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
hjlf
2 years ago
9

Which choice is equivalent to expresision below?

Mathematics
1 answer:
DIA [1.3K]2 years ago
5 0

We can simplfiy to be -\sqrt{100}

\sqrt{-1} * \sqrt{100}.

We know that \sqrt{100} is 10 and -1 is i, so the answer is 10i, or D.


You might be interested in
wanting some extra help with factoring while knowing what method it would be like gcf or grouping etc
Ksju [112]

d) You have a <u>difference of squares</u>:

49y² - 9 = (7y)² - 3²

Recall the identity,

a² - b² = (a - b) (a + b)

So,

49y² - 9 = (7y - 3) (7y + 3)

e) Pull out the common factor 3 from each term:

3x² - 3x - 90 = 3 (x² - x - 30)

Now use the <u>sum-product method</u>. Notice that we can write 30 = 5 • 6, and 5 - 6 = 1, so

3x² - 3x - 90 = 3 (x + 5) (x - 6)

f) Same as in (e), use the <u>sum-product method</u>. Notice that 42 = 7 • 6, and -7 - 6 = -13, so

x² - 13x + 42 = (x - 7) (x - 6)

8 0
2 years ago
Read 2 more answers
Which of the following expressions have equivalent solutions?
MakcuM [25]
1. -3.8
2. -242/67
3. -11368
Photomath is a good app to help give u answers for math. Hope this helps u
5 0
3 years ago
Read 2 more answers
The question is in the photo
vovikov84 [41]

\displaystyle\bf 3x+7\geq 52 \ ; \ x>15 \\\\3x\geq 45\\\\x\geq 15 \ \ \ and  \ \ \ x>15 here is a contradiction because in one inequality x can be equal to 15 ; and in the other it cannot

6 0
3 years ago
Where t is the number of years since 1997 and y is the number of camera phones shipped(in millions). How many camera phones were
Furkat [3]
Not enough information if that is an option
3 0
3 years ago
Please help asap !!!!!!
alukav5142 [94]

Answer:

A.

Step-by-step explanation:

\sqrt{10} *\sqrt{8}\\   \sqrt{10}*\sqrt{2*4}\\\sqrt{10}*2\sqrt{2}\\2\sqrt{2*10}\\2\sqrt{20}\\ 2\sqrt{4*5} \\4\sqrt{5}

4 0
3 years ago
Other questions:
  • The formula for the perimeter of a rectangle can be written as P= 2(l+w). Solve the formula for the length l.
    15·1 answer
  • HELP WILL MARK BRAINLIEST
    6·2 answers
  • What is the volume of a cone that has a height of 7 mm and a radius of 3 mm? Use 3.14 to approximate pi and round the answer to
    7·1 answer
  • Which statements about this system of equations are true? CHECK ALL THAT APPLY
    12·2 answers
  • Help pls! It’s due soon
    14·2 answers
  • Plz help right now illl give brainlist 5.0 and say thanks
    15·2 answers
  • Which of the polygons are similar to polygon a ​
    13·1 answer
  • Find the answer pleaseeee...<br><br>-15/9 + 9/4 = ? <br><br>Please find what the question mark is​
    13·1 answer
  • Timed please help :))
    14·1 answer
  • 44% of 231 is what?<br> this is percentage btw
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!