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
Katyanochek1 [597]
4 years ago
11

Can someone check my answers?

Mathematics
2 answers:
Ghella [55]4 years ago
6 0

Answer:

1. D

2. B

3. D

4. A

5. C

6. A

7. D

8. B

9. B

10. C

Ilia_Sergeevich [38]4 years ago
4 0
1. sqrt5 + 6sqrt5 = (1+6)sqrt5 = 7sqrt5 (answer is D) 
2. 4sqrt2 - 7sqrt2 = (4-7)sqrt5 = -3sqrt2 (answer is B)
 3. 3sqrt7 - sqrt63 = 3sqrt7 - sqrt7 * sqrt9 = 3sqrt7 - 3sqrt7 = 0 (answer is D)
 4. -6sqrt10 + 5sqrt90 = -6sqrt10 + 5*(sqrt10 * sqrt9) = -6sqrt10 + 5*(3sqrt10)
= -6sqrt10 + 15sqrt10 = 9sqrt10 (answer is A)
 5. sqrt6*(sqrt 2 + sqrt 3) = sqrt12 + sqrt18 = 2sqrt3 + 3sqrt2 (answer is D)
You might be interested in
The graph of a linear system is shown.
Cloud [144]

Answer:

(- 3, 6 )

Step-by-step explanation:

The solution is at the point of intersection of the 2 lines

The lines intersect at (- 3, 6 ) ← solution

8 0
3 years ago
Convert the binary number 10110011 into a decimal number.​
Lady bird [3.3K]
179 is the decimal equivalent of the binary number 10110011.
6 0
3 years ago
Read 2 more answers
Convert the following from decimals to percents
Harlamova29_29 [7]
All you do is multiply the decimal by 100.

A. 132%

B. 1%

C. 12%

D. 28%
3 0
3 years ago
Solve for x <br> 5(x-10)=30-15x
timofeeve [1]

Answer:

solution :

    x = 4

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    5*(x-10)-(30-15*x)=0

Step by step solution :

Step  1  :

Equation at the end of step  1  :

 5 • (x - 10) -  (30 - 15x)  = 0

Step  2  :

Step  3  :

Pulling out like terms :

3.1     Pull out like factors :

  20x - 80  =   20 • (x - 4)

Equation at the end of step  3  :

 20 • (x - 4)  = 0

Step  4  :

Equations which are never true :

4.1      Solve :    20   =  0

Step-by-step explanation:

4 0
3 years ago
Name a dance step and name TWO muscles used during the dance step:
TiliK225 [7]
I don’t know if this would be considered a dance step but an aerial uses your quad because you have to push off your front leg and your hamstring because you have to drive your back leg
6 0
3 years ago
Other questions:
  • An office girl buys 12cent and 8cent stamps. It she spends
    8·1 answer
  • Write an equation of a line that goes through the point (-9, 3), and is perpendicular to the line 3x + y = 5
    11·1 answer
  • Define “The subject of a formula”
    6·1 answer
  • 12x^3+2x^2-30x-5 factoring
    5·2 answers
  • 5. The rate of change in revenue for the Priceline Group from 2004 to 2013 can be modeled
    6·1 answer
  • Write the following mathematical expressions in simplest form 3.5 m + 2 (0.6 M - 5) + 4​
    5·1 answer
  • What is 713.49 written in standard form?
    14·1 answer
  • Help!!! Consider function f
    10·1 answer
  • Segment TQ is 26 units long. What is the length of<br> QV?
    5·2 answers
  • 4. A circle has a radius of 2 cm. a. Find the exact area of the circular region.b Find the approximate area using 3.14 to approx
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!