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
Goryan [66]
3 years ago
11

The value of X is:A)27B)7C)5D)√21E)√27​

Mathematics
2 answers:
saul85 [17]3 years ago
6 0
The answer is E

To solve this you need to use the Pythagorean Theorem which is a^2+b^2=c^2. This formula can help you find the missing length of any side of a right triangle.

Hope this helped!
liq [111]3 years ago
3 0

Answer:

E.

Step-by-step explanation:

6^2=x^2+3^2

X^2=36-9

X=

\sqrt{27}

You might be interested in
Andrea, Justin, and Virginia went to an office supply store. Andrea bought 6 pencils, 7 markers, and 8 erasers. Her total was $1
olga2289 [7]

Answer:

x=0.25\,,\,y=1.75\,,\,z=0.25

Step-by-step explanation:

Let x,y,z denotes number of pencils, markers, erasers respectively.

For Andrea:

6x+7y+8z=15.75\,\,\,(i)

For Justin:

6x+8y+5z=16.75\,\,\,(ii)

For Virginia:

5x+5y+7z=11.75\,\,\,(iii)

On subtracting equations (i) and (ii), we get

(6x+7y+8z)-(6x+8y+5z)=15.75-16.75\\-y+3z=-1\\y-3z=1\\y=1+3z

Put y=1+3z in equation (i)

6x+7(1+3z)+8z=15.75\\6x+29z=8.75\,\,\,(iv)

Put y=1+3z in equation (iii)

5x+5(1+3z)+7z=11.75\\5x+22z=6.75\,\,\,(v)

Multiply equation (iv) by 5 and equation (v) by 6 and then subtract both the equations.

5(6x+29z)-6(5x+22z)=5(8.75)-6(6.75)\\13z=3.25\\z=\frac{3.25}{13}=0.25

Put z=0.25 in equation y=1+3z

y=1+3(0.25)=1.75

Put y=1.75\,,\,z=0.25 in equation (i)

6x+7(1.75)+8(0.25)=15.75\\6x+12.25+2=15.75\\6x=1.5\\x=0.25

8 0
3 years ago
Plz help meee Thank you very much for whoever helps
ratelena [41]

Answer:

70

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
In triangle abc, the perimeter is 36, and ab=ac. line ad is perpendicular to bc at the point d, and triangle abd's perimeter is
Musya8 [376]
Let x=ab=ac, and y=bc, and z=ad.

Since the perimeter of the triangle abc is 36, you have:

Perimeter of abc = 36
ab + ac + bc = 36
x + x + y = 36
(eq. 1) 2x + y = 36

The triangle is isosceles (it has two sides with equal length: ab and ac). The line perpendicular to the third side (bc) from the opposite vertex (a), divides that third side into two equal halves: the point d is the middle point of bc. This is a property of isosceles triangles, which is easily shown by similarity.

Hence, we have that bd = dc = bc/2 = y/2 (remember we called bc = y).

The perimeter of the triangle abd is 30:

Permiter of abd = 30
ab + bd + ad = 30
x + y/2 + z =30
(eq. 2) 2x + y + 2z = 60

So, we have two equations on x, y and z:

(eq.1) 2x + y = 36
(eq.2) 2x + y + 2z = 60

Substitute 2x + y by 36 from (eq.1) in (eq.2):

(eq.2') 36 + 2z = 60

And solve for z:

36 + 2z = 60 => 2z = 60 - 36 => 2z = 24 => z = 12

The measure of ad is 12.

If you prefer a less algebraic reasoning:

- The perimeter of abd is half the perimeter of abc plus the length of ad (since you have "cut" the triangle abc in two halves to obtain the triangle abd).

- Then, ad is the difference between the perimeter of abd and half the perimeter of abc:

ad = 30 - (36/2) = 30 - 18 = 12
4 0
3 years ago
Read 2 more answers
Please help, the subject is math
Sonja [21]

Answer: D

Step-by-step explanation:

6 0
3 years ago
Simplify the expressions plz help
Sophie [7]

Alright, so the answer for:

 3) is 3v + 4

6 0
3 years ago
Other questions:
  • What is 4/3 divided by 1/6
    15·2 answers
  • Line AB is Perpendicular to line BC. A=(-3,2) and C=(2,7). Which of the following could be the coordinates of B? Select all that
    13·2 answers
  • What are the answers??
    9·1 answer
  • Simplify the expression -4(-10 + 2n)
    10·1 answer
  • Three hamburgers and one milkshake cost $6.80. Two hamburgers and one milkshake cost $5.30
    15·1 answer
  • What is the solution to -4 = 2 - 3/10p + 9
    14·2 answers
  • Graphing standard form inequalities help plz
    10·1 answer
  • ​Marco is building a box to store his son's toy wooden cubes. ​Each wooden cube has a volume of 1/12 cubic meter. In total, how
    7·1 answer
  • Graph the line with slope -5 and y-intercept 1.
    10·1 answer
  • Help please this is urgent
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!