56%? Answer choices A. 1/25 B. 0.004 C. 40 D. 2/5

describe how you would estimate the square root of a number that is not a perfect square without using a calculator

umka2103 [35]

You find the squares it around, say 23, well its between 25 and 16 the pefect square roots of 5 and 4 and 23 is closer to 25 so it would be around 5

6 0

3 years ago

What is the expression in factored form?x^2+13x+14

nydimaria [60]

Answer:

$\left(x-\dfrac{-13+\sqrt{113}}{2}\right)\left(x-\dfrac{-13-\sqrt{113}}{2}\right).$

Step-by-step explanation:

To factor the expression $x^2+13x+14$ you need to know its roots.

First find the discriminant of this quadratic polynomial:

$D=13^2-4\cdot 1\cdot 14=169-56=113.$

Then the roots of the expression $x^2+13x+14$ are

$x_{1,2}=\dfrac{-13\pm \sqrt{113}}{2}.$

Now the factored form is

$\left(x-\dfrac{-13+\sqrt{113}}{2}\right)\left(x-\dfrac{-13-\sqrt{113}}{2}\right).$

8 0

3 years ago

In basketball, hang time is the time that both of your feet are off the ground during a jump.

matrenka [14]

Expression: t=2(2h/32)^1/2

Squaring on both sides,
t² = 2(2h/32)
t² = 4h/32
t² = h/8
h = 8t²

Height of player 1 = 8(0.9)² = 6.48 Feet
Height of player 2 = 8(0.8)² = 5.12 Feet

Difference = 6.48 - 5.12= 1.36 Feet = 16.32 in

In short, Your Answer would be:16 Inches

Hope this helps!

3 0

3 years ago

Read 2 more answers

Suppose y varies directly with x, and y = 12 when x = 2. What direct variation

neonofarm [45]

Answer:

$y=24$