HELP!!! ASAP!! MARKING BRAINIEST!!!

Answer:

8 significant figures should be provided.

Step-by-step explanation:

I believe I am correct, but check your answer anyways.

Answer:Compose a paragraph that identifies and describes each of the three Siberian regions.

Step-by-step explanation:

Explaining the Concept:

To get the perimeter of this square, we will first get the value of one side

Since all the sides of a square are equal, we will find the length of one of the side from the triangle EOF

Finding the length of one side of the triangle:

In triangle EOF:

Using the pythagoras's theorem

EO²+OF² = EF²

(5)² + (5)²=  side²       [since EF is a side of the square]

side²=  50

side = √50

side = 5√2 units

Perimeter of the Square:

We know that the perimeter of a square is 4 times its side

Perimeter  = 4 * side

Perimeter = 4 * 5√2

Perimeter = 20√2 units

If the triangle is right angled then the sides should form a Pythagorean triple.

That is the square of the biggest should be equal to the sum of the squares of the other two.

Otherwise it is not a right angled triangle.

So we test

Hence the answer is false

The quadratic function that includes the given points is given by y = 3/5x² + 6/5x + 6.

When a polynomial function has one or more variables and the highest exponent of any one of the variables is two, the function is said to be quadratic. A "polynomial function of degree 2," then, is a quadratic function.

A quadratic function is one that has the formula f(x) = ax2 + bx + c, where a, b, and c are all integers with a not equal to zero. A parabola is the shape that makes up the graph of a quadratic function. The basic "U" shape of a parabola is the same whether it opens upward or downward, or with a different "width" or "steepness."

If we put the values of points in the above equation, then we get.

Putting point (0,6) we get

6 = 0 + 0 + c

=> c = 6

Putting point (2,8) we get

8 = 4a + 2b + 6

=> 2 = 4a + 2b

=>  = 2a + b                  ......(1)

Putting point (3,-3) we get

-3 = 9a + 3b + 6

=> -9 = 9a + 3b

=> -3 = 3a + b                 ......(2)

From equation (1) b = 2a. Substitute the value of b in equation (2) we get

3 = 3a +  2a

=> a = 3/5

Now, b = 6/5

The quadratic function that includes the given points is given by y = 3/5x² + 6/5x + 6.

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After 4 half-lives, only 1/16th (or 0.0625) of the initial amount of the radioactive isotope will remain.

The amount of a radioactive isotope remaining after a certain number of half-lives can be calculated using the formula:

Amount remaining = Initial amount × (1/2)^(number of half-lives)

In this case, we are given the initial amount as "grams" and we want to find out the amount remaining after 4 half-lives.

So, the equation becomes:

Amount remaining = Initial amount × (1/2)^4

Since each half-life reduces the quantity to half, (1/2)^4 represents the fraction of the initial amount that will remain after 4 half-lives.

Simplifying the equation:

Amount remaining = Initial amount × (1/16)

Therefore, after 4 half-lives, only 1/16th (or 0.0625) of the initial amount of the radioactive isotope will remain.

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The required highway department needs to sample at least 77 days to achieve a precision of 300 cars with 99 percent confidence.

To calculate the required sample size given the desired precision and confidence level, we can use the formula for the confidence interval of a population mean:

CI = x ± Z * (σ/√n)

Where:

CI = Confidence interval width (desired precision)

x = Sample mean

Z = Z-score corresponding to the desired confidence level

σ = Population standard deviation (unknown, so we use the sample standard deviation as an estimate)

n = Sample size (unknown, what we want to find)

Since the desired confidence level is 99 percent, the Z-score corresponding to a 99 percent confidence level is approximately 2.576 (from the standard normal distribution table).

Given that the sample mean is 14,205 cars and the sample standard deviation is 1,010 cars, and the desired precision is 300 cars, we can plug in these values and solve for the required sample size (n):

300 = 2.576 * (1010/√n)

Now, solve for n:

√n = 2.576 * 1010 / 300

√n ≈ 8.732

n ≈ (8.732)^2 ≈ 76.27

Since the sample size must be a whole number (you can't have a fraction of a day), we round up to the nearest whole number. Therefore, the highway department needs to sample at least 77 days to achieve a precision of 300 cars with 99 percent confidence.

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Answer:

A = 28

B = 2

C = 29

Step-by-step explanation:

28×2+29 = 85

28+2×29 = 86

Answer:

1/2(6-8), 1/2(-3+7)=-1,2

Answer: C - (-1, 2)

Step-by-step explanation:

Circle 1 has center at (0, 0)

The tangent passes through the center and point (1, -2).

Equation of tangent at (1, -2):

If the same line is tangent to circle 2 then they have one common point.

Solve the system:

Substitute x:

We see only one point of contact, (3, -1), this proves the line is tangent to circle 2 as well.

Given circle:

Rewrite the equation of the circle as:

The center is (7/6, 1) the radius is √229/36

The length of the tangent t is the leg of the right triangle with another leg r being the radius and the hypotenuse d being the distance between the center and the external point:

Answer:

k = -17 + 4x

Step-by-step explanation:

Simplifying

4x + -1k = 17

Reorder the terms:

-1k + 4x = 17

Solving

-1k + 4x = 17

Solving for variable 'k'.

Move all terms containing k to the left, all other terms to the right.

Add '-4x' to each side of the equation.

-1k + 4x + -4x = 17 + -4x

Combine like terms: 4x + -4x = 0

-1k + 0 = 17 + -4x

-1k = 17 + -4x

Divide each side by '-1'.

k = -17 + 4x

Answer:

∠ GJK = 102°

Step-by-step explanation:

(2x + 92) and (3x + 63) are same- side interior angles and sum to 180° , so

2x + 92 + 3x + 63 = 180

5x + 155 = 180 ( subtract 155 from both sides )

5x = 25 ( divide both sides by 5 )

x = 5

Then

∠ GJK = 2x + 92 = 2(5) + 92 = 10 + 92 = 102°

Answer:

50

Step-by-step explanation:

140- 40=100

100÷2=50

x=50

Answer:

Step-by-step explanation:

First, let us substitute x and y values: -7 = -2(-5) + 4

Next, let us simplify using the substitution property of equality: 14 = -7 (SEE BELOW MORE INFO).

Now, this does not make sense yet because 14 cannot possibly equal -7. Therefore, we must add a b value, therefore leading us to the equation:

14 + b = -7

by simplifying, we can conclude that b = -21

Finally, we can plug in the b-value into our original equation:

y = -2x + 4 - 21

After simplifying, we get y = -2x - 17. When this is graphed, we can see that -2x - 17 intersects (-5, -7).

Answer:

2) Strong Negative Correlation

Step-by-step explanation:

With the value of r we have both the information about the sign of the relationship and the strength of this relationship.

As the value of r is negative, we can conclude that the correlation between x and y is negative.

Also, as the absolute value of r is close to 1, we can conclude that this relationship is strong.

The strength can also be seen in the value of r2, which is also close to 1, but this value does not give information about the sign.

The value of the slope a, being negative, can also tell us that the relation between x and y is a negative correlation.

We used R to analyze age and %fat data, including mean, median, correlation, boxplots, and scatter plot.

(a) To calculate the mean, median, and standard deviation of age and %fat, you can use the following R code:

# create age and %fat vectors

age <- c(23, 23, 27, 27, 39, 41, 47, 49, 50, 52, 54, 54, 56, 57, 58, 58, 60, 61)

fat <- c(9.5, 26.5, 7.8, 17.8, 31.4, 25.9, 27.4, 27.2, 31.2, 34.6, 42.5, 28.8, 33.4, 30.2, 34.1, 32.9, 41.2, 35.7)

# calculate mean

mean_age <- mean(age)

mean_fat <- mean(fat)

# calculate median

median_age <- median(age)

median_fat <- median(fat)

# calculate standard deviation

sd_age <- sd(age)

sd_fat <- sd(fat)

(b) To draw the boxplots for age and %fat, you can use the following R code:

# create boxplots

boxplot(age, main="Boxplot of Age")

boxplot(fat, main="Boxplot of Body Fat Percentage")

Interpretation: The boxplot for age shows that the median age is around 50, with the range of ages from 23 to 61. The boxplot for %fat shows that the median percentage of body fat is around 31%, with a range from around 8% to 42%.

(c) To draw a scatter plot, you can use the following R code:

# create scatter plot

plot(age, fat, xlab="Age", ylab="% Fat", main="Scatter plot of Age and Body Fat %")

Interpretation: The scatter plot shows that there is a positive correlation between age and %fat, with older adults generally having a higher percentage of body fat.

(d) To check the distribution of age and %fat, you can use the following R code:

# check distribution with histograms

hist(age, main="Histogram of Age", xlab="Age")

hist(fat, main="Histogram of Body Fat Percentage", xlab="% Fat")

(e) To calculate the correlation between age and %fat, you can use the following R code:

# calculate correlation

cor(age, fat)

(f) To compute the covariance between age and %fat, you can use the following R code:

# compute covariance

cov(age, fat)

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Answer:

B only

Step-by-step explanation:

Triangles A and C are similar, but not congruent to each other. Similar triangles have proportional sides and congruent angles, while congruent triangles have congruent sides and congruent angles.

Therefore, only B is correct

The question is asking for pairs of congruent triangles but lacks key information needed to accurately answer this, such as lengths or angles. Congruent triangles are identified in geometry based on either side-lengths or angles.

The question is about congruent triangles, which in mathematics means triangles that have the same size and shape. But to accurately answer which pairs show two congruent triangles, we need more information. The options provided include 'A', 'B', and 'C' but without knowing more about these elements (for example their lengths or angles), it is impossible to determine which are congruent. Congruent triangles are identified in geometry based on either side lengths (SSS: Side-Side-Side, SAS: Side-Angle-Side, ASA: Angle-Side-Angle) or angles (AAS: Angle-Angle-Side, HL: Hypotenuse-Leg for right triangles). Without this vital information, we cannot definitively answer the question. Be sure to verify all the properties required to prove two triangles congruent.

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Option E Step 2 has the fault as the simplification of x²-9=(x+3)(x-3) and the problem has (x-3)(x-3) as the simplification as a²−b²=(a+b)(a−b)

The breaking or decomposition of an entity (such as a number, a matrix, or a polynomial) into a product of another entity, or factors, whose multiplication results in the original number, matrix, etc., is known as factorization or factoring in mathematics. Expanding brackets in reverse is a process known as factorising. Fully factorizing an expression entails putting it in brackets by eliminating the factors with the highest common denominator. Finding the highest common factor between all of the terms in the expression is the simplest way to factorize.

here,

the correct factorization of 4/(x²-9) will be

=4/(x+3)(x-3)

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Answer:

15 units

because the y-coordinates are the same, simply take the absolute difference of the x-coordinates. |-8 - 7| = |-15| = 15

(we take the absolute difference because distance can never be negative)

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Answer:

Step-by-step explanation:

Volume of the entire figure = L (Area 1  + Area 2)

where L = 10 m

Area 1 (blue prism) = 4 x 3 = 12 m²

Area 2 (brown prism = 1 x 7 = 7 m²

plugin  values into the formula:

Volume of the entire figure = L (Area 1  + Area 2)

                                             = 10 (12 + 7)

                                             = 120 m³ + 70 m³

                                             = 190 m³

Answer:

Option A

................

Using thie model ,The answer is D. 27.

To calculate 9÷1/3 using the model below, we can imagine dividing the green rectangle into thirds vertically. Each third would contain 3 cells.

Then, we can see that there are a total of 9 cells in the rectangle. Since we are dividing by 1/3, we need to find out how many sets of 1/3 are in 9.

We can see that there are 3 sets of 1/3 in each row (since each row contains 3 cells, which are thirds). So, in total, there are 3 rows of 3 sets of 1/3, which gives us:

9÷1/3 = 3 rows x 3 sets of 1/3 = 9 sets of 1/3 = 27

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Answer:

224 ounces

Step-by-step explanation:

1 pound is 16 ounces, 14 multiplied by 16 is 224

every pound equal 16 ounces so 14 × 16 = 224

If the amount of time in seconds, t, it takes for a bungee jumper to free fall is given by the function t equals the square root of the quantity d over 16. The distance the jumper fall is: A 400 feet.

Using this formula to find the distance by solving for d

t=√d/q

Where:

t = Time = 5 seconds

d = Distance = ?

q = Quantity = 16

So,

5 seconds=√d/16

d=16x5²

d=16 × 25

d= 400 feet

Therefore we can conclude that the correct option is A.

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Answer:

14.24%

Step-by-step explanation:

We have found that the yield to call (YTC) formula is:

YTC = [C + (F-P) / N] / [(F + P) / 2]

Where:

C = Periodic coupon amount = 95

P = Current Price = 980

F = Redemption amount = 1150

N = time left to redemption = 3

We replace:

YTC = [95 + (1150-980) / 3] / [(1150 + 980) / 2]

YTC = 0.1424

In other words, the yield to call (YTC) is equal to 14.24%

Answer:

A X + 3y = 18

Step-by-step explanation:

If each box contains 20 bars and Pamela's mother purchased 5 boxes

To get the number of candy bars Pamela's mother have, we will simply multiply the number of box by the number oc candy in each box

That is; 5 x 20bars = 100 candy bars

Hence Pamela's mother have 100 candy bars

Answer:

The set A = { 1,2,3,4,5,6,7,8,9}

Step-by-step explanation:

Step(i):-

Given that the set

 { x/x/ is a natural number less than 10 }

Natural numbers :

The natural numbers are

          { 1,2,3,4,5,6,7,8,9,10,.........}

The set A =  { x/x/ is a natural number less than 10 }

The set A = { 1,2,3,4,5,6,7,8,9}

Point d is at (5, -5), which is five units to the right of the origin on the x-axis and five units below the origin on the y-axis. Similarly, point e is at (7, 3), point f is at (-1, 5), and point G is at (-3, -3).

The given points, d (5, -5), e (7, 3), f (-1, 5), and G (-3, -3) form quadrilateral DEFG. To plot these points, we can first draw the x and y axes on a graph paper.

Then, we can plot each point by locating its x-coordinate on the x-axis and its y-coordinate on the y-axis.

After plotting the points, we can click on the "Graph Quadrilateral" button to see the quadrilateral DEFG. It should be a closed shape with four sides, connecting the four points in the given order.

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The number of bags filled by the pet shop is 879 and the number of treats they gave to the groomer is 4.

The four basic operations of arithmetic can be used to add, subtract, multiply, or divide two or even more quantities.

They cover topics like the study of integers and the order of operations, which are relevant to all other areas of mathematics including algebra, data processing, and geometry.

As per the data given in the question,

Total number of dog treats in the shop = 6157

Number of treats per bag = 7

Extra treats will be given to the groomer.

Then, the number of bags will be,

6157/7 = 879.57

This means that a total of 879 bags are there, with 7 pieces of treats per bag.

So, the total number of treats in 879 bags will be,

879 × 7 = 6153

So, the amount of treats left for the groomer is,

6157 - 6153 = 4 treats.

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Answer: The range is 20, Standard Deviation, σ: 6.8702256149271

Step-by-step explanation:

I hope it helped!

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