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
vekshin1
3 years ago
5

So how difficult is it to get straight a's​

Mathematics
1 answer:
Veronika [31]3 years ago
3 0

Answer:

pretty hard but its worth it

Step-by-step explanation:

You might be interested in
Which expression is equivalent to 36x2 - 25?
Dimas [21]

Answer:

The equivalent expression is: (6x + 5)*(6x - 5)

Step-by-step explanation:

This expression is called the difference of two squares.

It has the following format: a^{2} - b^{2}

It is factored as: a^{2} - b^{2} = (a-b)*(a+b)

In this question:

a^{2} - b^{2} = 36x^{2} - 25

So

a^{2} = 36x^{2}, then a = \sqrt{36x^{2}} = 6x

b^{2} = 25, then b = \sqrt{25} = 5

So

The equivalent expression is: (6x + 5)*(6x - 5)

3 0
3 years ago
Five double-digit numbers We have five consecutive positive double-digit integers. If we swap places on the numbers in the large
barxatty [35]

Answer:

  • 33

Step-by-step explanation:

<u>Let the numbers are:</u>

  • x, x + 1, x + 2, x + 3 and x + 4
  • Their sum is 5x + 10
  • Their mean is (5x + 10)/2 = x + 2

If we swap the digits on the largest number, the sum increases by 1 more than x + 2

<u>We are looking for the number x + 4 = ab such that:</u>

  • ba - ab = ab - 2 + 1
  • ba = 2ab - 1
  • 10b + a = 2(10a + b) - 1
  • 10b + a = 20a + 2b - 1
  • 8b = 19a - 1
  • 19a = 8b + 1

<u>By trial method we get the solution:</u>

  • a = 3, b = 7

<u>Since x + 4 = 37, the lowest number is:</u>

  • x = 37 - 4 = 33

<u>Lets verify:</u>

  • 33, 34, 35, 36, 37

<u>The sum is:</u>

  • 5*33 + 10 = 175

<u>The mean is:</u>

  • 35

<u>Change the largest number tp 73 and find the sum again:</u>

  • 175 + (73 - 37) = 175 + 36 = 175 + 35 + 1

The sum has increased by 1 more than 35

3 0
2 years ago
Dmitri wants to cover the top and sides of the box shown with glass tiles that are 3 5 mm square How many tiles does he need 20
Anna35 [415]
Lets split the box in pieces and then add:
top = 20*15 = 300
sidesA = 2*20*9 = 360, is multiplied  by 2 cause there are 2 sides like this
sidesB = 2*9*15 = 270, is multiplied  by 2 cause there are 2 sides like this
so in total we have:
total = 300 + 360 + 270 = 930 cm^2
if we express this quantity in mm^2 we have:
<span>1cm² = 100 mm²</span>total = 930*100 = 93000 mm^2
so if the tiles are 5 mm^2 we need:
total tiles = <span>93000/5 = 18600
we need 18600 tiles of 5 mm^2</span>
8 0
4 years ago
What is 4(x-3)-3x+1=-13
scZoUnD [109]

Answer:

x=-2

Step-by-step explanation:

8 0
4 years ago
Read 2 more answers
1. Define Line, Line segment and Ray.
weqwewe [10]

Answer:

Line :-

A line is defined as a line of points that extends infinitely in two directions. It has one dimension, length. Points that are on the same line are called collinear points.

Line segments :-

A straight line which links two points without extending beyond them. The points P and Q are called the 'endpoints' of the segment. ... The word 'segment' typically means 'a piece' of something, and here it means the piece of a full line, which would normally extend to infinity in both directions.

Ray :-

A part of a line with a start point but no end point (it goes to infinity) Try moving points "A" and "B": line.

Complementary Angles :-

Two Angles are Complementary when they add up to 90 degrees (a Right Angle). They don't have to be next to each other, just so long as the total is 90 degrees. Examples: ... 5° and 85° are complementary angles.

Supplementary Angles:-

Two Angles are Supplementary when they add up to 180 degrees. They don't have to be next to each other, just so long as the total is 180 degrees. Examples: • 60° and 120° are supplementary angles.

Adjacent Angles :-

Two angles are Adjacent when they have a common side and a common vertex (corner point) and don't overlap. Angle ABC is adjacent to angle CBD. Because: they have a common side (line CB).

Linear Pair :-

A linear pair of angles is formed when two lines intersect. Two angles are said to be linear if they are adjacent angles formed by two intersecting lines. The measure of a straight angle is 180 degrees, so a linear pair of angles must add up to 180 degrees.

Transversal lines :-

In geometry, a transversal is a line that passes through two lines in the same plane at two distinct points. Transversals play a role in establishing whether two other lines in the Euclidean plane are parallel.

Corresponding angles :-

Any pair of angles each of which is on the same side of one of two lines cut by a transversal and on the same side of the transversal.

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • Mr. Collier's third-period class has 27 students. He needs to create a team of 12 students for a school competition. How many po
    11·1 answer
  • Write the ordered pair that represents yz. Then find the magnitude of yz . y=14,-23 z=23,-14
    15·2 answers
  • jewels has $6.75 to ride the ferry around Connecticut. It will cost her $0.45 every time she rides. Identify the dependent varia
    5·1 answer
  • What is the slope of the line represented by the equation y = -1/2x + 1/4
    15·1 answer
  • - A plane travelled 1800 km &amp; took 3 hrs to get there. It took
    14·1 answer
  • Simplify 2(5x -y)-3(3x-y)
    13·1 answer
  • Make the number 18 using six "1"s.
    6·1 answer
  • The area of a rectangle is x^2-3x-54 find the perimeter
    10·1 answer
  • PLASSS HELP<br><br> a. 9<br> b. 81<br> c. 3<br> d. 24
    11·1 answer
  • Simplify (-8.5)X(-5)( -2).
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!