MATHEMATICS HIGH SCHOOL

the Pentagon in Washington DC is immense in size with an outside wall 921 feet length what is the perimeter of the Pentagon

Answers

Answer 1
Answer: a foot equals 12 inches so multiply and it will give you 11,052 your welcome

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12x12???????? HELP ME
Graph f(x) = -0.5.0 +3.

If xy < zy < 0, is y positive? x < z x is negativeStatement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked
Both statements (1) and (2) TOGETHER are sufficient to answer the question asked; but NEITHER statement ALONE is sufficient

Answers

Answer:

Both statements (1) and (2) TOGETHER are sufficient to answer the question asked

Step-by-step explanation:

Given statement 1 :

xy < zy < 0,

The product of two numbers are negative if either of the numbers are negative.

∵ if xy < 0 ⇒ Case 1 : x > 0 and y < 0

Case 2 : x < 0 and y > 0,

Thus, Statement is not sufficient to prove y is positive,

Now, Statement 2 :

x < z, x is negative,

That is, x < 0

Combining statements (1) and (2),

We get,

xy < 0, x < 0,

⇒ y > 0

That is, y is positive.

Hence, Both statements (1) and (2) TOGETHER are sufficient to answer the question asked

This is an isosceles triangle z=?

Answers

Answer:

Z = 75°

Step-by-step explanation:

Z is equal to 75°

hope that will help you
Z = 75 degrees as it is isosceles triangle

Paul's average for 3 tests was 85. The average of his scores for the first 2 tests was also 85. What was his score for the third test?

Answers

the third test had a score of 85

What's the answer to this math problem 3x +2/5=7

Answers

We have:

3x+2/5=7

3x+2/5=35/5

3x=33/5

x=11/5

Thus, the answer is that x=11/5.

Miley music has a sale on music CDs all music CDs are discounted 15% Marianas receipt indicates that she saved $3 on her CD purchase what is the full price of her music CD before the discount

Answers

Answer: The original price of her music CD before discount is $20.

Step-by-step explanation:

Let x be the original price of her music CD.

Discount rate = 15%

At discount she saved = $3

So, According to question, our equation becomes

15%x= 3

0.15x= 3

x=$20

Hence, the original price of her music CD before discount is $20.
If x is the price before a sale
x-0.15x=x-3
0.85x=x-3
3=0.15x
x=20

The original price is $20

Triangle ABC has three sides with these lengths: AB = 9, BC = 40, and CA = 41. What is the value of cos C? A. 9/41 B. 40/9 C. 40/41 D. 9/40

Answers

The answer is letter C which is 40/41. If you draw a triangle the sides found in the cos C is BC which is equal to 40 and the CA which is equal to 41 or the 40/41. It can not be the AB since it is in the opposite side of the cos C. 
It's a rectangular triangle because:

9² + 40² = 41²
81 + 1600 = 1681
1681 = 1681

Answer: C. cos∡C = 40/41
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