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Brut [27]
3 years ago
6

Solve the equation for all values of x by completing the squarex²+67=18x​

Mathematics
1 answer:
melamori03 [73]3 years ago
5 0

Answer:

x=±\sqrt[]{4}+9

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X over 15 = 10 over 20
den301095 [7]
X/15 = 10/20
20x = 150
x = 150/20
x = 7.5
8 0
3 years ago
09 CP
Veseljchak [2.6K]

Answer:

the answer should be as follows:

-2(q-3)

the closest answer would be A

6 0
3 years ago
Zach is 6 inches shorter than two times his cousin's height, c. How tall is Zach?
Aneli [31]

Answer:

2c - 6

Step-by-step explanation:

If it says less than the next part of the problem goes in front of the minus six.

7 0
3 years ago
Given that BCD and BCA form a straight angle, if BAC measures 40 degrees and BCD measures 75 degrees, then the measure of ABC is
Irina-Kira [14]

Answer:

∠ABC= 35°

Step-by-step explanation:

im not sure if u need explanation but comment if u do

6 0
3 years ago
Find the value of a and b if root3-1/root3+1+ root3+1/root3-1=a+root3 b​
Digiron [165]

Answer:

a=4 and b = 0

Step-by-step explanation:

Given : \dfrac{\sqrt 3 -1}{\sqrt 3+1}+\dfrac{\sqrt 3+1}{\sqrt 3-1}=a+\sqrt 3 b

To find, The value of a and b

Solution,

Solving LHS of the given equation,

\dfrac{(\sqrt 3-1)^2+(\sqrt3+1)^2}{(\sqrt 3+1)(\sqrt 3-1)}=a+\sqrt 3 b

Since,

(a-b)^2=a^2+b^2-2ab\\\\(a+b)^2=a^2+b^2+2ab\\\\(a-b)(a+b)=a^2+b^2

So,

\dfrac{3+1-2\sqrt 3+3+1+2\sqrt 3}{3-1}=a+\sqrt 3 b\\\\4=a+\sqrt 3 b

or

4+0=a+\sqrt 3 b

On comparing we get :

a = 4 and b = 0

4 0
3 years ago
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