Show work, solve by using square root method

Answer:

c

Step-by-step explanation:

35/2=17.5 *2= 35+35+35= 105

6.5% of 105 is 6.83, so 105+ 6.83= 111.83

Answer:

$204.98

Step-by-step explanation:

Step 1: Add both item cost

\(99.90 + 89.90 = 189.80\)

Step 2: Find the sales tax of the result

\(\frac{8}{100}\times 189.8 = 15.184\)

Step 3: Add the result from the total cost of both items

\(189.80 + 15.184 = 204.98\)

The total cost of the hats and boots including sales tax is 204.98 dollars

Answer:

x 12, y 10 (I think, I'm not really sure since there is nothing to work out)

Ans:  B 63 degree

Step-by-step explanation:

Chord
to find the chord
1/2 or either 0.5

0.5 x 126 = 63
Mark me as Brainliest
Ty , hope it helped

Answer:

B

Step-by-step explanation:

is is correct 63 degrees , Hope this helps !!

In RAND function, when we click anyplace in the succeed sheet use duplicate and afterward glue as values. returns an irregular number that is more noteworthy than or equivalent to 0 and under 1.

The subject of arithmetic incorporates amounts and their varieties, conditions and related designs, shapes and their areas, and where they can be found. The expression "function" alludes to the connection between a bunch of information sources, every one of which has a related result. An association among data sources and results in which each info prompts a solitary, particular outcome is known as a capability. Each capability is given a space and a codomain, or scope. Normally, f is utilized to signify capabilities (x). input is a x. There are four fundamental sorts of capabilities open. in view of the accompanying variables: on capabilities, coordinated capabilities, many-to-one capabilities, inside capabilities, and on capabilities.

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The half-life of this isotope (in hours) is 13.0

Isotopes are variations of chemical elements that have a varied number of neutrons but the same number of protons and electrons. In other words, isotopes are different forms of the same element that have different amounts of nucleons (the sum of protons and neutrons) because of variations in the total number of neutrons in each of their individual nuclei.

An important application of isotopes is in the determination of the isotopic signature of element samples via isotope analysis. This is generally done via the process of isotope ratio mass spectrometry.

28% decay means, 72% remains.

Now,

\(N=N_{n} (\frac{1}{2})^{t/t_{12} } \\72=100(\frac{1}{2} )^{\frac{6.16 hours}{t_{1/2} } } \\(\frac{72}{100} )=(\frac{1}{2} )^{\frac{6.16 hours}{t_{1/2} } } \\\)

Taking long as both sides & solving we get,

\(t_{\frac{1}{2} } = 13.0 hours\)

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Answer: You shouldn't hate trig.

Step-by-step explanation:

SinΘ= opposite/hypotenuse

SinΘ=y/x

Sin(16) = 9/x

x = 9/Sin(16)

x= 32.7 cm

The mass and center of mass of the lamina that occupies the region D and has the given density function p is 57/14 and (14/27, 7/18) respectively.

The center of mass (x―,y―) of a lamina with density function ρ(x,y) is given by

x = M(y)/m, y = M(x)/m

Where, m=∫∫ρ(x,y)dA

Mx=∫∫ yρ(x,y)dA

My=∫∫ xρ(x,y)dA

Given that, D is bounded by y=x^2 and x=y^2

And ρ(x,y)=19√x

Now, for the point of intersection of y=x^2,x=y^2

The lamina is customary, so its focal point of mass is its mathematical focus. Take a lamina with three holes near its perimeter and now suspend it through each hole one at a time.

Here,

The mass density of a lamina is the mass per unit area. Take into consideration the following lamina, whose density varies with the object: On a semicircular lamina D with a radius of three, the density at any point is proportional to the distance from the origin.

We know,

A lamina's centroid is the point at which it would balance on a needle. The point at which a solid would "balance" is called the centroid.

Consider a lamina formed by the intersection of two curves y = f (x) and y = g (x) at points with x-coordinates of x = a and b.

Mass (M) = b a g (x) f (x) d y d x x-coordinate (x) = b a x (x, y) [ g (x) f (x)] d x y-coordinate (y) = b a 1 2 (x, y) [ [ g (x)] 2 [ f (x)] 2] d x.

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The times spent in training is an illustration of proportions

The times spent in training is 80 hours

The given parameters are:

Time spent = 6 hours

Time spent as a percentage = 7.5%

Let the total time spent in training be x.

The scenario is represented by the following equation

Time spent = Time spent as a percentage  * Total Time

So, we have:

6 = 7.5% * x

Express percentage as decimal

6 = 0.075 * x

Divide both sides by 0.075

80 = x

Rewrite as:

x = 80

Hence, the times spent in training is 80 hours

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Answer:

1.5 years.

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 6%/100 = 0.06 per year,

then, solving our equation

t = 162 / ( 1800 × 0.06 ) = 1.5

t = 1.5 years

The time required to

accumulate simple interest of $ 162.00

from a principal of $ 1,800.00

at an interest rate of 6% per year

is 1.5 years (about 1 years 6 months).

Answer:

y= -1/3x+7

Step-by-step explanation:

The line on the graph is a function

The given parameter is the graph

From the graph, we can see that the curve or the line is a quadratic function

As a general rule, all lines represented by a quadratic function are functions

This implies that the line is a function

It should be noted that:

Quadratic equations are second-order polynomial equations and they have the form y = ax^2 + bx + c or y = a(x - h)^2 + k

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Answer:

x=\(\frac{x}{yz}\)

These values were found \(\lim_{x \to -\infty} f(x) = 0\)  & \(\lim_{x \to \infty} f(x) = \infty\) from the given equation.

What is the limit?

A limit in mathematics is the value that a function approaches as its input approaches some value. Limits are used to define continuity, derivatives, and integrals in calculus and mathematical analysis.

We have,

f(x) = 4xe³ˣ / 1

f(x) = 4xe³ˣ

\(\lim_{x \to \infty} f(x) = ?\)l

\(\lim_{x \to -\infty} f(x) = ?\)

\(\lim_{x \to -\infty} f(x) = \lim_{x \to -\infty} 4xe^{3x}\)

It is the form -∞ * 0 which is an undetermined form

Write it has a fraction then apply l'Hospital's Rule

\(\lim_{x \to -\infty} \frac{4x}{1 / e^{3x} } = \lim_{x \to -\infty} \frac{4}{ -3e^{3x} / e^{6x} }\)

\(= \lim_{x \to -\infty} \frac{4}{-3/e^{3x}} } = \lim_{x \to -\infty} \frac{4e^{3x}}{ -3 }\)

\(= \frac{4e^{-x}}{ -3 }\)

\(= \frac{0}{ -3 } = 0\)

\(\lim_{x \to \infty} f(x) = \lim_{x \to \infty} 4xe^{3x}\)

Simply evaluate

\(\lim_{x \to \infty} 4xe^{3x} = \infty * \infty = \infty\)

 (∞*∞ is not an undetermined form).

f(x) = 4xe³ˣ

\(\lim_{x \to -\infty} f(x) = 0\)

\(\lim_{x \to \infty} f(x) = \infty\)

Hence, these values were found \(\lim_{x \to -\infty} f(x) = 0\)  & \(\lim_{x \to \infty} f(x) = \infty\) from the given equation.

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Answer: |t - 15| ≤ 30 ; -30 ≤ t - 15 ≤ 30

Step-by-step explanation:

To set up the equation, we have to find the center, and the tolerance, so that we can use formula "|x - c| ≤ t"

First, we can find the tolerance by adding both number, then dividing by 2 --> -15 + 45 = 30 --> 30/2 = 15, so we now know that the center is 15

Next, we can find the tolerance by finding the distance between the center and one of the number --> 15 - (-15) = 30, so we now know that the tolerance is 30

Now we can set up our equation,

center (c) = 15

tolerance (t) = 30

|t - 15| ≤ 30

Now that we have our equation, we can set up the inequality

|x - c| ≤ t = -t ≤ x - c ≤ t

so,

-30 ≤ t - 15 ≤ 30

Hope this helps!

(sorry it was so long)

Answer:

12.5a + 6s = 264.5   and   a + s = 30

Step-by-step explanation:

They also intersect at (17, 13)

(17 student tickets, 13 adult tickets)

Good Luck!

Answer:

x=7

Step-by-step explanation:

You graph it and find the middle point that would create a line through it and see where it his the x-axis.

\( \huge {\tt{Answer:}} \)

A. DE

Option (A) DE side of the triangle DEF is the longest side.

A triangle is a flat geometric figure that has three sides and three angles. The sum of the interior angles of a triangle is equal to 180°. The exterior angles sum up to 360°.

For the given situation,

The diagram shows the triangle with angles ∠D = 65°, ∠E = 42°.

The sum of the interior angles of a triangle is equal to 180°.

⇒ \(\angle D+\angle E+\angle F=180\)

⇒ \(65+42+ \angle F=180\)

⇒ \(\angle F=180-107\)

⇒ \(\angle F=73\)

The side corresponding to the ∠D is EF,  ∠E is DF,  ∠F is DE

The angle which is greater has the longest side.

⇒ \(\angle F > \angle D > \angle E\)

⇒ \(DE > EF > DF\)

Thus the side DE has the longest length.

Hence we can conclude that option (A) DE side of the triangle DEF is the longest side.

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Answer:

x=5, -3

Step-by-step explanation:

To find the roots, replace y with 0 and solve for x. Hope this helps!

Answer:

84 are red

Step-by-step explanation:

By using the properties of triangles and straight lines we get the values of x as 65° and the value of y as 115°

A) In the given triangles we know that the sum of all the angles is 180 .

Hence :

60 + 55 + c = 180

or, c = 180° - 115°

or, c = 65°

Now the angle marked x is vertical angle to the angle c , hence the value of x is also 65°.

B) Now we know that the value of x is 65°

Again  x + y = 180°

Therefore : 65° + y = 180°  or, y = 180° - 65° or, y = 115°

Three vertices, three sides, and three angles make up a closed triangle. PQR serves as the symbol for a triangle with the vertices P, Q, and R.

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b

こんにちは

mmmmmmmmnnnnnnnnnnnnnnnnnnnnnnn

a. The standard error of the sample mean is 0.40 hours per week

b. The chance HLI will find a sample mean between 4.7 and 5.9 hours is 86.64%

c. The probability that the sample mean will be between 5.1 and 5.5 hours is 38.30%

a. To compute the standard error of the sample mean, we use the formula:

SE = σ / √(n)

where σ is the population standard deviation and n is the sample size.

Given that σ = 3.20 hours per week and n = 64, we have:

SE = 3.20 / √(64) = 0.40 hours per week

b. To find the chance that HLI will find a sample mean between 4.7 and 5.9 hours, we need to calculate the z-scores for these values:

z1 = (4.7 - 5.30) / 0.40 = -1.50

z2 = (5.9 - 5.30) / 0.40 = 1.50

Using a standard normal distribution table or calculator, we can find the probability of the sample mean falling between these two values:

P(-1.50 < z < 1.50) = P(z < 1.50) - P(z < -1.50) = 0.9332 - 0.0668 = 0.8664

Therefore, there is an 86.64% chance that HLI will find a sample mean between 4.7 and 5.9 hours.

c. To calculate the probability that the sample mean will be between 5.1 and 5.5 hours, we first need to calculate the z-scores for these values:

z1 = (5.1 - 5.30) / 0.40 = -0.50

z2 = (5.5 - 5.30) / 0.40 = 0.50

Using a standard normal distribution table or calculator, we can find the probability of the sample mean falling between these two values:

P(-0.50 < z < 0.50) = P(z < 0.50) - P(z < -0.50) = 0.6915 - 0.3085 = 0.3830

Therefore, there is a 38.30% chance that the sample mean will be between 5.1 and 5.5 hours.

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There are two cases when it might be inappropriate to use a linear regression equation for prediction despite significant correlation between two variables are Non-Linear Relationships ,  Outliers

1. Non-Linear Relationships: If the relationship between the two variables is non-linear, a linear regression equation will not accurately capture the relationship and should not be used for prediction.

For example, the relationship between the height and weight of a person might follow a quadratic or cubic relationship and thus, a linear regression equation would not provide accurate predictions.

2. Outliers: If there are outliers in the data, a linear regression equation may be inappropriately influenced by them, leading to inaccurate predictions.

For example, in a dataset of the relationship between a person's height and salary, the salary of a CEO might be an outlier and affect the linear regression equation, leading to inaccurate predictions for other employees.

In these cases, alternative regression models or data transformation techniques might be more appropriate.

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Answer:

Step-by-step explanation:

Area of each face of a cube = 25 ft²

⇒ Side² = 25

Surface area of cube = 6side²

                                     = 6*25

                                      = 150 ft²

Answer:

For anyone who needs it the answer is 150 ft

Step-by-step explanation:

Answer:

Step-by-step explanation:

Let the number = x

2x + 8 ≥ 4x                   Subtract 2x from both sides.

8 ≥ 4x - 2x                    Combine

8 ≥ 2x                           Divide by 2

8/2 ≥ 2x/2                    Combine

4 ≥ x

What this means is that the largest value the x can have is 4. Any number greater that 4 will make the use of ≥ incorrect.

Answer:

eighty-nine point zero four

Step-by-step explanation:

Answer:

u mean 89.04 = eighty-nine point zero four?

Step-by-step explanation:

Answer:

See the attached graph

Step-by-step explanation:

The solution is the labelled point of intersection in the graph

Answer:

I think it is supplementary