2 years ago

Select the correct answer. What is the solution to the equation? image below

Mathematics

1 answer:

ahrayia [7]2 years ago

8 0

Answer:

x = 10

Step-by-step explanation:

Isolate the radical, then raise each side of the equation to the power of its index.

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Which expressions are polynomials? select each correct answer

Zielflug [23.3K]

Note:
A polynomial of order n is of the form
$f(x)=a_{n}x^{n}+a_{n-1}x^{n-1} + \, ..., \, +a_{1}x+a_{0}$
where the a's are constants.

Consider the given expressions.
x/5 + 2 Not a polynomial
35x² It is a polynomial of order 2
7x⁷ - x⁵ It is a polynomial of order 7
4x + √(x-1) It is not a polynomial

Answer:
The polynomials are
35x²
7x⁷ - x⁵

8 0

3 years ago

As part of a physics experiment, Ming drops a baseball from the top of a 315-foot building. To the nearest tenth of a second, fo

artcher [175]

Answer: 4.4 seconds

Step-by-step explanation:

h(t) = -16t² + 315

Since we want to find the total time the baseball is in the air, we need to find the time (t) when the ball lands on the ground --> h(t) = 0

0 = -16t² + 315

-315 = -16t²

$\dfrac{315}{16}=t^2\\\\\\\sqrt{\dfrac{315}{16}}=t\\\\\\\dfrac{\sqrt{315}}{4}=t\\\\\\\large\boxed{4.4=t}$