Plsss help I’ll give u brainlest and 10 points

SSA

Step-by-step explanation:

put name of triangle abc are same

Steve must keep at least 5 people on the job to ensure that the job will be completed on time, assuming that everyone works at the same rate.

This is because after 6 days, 8 people have already completed \($\frac{1}{3}$\)of the job, and the remaining job can be completed by 5 people working at the same rate in 24 days.

Let's assume that the entire job requires 100 units of work to be completed. After 6 days, 8 people have already completed \($\frac{1}{3}$\) of the job, which means they have completed \($\frac{1}{3}\cdot\)100= 33.33$ units of work in 6 days. Their combined rate of work is \($\frac{33.33}{6\cdot 8}\)=0.6944$ units per day per person.

Now, the remaining job that needs to be completed is 100-33.33=66.67 units of work. If we assume that x people need to be kept on the job to ensure that the job will be completed on time, then the equation becomes:\($\frac{66.67}{(30-6)\cdot x}\)=0.6944$

Simplifying this equation, we get: \($x\geq \frac{66.67}{24\cdot 0.6944}\)=4.29$ Since we can't have a fraction number of people, we must round up to the next integer. So, Steve must keep at least 5 people on the job to ensure that the job will be completed on time.

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Answer:

4.25

Step-by-step explanation:

she has a total of 20 dollars and she wats to buy ice cream each at 3.15 for a total of 5 people including her self.

so 3.15(5) is 15.75

then subtract 15.75 from 20

20 - 15.75 = 4.25

The completely factored form of the Wen's polynomial, which has the four terms initial, is,

\((6x^2+7)(x-2)\)

The factor of a polynomial is the terms in linear form, which are when multiplied together, give the original polynomial equation as result.

Wen is factoring the polynomial, which has four terms.

\(6x^3 - 12x^2+ 7x - 14\) '

Take out the greatest common factor from the equation and make separate groups as,

\(6x^2(x - 2)+ 7(x - 2)\\(x-2)(6x^2+7)\)

Rearrange the above equation as,

\((6x^2+7)(x-2)\)

Thus, the completely factored form of the Wen's polynomial, which has the four terms initial, is,

\((6x^2+7)(x-2)\)

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Answer:

A

Step-by-step explanation:

Trust me

Answer:

k = 4.33

Step-by-step explanation:

Cos 30 = 0.8660

Tan 60 = 1.732

2 Tan 60 = 2 (Tan 60)

2 Tan 60 = 2 (1.732)

2 Tan 60 = 3.464

Cos 30 + Tan 60  = 0.8660 + 3.464 = 4.33

k = 4.33

The major methods of recording unstructured observational data are Narrative Description, Field Notes, Audio or Video Recording, Photography, Diagrams or Maps.

The major methods of recording unstructured observational data are:

1. Narrative Description: This method involves writing a detailed, chronological account of the observed events or behaviors, capturing the context and interactions as they occur naturally.

2. Field Notes: In this method, the observer takes brief, concise notes during the observation, focusing on key events, behaviors, or interactions. These notes can be expanded and organized later for further analysis.

3. Audio or Video Recording: Using audio or video equipment, the observer captures the events and interactions in their entirety. This allows for a more accurate record and the ability to review and analyze the data multiple times.

4. Photography: Taking photographs during the observation can provide a visual record of the events and behaviors. These images can supplement other data collection methods and help to illustrate specific aspects of the observation.

5. Diagrams or Maps: Drawing diagrams or maps of the observation setting can help capture the spatial relationships between individuals and objects, as well as the overall layout of the environment.

These methods can be used individually or in combination, depending on the research question and the specific needs of the study. Remember to always respect participants' privacy and obtain informed consent when necessary.

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Answer:

a straight line which is 180°

Use the Secant method to find solutions accurate to within 10⁻⁴ for the given problems.

The Secant method is an iterative root-finding algorithm that approximates the roots of a given equation. It is a modified version of the Bisection method that is used to find the root of a nonlinear equation. In this method, two initial guesses are required to start the iteration process.

The algorithm then uses these two points to construct a secant line, which intersects the x-axis at a point closer to the root. The new point is then used as one of the initial guesses in the next iteration. This process is repeated until the desired level of accuracy is achieved.

To use the Secant method to find solutions accurate to within

10 ⁻⁴ for the given problems, we first need to set up the algorithm by selecting two initial guesses that bracket the root. Then we apply the algorithm until the root is found within the desired level of accuracy. The Secant method is an efficient and powerful method for solving nonlinear equations, and it has a wide range of applications in various fields of engineering, physics, and finance.

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If the value of the euro was $1.30 last week and during last week the euro depreciated by 5 percent, the value of the euro today is $1.235.

If the euro was worth $1.30 last week and depreciated by 5%, we can calculate the new value by multiplying the original value by (1 - depreciation rate).

Mathematically, the new value of the euro can be calculated as follows:

New Value = Original Value * (1 - Depreciation Rate)

New Value = $1.30 * (1 - 0.05)

New Value = $1.30 * 0.95

New Value = $1.235

Therefore, the value of the euro today is $1.235.

Depreciation is a term used to describe the decline in the value of a currency relative to another currency or to a basket of currencies. It can occur due to various reasons, such as changes in interest rates, inflation rates, political instability, or economic growth.

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Answer:

hE WILL HAVE TO DOWN LOAD 50 SONGS

Step-by-step explanation:

The null hypothesis rejected represents there is evidence the proportion of members engaged in professional networking within last month is different from established percentage.

Using a hypothesis test we have,

Let p be the proportion of employees in the company who engage in professional networking within the last month.

The null hypothesis represents,

The proportion of employees who engage in professional networking within the last month is equal to the established percentage of 55%.

H0: p = 0.55

The alternative hypothesis represents ,

The proportion of employees who engage in professional networking within the last month is different from 55%.

Ha: p ≠ 0.55

Use a two-tailed z-test for the proportion to test this hypothesis, with a significance level of 0.05.

The test statistic is,

z = (p₁ - p) / √(p(1-p)/n)

p₁ is the sample proportion

p is the hypothesized proportion

And n is the sample size.

Here,

p = 0.55

n = 980

p₁ = 500/980

   = 0.51.

Substituting these values, we get,

z = (0.51 - 0.55) / √(0.55(1-0.55)/980)

  = -1.96

The critical values for a two-tailed test with a significance level of 0.05 are ±1.96.

Since the test statistic (-1.96) falls within the critical region.

Reject the null hypothesis

Therefore, there is evidence that the proportion of employees who engage in professional networking within the last month is different from the established percentage of 55%.

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Answer:

16

Step-by-step explanation:

To find 80% of 20, multiply .80 x 20

.80×20 = 16

This is how you multiply percentages--put the decimal point 2 places to the left, then multiply.  In this case, you're looking at 80%, so move the decimal point two places to the left

80.0 becomes .80

Then multiply that by the number you're trying to find the percentage of

Answer:

D

Step-by-step explanation: your welcome have a good day

Answer:

C.  \( \dfrac{1}{3x + 1} \)

Step-by-step explanation:

\( \dfrac{x + 2}{x^3 + 2x^2 - 9x - 18} \div \dfrac{3x + 1}{x^2 - 9} = \)

Factor all polynomials.

\( = \dfrac{x + 2}{x^2(x + 2) -9(x + 2)} \div \dfrac{3x + 1}{(x + 3)(x - 3)} \)

\( = \dfrac{x + 2}{(x^2 - 9)(x + 2)} \div \dfrac{3x + 1}{(x + 3)(x - 3)} \)

\( = \dfrac{x + 2}{(x + 3)(x - 3)(x + 2)} \div \dfrac{3x + 1}{(x + 3)(x - 3)} \)

To divide by a fraction, multiply by its reciprocal.

\( = \dfrac{x + 2}{(x + 3)(x - 3)(x + 2)} \times \dfrac{(x + 3)(x - 3)}{3x + 1} \)

Cancel out common factors in the numerator and denominator.

\( = \dfrac{1}{3x + 1} \)

Answer:

The value if x is 0.9875.

Step-by-step explanation:

First, we have to get rid of brackets by expanding :

\(0.5(2x + \frac{3}{4} ) - \frac{1}{3} (0.1 + x) = 1\)

\(0.5(2x) + 0.5( \frac{3}{4} ) - \frac{1}{3} (0.1) - \frac{1}{3} (x) = 1\)

\(x + \frac{3}{8} - \frac{1}{30} - \frac{1}{3} x = 1\)

Next you have to collect like terms :

\(x - \frac{1}{3} x + \frac{3}{8} - \frac{1}{30} = 1\)

\( \frac{2}{3} x + \frac{41}{120} = 1\)

Lastly, you can solve x :

\( \frac{2}{3} x = 1 - \frac{41}{120} \)

\( \frac{2}{3} x = \frac{79}{120} \)

\(x = \frac{79}{120} \div \frac{2}{3} \)

\(x = \frac{79}{80} \)

\( x = 0.9875\)

Triangulation is the method of finding the location of an object based on the measurements made from the two other locations. The above statement is true statement.

Triangulation is the division of a face or plane polygon into a series of triangles, usually with the limitation that each side of a triangle is fully shared by two adjacent triangles. In geometry, triangulation is the division of planar objects into triangles, or more broadly, the division of high-dimensional geometric objects into simplifications. Triangulation of a 3D volume involves subdivision into packed tetrahedra that directly measure distances to points. It is a method for finding the location of the object.

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Answer:

-x -2

Step-by-step explanation:

1- Apply the Distributive Property

2- Calculate the product or quotient

3- Determine the sign

4- Reorder and gather like terms

   Collect coefficients of like terms

   Calculate the sum or difference

We can make a drawing to see better:

7) We know that RM = 4 and MS = 9, so:

The answer is TM = 20.25

8) We know that RS = 20 and RM = 8, so:

The answer is RT = 50.

9) We know that RM = 5 and MS = 7, so:

The answer is TS = 12.043

10) We know that RM = 1/2 and MS = 1/4, so:

The answer is RT = 5/8 = 0.625

So

f(2)

f(3)

f(4)

Answer:

$326.94

Step-by-step explanation:

For this equation you are going to do a exponential function, since we are working with percents. To do this you will make the equation

(starting price)x(1-percent)^(t) t=years

which will create the equation

800(0.88)^t

You will then plug in t=7

800(0.88)^7 =

800(0.409) =

326.94 (you will cut it off at the hundredth position because it is working with money)

When Frederick purchases a cup of coffee, he gets handed €1.65 in change rather than the expected €1.50. The error percentage is 9.09%

The variation between the real value and the predicted value, in relation to the theoretical value, is known as percentage error.

When compared to the real number and expressed in percent format, percentage error seems to be the gap between the anticipated amount and the actual number. The equation is as follows:

To put it another way, you divide the deviation between the true answer and the answer you guessed by the true answer to get the percent.

Amount paid by Fredrick for cup of coffee:  €1.65

Actual amount: €1.50.

percentage error = (amount paid - actual amount)/amount paid * 100 %

percentage error = (1.65 - 1.50)/1.65 * 100

percentage error = 9.09%

Thus, When Frederick purchases a cup of coffee, he gets handed €1.65 in change rather than the expected €1.50. The error percentage is 9.09%

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Answer: it is =4176000000000000

Step-by-step explanation:

(2.9)(100000)(7.2)(10^2)

5(10^−8)

=

(290000)(7.2)(10^2)

5(10^−8)

=

2088000(10^2)

5(10^−8)

=

(2088000)(100)

5(10^−8)

=

208800000

5(10^−8)

=

208800000

5(1/100000000)=

208800000/1

20000000

=4176000000000000

hope i helped

-lvr

To rewrite the expression 1 - cos^2(theta) without using absolute values for the given values of theta (2.5 < theta < 3), we can utilize the trigonometric identity for cosine squared:

cos^2(theta) = 1 - sin^2(theta)

Now, let's substitute this identity into the expression:

1 - cos^2(theta) = 1 - (1 - sin^2(theta))

= 1 - 1 + sin^2(theta)

= sin^2(theta)

Therefore, for the given range of theta (2.5 < theta < 3), the expression 1 - cos^2(theta) is equivalent to sin^2(theta).

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The polynomial equation with roots -26, -2, and 4.39 is:

x³ + 15.22x² - 239.44x + 1049.44 = 0

The given root of 0.11 is not a root of this equation.

Any equation with a sum of terms that includes constant coefficients multiplied by one or more variables raised to a non-negative integer power constitutes a polynomial equation.

If the roots of a polynomial equation are -26, -2, and 4.39, then the factored form of the polynomial equation can be written as:

(x + 26)(x + 2)(x - 4.39) = 0

Expanding this equation gives us:

(x + 26)(x² - 2x - 8.78x + 8.78×2) = 0

Simplifying further, we get:

(x + 26)(x² - 10.78x + 38.44) = 0

Multiplying out the second factor, we get:

x³ - 10.78x² + 38.44x + 26x² - 277.88x + 1049.44 = 0

Combining like terms, we get:

x³ + 15.22x² - 239.44x + 1049.44 = 0

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The two most commonly used measures of variability are variance and standard deviation.

1. Variance: Variance measures how spread out a set of data points is from the mean. It calculates the average of the squared differences between each data point and the mean. The formula for variance is sum of squared differences divided by the number of data points.

Example: Let's say we have a set of data points: 2, 4, 6, 8, and 10. The mean of these data points is 6. The differences between each data point and the mean are: -4, -2, 0, 2, and 4. Squaring these differences gives us: 16, 4, 0, 4, and 16. The sum of these squared differences is 40. Dividing this sum by the number of data points (5) gives us a variance of 8.

2. Standard Deviation: Standard deviation is the square root of variance. It measures the average distance between each data point and the mean. Standard deviation is often preferred over variance because it is in the same unit as the data points, making it easier to interpret.

Example: Using the same set of data points as above, the variance is 8. Taking the square root of 8 gives us a standard deviation of approximately 2.83.

In summary, variance measures how spread out the data points are from the mean, while standard deviation gives us a more intuitive understanding of the variability by providing a measure in the same unit as the data points. These measures help us understand how the data is distributed and how much it deviates from the average.

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Answer:

Option 2

Step-by-step explanation:

Using the quadrstic formula,

\(\tan \theta=\frac{-2 \pm \sqrt{2^2 - 4(\sqrt{3})(-\sqrt{3})}}{2\sqrt{3}} \\ \\ =\frac{-2 \pm 4}{2\sqrt{3}} \\ \\ =\frac{-1 \pm 2}{\sqrt{3}} \\ \\ = -\sqrt{3}, \frac{1}{\sqrt{3}}\)

Case 1

\(\tan \theta=-\sqrt{3} \implies \theta=\frac{2\pi}{3}, \frac{5\pi}{3}\)

Case 2

\(\tan \theta=\frac{1}{\sqrt{3}} \implies \theta=\frac{\pi}{6}, \frac{7\pi}{6}\)

Answer:

13.66 years

Step-by-step explanation:

Given data

P=$510

A=​$1,010.18

R=5%

t= ln(A/P)/r

susbstitute

t= ln(1,010.18/510)/0.05

t=ln1.980/0.05

t= 0.683/0.05

t= 13.66

Hence the time is 13.66 years

The thirteen adjacent digits in the 1000-digit number that have the greatest product are 9, 9, 8, 9, 0, 0, 8, 8, 5, 2, 4, 3, and 5, and the value of this product is 23,514,624,000.

We can begin by storing the 1000-digit number as a string and then iterating over it to find the thirteen adjacent digits with the greatest product:

```c

#include <stdio.h>

int main() {

char num[] = "73167176531330624919225119674426574742355349194934"

"96983520312774506326239578318016984801869478851843"

"85861560789112949495459501737958331952853208805511"

"12540698747158523863050715693290963295227443043557"

"66896648950445244523161731856403098711121722383113"

"62229893423380308135336276614282806444486645238749"

"30358907296290491560440772390713810515859307960866"

"70172427121883998797908792274921901699720888093776"

"65727333001053367881220235421809751254540594752243"

"52584907711670556013604839586446706324415722155397"

"53697817977846174064955149290862569321978468622482"

"83972241375657056057490261407972968652414535100474"

"82166370484403199890008895243450658541227588666881"

"16427171479924442928230863465674813919123162824586"

"17866458359124566529476545682848912883142607690042"

"24219022671055626321111109370544217506941658960408"

"07198403850962455444362981230987879927244284909188"

"84580156166097919133875499200524063689912560717606"

"05886116467109405077541002256983155200055935729725"

"71636269561882670428252483600823257530420752963450";

int length = sizeof(num) - 1; // subtract 1 to exclude null terminator

long long max_product = 0;

for (int i = 0; i < length - 12; i++) {

long long product = 1;

for (int j = 0; j < 13; j++) {

product *= num[i + j] - '0'; // convert digit character to integer

}

if (product > max_product) {

max_product = product;

}

}

printf("%lld", max_product);

return 0;

}

```

In the outer loop, we iterate from index 0 to index 986 to ensure we have at least 13 digits remaining. In the inner loop, we calculate the product of the next 13 digits using the current index as the starting point. We convert each digit character to its integer value by subtracting the character code for '0'. If the product is greater than the previous maximum product, we update the maximum product. Finally, we print the maximum product.

The output is:

```

23514624000

```

Therefore, the thirteen adjacent digits in the 1000-digit number that have the greatest product are 9, 9, 8, 9, 0, 0, 8, 8, 5, 2, 4, 3, and 5, and the value of this product is 23,514,624,000.

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