MATHEMATICS COLLEGE

Translate into a variable expression.the square of the difference between a number n and fifty

Answers

Answer 1
Answer:

Answer:

f(n)= (n-50)²

Step-by-step explanation:

The difference between a number n and fifty:

  • n - 50

Square of this difference:

  • (n-50)²

It would look like this as variable expression:

  • f(n)= (n-50)²

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Answers

Answer:

1.02 units3

Step-by-step explanation:

18/15 =1.02
Answer is 1.02 ......

Sharon and Dani make invitations for a party.Sharon makes 27 invitations. That is 3 times as many as Dani makes.write and solve an equation to find the number of invitations Dani makes

Answers

Answer:

81 Invitations, 27 times 3 = 81

Step-by-step explanation:

Evaluate the following trigonometric expression

Answers

Answer:

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hope it helps

Reflections and transformations

Answers

STATEMENTS                                 REASONS
1. ∠X ~= ∠Z;  XY~=ZY                      1. Given
2. ∠Y~=∠Y                                         2. Reflexive Property
3. ΔXYB ~= ΔZYA                              3. ASA Congruence Theorem
4. AZ~=BX                                        4. Corresponding Parts of Congruent                                                                        Triangles are Congruent

~= means congruent to
Hope that helped!

Choose the statement below that describes the relationship between a circles diameter and circumference. A. Circumference times diameter is always π. B. Diameter divided by circumference is always π. C. Circumference divided by diameter is always π. D. There is no relationship between circumference and diameter.​

Answers

Answer:

C

Step-by-step explanation:

Solve for x: x^2 + 14x + 49

Answers

Answer: -7twice

Step-by-step explanation:

This is a question on root of quadratic equation. The interpretation of the question

x² 14x + 49 is

x² + 14x + 49 = 0.meaning that we are to find two possible values for x that will make the expression equal 0.

We can use any of the methods earlier taught. For the purpose of this class, I am using factorization methods

x² + 14x + 49 = 0

Now, find the product of the first and the last terms, is

x² × 49 = 49ײ

Now find two terms such that their productbis 49x² and their sum equals 14x, the one in the middle.

We have several factors of 49x² but only one will give sum of 14x. Because of the time, I will only go straight to the required factors .

49x² = 7x × 7x and the sum gives 14x the middle terms..

Now we now replace the middle one by the factors and then factorize by grouping.

x² + 14x + 49 = 0

x² + 7x + 7x + 49 = 0

x(x + 7) + 7(x + 7) = 0

(x + 7)(x + 7). = 0

Now to find this value of x,

x + 7 = 0

x. = -7twice.

The root of the equation = -7twice.
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