Andy got 28 out of 50 problems correct. What percentage did Andy get correct?

Answer: B.) -54

Step-by-step explanation: view screenshot

Answer:

420 seconds is equal to 7 min

So 7 to 10 or 7 : 10

pls brainliest

These are the steps that you should follow in order to make the necessary calculations to convert 420 Seconds to Minutes. In order to convert from [s] to [min], we have to devide the amount of Seconds by 60.

Then the second step, is to substitute the amount of Seconds with the value of 420 and calculate the division. After successfuly calculating it the result should for 420 Seconds to Minutes should be 7

So 7 to 10 or 7 : 10

Hope this helped!

Have a great day

There are 4,368 different ways to select an 11-player soccer team from a group of 16 players.

The combination formula is used to determine the number of ways to select items from a collection where the order of selection is irrelevant.

We can use the combination formula to determine the number of ways to select an 11-player soccer team from a group of 16 players. The combination formula is:

n choose k = n! / (k! * (n - k)!)

where n is the total number of items, k is the number of items to choose, and ! denotes the factorial function (i.e., the product of all positive integers up to and including the argument).

In this case, we want to choose k = 11 players from a group of n = 16 players. Therefore, the number of ways to select an 11-player soccer team from a group of 16 players is:

16 choose 11 = 16! / (11! * (16 - 11)!) = 4368

Therefore, there are 4,368 different ways to select an 11-player soccer team from a group of 16 players.

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The 30-60-90 triangle is shaped like half of an equilateral triangle.

A special right triangle with angles 30°, 60°, and 90° is called a 30-60-90 triangle. Since 30° is the smallest angle in the triangle, the side opposite to the 30° angle is always the smallest.

The side opposite to the 60° angle is the longer leg, and finally, the side opposite to the 90° angle is the largest side of the right triangle, also known as the hypotenuse.

30°-60°-90° Triangle Rule:

In a 30-60-90 triangle, we can find the measure of any of the three sides by knowing the measure of at least one side in the triangle. This is known as the 30-60-90 triangle rule.

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Answer:

150

Step-by-step explanation:

all you have to do is multiply 30 times 5.

6 miles per hour

Explanation:

\(30 \div 5 = 6\)

\(hope \: that \: helps\)

Answer

Sorry but you didn’t put a table but at least I can answer this a table can be shown by following the same rule by adding, subtracting, multiplication or division. yeah thats right

Step-by-step explanation:

cant not solve unless u explain

When the value of A(22) = 188 and d = 19 are given then the value of a₁ is -211. The correct answer is option B. The problem seems to be related to arithmetic sequences.

where A(n) represents the nth term of the sequence and a₁ represents the first term of the sequence. We can use the formula for the nth term of an arithmetic sequence:

A(n) = a₁ + (n-1)d

where d is the common difference between consecutive terms.

We are given that A(22) = 188 and d = 19. Substituting these values in the formula, we get:

188 = a₁ + (22-1)19

Simplifying this equation, we get:

188 = a₁ + 399

a₁ = 188 - 399

a₁ = -211

Therefore, the value of a₁ is -211, which is option B.

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Answer:

= $28.90

Step-by-step explanation:

To propagate the error for the given functions, we can use the rules of error propagation.

Let's consider each function separately:

a. For the function y = 5asin(x), where a is a constant:

To propagate the error, we need to consider the derivative of the function with respect to x. In this case, the derivative is cos(x).

Therefore, the propagated error for y is σy = |5a * cos(x) * σx|.

b. For the function y = ax + 2z, where a is a constant:

The propagated error for y is σy = |a * σx + 2 * σz|.

c. For the function y = \(bxz^2\), where b is a constant:

The propagated error for y is σy = \(|(xz^2)\)* σb + (2bxz) * σx + (2bxz) * σz|.

d. For the function y = bln(x), where b is a constant:

The propagated error for y is σy = |(b/x) * σx|

e. For the function f(x, y) = \(yx^2 + y^2:\)

To propagate the error for this function, we need to consider the partial derivatives of f with respect to x and y. The propagated error for f is given by:

σf =\(sqrt((∂f/∂x)^2 * σx^2 + (∂f/∂y)^2 * σy^2),\)

where ∂f/∂x is the partial derivative of f with respect to x, and ∂f/∂y is the partial derivative of f with respect to y.

f. For the function f(x, y) = x + y/(x - y):

The propagated error for f is σf = \(sqrt((∂f/∂x)^2 * σx^2 + (∂f/∂y)^2 * σy^2),\)

where ∂f/∂x is the partial derivative of f with respect to x, and ∂f/∂y is the partial derivative of f with respect to y.

Please note that these formulas assume that the errors in the variables (σx, σy, σz, etc.) are independent and have Gaussian distributions.

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The probability that Bill will choose apple pie and Laura will choose strawberry cheesecake for dessert is \(\frac{1}{16}\).

You want to know the probability that Bill will choose apple pie and Laura will choose strawberry cheesecake for dessert.

Step 1: Determine the probability of each individual event.
Since there are 4 options on the dessert menu, the probability of Bill choosing apple pie is \(\frac{1}{4}\), and the probability of Laura choosing strawberry cheesecake is also \(\frac{1}{4}\).

Step 2: Calculate the joint probability of both events happening.
To find the probability of both events happening, multiply the individual probabilities: \((\frac{1}{4}) (\frac{1}{4}) = \frac{1}{16}\)

So, the probability that Bill will choose apple pie and Laura will choose strawberry cheesecake for dessert is \(\frac{1}{6}\).

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Answer:

8x^2+16x+16

Step-by-step explanation:

The combined area is the sum of both expressions.

2x^2-13x+21+6x^2+29x-5

8x^2+16x+16

8(x^2+2x+2)

You're right. The multiple choice is just wrong.

Answer:

+3

Step-by-step explanation:

opposite of -3 is +3

hope it helps you :)

Regarding the exponential function y = 3(2)^x, we have that:

An exponential function is defined as follows:

y = ab^(x/n).

In which the parameters are defined as follows:

The function for this problem is given as follows:

y = 3(2)^x.

Hence the parameters are given as follows:

At x = 3, the numeric value of the function is obtained as follows:

y = 3 x 2^3

y = 3 x 8

y = 24.

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Answer: A≈1385.44m²

Step-by-step explanation:

A=πr2=π·212≈1385.44236m²

Answer:

Step-by-step explanation:

it is 2x

6x^3 + 4x^2 - 13x - 5

Answer: 5

Step-by-step explanation:

  8-2b=-2

8-2b-8=-2-8

    -2b=-10

-2b/-2=-10/-2

       b=5

Answer:6528

Since there are 2 tires, both of which are $130,056 you would need to divide by 2 to get the price of the tires separately.

Answer:

10.75 is the answer I think

Answer:

B

Step-by-step explanation:

Apply the Pythagorean Theorem to determine whether or not the given triplets represent right triangles or not:

I. 5 feet and 13 feet:  5^2 + 12^2 = 13^2 is TRUE

II.  9 ft and √63 ft:  9^2, 63, 12^2:  63 + 81 do add up to 144  TRUE

III.  2, 10, 12^2:  2 + 10 do NOT add up to 144.  FALSE

Answer B is correct

By applying the slope of a line and the y-intercept formula, the following are the answer to each table:

Slope of a line (gradient) shows the value or degree of incline on a straight line.

If it is known that two points are passed by a straight line, for example (x₁,y₁) and (x₂,y₂), then the gradient can be obtained by the formula:

m = ∆y/∆x

   = (y₂ - y₁) / (x₂ - x₁)

Y-intercept is the point where the line intersects the y-axis. It is the intersection of the function's graph with the y-axis when x = 0.

For every table, we pick 2 points to calculate the slope and y-intercept:

Table 1:

(x₁,y₁) and (x₂,y₂) = (-5,-4) and (0,-2)

m = (y₂ - y₁) / (x₂ - x₁)

   = (-2 + 4) / (0 + 5)

   = 2/5 (option S)

y-intercept is obtained when x = 0, thus (0,-2) is the y-intercept (option O)

Table 2:

(x₁,y₁) and (x₂,y₂) = (2,0) and (4,3)

m = (y₂ - y₁) / (x₂ - x₁)

   = (3 - 0) / (4 - 2)

   = 3/2 (option N)

y-intercept is obtained when x = 0, so we substitute this value into the formula given (x₂,y₂) = (4,3)

 m = (y₂ - y₁) / (x₂ - x₁)

3/2 = (3 - y₁) / (4 - 0)

  6 = 3 - y₁

  y₁ = -3

Thus, (0,-3) is the y-intercept (option K)

Table 3:

(x₁,y₁) and (x₂,y₂) = (1,-5) and (3,-3)

m = (y₂ - y₁) / (x₂ - x₁)

   = (-3 + 5) / (3 - 1)

   = 1 (option M)

y-intercept is obtained when x = 0, so we substitute this value into the formula given (x₂,y₂) = (3,-3)

m = (y₂ - y₁) / (x₂ - x₁)

1 = (-3 - y₁) / (3 - 0)

3 = -3 - y₁

 y₁ = -6

Thus, (0,-6) is the y-intercept (option B)

Table 4:

(x₁,y₁) and (x₂,y₂) = (1,3) and (3,1)

m = (y₂ - y₁) / (x₂ - x₁)

   = (1 - 3) / (3 - 1)

   = -1 (option A)

y-intercept is obtained when x = 0, so we substitute this value into the formula given (x₂,y₂) = (3,1)

m = (y₂ - y₁) / (x₂ - x₁)

-1 = (1 - y₁) / (3 - 0)

-3 = 1 - y₁

y₁ = 4

Thus, (0,4) is the y-intercept (option Q).

Table 5:

(x₁,y₁) and (x₂,y₂) = (1,3) and (2,6)

m = (y₂ - y₁) / (x₂ - x₁)

   = (6 - 3) / (2 - 1)

   = 3 (option P)

y-intercept is obtained when x = 0, so we substitute this value into the formula given (x₂,y₂) = (2,6)

m = (y₂ - y₁) / (x₂ - x₁)

3 = (6 - y₁) / (2 - 0)

6 = 6 - y₁

y₁ = 0

Thus, (0,0) is the y-intercept (option J)

Table 6:

(x₁,y₁) and (x₂,y₂) = (-6,6) and (0,3)

m = (y₂ - y₁) / (x₂ - x₁)

   = (3 - 6) / (0 + 6)

   = -1/2 (option F)

y-intercept is obtained when x = 0, thus, (0,3) is the y-intercept (option G)

Table 7:

(x₁,y₁) and (x₂,y₂) = (0,-5) and (2,0)

m = (y₂ - y₁) / (x₂ - x₁)

   = (0 + 5) / (2 - 0)

   = 5/2 (option E)

y-intercept is obtained when x = 0, thus, (0,-5) is the y-intercept (option L)

Table 8:

(x₁,y₁) and (x₂,y₂) = (0,1) and (3,3)

m = (y₂ - y₁) / (x₂ - x₁)

   = (3 - 1) / (3 - 0)

   = 2/3 (option H)

y-intercept is obtained when x = 0, thus, (0,1) is the y-intercept (option D)

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Answer:

5x-8=42

Step-by-step explanation:

5x-8=42

   +8  +8

5x=50

50÷5

10

Answer:x=5

Step-by-step explanation:

First we do the parenthesis

-4(7+2x)=-7x-33

To get

-28+-8x=7x+-33

and

-8x-28=-7x-33

Then we Add 7x to both sides.

-8x-28+7x=-7-33+7x

-x-28=-33

Then we Add 28 to both sides.

-x-28+28=-33+28

-x=-5

Lastly Divide both sides by -1.

-x/-1=-5/-1

X=5

Answer:

Part B The manager of The Gadget Factory wants to make sure that the next shipment costs no more than $15,000. Write an inequality that shows the amount of money that can be spent. Graph the inequality on the number line. Let n=the amount of money spent.

Step-by-step explanation:

The inequality equation is n ≤ 15,000 , where n is the amount of money spent

Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.

In an inequality, the two expressions are not necessarily equal which is indicated by the symbols: >, <, ≤ or ≥.

Given data ,

Let the inequality equation be represented as A

Now , the value of A is

Let the amount of money spent be represented as n

And , the next shipment costs no more than $15,000

So , n ≤ 15,000   be equation (1)

Therefore , the value of A is n ≤ 15,000 and the graph is plotted

Hence , the inequality equation is n ≤ 15,000

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Answer:

It is C

Step-by-step explanation:

To get the new coordinates you would move the shape up the y-axis 8 times, and right on the x-axis 8 times as well.

Answer:

C

Step-by-step explanation:

You can either compare two similar points or just count the units on the graph

The equation is 12.50h + 25= 75

The number of hours is 4

Ms Nishino uses zipcar

She only wants to spend $75 each month

Zip charges $25 a month plus $12.50 per hour of car rental

The equation can be written as follows

12.50h + 25= 75

collect the like terms

12.50h= 75-25

12.50h= 50

h= 50/12.50

h= 4

Hence the number of hours Ms.Nishino can rent from Ziper each month is 4 hours

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The system of inequalities that matches the graph is defined as follows:

The first solid line has a positive slope and goes through (-1, -3) and (0, 0). Everything to the left of the line is shaded, hence this is the upper bound of the interval, as it is a solid line, it is a closed interval.

This line has an intercept of zero and a slope of 3, as when x increases by one, y increased by 3, hence the constraint is defined as follows:

y ≤ 3x

he second dashed line has a negative slope and goes through (-2, 3) and (1, -3). Everything to the right of the line is shaded, meaning that this is the lower bound of the interval, with an open interval.

When x increased by 3, y decayed by 6, hence the slope of the line is of:

m = -6/3 = -2.

Then:

y = -2x + b.

When x = 1, y = -3, then the intercept is given as follows:

-3 = -2 + b

b = -1.

Thus the constraint is of:

y > –2x – 1.

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The correct statement regarding the solution to the system of equations is given as follows:

b. (1,2) is a solution to both the lines A and B.

We want to obtain the graphic solution for the system of equations, hence we obtain the point of intersection of the two equations.

This point of intersection is a solution to both of the equations, hence it is the solution to the system of equations.

The coordinates of the point of intersection in this problem are given as follows:

(1,2).

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Answer:

the answer is 107.4

More info

20 percent off

You will pay $71.4 for a item with original price of $89.25 when discounted 20%. In this example, if you buy an item at $89.25 with 20% discount, you will pay 89.25 - 17.85 = 71.4 dollars.

brainliest pls

Step-by-step explanation: