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2 years ago

One half of what number equals 8

Mathematics

1 answer:

wel2 years ago

4 0

One half of 16 equals 8. Hope I helped!

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How many real solutions if any, does 2x^2-3x+8=0

fenix001 [56]

Answer:

The quadratic equation $2\, x^{2} - 3\, x + 8 = 0$ has no real solution.

Step-by-step explanation:

Rewrite the quadratic equation $2\, x^{2} - 3\, x + 8 = 0$ in the standard form $a\, x^{2} + b\, x + c = 0$ :

$2\, x^{2} + (-3)\, x + 8 = 0$ , for which:

$a = 2$ .
$b = (-3)$ .
$c = 8$ .

The quadratic discriminant of $a\, x^{2} + b\, x + c = 0$ is $(b^{2} - 4\, a\, c)$ . The quadratic discriminant of $2\, x^{2} + (-3)\, x + 8 = 0$ would be:

$\begin{aligned}& b^{2} - 4\, a\, c \\ =\; & (-3)^{2} - 4 \times 2 \times 8 \\ =\; & (-55)\end{aligned}$ .

Since the quadratic discriminant of this equation is negative, this quadratic equation has no real solution.

3 0

1 year ago

Find the radius of a circle whose area is 576π m²

k0ka [10]

Answer:

r = 24 m

Step-by-step explanation:

The area (A) of a circle is calculated as

A = πr² ( r is the radius )

Here A = 576π , then

πr² = 576π ( divide both sides by π )

r² = 576 ( take the square root of both sides )

r = $\sqrt{576}$ = 24

7 0

2 years ago

Can a common denominator of mixed numbers be 20?

gladu [14]

Yes, a common denominator is just the smallest multiple of all numbers in a group.

So the common denominator of 4, 8 and 12 would be 4, because 4 goes into all those numbers.

3 0

3 years ago

Read 2 more answers

Need help with this problems<br>E=10gh<br>solve for g

Nat2105 [25]

Solve for g:
e = 10 g h
e = 10 g h is equivalent to 10 g h = e:
10 g h = e
Divide both sides by 10 h:
Answer: g = e/(10 h)

8 0

3 years ago

Find the GCF of 5y5 and 50y2.

GREYUIT [131]

Answer: $5y^2$