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
Travka [436]
2 years ago
8

Simplify the expression 7√7 - 2√28

Mathematics
2 answers:
Nadusha1986 [10]2 years ago
8 0
<span>7√7 - 2√28

2 sqrt(28) = 4 * sqrt(7)

7*sqrt(7) - 4*sqrt(7) =

3 * sqrt(7)

</span>
qwelly [4]2 years ago
8 0
7squareroot7-2squareroot28
=7squareroot7-2×2squareroot7
=7squareroot7-4squareroot7
=3squareroot7
=3×2.64
=7.92
You might be interested in
Find the distance between the two points (2,5) and (6,-1)
Reptile [31]

Answer:

= \sqrt{52} units

Step-by-step explanation:

x₁ = 2 ; y₁ = 5

x₂ = 6 ; y₂ = -1

D = \sqrt{(x₂ - x₁)² + (y₂ - y₁)²}

   =\sqrt{(6 - 2)² + (-1 -5)²}

   =\sqrt{4² + (-6)²}

   = \sqrt{16 + 36}

D = \sqrt{52} units

7 0
3 years ago
Read 2 more answers
Martin drew a triangle. Its sides are 3 cm, 4 cm, and 5 cm. What type of triangle is Martin drawing?
kolbaska11 [484]

Answer:

A scalene triangle .......

4 0
2 years ago
10
timama [110]

Answer:

25π units^2

Step-by-step explanation:

The shape is a quarter circle with radius 10 units.

area of circle = πr^2

area of a quarter circle = (1/4)π(10 units)^2

area = 25π units^2

5 0
3 years ago
When principal = Rs x, Time = y years and Rate = z% per year, calculate the simple interest.
Marianna [84]

Answer:

X×Y×Z%/100

Step-by-step explanation:

using formula

si=p×t×r%/100

3 0
2 years ago
Consider each equation. is it the equation of the line that is parallel or perpendicular to y=3x+2? Select yes or no for a-c
Mkey [24]

Answer:

see explanation

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = 3x + 2 is in this form with slope m = 3

• Parallel lines have equal slope

• The slopes of perpendicular lines are negative reciprocals of each other

A

y = - \frac{1}{3} x - 8 has slope m = - \frac{1}{3}

3 and - \frac{1}{3} are negative reciprocals

This line is perpendicular to y = 3x + 2

B

y = 3x - 10 has slope m = 3

This line is parallel to y = 3x + 2

C

y = 2x + 4 has slope m = 2

This line is neither parallel nor perpendicular to y = 3x + 2


5 0
3 years ago
Other questions:
  • Four minus 2X equals 16
    10·2 answers
  • 1-2*6&lt;13<br> Is this correct
    12·1 answer
  • At a party, everyone shook hands with everybody else. There were 66 handshakes in total. How many people were at the party?
    7·2 answers
  • M∠QRS=59° and m∠TUV=31° . Which statement is true about ∠QRS and​ ∠TUV ​?
    12·2 answers
  • Solve for x in the equation shown below
    5·1 answer
  • Find the constant of proportionality for the table of values
    11·1 answer
  • What is an absolute value? What does it do? When would we need to use an absolute value
    15·2 answers
  • How can we represent three-dimensional figures in only two dimensions?
    13·2 answers
  • Amelia pays $24 to rent a boat at the lake for up to six hours she constructs the inequality and number line below to represent
    12·1 answer
  • Put the following equation of a line into slope-intercept form, simplifying all fractions. 5x+6y=42
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!