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
natka813 [3]
2 years ago
14

When using re-grouping to solve 21 x 43, what are the four products that would be calculated and then added?

Mathematics
2 answers:
Butoxors [25]2 years ago
7 0
The third one because 21 times 43 is 903 and 800 + 40 + 60 + 3 = 903
pshichka [43]2 years ago
3 0

Answer:

c

Step-by-step explanation:

21×43

=(20+1)×(40+3)

=800+40+60+3

You might be interested in
3 to the 2 power times 5 to the 3 times 8 divided by 3 times 5 to the 3 times 8
IceJOKER [234]

Answer:

42

Step-by-step explanation:

First condense all the numbers with exponents:

3² x 5³x 8 divided by 3 x 5³ x 8

27 x 125 x 8  divided by 3 x 27 x 8

Then multiply 27 , 125 ,and 8

27 x 125 x 8 =27000

Then multiply 3, 27 ,and 8

3 x 27 x 8 = 648

Then divide 27000 by 648

27000 / 648 = 41.6666666667

Which rounds to about: 42

3 0
3 years ago
Calculate the area of the square shown below (HARD)
sergey [27]
Check the picture below.

recall that in a square, all sides are equal, so if we make b = a, then we get that for one side, also recall that the area of a rectangle is length*width, so in this case,

\bf \stackrel{\textit{area of the square}}{\stackrel{length}{5\sqrt{2}}\cdot \stackrel{width}{5\sqrt{2}}}\implies 25(\sqrt{2})^2\implies 25\cdot 2\implies 50

7 0
2 years ago
The answer is: x is choose your answer
katrin2010 [14]

Answer:

All real numbers

Let's find the critical points of the inequality.

−4x+7=17

−4x+7+−7=17+−7(Add -7 to both sides)

−4x=10

−4x−1=10−1

(Divide both sides by -1)

4x=−10

4x=−10(Solve Exponent)

log(4x)=log(−10)(Take log of both sides)

x*(log(4))=log(−10)

x=log(−10)log(4)

x=NaN

3 0
3 years ago
Please help !!!!!!!!!!! Find the value of x
viktelen [127]

Answer:

10

Step-by-step explanation:

7 0
2 years ago
Jill has been watching the squirrels that live in her neighborhood. The number of squirrels changes each week. n f(n). 1 8. 2 12
qaws [65]

Answer: D) f(n)=8(1.5)^{n-1}


Step-by-step explanation:

From the given table we can see that this is not representing a linear function as the rate of change is not constant.

So it can be exponential growth function A(b)^{n-1},  where A is the initial amount , b is the multiplicative rate of growth and n is the time period in weeks.

Now here at n=1 , f(n)=8

Therefore, A=8

Now, for n=2

f(2)=8(b)^{2-1}\\\Rightarrow12=8b\\\Rightarrow\ b=\frac{12}{8}\\\Rightarrow\ b=1.5

By substitute the values of A and b in the above equation, we get the equation f(n)=8(1.5)^{n-1}

Therefore, the function best shows the relationship between n and f(n) is

f(n)=8(1.5)^{n-1}, where n is the number of weeks.

7 0
2 years ago
Read 2 more answers
Other questions:
  • What is the percent of increase of 42 is increased to 72
    9·2 answers
  • (5m+100) (2m+10) what’s the value of m
    8·1 answer
  • Twice the diffrence of a number and 9 is equal to three times the sum of the number and 5. Find the number
    11·1 answer
  • Estimate the square root of the imperfect square of 18.
    7·1 answer
  • These are the answer choices 3x+3, 3x^3+18, 3x+9, and 3x+5
    7·1 answer
  • the price of a car was reduced to 25% off the car is now £14.625 work out what the car was before it was reduced
    8·1 answer
  • Write the expression as a product of two factors. <br><br><br><br> (1+7) + (1+7) + (1+7
    6·1 answer
  • Which expression is equivalent to 32 + 16?
    7·2 answers
  • How do i anwser this question plz help thanks :)
    12·2 answers
  • Assessment started: undefined. Item 1 What is the mean of this data set? {6, 11, 5, 2, 7} Enter your answer as a decimal in the
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!