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
Vera_Pavlovna [14]
2 years ago
11

Which equation can be used to find 42x51?

Mathematics
1 answer:
kirza4 [7]2 years ago
5 0

Answer:

(40 x 50) + (2 x 1) = 2,000 + 2

Step-by-step explanation:

You might be interested in
Simplify the expression shown below: (a^3b^12c^2)^2(a^5c^2)^3(b^5c^4)^0
NemiM [27]
= a^21b^24c^10 
use the product rules for each set of () then multiply them together. when multiplying variables with exponents you just add them together like for a^3 * a^5 = a^8.     (a^3 b^12 c^2)^2 = (a^6 b^24 c^4)
4 0
3 years ago
add the term that makes the given expression into a perfect square. write the result as the square of a bracketed expression c s
Molodets [167]
<h2>Perfect Squares</h2>

Perfect square formula/rules:

  • a^2+2ab+b^2=(a+b)^2
  • a^2-2ab+b^2=(a-b)^2

Trinomials are often organized like ax^2+bx+c.

The <em>b</em> value in this case is <em>c</em>, and it will always equal the square of half of the <em>b</em> value.

  • Perfect square trinomial: ax^2+bx+(\dfrac{b}{2})^2
  • or ax^2-bx+(\dfrac{b}{2})^2

<h2>Solving the Question</h2>

We're given:

  • c^2-4c

In a trinomial, we're given the ax^2 and bx values. <em>a</em> in this case is 1 and <em>b</em> in this case is 4. To find the third value by dividing 4 by 2 and squaring the quotient:

  • 4 ÷ 2 = 2
  • 2² = 4

Therefore, the term that we can add is + 4.

c^2-4c+4

To write this as the square of a bracketed expression, we can follow the rule a^2-2ab+b^2=(a-b)^2:

(c-2)^2

<h2>Answer</h2>

c^2-4c+4

(c-2)^2

4 0
1 year ago
PLEASE HELP DUE TODAY !
igor_vitrenko [27]

Answer:

let x be chips and y be sodas

8x + 4y = 5 ---> for the first hint

4x + 8y = 7------> second hint

0.25 cents is how much chips costs

and 0.75 cents is how much sodas costs

5 0
3 years ago
Read 2 more answers
What’s the value of X ???!!!!
Alexus [3.1K]

Answer:

Step-by-step explanation:

So since triangle jkl and wyz are similar angles j and w must equal each other, angles k and y must equal each other, and angles l and z are equal. So to find x just set 4x-13 equal to 71

4x-13=71

add 13 to both sides to cancel the -13 from the left

4x=84

and divide both sides by 4 to cancel the 4 on the left

x=21

7 0
3 years ago
A student writes an incorrect step while checking if the sum of the measures of the two remote interior angles of triangle ABC b
rosijanka [135]

Answer:

4.) Step 2; it should be m∠o + m∠p = 180 degrees (supplementary angles)

Step-by-step explanation:

o and p are supplementary angles, and therefore add up to 180 degrees.

5 0
2 years ago
Other questions:
  • If an athletic field is a rectangle it is 120 yards x 6 yards with a semi circle at each of the ants a running track 15 yards wh
    8·1 answer
  • A locker combination has three nonzero digits, and digits cannot be repeated. If the first two digits are even, what is the prob
    7·1 answer
  • What is the successor of the number 2012
    9·1 answer
  • two factors are multiplied and their product is 34.44 one factor is a whole number.how many decimal places are in the other fact
    13·2 answers
  • A leaking faucet drips into a bucket . the faucet drips at a constant rate the level of water in the bucket rises 8 inches in 12
    12·1 answer
  • A radio station sells buttons and bumper stickers at a local fair the buttons cost $2.95 each and the bumper stickers cost three
    13·2 answers
  • Karly buys a model car for $64. Then she spends 2 times as much on supplies to build the model car. How much does Karly spend al
    7·2 answers
  • Solve the equation<br> 2x-1/4<br> +<br> X/3<br> = 2
    5·2 answers
  • Which of the following is an arithmetic sequence?
    5·1 answer
  • What is pie time 23.9817
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!