1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Slav-nsk [51]
2 years ago
7

Please Help me Solve this question

Mathematics
2 answers:
DochEvi [55]2 years ago
8 0

Answer:

Step-by-step explanation:

Correct Answer: C

We can rely on the guess and check method to easily solve this problem. Let’s first pick arbitrary values of x and y to eliminate some answer choices.

Let’s consider the case where |x| and let x = 3 and y = -10.

Because x/y = -3/10 < 1, answer choice A is incorrect.

Because |x|2 = (3)2 = 9 and |-10| = 10, we have that |x|2 < y, so answer choice B is also incorrect.

Because x2 + 1= (3)2 + 1 = 10 and y2 + 1 = (10)2 + 1 = 101, we have that x2 + 1 < y2 + 1, so answer choice D is also incorrect.

Now, let’s consider the case where |x|>|y| and let x = 3 and y = -2.

Then, x-2 = 1/x2 = 1/9 and y-2 = 1/y2 = 1/4. This means that x-2 < y-2 , so answer choice E is also incorrect.

This means that answer choice C is correct. We can manipulate the inequality to see why this is true: (x/3 – 5) > (y/3 – 5)

We add 5 to both sides: x/3 > y/3

We multiply both sides by 3: x > y.

We know this is true since we are given that x > 1 > -1 > y, which simplifies to x > y.

Serjik [45]2 years ago
4 0
C is the correct answer
You might be interested in
What is the answer to question 3. Letter A?
lutik1710 [3]
Your answer should be Line Graph.
6 0
3 years ago
Read 2 more answers
Estimate the square root of 50 to the hundredths place
Anarel [89]
We have the following expression:
 root (50)
 Rewriting we have:
 root (50) = root (2 * 25)
 root (2 * 25) = 5 * root (2)
 5 * root (2) = 7.071067812
 Round to the hundredths place:
 root (50) = 7.07
 Answer:
 
the square root of 50 to the hundredths place is:
 
7.07
5 0
3 years ago
Read 2 more answers
(05.02) PLEASE ACTUALLY ANSWER AND EXPLAIN WELL!! :)
Nadusha1986 [10]

Answer:

  • x = 40°

Step-by-step explanation:

Straight angle is equal to 180°

Angle x, 60° and 80° form a straight angle.

<u>Then we have following equation to solve for x:</u>

  • x + 60° + 80° = 180°
  • x + 140° = 180°
  • x = 180° - 140°
  • x = 40°
6 0
3 years ago
Read 2 more answers
Diane sold t-shirts at a festival and made a profit of $84 . She made $6 for each t-shirt she sold. Her total expenses were $30.
sweet-ann [11.9K]

Answer:

9 t-shirts

Step-by-step explanation:

Well if she made a profit of $30 that would mean that you would subtract $84-$30 which would give you $54. Than you would divide 54/6 to find how much t-shirts she sold.

-Hope this helped (this is one of the first questions ive answered )

7 0
3 years ago
Plz do not delete my questions. I will give you 30 points for these three questions. A thanks. And a 5 star rate. But in order f
poizon [28]
(1) <span>The surface area of the square pyramid = 4 * (area of one face) + area of the base
area of one face = 0.5 * 34.2 * 28.4
area of the base = 34.2 * 34.2
∴ </span>The surface area of the pyramid = 4 * (<span>0.5 * 34.2 * 28.4) + </span><span>34.2 * 34.2

By comparing the last answer with the answer of </span>Vikram, we find that:
He used the wrong expression to represent the area of the base of the pyramid.
=========================================================

(2) The surface area of the rectangular pyramid
= area of two face with the height 36.5 + area of two face with the height 37.8 + area of the base

area of two face with the height 36.5 = 2 * 0.5 * 36.5 * 25.6
area of two face with the height 37.8 = 2 * 0.5 * 37.8 * 16.2
are of the base = 25.6 * 16.2

Total area = (2 * 0.5 * 36.5 * 25.6) + (2 * 0.5 * 37.8 * 16.2) + (25.6 * 16.2)
                = (36.5 * 25.6) + (37.8 * 16.2) + (25.6 * 16.2)
note: 2 *0.5 = 1

By comparing the last answer with the answer of Tracy , we find that:
<span>Tracy’s answer will be correct because she made use of the fact that 2 (1/2) = 1 in her expression.
=========================================================
</span>
(3)
the total surface area of this rectangular pyramid =
= area of two face with the height 52 + area of two face with the height 60 + area of the base

area of two face with the height 52 = 2 * 0.5 * 52 * 78 = 4,056  m²
area of two face with the height 60 = 2 * 0.5 * 60 * 50 = 3,000  m²
are of the base = 78 * 50 = 3900  m²

Total area = 4,056 + 3,000 + 3,900 = 10,956 m²



















3 0
3 years ago
Read 2 more answers
Other questions:
  • 72,500/2=?<br> 72,500/4=?<br> 72,500/6=?<br> Add all.<br> =?
    15·2 answers
  • A sandwich shop offers 4 different kinds of bread and 6 different kinds of meat. How many different sandwiches can be made using
    8·2 answers
  • Write an algebraic expression for n" divide by 6
    9·1 answer
  • 4. The use of wind power is growing rapidly. Global wind power generating
    13·1 answer
  • Solve the equation.(Y-9)-(y+2)=4y
    13·2 answers
  • Joaquin can read one comic book in 15 minutes. Write and solve an equation to determine how many comic books he can read in 75 m
    9·1 answer
  • Mrs. Mendoza and Mrs. Martinez decided to combine their classes for the day. What equation matches if Mrs. Mendoza has 25 studen
    13·1 answer
  • Yea so like anyone know this​
    15·2 answers
  • 6. Calculate the slope of the line given the two points: (4,9) and (7,11).
    13·1 answer
  • Mark cast a shadow that is 4 feet long. At the same time, a nearby tree casts a shadow that is 20 feet long. If mark is 6 feet t
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!