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
scoundrel [369]
1 year ago
12

prove that the fast squaring trick for two-digit numbers ending in 5 works. the trick: if you have a 2-digit number that ends in

5, to square it take its first digit x, multiply it by (x 1) and write 25 at the end. for example, to square 35, compute 3∙4
Mathematics
1 answer:
blondinia [14]1 year ago
5 0

The procedure to squaring a two digit number is by multiplying the first number by a integer greater than the number and putting 25 beside it.

Finding the Square of a Value is a simple method. Multiply the specified integer by itself to determine the square number. The square term is always represented as an integer multiplied by two. For example, the square of 5 is 25 multiplied by 5, giving 5×5 = 5² = 25.

What if we want to calculate the square root of a two-digit number . It might be a little challenging. Ordinary multiplication cannot be used to compute the square of two-digit values. This article will show us how to calculate the precise square of such integers.

Simply multiply a single-digit number by itself to find its square. Furthermore, by memorizing the tables from 1 to 10.

We taught about two triangles and how to find the point of any base of a triangle given the other two sides using Pythagoras' theorem.

A right triangle has three sides: the hypotenuse, perpendicular, and base. Pythagoras' theorem states that

Hypotenuse² = Perpendicular² + Base².

to learn more about number visit:

brainly.com/question/17429689

#SPJ4

You might be interested in
A − 7 = 3 (b+2) pls answer soon
Alexeev081 [22]
I believe the answer is....

For solving for a

a-7= 3(b+2) ———> distribute 3(b+2)
a-7= 3b+6 ———-> add 7 on both sides

a-7= 3b+6
a+7= 3b +7 ———-> the 7’s cancel out so you’re left with....

a = 3b + 13 (That’s your answer)

Hope that helped :3
8 0
3 years ago
Hi can anyone do this for me please do it on a piece of paper
Vsevolod [243]

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

We don't know the drivers' names or when or where they started. We have made the assumption that the second equation pertains to Kylie.

Each line is plotted with the appropriate slope and y-intercept. The slope is the coefficient of x, and represents the "rise" for each unit of "run" to the right.

8 0
3 years ago
Sara makes and sells bracelets. She bought material for $28.50 and used it all to make 15 bracelets. Sara used the equation to d
Norma-Jean [14]

Answer:

Sara should sell each bracelet at <em>$8.50</em> to make a profit of $99.

Step-by-step explanation:

We are given the following:

Total cost = $28.50

Total bracelets to be made = 15

Total profit to be made = $99

Let x be the price at which Sara sells each bracelet to make a profit of $99.

\text{Total sales done = Number of bracelets sold }\times \text{ Sales price of each bracelet}\\

\Rightarrow 15 \times x    ...... (1)

Also,

\text{Total sales price = Total Cost}+ \text{Total Profit} \\

\Rightarrow \$28.50 + \$99 ....... (2)

Equating (1) and (2):

\Rightarrow  28.50 + 99 = 15x\\\Rightarrow x = \dfrac{127.5}{15}\\\Rightarrow x = $8.50

Sara should <em>sell each bracelet at $8.50</em> to make a profit of $99.

3 0
4 years ago
Read 2 more answers
The table shows the cost of renting a sound system for a concert. Isabel rents a sound system at 1 p.m. and plans to return it b
leonid [27]

Answer:

56

Step-by-step explanation:

its 56 b

3 0
3 years ago
Help me please so I can turn this in
Ber [7]

Answer:

10y-12

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • An isosceles trapezoid has a perimeter of 33 feet. Its shorter base measures 5 feet and its longer base measures 6 feet. The two
    8·1 answer
  • Cecile packages snack mix at a health food store.
    10·2 answers
  • Hi! can you please help me? please show your answer!
    8·1 answer
  • According to the Fundamental Theorem of Algebra, which polynomial function has exactly 11 roots?
    9·1 answer
  • Given the functions f(n) = 11 and g(n) = (3/4)n _ 1, combine them to create a geometric sequence, an, and solve for the 9th term
    5·1 answer
  • A floor lamp costs $21 less than a $99 painting. How much does the floor lamp cost?
    12·2 answers
  • Can someone please help me?? I'm begging...
    14·1 answer
  • Please help Meeeeeeeeeeee
    11·2 answers
  • Whats thr answer to this? 3( -2d + 1) (pre alg)
    5·1 answer
  • 3. An architectural blueprint is drawn to a scale of 1:20.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!