Solve for y 4x+5y=20

Answer:

x = 7

Step-by-step explanation:

all we know is that she had 1 brownie at the end, in the end she gave half her brownie to tyler, so add one who will get 1 1/2, before that she split her brownies between her friends, so multiply 1 1/2 by 2 and you will get 3, before that she gave 1/2 a brownie to Kiran, so we would add 1/2 to 3 and get 3 1/2, before that she first split it in half for a her friends, so at last,  multiply 3 1/2 by 2 and you will geet 7 as your final answer.

The answer would be 7!

You would take 1 and add 1/2 to it

= 1 1/2

Then, multiply by 2

= 3

Then add 1/2 to that

= 3 1/2

Then multiply 2 one more time

= 7

This is because Mai gave half of her brownie and then half more of her brownie to each person she gave it to

So you would add 1 + 1/2 and then multiply by 2

Since she did this to 2 people you would repeat one more time!

Hope this helped!

Answer:

I think it's a because

12÷42= 3.5

and

56÷16=3.5

so

10×3.5=35

Step-by-step explanation:

To find y'(4) by implicit differentiation, we differentiate both sides of the equation 3x^2 + 3x + xy = 4 with respect to x.

Differentiating 3x^2 + 3x + xy = 4, we get:

6x + 3 + y + xy' = 0

Since we know y(4) = -14, we substitute x = 4 and y = -14 into the differentiated equation:

6(4) + 3 + (-14) + (4)(-14)' = 0

Simplifying this equation, we have:

24 + 3 - 14 - 56y' = 0

Combining like terms, we get:

13 - 56y' = 0

Solving for y', we find:

56y' = 13

y' = 13/56

Therefore, y'(4) = 13/56.

To find an equation of the tangent line to the graph at the point (4, -14), we can use the point-slope form of a linear equation, y - y1 = m(x - x1), where (x1, y1) is the point (4, -14) and m is the slope y'(4).

Substituting the values, we have:

y - (-14) = (13/56)(x - 4)

y + 14 = (13/56)(x - 4)

Simplifying, we get:

y = (13/56)x - (13/14) - 14

y = (13/56)x - (13/14) - (196/14)

y = (13/56)x - 209/14

Thus, an equation of the tangent line to the graph at the point (4, -14) is y = (13/56)x - 209/14.

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Put the values

Area:-

\(\\ \rm\Rrightarrow \dfrac{1}{2}(24)(8+13)\)

\(\\ \rm\Rrightarrow 12(21)\)

\(\\ \rm\Rrightarrow 252m^2\)

Answer:

Step-by-step explanation:

Divide the quadrilateral field into two triangles by its diagonal.

Area of a triangle is given by the equation 1/2*base*height.

The top triangle's area = 1/2*24*13 = 156 m^2

The bottom triangle's area = 1/2*24*8 = 96 m^2

Combining, the area of the field = 156 + 96 = 252 m^2

We have the following:

The total cost to rent the boat will be:

3.5 hours x $ 12 per hour + $ 5 = $ 47. If she splits the cost with a friend, they each play $ 47 / 2 = $ 23.5

Answer:

man I

Step-by-step explanation:

hey

Answer:

manatap Fanny neff

Franko

Step-by-step explanation:

alucard

Answer:

4/9

Hope i helped

Option 2: 9 km seems to be the most likely answer if the hiker's motion is along a straight line.

Displacement refers to the distance between an initial point and a final point of an object's motion, measured in a straight line. In other words, it is the shortest distance between the starting point and ending point of an object's motion, regardless of the path taken.

I would need the position-time graph to accurately determine the displacement of the hiker after 4 hours. However, assuming that the hiker's motion is along a straight line, I can make an educated guess based on the options provided.

Option 1: 8 km - If the hiker's displacement after 4 hours is 8 km, it means that the hiker traveled at a constant speed of 2 km/h (since 2 km/h x 4 hours = 8 km). This would result in a straight line on the position-time graph with a constant slope of 2 km/h.

Option 2: 9 km - If the hiker's displacement after 4 hours is 9 km, it means that the hiker traveled at an average speed of 2.25 km/h (since 2.25 km/h x 4 hours = 9 km). This would result in a straight line on the position-time graph with a constant slope of 2.25 km/h.

Option 3: 6 km - If the hiker's displacement after 4 hours is 6 km, it means that the hiker traveled at an average speed of 1.5 km/h (since 1.5 km/h x 4 hours = 6 km). This would result in a straight line on the position-time graph with a constant slope of 1.5 km/h.

Option 4: 7 km - If the hiker's displacement after 4 hours is 7 km, it means that the hiker traveled at an average speed of 1.75 km/h (since 1.75 km/h x 4 hours = 7 km). This would result in a straight line on the position-time graph with a constant slope of 1.75 km/h.

Without the position-time graph, it is difficult to determine the correct answer. However, based on the options provided.

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Answer:

He earns $58.5

Step-by-step explanation:

i did the math

Step-by-step explanation:

(1/2)³ = 1³/2³ = 1/8

that is all there is to it.

\(▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪\)

The Correct choice is ~

\(\boxed{y = \bigg({\dfrac{1}{2} \bigg) }^{x - 3} + 1}\)

\(\\ \sf\longmapsto y=\left(\dfrac{1}{2}\right)^{x-3}+1\)

Graph attached

The standard deviation of the 10 scores is 5. (D)

The standard deviation is a measure of the amount of variability in a set of scores. It is calculated by taking the square root of the variance, which is given by S² in this case.

In this problem, the variance is 25, so the standard deviation is simply the square root of 25, which is either 5 or -5 but will neglect negative value as X>0.

S² = 25

=> S=5

This value tells us how spread out the scores in the sample are, with a larger standard deviation indicating a more variable distribution.

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Answer:

y=x+6.

Step-by-step explanation:

the slope-interception form is: y=s*x+i, where s - slope, i - interception.

according to the data in the graph i=6, s=1, then finally,

y=x+6.

Answer: A.Subtract 9 from both sides

Step-by-step explanation:

Answer A: Subtract 9 from both sides

Explanation: You want to solve the x from this equation, then the first thing is to put the number that has no valiable x to the other sides, so in this equations, we want to move 9 to the right side, so we subtract 9 from both sides.

Answer:

A. Subtract 9 from both sides

Step-by-step explanation:

It is the "Correct Answer"

Answer:

Step-by-step explanation:

-3^0 doesn't simplify to the same thing as 3^0 because the first 3 is negative and the second is positive.

hope this helped :))

Answer:

There is a negative

Step-by-step explanation:

Every positive number to the 0 power is 1

Every negative number to the 0 power is -1

We have rank A ≤ 3 and nullity A ≥ 1. However, it is possible that the nullity is actually greater than 1 (for example, if V1 = V2 = V4 = 0), so the best answer is A. Rank A ≤ 3 and nullity A ≥ 2.

The rank of a matrix is the number of linearly independent rows or columns. From the given information, we can see that V3 is a linear combination of V1 and V2, and V4 is a linear combination of V1 and V2. This means that at least two of the rows (or columns) in A are linearly dependent, which implies that rank A ≤ 3.

The nullity of a matrix is the dimension of its null space, which is the set of all vectors that satisfy the equation Ax = 0 (where x is a column vector). Using the given information, we can rewrite the equation for V4 as 2V1 - V2 - V4 = 0, which means that any vector x that satisfies this equation (with the corresponding entries in x corresponding to V1, V2, and V4) is in the null space of A. This means that the nullity of A is at least 1.

Combining these results, we have rank A ≤ 3 and nullity A ≥ 1. However, it is possible that the nullity is actually greater than 1 (for example, if V1 = V2 = V4 = 0), so the best answer is A. rank A ≤ 3 and nullity A ≥ 2.

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(b) 5.Let's first express 1 + 2 + ... + n as the sum of an arithmetic series:

1 + 2 + ... + n = n(n+1)/2

Now, we need to find the positive integers n for which 6n is divisible by n(n+1)/2, or equivalently, for which n+1 is divisible by 3.

If n+1 is divisible by 3, then either n+1 = 3, 6, 9, ... or n+1 = 4, 7, 10, .... The first case gives n = 2, 5, 8, ... and the second case gives n = 3, 6, 9, ....

Thus, there are 5 possible values of n: 2, 3, 5, 6, and 9.

An arithmetic series is a sequence of numbers where each term is obtained by adding a constant value to the previous term. This constant value is called the common difference. For example, the sequence 2, 5, 8, 11, 14, ... is an arithmetic series with a common difference of 3. The formula for the nth term of an arithmetic series is: a_n = a_1 + (n-1)d, where a_n is the nth term, a_1 is the first term, n is the position of the term in the sequence, and d is the common difference. The sum of the first n terms of an arithmetic series can be calculated using the formula: S_n = n/2(a_1 + a_n).

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Answer

41 and 81

Step-by-step explanation:

Answer:

\(a=x\\\\b = 0\)

Step by step explanation:

\(x = a - \sqrt b~~~~~~~~~~...(i)\\\\x = a + \sqrt b ~~~~~~~~~~...(ii)\\\\\text{From eq (i) and eq (ii),}\\\\~~~~a - \sqrt b = a+ \sqrt b\\\\\implies \sqrt b + \sqrt b = a-a \\\\\implies 2 \sqrt b = 0\\\\\implies \sqrt b = 0\\\\\implies b = 0\\\\\text{Substitute b = 0 in eq (i):}\\\\~~~~~~x = a- \sqrt {0}\\\\\implies x = a -0\\\\\implies x = a\\\\\implies a = x\\\)

The percent of attendance figures that differs from the mean by 1500 persons or more is 6.68%.

From the question above, Mean μ = 10,000

Standard Deviation σ = 1,000

The formula for z-score is :

z = (x-μ) / σ

Where, x = observation

z = z-score

Mean μ = 10,000

Standard Deviation σ = 1,000

From the above formula, let's calculate z-score for x = 11,500

z = (x-μ) / σ

z = (11,500 - 10,000) / 1000

z = 1.5

Now, find the probability of attendance figures that differs from the mean by 1500 persons or more.

P(z ≥ 1.5) = 0.0668

To find the percentage, we need to multiply the above value by 100.

P(z ≥ 1.5) × 100 = 0.0668 × 100 = 6.68%

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Answer:

42 cannot be divided into 926 .. however 926 can be divided by 42 and the answer will be 22.04 rounded of to 22

so your answer is: 22

Answer: 7.62

Step-by-step explanation:

\(AB=\sqrt{(-2-1)^{2}+(-3-4)^{2}}=\sqrt{9+49}=\sqrt{58} \approx 7.62\)

Given the following question:

To find the answer we need to isolate the variable.

Your answer is f = 1.

Step 1

Find the value of x using the elimination method

Given;

Hence,

Step 2

Find the value of y

Hence, x = -1 and y = 2

Answer: 43

Step-by-step explanation:

Multiply 8.6 and 10 then subtract 7 then you do 4.3 times 10 then you subtract then subtract the values you get

Answer:

D

Step-by-step explanation:

100% is 1-

5% is 0.05

1-0.05 = 0.95

0.95(1.09m + 2.79n)

Answer:

d

Step-by-step explanation:

The dimension of the max garden is 125*125 and the max area is 15625 square feet.

Let the length and width of the garden be L and B.

Now, let the barn is along the width. So, now the width became = B-50

So the perimeter = 2(L+B-50)

Now to fence the garden we need 400 feet material.

So, 2(L+B-50) = 400

L+B-50 = 200

B = 250-L .........(i)

So the area of the total garden is given by,

A = LB = L(250-L) \(=250L-L^2\)

So now differentiating the area with respect to length,

dA/dL = 250-2L

\(\frac{d^2A}{dL^2}=\) -2

Now, dA/dL = 0 gives,

250-2L = 0

2L = 250

L= 125

At L = 125, \(\frac{d^2A}{dL^2}=-2 < 0\)

Max A = \(250\times125-125^2=15625\) square feet

So area is maximum when L = 125 feet.

Then the width = B = 250-125 = 125 feet.

Hence the dimension of the max garden is 125*125 and the max area is 15625 square feet.

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Part A: To find the total surface area of the rectangular prism, we need to calculate the areas of all six faces and then add them together.

Given dimensions:

Length = 7 feet

Width = 3 feet

Height = 4.8 feet

Surface Area of each face:

Front and back faces: Length * Height

= 7 feet * 4.8 feet

= 33.6 square feet

Top and bottom faces: Width * Length

= 3 feet * 7 feet

= 21 square feet

Side faces: Width * Height

= 3 feet * 4.8 feet

= 14.4 square feet

Total Surface Area:

2 * (Front and back faces) + 2 * (Top and bottom faces) + 2 * (Side faces)

= 2 * 33.6 square feet + 2 * 21 square feet + 2 * 14.4 square feet

= 67.2 square feet + 42 square feet + 28.8 square feet

= 137 square feet

Therefore, the total surface area of the bench is 137 square feet.

Part B: To calculate the cost of covering the bench with ceramic tiles, we need to multiply the total surface area by the cost per square foot.

Cost per square foot = $0.89

Total Surface Area = 137 square feet

Total cost to cover the bench:

= Cost per square foot * Total Surface Area

= $0.89 * 137 square feet

= $121.93

Therefore, it will cost $121.93 to cover the bench with ceramic tiles.

Answer:

Step-by-step explanation:

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