Solve this equation for y: 4x - 7y = 28

Answer: 47+13 =60

60 as a fraction should be 3/5 in simplest form.

Step-by-step explanation:

Answer:

False

Step-by-step explanation:

ir doesn't add up from what i saw

Answer:

\(20\pi\) m

OR

62.8318531 m

Step-by-step explanation:

This is actually pretty simple

The distance the tip travels is the arc length and the length of the pendulum is the radius of a circle

The formula for arc length is Angle in Radians x Radius

So pi/12 * 4 = pi/3 m

We know this is how much it travels every second so it is going at pi/3 m/s

One minute is 60 seconds

pi/3 * 60 = 20pi m

Answer: Your Slope is 4/5

Step-by-step explanation:

Easiest way to find slope on a graph is to

brainliest will be nice

Answer:4/5

Step-by-step explanation:

By means of algebraic handling, the solution of the linear equation 3 · x + 2 · y = - 6 for y is y = - 3  - (3 / 2) · x.

In this problem we have a linear equation in implicit form, that is, a linear equation where none of the variables is not in function of the rest of variables. Now we proceed to solve the linear equation 3 · x + 2 · y = - 6 for y, where y is in terms of x, by algebraic handling:

3 · x + 2 · y = - 6          Given

2 · y = - 6 - 3 · x           Compatibility with addition / Existence of additive inverse / Modulative property

y = - 3  - (3 / 2) · x        Compatibility with multiplication / Existence of multiplicative inverse / Associative and modulative property / Definition of division / Result

By means of algebraic handling, the solution of the linear equation 3 · x + 2 · y = - 6 for y is y = - 3  - (3 / 2) · x.

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9514 1404 393

Answer:

  0.9114

Step-by-step explanation:

The multiplier for a series of changes is the product of the multipliers for each of the changes:

  (1 -2%)(1 -7%) = (0.98)(0.93) = 0.9114

The solutions to the equation 1x² - 16x = 20 are x = 8 + 2√21 and x = 8 - 2√21.

To solve the quadratic equation 1x² - 16x = 20, we need to rearrange it into the standard form ax² + bx + c = 0. Let's simplify the equation step by step:

1x² - 16x = 20

First, move all terms to one side of the equation:

1x² - 16x - 20 = 0

Now we have a quadratic equation in the standard form. To solve it, we can use factoring, completing the square, or the quadratic formula. In this case, factoring may not be straightforward, so let's use the quadratic formula:

x = (-b ± √(b² - 4ac)) / (2a)

For our equation, a = 1, b = -16, and c = -20. Substituting these values into the quadratic formula:

x = (-(-16) ± √((-16)² - 4(1)(-20))) / (2(1))

Simplifying further:

x = (16 ± √(256 + 80)) / 2

x = (16 ± √336) / 2

x = (16 ± √(16 * 21)) / 2

x = (16 ± 4√21) / 2

Simplifying:

x = 8 ± 2√21

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The value of x in this proposition would be the first option i.e. \(-13\frac{1}{4}\)

4/11= -33/x+5,

to get the value of x we need to get the x to the left hand side,

4(x+5)= -33,

4x+20 = -33.

subtracting 20 from both the sides,

4x= -33-20

4x = -53.

dividing both the sides by 4,

x= -53/4

x= \(-13\frac{1}{4}\) ,

which is option A in the given question

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Answer:

(y/x)⁴

Step-by-step explanation:

14x^4y^6/7x^8y^2

= 2x^(-4)/2y^(-4)

= (y/x)⁴

Answer:

2y^4/x^2

Step-by-step explanation:

4x^4y^6 ÷ 7x^8y^2

you will find the GCF of the equation which is: 7x^4y^2 . Then, you will divide both of the equation by the GCF and it will become

14x^4y^6 ÷ 7x^4y^2 = 2y^4

7x^8y^2 ÷ 7x^4y^2 = x^2

then you'll get the answer 2y^4/x^2

Answer:

5 miles

Step-by-step explanation:

add the points together.

it seems like each point is how many miles they ran each day.

1/4 + 2(1/2) + 3/4 + 3(1) = 5

Answer:

19j-9

HOPE THIS HELPS

- Todo ❤️

Step-by-step explanation:

10+9=19j

-7-2=9

Answer: true

Step-by-step explanation:

Answer:

True

Step-by-step explanation:

The slope provided on the screen shows the function of the graph going in a downward direction from left to right, which is how any slope is negative.

Answer:

cute scalene triangle.

Sides: a = 1   b = 2   c = 1.906

Area: T = 0.94

Perimeter: p = 4.906

Semiperimeter: s = 2.453

Angle ∠ A = α = 29.543° = 29°32'36″ = 0.516 rad

Angle ∠ B = β = 80.457° = 80°27'24″ = 1.404 rad

Angle ∠ C = γ = 70° = 1.222 rad

Height: ha = 1.879

Height: hb = 0.94

Height: hc = 0.986

Median: ma = 1.888

Median: mb = 1.147

Median: mc = 1.262

Inradius: r = 0.383

Circumradius: R = 1.014

Vertex coordinates: A[1.906; 0] B[0; 0] C[0.166; 0.986]

Centroid: CG[0.691; 0.329]

Coordinates of the circumscribed circle: U[0.953; 0.347]

Coordinates of the inscribed circle: I[0.453; 0.383]

Exterior (or external, outer) angles of the triangle:

∠ A' = α' = 150.457° = 150°27'24″ = 0.516 rad

∠ B' = β' = 99.543° = 99°32'36″ = 1.404 rad

∠ C' = γ' = 110° = 1.222 rad

Step-by-step explanation:

Step-by-step explanation:

please mark me as brainlest

THE ANSWER IS B I THINK IF ITS WRONG IM SORRY

The sample size and sample proportion have a more significant impact on whether a sample proportion shows significance, while the number of simulated samples in the randomization distribution mainly affects the accuracy and stability of the p-value.

To find the p-value using StatKey with 5,000 simulated samples and determine if there is evidence that the coin is biased at a 5% significance level, follow these steps:
1. Open StatKey and choose the appropriate tool for proportions (you can find this under "Randomization Tests").
2. Enter the sample size, the sample proportion, and the number of simulated samples (5,000) in the given fields.
3. Click "Calculate" or "Simulate" to generate the randomization distribution.
4. Observe the p-value displayed by StatKey.

If the p-value is less than or equal to 0.05 (5% significance level), there is evidence that the coin is biased.

If the p-value is greater than 0.05, there is not enough evidence to conclude that the coin is biased.
Now, let's discuss the impact of each factor on the sample proportion's significance:
1. Sample size:

A larger sample size increases the power of the test, making it more likely to detect a biased coin if it exists. This is because larger sample sizes reduce sampling variability, leading to narrower confidence intervals and more precise estimates.
2. Sample proportion:

A sample proportion that deviates more from the expected proportion (0.5 for a fair coin) increases the likelihood of finding significance, as it indicates a stronger departure from the null hypothesis of no bias.
3. Number of simulated samples in the randomization distribution:

Increasing the number of simulated samples makes the p-value more accurate and stable.

However, the impact of this factor is generally smaller than the other two factors, as the p-value will often converge to a stable value after a certain number of simulations.

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Answer:

P = 0.015x + 60

Step-by-step explanation:

Since Cooper's base pay is $60, he would earn $60 even for selling $0 worth of computers, meaning P= 60 when x=0, which is the y-intercept.

(0,60) is a point on the graph

Since Cooper makes a commision of 1.5% for all sales, the amount of money earned in a given day increases $0.015 for each $1 of sales made (multiply 1 by 0.015). This means the slope of P is equal to 0.015.

Answer:

me too (help)

Step-by-step explanation:

Answer:

15x-48.5x+12.40

= -33.2x+12.40

The nth term of the sequence is aₙ = 48 + 2n

The definition of the function is given as

a₁= 50

aₙ = aₙ₋₁ + 2

The above definitions imply that we simply add 2 to the previous term to get the current term

Using the above as a guide, we have:

The common difference, d = 2

First term, a = 50

The nth term of the sequence is calculated as

aₙ = a₁ + (n - 1)* d

Substitute the known values in the above equation

So, we have the following representation

aₙ = 50 + (n - 1)* 2

So, we have

aₙ = 50 + 2n - 2

Evaluate the like terms

aₙ = 48 + 2n

Hence, the nth term is aₙ = 48 + 2n

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9514 1404 393

Answer:

  the input that will cause function V to have an output of 80

Step-by-step explanation:

The interpretation of a function V(x) is ...

  the output of function V that corresponds to the input x

__

The corresponding interpretation of the inverse function V^-1(x) is ...

  the input to function V that will cause its output to be x

__

Then the meaning of V^-1(80) is ...

  the input to function V that will cause its output to be 80

Answer: A

Step-by-step explanation:

Answer:

SOLUTION: Postulate 2.5 states if two points lie in a plane, then the entire line containing those points lies in that plane. Therefore, the statement is always true. ... The intersection of two planes can be a point. SOLUTION: Postulate 2.7 states if two planes intersect, then their intersection is a line.

Step-by-step explanation:

5th term of the sequence is -4

To find the 5th term in the sequence, we need to substitute n =  5 into the expression given

 \(a_5\) =  26- 6( 5)  

\(a_5\) =  26- 30

\(a_5\) = -4  

The formula given, an =  26- 6n, represents an  computation sequence with a common difference of-6.

This means that each term in the sequence is  attained by obtain 6 from the  former term.  

It's important to note that the formula is written in general form, meaning that it can be used to find any term in the sequence by simply plugging in the  matching value of  n.

 In this case, we were asked to find the 5th term, so we substituted n =  5 into the formula to get a5 = -4.

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Answer:

b, d

Step-by-step explanation:

finished the exam review and was correct (sorry for the late response)

The gap would be filled in the prism shown below as 12 blocks each measuring One-fourth times 1 x 1. 6 blocks each measuring One-half times 1 x 1.

If the prism is such that if we slice it horizontally at any height smaller or equal to its original height, the cross-section is the same as its base, then its volume is:

\(V = B \times h\)

where h is the height of that prism and B is the area of the base of that prism.

The block has a volume of 2 x 5/2.

The remaining part of the block is filled by

12 blocks each measuring One-fourth times 1 x 1.

6 blocks each measuring One-half times 1 x 1.

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Answer:

a)

90% confidence interval for the mean grading time of all composition papers.

(12.47981 , 13.52019)

b)

Appropriate inequality

The interval is  ( 12.47981 < μ < 13.52019)

Step-by-step explanation:

Explanation:-

a)

Given sample size 'n' = 40

Mean of the sample = 13 minutes

standard deviation = 2 min

level of significance = 0.10 or 90%

90% confidence interval for the mean grading time of all composition papers.

\(( x^{-} - Z_{0.1} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.10} \frac{S.D}{\sqrt{n} } )\)

 \(( 13 - 1.645 \frac{2}{\sqrt{40} } , 13 +1.645 \frac{2}{\sqrt{40} } )\)

( 13 - 0.52019 , 13 + 0.52019)

(12.47981 , 13.52019)

b)

The interval is  ( 12.47981 < μ < 13.52019)

Answer:

1) (4x)² - (5)²

2) (4x + 5) (4x -5)

3) Zeros of b are \(\frac{5}{4}\) and \(\frac{-5}{4}\) (can also be 1.25 and -1.25)