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2 years ago

What is the diameter and radius of a circle with a circumference of 78?

Mathematics

2 answers:

Flura [38]2 years ago

8 0

Answer:

D:24.83

Step-by-step explanation:

zzz [600]2 years ago

3 0

Answer: d = 24.83 r = 12.41

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Which two values of x are roots of the polynomial below? x^2-3x+5

Gemiola [76]

Given:

Polynomial $x^2-3x+5$

To find:

The values of x.

Solution:

$x^2-3x+5=0$

Quadratic equation formula:

$$x=\frac{-b \pm \sqrt{b^{2}-4 a c}}{2 a}$

Here $a=1, b=-3, c=5$ .

Substitute the values in the formula, we get

$$x=\frac{-(-3) \pm \sqrt{(-3)^{2}-4 \cdot 1 \cdot 5}}{2 \cdot 1}$

$$x=\frac{3 \pm \sqrt{9-20}}{2}$

$$x=\frac{3 \pm \sqrt{-11}}{2}$

$$x=\frac{3 - \sqrt{-11}}{2} \ \text{and} \ x=\frac{3 + \sqrt{-11}}{2}$

Option E and option F are the roots of the polynomial.

The values of x are $x=\frac{3 - \sqrt{-11}}{2} \ \text{and} \ x=\frac{3 + \sqrt{-11}}{2}$ .

7 0

3 years ago

You have just hired a new employee, Tim, to oversee the production of your new line of water bottles. Tim is a full-time employe

Whitepunk [10]

Answer:

$16,640

Step-by-step explanation:

Tim's total annual wage expense is ...

($8.00 /h)(40 h/wk)(52 wk/yr) = $8×40×52 /yr = $16,640 per year

3 0

3 years ago

Edwina made a circular hula hoop out of a piece of tubing 152 inches long by bending it into a circle and taping the ends togeth

juin [17]

This is equal tio the diameter of the circle formed:-

152 ins = circumference and this = pi * diameter

so the Answer is 152 / pi = 48.4 ins to nearest tenth

48 inches to nearest inch.

7 0

3 years ago

Write an equation for a linear function whose graph has the given characteristics.

Sophie [7]

Answer:

y-1=1/4(x-8)

x-4y-4=0

7 0

3 years ago

What percent of $150 is $87

vesna_86 [32]

87/150=0.58
0.58*100=58

$87 is 58% of $150

Good luck!

8 0

3 years ago

Read 2 more answers