

Step-by-step explanation:

Given

[tex]w =9lb[/tex] --- weight

[tex]L = 1.5in[/tex] --- stretch

[tex]u(0) =5in[/tex] --- initial position

[tex]u'(0) =0[/tex] --- initial velocity

[tex]\gamma =0\ lbs/ft[/tex] --- no damping

[tex]F(t) = 5cos(6t)\ lb[/tex] -- External force

Required

Solve the initial value problem

The initial value problem is calculated using:

[tex]mu" + ku = F(t)[/tex]

First, convert all lengths to ft

[tex]L = 1.5in[/tex]

[tex]L = \frac{1.5}{12}ft[/tex]

[tex]L = \frac{1}{8}ft[/tex]

[tex]u(0) =5in[/tex]

[tex]u(0) = \frac{5}{12}ft[/tex]

Weight is calculated as:

[tex]w = mg[/tex] and [tex]w = kL[/tex]

Where

[tex]g = 32fts^{-1}[/tex]

Make m the subject in [tex]w = mg[/tex]

[tex]m = \frac{w}{g}[/tex]

[tex]m = \frac{9}{32}[/tex]

Make k the subject in [tex]w = kL[/tex]

[tex]k = \frac{w}{L}[/tex]

[tex]k = \frac{9}{1/8}[/tex]

[tex]k = 72[/tex]

Recall that: [tex]mu" + ku = F(t)[/tex]

[tex]\frac{9}{32}u" + 72u = 5cos(6t)[/tex]

Multiply through by 32

[tex]9u" + 2304u = 160cos(6t)[/tex]

[tex]u(0) = \frac{5}{12}ft[/tex] and [tex]u'(0) =0[/tex]

Answer:

-89

Step-by-step explanation:

Answer:

Answer:

The amount of pages that remain to be read is 150 pages

Step-by-step explanation:

Okay if we know it's in 7:3 ratio we can easily add them both to get 10, then divide 10 by 500 to get 50. SO we now know that 50 is 1 unit and since the ratio says 3 units is the answer, we multiply 50 by 3 to get 150.

Answer:

y=-x+5

Step-by-step explanation:

Answer:

The answer is 5x - 6

Pls mark as brainliest

maybe 5x -6

3 x + 2 (x - 1) -4

= 3x + 2x - 2 - 4

= 5x - 6

Answer:

Step-by-step explanation:

[tex]8x^4+2x^3-x+3-5x^3+7x+2\\ \\ 8x^4-3x^3+6x+5[/tex]

Answer:

x = 8, x = 0   intercepts: (8,2) (0,-2)

Step-by-step explanation:

|x − 2| is a positive value, x can be x ≥ 2 or x ≤ 2

when x≥2, then

y = x-2-4 =x-6  and y = 1/2x - 2

x-6 = 1/2x-2

1/2x=4

x = 8

When x≤2

y = -(x-2)-4 = -x - 2

y = 1/2x - 2

-x - 2 = 1/2x - 2

x = 0

Answer:

its 105

Step-by-step explanation:

Answer:

abigail

Step-by-step explanation:

The probability of rolling a 6 is 1/6, so you multiply by 100 to get how many times they should get a 6 and get 16.667, which abigail is the closest to

Answer: it's A

Step-by-step explanation:

y= 1/6x^2

i sacrificed my grade for u lol :/

Answer:

10:4 15:6 20:8

Step-by-step explanation:

Answer:

Step-by-step explanation:

15. (x + 6)(x + 1)

16. (m - 19)(m + 2)

17. (y - 8)(y - 2)

18. (p + 12)(p - 3)

19. (c - 15)(c + 3)

20. (w - 8)^2

21. (a + 15)(a - 2)

22. (x - 30)(x + 3)

23. 3(5r - 4)(5r + 4)

24. 5(3x - 1)(3x + 1)

25. mn(m - n)(m + n)

26. 6a(a - 2b)(a + 2b)

27. 3(x + 8)(x - 3)

28. 2(m - 1)^2

29. x(x + 13)(x - 4)

30. 4y(y + 6)(y - 5)

Answer:

When she uses 300g of flour

She will uses: 4.5 g salt

9 g yeast

36 ml oil

270 ml water

And she will make 9 bread rolls

Answer:

δL/δt = 634,38 ft/s

Step-by-step explanation:

A right triangle is shaped by  ( y = distance between aircraft and ground which is constant and equal to  405 f ) a person who is at ground level 3040 f away from the tower distance x = 3040 f   and the line between the aircraft and the person. Then we can use Pythagoras theorem and write

L ( distance between aircraft and person )

L²  =  x²  +  y²      or    L²  =  x²  + (405)²

Taken partial derivatives with respect to t we get:

2*L*δL/δt    =  2*x*δx/t + 0

Then      L*δL/δt = x*δx/dt

At the moment of the aircraft passing over the tower

x = 3040 ft       δx/δt = 640 ft/s   and L = √ ( 3040)² + (405)²

So   L  = √9241600  + 164025        L = √9405625   L ≈3066,9 ft

Then:

δL/δt = 3040*640/ 3066,9         units   [ ft * ft/s / ft ]   ft/s

δL/δt = 634,38 ft/s