3 years ago

Wjat are the x intercepts if y=x squared minus 100

Mathematics

1 answer:

Effectus [21]3 years ago

3 0

Answer:

x = ± 10

Step-by-step explanation:

Given

y = x² - 100 ← a difference of squares , that is

y = x² - 10² = (x - 10)(x + 10)

To find the x- intercepts let y = 0 , that is

(x - 10)(x + 10) = 0

Equate each factor to zero and solve for x

x - 10 = 0 ⇒ x = 10

x + 10 = 0 ⇒ x = - 10

You might be interested in

Describe its graph. <br><br> 4 – 5x > 19

ira [324]

Answer:

X is greater than 4.6

Step-by-step explanation:

7 0

3 years ago

Fatima drove 100 miles in 4 hours. What is the constant of proportionality for 100 miles in 4 hours and 200 miles in 8 hours? Pl

Helen [10]

Answer:

Step-by-step explanation:

4 hours goes into 100 miles 25 times.

3 0

3 years ago

Geometry, multiple choice. Answer all if possible. Ty.

faltersainse [42]

12. The answer is B because the sum of any two sides of a triangle must be greater than the other side.
A. 4 → 4 + 4 is not GREATER than 8
B. 8 → 4 + 8 is greater than 8 and 8 + 8 is greater than 4
C. 12 → 4 + 8 is not GREATER than 12
D. 16 → 4 + 8 is not GREATER than 16

13. The central angle containing the green beans is 360° - (195°+98°) = 67°.
If the diameter of the circle is 12 then the circumference = πd = 12π.
$\frac{67}{360}$ × 12π≈7.013
So the correct answer is A
67/360 represents the portion of the circle which is green beans and you multiply it by the circumference to find the length of that arc.

3 0

3 years ago

Graph the inequality x -2y <8

Jet001 [13]

Here you go:
Hope this helped.