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
AlexFokin [52]
3 years ago
5

00:00

Mathematics
1 answer:
Bogdan [553]3 years ago
8 0

Answer:

1. 4.65+3.23 = 7.88 yes

2. 3.23 + 6.42= 9.65 not 9.45 no

3. 2.85 + 3.23 = 6.08 yes

4. 3.23 + 8.49 = 11.72 not 10.72 no

You might be interested in
64 as a mixed number
Kaylis [27]
I'm perdy sure it's 64/1 but yk it could be something else XD :D good luck!

6 0
3 years ago
Show that ifAB=IandAC=I, then it follows that B=C. Explain how this proves thatthe inverse of the matrix A is unique.
Anna007 [38]

Answer with Step-by-step explanation:

Suppose that a matrix has two inverses B and C

It is given that AB=I and AC=I

We have to prove that Inverse of matrix is unique

It means B=C

We know that

B=BI where I is identity matrix of any order in which number of rows is equal to number of columns of matrix B.

B=B(AC)

B=(BA)C

Using associative property of matrix

A (BC)=(AB)C

B=IC

Using BA=I

We know that C=IC

Therefore, B=C

Hence, Matrix A has unique inverse .

6 0
3 years ago
Layla has $2 worth of dimes and quarters. She has 6 more dimes than quarters. By
fredd [130]

Answer:

Layla has 4 quarters and 10 dimes

Step-by-step explanation:

A quarter each is 25 cents. And a dime each is 10 cents. counts from 10 10 times and then add 25 4 times and you get 200 which is 2 dollars. Example: 10 20 30 40 50 60 70 80 90 100 with 10 dimes alone that's a dollar 4 quarters equal another dollar so both of those equal 2 dollars. Layla had 4 dimes and 4 quarters when she added 6 more dimes it all equaled 2 dollars. Hopefully this makes sense.

3 0
3 years ago
How would I solve this Rational Equation? <br><br>Solve for all values of x.
Nesterboy [21]

9514 1404 393

Answer:

  x = 4

Step-by-step explanation:

I like to put these in the form f(x) = 0. We can do that by subtracting the right side. Common factors can be cancelled from numerator and denominator, provided they are not zero.

  \dfrac{7}{x+3}+\dfrac{3}{x-3}-\dfrac{x}{x-3}=0\\\\ \dfrac{7(x-3)+(x+3)(3-x)}{(x+3)(x-3)}=0\\\\\dfrac{(x-3)(4-x)}{(x-3)(x+3)}=0\\\\ \dfrac{4-x}{x+3}=0\qquad x\ne3\\\\x=4 \qquad\text{equate the numerator to zero, add $x$}

_____

If you leave the numerator as (x-3)(4-x), then there are two values of x that make it zero. Because x=3 makes the equation "undefined", it cannot be considered to be a solution.

4 0
3 years ago
PLEASE PLEASE HELP I DON'T UNDERSTAND AND IT'S DUE TMRW
zmey [24]

The answer to the above math expression is . See the computation below.

<h3>What is the calculation justifying the above?</h3>

First we solve for the numerator. The numerator is:

7√2 - 2√16

Where:

7√2 = 9.89949493661; and

2√16 = 8

Hence,

7√2 - 2√16 = 1.89949493661

Next we solve for the denominator. This is given as:

3√8=8.48528137424

Hence,

(7√2 - 2√16)/3√8 = 1.89949493661/8.48528137424

= 0.22385762508

$\approx$ 0.224

Learn more about math expressions:

brainly.com/question/4344214

#SPJ1

5 0
2 years ago
Other questions:
  • Use remainder theorem to find the remainder when the function f(x) = x^3 + 5x^2 - 7x is divided by (x+4)
    10·2 answers
  • Anyone Great at math? Here you go!
    9·1 answer
  • -2- 5/4x =13 can someone pls help me!!!
    13·1 answer
  • Experimental probability is the same as empirical probability and relative frequency.
    9·1 answer
  • Jessica decided to purchase a vehicle whose MSRP is listed at $20,450. The
    8·1 answer
  • Evaluate the expression 6x+8<br> when x=2<br> .
    9·1 answer
  • Triangle base is 2.4 what is the height
    8·1 answer
  • Hannah is saving money for a car. She earns $160 each week working part time after school and on the weekends at Papa's Pizza. H
    10·2 answers
  • If Gary bikes at an average speed of 6 miles per hour, how many hours will it take him to bike 84 miles?
    15·2 answers
  • Solve for x : <br><br><img src="https://tex.z-dn.net/?f=%5Cqquad%20%5Crightarrow%5Cbf%204x%20%2B%209x%20%2B%202x%20%3D%2030" id=
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!