pls help giving brainless. no link!!!!​

Answer:

3

Step-by-step explanation:

3 is half of 6 and 6 is the total of that line

3 is also the radius of the circle

Answer:

The origin (0,0)

Step-by-step explanation:

Answer:

25 winners

Step-by-step explanation:

Answer:

S^2 = sample variance

x_i = the value of the one observation

\bar{x} = the mean value of all observations

n = the number of observations

Step-by-step explanation:

In probability theory and statistics, variance is the expectation of the squared deviation of a random variable from its mean. In other words, it measures how far a set of numbers is spread out from their average value.

hope i helped:)

Answer:

Personification is your answer.

Hope it helps!!!

Hi there!

[tex]\large\boxed{cos(\frac{\theta}{2} )= \frac{3}{\sqrt{7}}}[/tex]

[tex]\large\boxed{tan(\frac{\theta}{2}) = \frac{\sqrt{5}}{3}}[/tex]

Begin by recalling that:

sin(θ) = O/H,  so:

Opposite side = 3√5

Hypotenuse = 7

We can solve for the adjacent sign using the Pythagorean Theorem:

7² = (3√5)² + b²

49 = 45 + b²

b² = 4

b = 2.

Thus, cosθ = 2/ 7

Use the half angle identity to solve for cos(θ/2):

cos(θ/2) = √(1 + cosθ)

Plug in the value of cosθ:

= √(1 + 2/7) = √9/7, or 3 /√7

Thus:

[tex]cos(\frac{\theta}{2}) = \frac{3}{\sqrt{7}}[/tex]

Calculate tan(θ/2) using the same process but with a different formula:

tan(θ/2) = √(1 - cosθ / 1 + cosθ)

Substitute in the value of cosθ:

tan(θ/2) = √(1 - 2/7)/(1 + 2/7)

= √(5/7)/(9/7) = √5/9 = √5/3

Answer:

17

Step-by-step explanation:

3(-2)^2 - 2(-2) + 1

12 - 2(-2) + 1

12 + 5

17

Answer:

f(-2) = 3(-2)² - 2(-2) + 1 = 17

Step-by-step explanation:

f(x) = 3x² - 2x + 1

f(-2) = 3(-2)² - 2(-2) + 1

= 3 × 4 + 4 + 1

= 12 + 5

f(-2) = 17

Thus, f(-2) = 3(-2)² - 2(-2) + 1 = 17

-TheUnknownScientist

Answer: 4, 4

Step-by-step explanation: this is on g.oo.g.le

Answer:

5

Step-by-step explanation:

Answer:

x = 4

y = 4√3

tan 60° = 1.7321

Step-by-step explanation:

sin 30 = 4/8

0.5 = x/8

x = 4

y² = 8² - 4² = 64 - 16 = 48

y = √48 = 4√3

tan 60° = (4√3)/4 = √3 = 1.7321

Answer:

15

Step-by-step explanation:

1) multiply  numerator x numerator and denominator x denominator

- 24/12

2) simplify the fraction

-24 : 12 = -2

12 : 12 = 1

-2/1 = -2

3) inverte the therms of -2/15 and change the sign of operation from : to x

- 2 x (-15/2)

4) multiply the numerators remembering that  minus x minus = +

30/2

5) simplify the fraction

30 : 2 = 15

2:2 = 1

15/1 = 15

Answer:

65536

Step-by-step explanation:

(4^3)^2×4^2

4^6×4^2

4^8

65536

Answer:

$753.34

Step-by-step explanation:

trust me it is $753.34

Answer:

Just find the button to ask a question. Search around for it.

Step-by-step explanation:

Answer find the button to ask a question.  you can search around for it

Step-by-step explanation:

Answer:

A sample size of 385 is needed.

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 - 0.95}{2} = 0.025[/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 - 0.025 = 0.975[/tex], so Z = 1.96.

Now, find the margin of error M as such

[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]

In which [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.

You feel that a reasonable estimate of the standard deviation is 10.0 hours.

This means that [tex]\sigma = 10[/tex]

What sample size is needed so that the expected margin of error of your estimate is not larger than one hour for 95% confidence?

A sample size of n is needed. n is found when M = 1. So

[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]

[tex]1 = 1.96\frac{10}{\sqrt{n}}[/tex]

[tex]\sqrt{n} = 1.96*10[/tex]

[tex](\sqrt{n})^2 = (1.96*10)^2[/tex]

[tex]n = 384.16[/tex]

Rounding up:

A sample size of 385 is needed.

Answer:

Q + 601 = -104

Subtract 601 from both sides

Q = -705

Answer:    -705

Step-by-step explanation:

q+601=-104

q=-104-601

q=-705

Answer:

(3,4)

Step-by-step explanation:

Answer:

2500+6% per year for 3 years would be 2950.

Answer:

AREA: 49.2 miles

PERIMETER: 49.2

Step-by-step explanation:

in finding the area, multiply by 4 the same because it has the same sizes, A=s⁴ or Side x side x side x side

In finding the Perimeter

you need to add 12.3 miles to four sizes or same sizes

P= 12.3 + 12.3 + 12.3 + 12.3

Answer:

a. use a computer program to select the locations have a rewards program and those that don't.

Step-by-step explanation:

Randomization refers to an important statistical procedure used to eliminate bias in a study. With randomization, all subjects in the study possess equal chances of being selected. In the study scenario described above, randomly choosing half of their total location to partake in the reward program would involve the use of a technique which isn't liable of introducing bias into the study either deliberately or systematically. The use of store managers or other human in the selection process won't be totally convincing at preventing bias. Hence, a computer program will do.

A large firm that has a chain of the grocery stores has implemented a reward member program to increase the visits of patrons. In order to check this, they test the same at 60 different locations.  

Hence the option is A is correct.

Learn more about the firm that owns a chain of grocery stores wanted to see.

brainly.com/question/12385859.

Answer:

Less

Step-by-step explanation:

Answer:

No, the sum of the two smaller sides must be greater than the longer side.

In this case this would be just a straight line.

[tex]\huge{\textbf{\textsf{{\color{pink}{An}}{\red{sw}}{\orange{er}} {\color{yellow}{:}}}}}[/tex]

The given lengths won't form a triangle. The sum of the 2 smaller sides should be greater (not equal too) than the longest side.

so, the longest side her is 12ft

so the smaller sides are 4ft, and 8ft.

the sum of this two sides is 12ft which same as longest side (not greater)...

so it won't form a triangle, here it will just form points on lines.

Answer:

triangle and cylinder is your answer

Answer:

90units²

Step-by-step explanation:

area of a triangle= ½base *height

area = ½*12*15

area= 90units²

Answer:

divide 4 by 204 and that's your answer

Answer:

It's C

Step-by-step explanation:

The directions explain what the teacher is thinking (the way they tell us to do the test without saying it). Directions are good because you can reread them in case your forgot :-/

Answer:

chicken

Step-by-step explanation:

Answer:

ID-=35'-

Step-by-step explanation:

Answer: three dimensional figure and plane.

Step-by-step explanation:

A cross section is the intersection between a (three dimensional figure) and also a (plane).

When an object is being cut straight, the shape that we get is referred to as the cross section. We should note that several parallel cross sections will be firmed when we cut a particular object into slices.