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4 years ago

Find the zeros of the function f(x)=8x^2 +32

Mathematics

1 answer:

Sholpan [36]4 years ago

5 0

Answer: no solution

Step-by-step explanation:

$8x^{2} +32=0$

Factor out 8

$8(x^{2} +4)=0$

no solution

Why?

Think about the graph, $x^{2}$ shifted up 4 has no zeros, even with a vertical stretch of 8.

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He formula for the circumference of a circle is C = 2r, where r is the radius and C is the circumference. The equation solved fo

Anni [7]

I think the answer is r=8..
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6 0

4 years ago

Read 2 more answers

Determine the center and radius of the following circle equation: x2 + y2 – 10x + 8y + 40 = 0

antiseptic1488 [7]

Answer:

The center of this circle is (5, -4) and the radius is 1.

Step-by-step explanation:

First regroup these terms according to x and y :

x^2 - 10x + y^2 + 8y = -40

Next, complete the square for x^2 - 10x: x^2 - 10x + 5^2 - 5^2.

and the same for y^2 + 8y: y^2 + 8y + 16 - 16

Substituting these results into x^2 - 10x + y^2 + 8y = -40, we get:

x^2 - 10x + 5^2 - 5^2 y^2 + 8y + 16 - 16 = -40.

Next, rewrite x^2 - 10x + 25 and y^2 + 8y + 16 as squares of binomials:

Then x^2 - 10x + 5^2 - 5^2 y^2 + 8y + 16 - 16 = -40 becomes:

(x - 5)^2 + (y + 4)^2 - 25 - 16 = -40, or:

(x - 5)^2 + (y + 4)^2 = 1

This equation has the form (x - h)^2 + (y - k)^2 = r^2, where (h, k) is the center and r is the radius. Matching like terms, we get h = 5, k = -4 and r = 1.

The center of this circle is (5, -4) and the radius is 1.

6 0

3 years ago

Read 2 more answers

Adding integers to add integers we can think of a football field 8 + -2=

zaharov [31]

Answer:

Step-by-step explanation:

I learned this last year

7 0

3 years ago

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Mario says that the expression 4+3n² has four terms: 4, 3, n, and 2. Is he correct? explain.

stich3 [128]

Mario says that the expression $4+3n^2$ has four terms: 4, 3, n, and 2. Mario is incorrect

Solution:

Given that the expression is:

$4+3n^2$

Given that, Mario says that the above expression has four terms

But Mraio is incorrect

Because the given expression has two terms only

4 is one of the term

$3n^2$ is another term

So there are totally 2 terms only

A term can be a signed number, a variable, or a constant multiplied by a variable or variables

Here 3 is a constant multiplied by $n^2$

So, $3n^2$ is one term

Each term in an algebraic expression is separated by a + sign or - sign

Thus there are two terms in mario expression

8 0

3 years ago

Help now plz asphejdjdb

Cloud [144]

Answer:

l:4

w: 3

l:4

w:1

Step-by-step explanation:

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8 0

3 years ago