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
Gnoma [55]
3 years ago
7

(√3-√5)(√5+√3)/7-2√5

Mathematics
1 answer:
strojnjashka [21]3 years ago
7 0

Answer:

= - 14 - 4√5/ 29

Step-by-step explanation:

(√3-√5)(√5+√3)/7-2√5

= √15 + 3 - 5 - √15/7 - 2√5

= - 2/7 - 2√5

= - 2/7 - 2√5 x 7 + 2√5/7 + 2√5

= - 14 - 4√5/49 + 14√5 - 14√5 - 20

= - 14 - 4√5/ 29

You might be interested in
Write the sum in standard form <br><br> B) f(x)-h(x)
VLD [36.1K]

Answer:

Step-by-step explanation:

f(x) -h(x) = x³ + 2x² -7x - 8 - [4x² - x - 15 ]

             = x³ + 2x² - 7x - 8 - 4x² + x + 15

              = x³ + 2x² - 4x² - 7x + x - 8 + 15

              = x³ - 2x² - 6x + 7

8 0
2 years ago
A triangle has side lengths of 11 cm and 7 cm. Which could be the value of the third side, 19 cm or 17 cm ?
9966 [12]

Answer:

By the triangle side length theorem, the sum of the two shorter sides has to be equal to or larger than the third side. Thus, we can write the following inequation.

a

+

b

≥

c

, where a and b are the shorter sides and c the longest.

11, 9 and 15 satisfies this inequality while 11, 9 and 20 doesn't.

Justification:

The reason for this rule is simple; it's because if the longest side is longer than the sum of the two shorter sides, this means that the shorter sides aren't long enough to connect with the longest side, thus rendering the shape a collection of lines and disqualifying the possibility of having a triangle, which was our objective.

Practice exercises:

Which of the following triangles is possible?

a) 4,6 and 14

b) 5,11 and 16

c) 1,3,6

D). 12,19 and 26

Find the smallest possible value of a to make the following an actual triangle :

a

,

14

,

25

Hopefully this helps:

Step-by-step explanation:

8 0
3 years ago
Graph the line with slope −2 passing through the point , 5−1.
Allisa [31]

<u>Answer:</u>

<u>y+1=-2(x-5)</u> - Point Slope Form

<u>y=-2x+9</u> - Slope Intercept Form

<u></u>

Step-by-step explanation:

We will be using point-slope formula, as attached in a picture below.

1) Plug in the slope -2 as "m" in point slope form, along with the two points, (5, -1)

<u>y+1=-2(x-5)</u>

2) Next, if you want to put the line into slope-intercept form, you will need to distribute -2 to x and -5:

y+1=-2x+10

3) Now, subtract 1 from both sides:

<u>y=-2x+9</u>

6 0
3 years ago
Simplify 12 to the 16th power over 12 to the 4th power
dexar [7]

\dfrac{12^{16}}{12^4} = 12^{16 - 4} = 12^{12}

6 0
3 years ago
HELP!!
gulaghasi [49]

Answer:

d

Step-by-step explanation:

i think

4 0
3 years ago
Other questions:
  • The 24 students in ms. lees class each collected an average of 18 cans for recycling. then 21 students in mr. galvez's class eac
    13·1 answer
  • Larson's beehive farm usually produces 85 pounds of honey per year. About how many pounds of honey will 10 to the 3rd power hive
    12·1 answer
  • Help me with this math question
    7·2 answers
  • 1.4 has 2 significant digits as a result of which one?
    7·2 answers
  • Taci makes birthday cards using sheet of paper for each card. How many cards can she make using 12 sheets of paper?
    6·2 answers
  • A. Write the equivalent fraction for 66% <br>b. Write the equivalent decimal for 89%.​
    5·1 answer
  • Use the information to answer the following question.
    13·2 answers
  • Solve for this equation, will mark brainliest for correct answers
    5·2 answers
  • Solve the equation by finding the common denominator. two and four sevenths plus seven and three ninths equals blank
    14·1 answer
  • PLEASE HELP! THiS IS DUE!!!!!!!! I Will MAKE BRAINlST
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!