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
blondinia [14]
3 years ago
14

Perform the following operations and write the answers in radical form. Part A:√7+√3+√98−√18 Part B:3√5−3√11+2√121−3√90

Mathematics
1 answer:
Sveta_85 [38]3 years ago
8 0

Answer:

  1. \sqrt{7}+\sqrt{3}+4\sqrt{2}
  2. 3\sqrt{5}-3\sqrt{11}+22-9\sqrt{10}

Step-by-step explanation:

Part A ;

\sqrt{7} +\sqrt{3} +\sqrt{98} -\sqrt{18} \\\\\sqrt{98}=7\sqrt{2}\\\sqrt{18}=3\sqrt{2}\\\\=\sqrt{7}+\sqrt{3}+7\sqrt{2}-3\sqrt{2}\\\\\mathrm{Add\:similar\:elements:}\:7\sqrt{2}-3\sqrt{2}=4\sqrt{2}\\\\=\sqrt{7}+\sqrt{3}+4\sqrt{2}

Part B ;

3\sqrt{5}  - 3\sqrt{11} + 2\sqrt{121} -3\sqrt{90} \\\\2\sqrt{121}=22\\3\sqrt{90}=9\sqrt{10}\\\\=3\sqrt{5}-3\sqrt{11}+22-9\sqrt{10}

You might be interested in
Choose the best definition for the following phrase: combining like terms (1 point)
Maksim231197 [3]

combining like terms in a polynomial is adding or subtracting together terms that have the same degree in the exponents.

example. 3x^3 + 5x^6 + 2x^3 +7x + 9x^6

= 7x + 5x^3 + 14x^6

4 0
3 years ago
A circle with radius 4 inches is inscribed in an equilateral triangle. Find the area of the triangle.
LUCKY_DIMON [66]

The inscribed circle has its center at the point of intersection of the angle bisectors, which also happen to be the medians. Hence the altitude of the triangle is 3 times the radius, or 12 inches.

The side length of this triangle is 2/√3 times the altitude, so the area is

... Area = (1/2)·b·h = (1/2)·(24/√3 in)·(12 in)

... Area = 48√3 in² ≈ 83.1384 in²

7 0
3 years ago
What is the length of the segment with endpoints of (3,2) and (-3,-6)?
Anon25 [30]
10 square units.
.........................
7 0
3 years ago
What are the missing blanks?
Ksenya-84 [330]

Answer:

1 - 3 (1 quarter is 25 and a dime is 10, so, 3.)

4 - 10

6 - 15

14 - 33

Step-by-step explanation:

7 0
3 years ago
Find the value of log , 462 to four decimal places.
harina [27]

Answer:

−8.85174904 The first answer

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Find the value of x? please help​
    7·2 answers
  • The diameter of a circle measures 10 yd. What is the circumference of the circle?
    11·1 answer
  • Plzzzzz helpppp <br> If u can help me plz do
    12·2 answers
  • Does someone know this ??
    11·2 answers
  • Find the gradient &amp; y-intercept for each equation of a line.
    11·1 answer
  • Find a, d, e on a triangle.
    12·2 answers
  • When solving an equation, Francesca's first step is shown below. Which property
    7·2 answers
  • ONLY ANSWER CORRECTLY
    7·1 answer
  • Write a recursive formula for the sequence 2,-4,8,- 16,<br> PLEASE HELP ASAP!!!!!!!!
    8·1 answer
  • Please help i been asking since yesterday
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!