Select the correct answer. Which of these is a key feature of an experimental study? A. The treatment in the experiment should be simple enough for each individual in the experimental group to understand. B. The treatment in the experiment must vary for each individual in the experimental group. C. The treatment in the experiment must be applied to each of the individuals in the experimental group. D. The treatment in the experiment should be short so that each individual is tested quickly.

Answer:

The Clown grabbed 126 balloons

Step-by-step explanation:

Answer:

YZ = 44

Step-by-step explanation:

(2x - 6) × 21 = (x + 1) × 30 => intersecting chords theorem

42x - 126 = 30x + 30

Collect like terms

42x - 30x = 126 + 30

12x = 156

12x/12 = 156/12

x = 13

✔️Find YZ:

YZ = 30 + x + 1

Plug in the value of x

YZ = 30 + 13 + 1

YZ = 44

Answer:

i think its 1.2 dollors im not 100 percent sure

Step-by-step explanation:

Answer:

56

Step-by-step explanation:

please mark this answer as brainliest

Answer:

d. -38 on edge21

Step-by-step explanation:

Answer:

16. (80)(60) = 4800

17. (500)(600) = 300000

18. (700)(800) = 560000  a). high

Step-by-step explanation:

Answer:

1,000,000

Step-by-step explanation:

1mm=1e-6km

10mm=1e-5km

100mm=1e-4km

1000mm=000.1km

10000mm=0.01km

100000mm=0.1km

500000mm=0.5km

1000000mm=1km

Answer:

D

Step-by-step explanation:

multiply tge length × width x height fir each and the least to greatest is D

Answer:

C = 88

Step-by-step explanation:

So, we know that the circle passes thru the point (20,2), and it's center is (6,2).

The general definition of a circle's radius is the distance from the center to any point on the circle!

Vertically, these points are the same - so if we just subtract 20 from 6 we know the distance between the center and this point on the circle!

[tex]20 - 6 = 14\\r=14[/tex]

Anyhow, we now know that the radius is 14. and the equation for a circle's circumference is as follows:

[tex]r2\pi \\or\\d\pi[/tex]

Insert the values into the equation....

[tex]C = 3.14(14)(2)\\C=87.92[/tex]

87.92 ≈ 88.00

Have a nice day, fam. Spread The Love <3

Answer:

Step-by-step explanation:

Counterclockwise rotation about the origin by 180 degrees followed by reflection over the y-axis

Answer:

Hey, gm!

Step-by-step explanation:

With what? Let me know :)

Have a nice day <3

Answer:

No triangle possible

Step-by-step explanation:

Answer:

The answer on ed 2021

Step-by-step explanation:

B: The population is all men in the US ages 18–30.

and

E: A sample is a selected group of men from the top 50 occupations in the US ages 18–30 from which their heights were measured.

Answer:

A. 4in

Step-by-step explanation:

Since the triangles are similar, their sides are in ratio. Therefore, we can say that:

KL/JK=BC/AB

x/1.5=16/6

x=(1.5)(16/6)

x=4

Answer:

LJ and GE

Step-by-step explanation:

Answer:

Angles IJG and KJL are vertical angles

Step-by-step explanation:

Vertical angles are formed when two lines intersect.  It's a terrible name for them, because the name has nothing to do with the common word "vertica" (up-and-down).

The attached image shows an example of a pair of vertical angles.  Another pair is angles AED and CEB.

Answer:

65°

Step-by-step explanation:

x + 25° = 90°

x = ( 90 - 25 )°

x = 65°

Answer:

[tex]d=1.61\times 10^{10}\ miles[/tex]

Step-by-step explanation:

Given that,

The speed of light, v = 300,000,000

eWe need to find the distance light travel in 1 day. We know that,

1 day = 86400 seconds

Distance = speed × time

So,

[tex]d=3\times 10^8\times 86400[/tex]

[tex]d=2.592\times 10^{13}\ m[/tex]

or

[tex]d=0.001610\times 10^{13}\\\\d=1.61\times 10^{-3}\times 10^{13}\\\\d=1.61\times 10^{10}\ miles[/tex]

So, the required distance is equal to [tex]1.61\times 10^{10}\ miles[/tex].

Answer:

360 cm

Step-by-step explanation:

first you find the triangles which is 1/2 (8×3)=12

then multiply by 2=24

I'm not too sure what your long rectangle measurements are but

I think your long measurement is 28, so then multiply 28 by 12 which is 336. then you add that to 24 which is 360

Answer:

The dimensions of the iphone are 2 inches by 7 inches.

Step-by-step explanation:

Given that,

The dimensions of an iPhone are x – 2 and x + 3.

The area of an iphone is 14 sq inches

We need to find the dimensions of the iPhone. It is in the shape of a rectangle. Its area is given by :

[tex]A=l\times b\\\\(x-2)(x+3)=14\\\\x^2-2x+3x-6=14\\\\x^2+x-6-14=0\\\\x^2+x-20=0\\\\x^2+5x-4x-20=0\\\\x(x+5)-4(x+5)=0\\\\(x-4)(x+5)=0\\\\x=4\ and\ x=-5[/tex]

Neglecting negative value

First dimension = (x-2) = (4-2) = 2 inches

Other dimension = (x+3) = (4+3) = 7 inches

Hence, the dimensions of the iphone are 2 inches by 7 inches.

Answer:

number 1 is true

Step-by-step explanation:

9514 1404 393

Answer:

  (d)  Infinitely Many Solutions

Step-by-step explanation:

Each point of intersection between the lines is a solution. When the lines lie on top of each other, there are infinitely many points of intersection, hence ...

  Infinitely Many Solutions

Step-by-step explanation:

Bigger -smaller

hope it is helpful to you

Answer: 25=75  3 =15  15 =5

Step-by-step explanation:

Answer:

1 - 75

3 - 25

5 - 15

Step-by-step explanation:

Hope this helps! Please brainliest!

Answer:

-19,6830x^26

Step-by-step explanation:

The nth term of a geometric sequence is expressed as;

Tn -= ar^n-1

a is the first term

is the number of terms

r is the common ratio

Given

a = -10x^8

r = 30x^10/-10x^8 = -3x^2

n = 10

Substitute

a10 =  (-10x^8)(-3x^2)^10-1

a10 =  (-10x^8)(-3x^2)^9

a10 =  -10x^8)(19,683)x^18

a10 = -19,6830x^26

Hence the tenth term is -19,6830x^26

Answer:

Amar pays the most

Step-by-step explanation:

Amar pays the most, because Mira and Raja split the bill, so they onyl need to pay 1/5 each. However, Amar needs to pay 2/5 which is the most.

Hope this helps!

Answer:

(0.806, 0.839)

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.

[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

In which

z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].

Suppose we take a poll (random sample) of 3653 students classified as Juniors and find that 3005 of them believe that they will find a job immediately after graduation.

This means that [tex]n = 3653, \pi = \frac{3005}{3653} = 0.823[/tex]

99% confidence level

So [tex]\alpha = 0.01[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.01}{2} = 0.995[/tex], so [tex]Z = 2.575[/tex].

The lower limit of this interval is:

[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.823 - 2.575\sqrt{\frac{0.823*0.177}{3653}} = 0.806[/tex]

The upper limit of this interval is:

[tex]\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.823 + 2.575\sqrt{\frac{0.823*0.177}{3653}} = 0.839[/tex]

The answer is (0.806, 0.839)

Answer:

C

Step-by-step explanation:

It's not a since the ranges are both 7

The median of the countryside zoo is smaller than the cityside zoo so b is false.

d is incorrect since we established that the medians are different.