A birthday cake was cut into equal pieces, and 10 pieces were eaten. Thefraction below shows how much cake was left over. According to the fraction,
into how many pieces was the cake cut?
1
11
A. 1
B. 10
C. 21
O D. 11
TO
A birthday cake was cut into equal pieces, and 10 - 1

Answers

Answer 1
Answer: The answer is D, 11.

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Suppose that you are in charge of evaluating teacher performance at a large elementary school. One tool you have for this evaluation is reports of the average student reading test score in each classroom. You also know that across the whole school, the average student reading score was 80 points and the standard deviation in scores was 10 points. Determine:(a) If each class has 25 students in it, what is the standard error of the classroom average score?(b) In what range do you expect the average classroom test score to fall 95% of the time?(c) What is the approximate probability that a classroom will have an average test score of 79 or higher?(d) Do you think the probability that a classroom has an average test score of 79 or higher would be greater or smaller if there were only 15 students in a class? Explain your answer in 2-3 sentences.(e) Do you think the probability that a classroom has an average test score of 79 or higher would be greater or smaller if the standard deviation of individual student reading scores was only 5 points (instead of 10)?

Algebra 1 Honors Add Polynomials to find perimeter​

Answers

The perimeter of the quadrilateral is 4z 16.

What is Perimeter?

To calculate the perimeter, or distance around the rectangle, sum all four side lengths. This may be done quickly by adding the length and breadth and then multiplying the total by two because each side length has two lengths. The perimeter formula is perimeter=(length+width)2.

The 4  sides of quadrilateral is z-4.

Now, the Perimeter of quadrilateral

= (z-4) + (z-4) + (z-4) + (z-4)

= 4 (z-4)

= 4z- 16

Thus, the perimeter is 4z- 16.

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Answer:

4z-16 units

Step-by-step explanation:

P=4S

S=z-4

P=4(z-4)

P=4z-16

The perimeter of the rectangle is 4z-16 units.

What should be done to both sides of the equation in order to solve y + 8.5 = 17.2?Add 8.5.
Subtract 17.2.
O Add 17.2.
Subtract 8.5.

Answers

Subtract 8.5 from both sides to solve equation.

What is a expression? What is a mathematical equation?

  • A mathematical expression is made up of terms (constants and variables) separated by mathematical operators. A mathematical equation is used to equate two expressions.
  • A mathematical equation is used to equate two expressions. Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correctanalysis, observations and results of the given problem.

We have the following equation -

y + 8.5 = 17.2

y + 8.5 - 8.5 = 17.2 - 8.5

y = 8.7

Therefore, Subtract 8.5 from both sides to solve equation.

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Answer:

Subtract 8.5

Step-by-step explanation:

To solve the equation, y has to be isolated (only y will be on one side of the equation)

To do this, we have to get rid of the 8.5, so it has to be subtracted from both sides.

So, the correct answer is subtract 8.5

For a certain​ candy, 15​% of the pieces are​ yellow, 5​% are​ red, 20​% are​ blue, 20​% are​ green, and the rest are brown. ​a) if you pick a piece at​ random, what is the probability that it is​ brown? it is yellow or​ blue? it is not​ green? it is​ striped?

Answers

P(Brown) = 100 - 15 -5- 20 - 20 = 40%

P(yellow or blue) = 15 + 20 = 35%

P(not green) = 100 - 20 = 80%

P(striped) = 0%

For
every dog
pet store
there are 3 cats at the pet store. What's the ratio?

Answers

Answer:

1/3?

Step-by-step explanation:

Match the correct y=mx+b equation to the graph:

pls show work/explanation!

Answers

Answer:

y=-3x+2

\boxed{m=-3,\ b=2}

Step-by-step explanation:

Equation of a line

To define the equation of a line, we only need two points through which it passes. The graph shows two clear points to choose: (0,2) and (1,-1)

Set up the equation of the line by using the formula

\displaystyle y-y_1=(y_2-y_1)/(x_2-x_1)(x-x_1)

\displaystyle y-2=(-1-2)/(1-0)(x-0)

Operating

y-2=-3x

Rearranging

y=-3x+2

\boxed{m=-3,\ b=2}

Consider the optimization problem where A m × n , m ≥ n , and b m . a. Show that the objective function for this problem is a quadratic function, and write down the gradient and Hessian of this quadratic.

b. Write down the fixed-step-size gradient algorithm for solving this optimization problem.

c. Suppose that Find the largest range of values for α such that the algorithm in part b converges to the solution of the problem.

Answers

Answer:

Answer for the question :

Consider the optimization problem where A m × n , m ≥ n , and b m .

a. Show that the objective function for this problem is a quadratic function, and write down the gradient and Hessian of this quadratic.

b. Write down the fixed-step-size gradient algorithm for solving this optimization problem.

c. Suppose that Find the largest range of values for α such that the algorithm in part b converges to the solution of the problem.

is explained din the attachment.

Step-by-step explanation: