2 years ago

Solve for x. X2 - 20x+ 100 = 0

Mathematics

1 answer:

lianna [129]2 years ago

8 0

Answer:

X will equal 10 x=10

Step-by-step explanation:

First subtract 100 from both sides to get x^2-20x=-100 then find c. (-b/2)^2 is the formula. then c=100 so add 100 to both sides. x^2-20x+100=200. Then Factor. (x-10)^2=0 is what you should get. then do square root. x-10=0. So now add 10 to both sides and you get x=10. Tada!

You might be interested in

Martin is two years younger than three times his daughter Ada’s age. The sum of their ages is 54. If Ada’s age is given by a, th

Igoryamba

Answer:

Martin is 40 and Ada is 14

Step-by-step explanation:

Martin's age = m
Ada's age = a

Martin is two years younger than three times his daughter Ada’s age:

m = 3a - 2

The sum of their ages is 54:

m + a = 54

Solving this equation for m:

m = 54 - a

Eliminate m:

3a - 2 = 54 - a

Solve for a:

3a + a = 54 + 2
4a = 56
a = 56/4
a = 14

Find m:

m = 54 - 14 = 40

Martin is 40 and Ada is 14

8 0

3 years ago

PLEASE ANSWER THIS ILL GIVE BRAINLIEST

german

Answer:

(-4, -5)

Step-by-step explanation:

-4x + 2y = 6

-4x + 2(x - 1) = 6

-4x + 2x - 2 = 6

-2x - 2 = 6

-2x - 2 + 2 = 6 + 2

-2x = 8

-2x/-2 = 8/-2

x = -4

------------------------

y = x - 1

y = -4 - 1

y = -5

-------------------------

-4(-4) + 2(-5) = 6

16 + -10 = 6

6 = 6

5 0

3 years ago

Which rational expression has a value of 0 when x = 2 ? A) 7x -5/x2 + 10 B) -3x +6/8x-9 C) -5x + 8 / x-2

shepuryov [24]

answer for this question is (b) - 3 x + 6 x /8x- 9

7 0

3 years ago

Read 2 more answers

A rectangle has a length of 28 inches and a diagonal that measures 35 inches. What is the area, in square inches, of the rectang

Natali5045456 [20]

Answer:

28x35=980

Step-by-step explanation:

area of the rectangle= base (28) by height (35)

6 0

3 years ago

Read 2 more answers

What is 4/9 - 1/12 least common moltiple

levacccp [35]

Answer:

Step-by-step explanation:

The LCM of 4, 9, and 12 is the product of all prime numbers on the left, i.e. LCM(4, 9, 12) by division method = 2 × 2 × 3 × 3 = 36.

3 0

3 years ago

Read 2 more answers