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
RSB [31]
3 years ago
12

How do I simplify the square root: 7 times the square root of 81

Mathematics
1 answer:
DENIUS [597]3 years ago
7 0
7\cdot\sqrt{81}=7\cdot\sqrt{9\cdot9}=7\cdot9=\boxed{63}
You might be interested in
Help Please!!!!!!!!!!!
Ira Lisetskai [31]
What is the question?
8 0
3 years ago
I need help... I honestly don’t know.
Serhud [2]

Answer:

∡ABC=55°

Step-by-step explanation:

<u>Step 1: Identify all angles</u>

∠A=(x+45)°

∠B=(6x+5)°

∠C=(3x)°

∠ABC=(180-∠B)°=(180-(6x+5))°

<u>Step 2: Use the Triangle Angle Sum Theorem</u>

∠A+∠ABC+∠C=180°

(x+45)+(180-(6x+5))+(3x)=180

x+45+180-6x-5+3x=180

-2x+45+180-5=180

-2x+45-5=0

-2x+40=0

-2x=-40

x=20

<u>Step 3: Plug in x=20 for ∠ABC</u>

∠ABC=(180-(6x+5))°

(180-6(20)-5)°

(180-120-5)°

(60-5)°

55°

So ∡ABC=55°

8 0
3 years ago
Read 2 more answers
The cloth shop has announced a reduction in price by 25%. How many shirts priced at Rs 28 should buy to avail a total reduction
Drupady [299]

Answer:

At least 6 shirts should be brought to avail a total reduction of Rs 40.

Step-by-step explanation:

The marked price of each shirt = Rs 28

Discount offered = 25%

So, 25% of marked price  28 = \frac{25}{100}  \times 28 = 7

⇒Reduction on each shirt is Rs 7

Now, total amount reduction needed = Rs 40

So, number of shirts purchased = \frac{\textrm{Total reduction needed}}{\textrm{Reduction on each shirt}}

= 40  Rs /7  Rs  =  5. 71  ≈  6

So, at least 6 shirts should be brought to avail a total reduction of Rs 40.

5 0
3 years ago
Starting at sea level, a submarine descended at a constant rate to a depth of − 4/5 mile relative to sea level in 3 minutes.
Jobisdone [24]
If it were 4 then it would be 1 1/3 for one minute
5 0
3 years ago
Read 2 more answers
Can someone tell me the answer step by step about the surface area please please really I need help
andreev551 [17]
Surface are has a formula which is
SA=L*w+W*h+L*h
8 0
3 years ago
Other questions:
  • What type of transformation takes the graph of f(x) = |x| to the graph of g(x) = 2.5 |x| ?
    7·1 answer
  • 2.4 puzzle time how can you share five apples with seven friends
    15·1 answer
  • Mary wants to find this product. 58 x 20 How can Mary find the product? A. 0 +16 + 100 B. 0 + 160 + 1000 . C. 58 + 16 + 100 D. 5
    9·1 answer
  • Simplify the expression.<br> -3(-8-2v+2v) (easy 10 points!)
    9·2 answers
  • The surface area of three dimonsensed face is the sum of all the the surface areas of each of the face given below are the nets
    10·1 answer
  • SUPER EASY FOR POINTS!!!!solve: x-3=3x-2
    12·1 answer
  • Playland Park charges $25 admission plus $2 per ride. Funland Park charges $35 admission plus $1 per ride. For what number of ri
    7·1 answer
  • PLEASE HELP ME IM MARKING ANSWER BRAINLIEST RIGHT NOW!!Mr. Youngbear buys T-shirts in boxes
    8·1 answer
  • Plss help I need it ASAP<br><br>nonsense=reported ​
    7·1 answer
  • Help please this is complicated
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!