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snow_tiger [21]
3 years ago
12

The solution of m^2 -14m +49=0 is

Mathematics
1 answer:
vichka [17]3 years ago
5 0

Answer:

Step-by-step explanation:

THRU THE AC METHOD WE CAN SEE THAT -7*-7 IS= 49

AND -7+(-7)=-14

SO FACTORED WE HAVE

(X-7)(X-7)

OR (X-7)^2

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Need help thank u<br> :)
Katyanochek1 [597]

The area of the base is 1/2 x s x s = 1/2 x 12 x 12 = 72 square cm

Volume = area of base x height/3

Volume = 72 x 14/3 = 336 cm^3

3 0
3 years ago
Find the zeros of the quadratic function f(x) = 1/2(x- 7)^2 – 8​
Rasek [7]

Answer:

x = 11 or 3

Step-by-step explanation:

f(x) = (1/2)(x- 7)² – 8​

to find the zeros, we equate f(x) = 0

f(x) = 0

(1/2)(x- 7)² – 8​ = 0      (add 8 to both sides)

(1/2)(x- 7)² = 8     (multiply both sides by 2)

(x- 7)² = (8)(2)

(x- 7)² = 16

x-7 = ±√16

x-7 = ±4

hence,

x - 7 = 4

x = 4 + 7

x = 11

or

x - 7 = -4

x = -4 +7

x = 3

5 0
2 years ago
Find the value of a and b.<br> 2a + 3b = 17<br> 3a + 4b = 24<br> a=<br> b=
Contact [7]

Answer:

a=4 b=3

Step-by-step explanation:

I just used process of elimination

3 0
2 years ago
Radical and complex numbers continued.....
Natasha2012 [34]

1. 4i x -10i = -40ii

 ii = i^2 = -1

-40*-1 = 40


2. -6-9 = -15

5i- - 5i = 5i + 5i = 10i

 answer = -15 +10i


3. raise both sides to the 3rd, and solve for x. x = -12


4. the equation would be x^2+36 =0


8 0
3 years ago
Someone please help!
Phantasy [73]
That’s the answer (next time just use this app called Photomath, it’s great.)

5 0
3 years ago
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