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3 years ago

8

in this right rectangular each small cube measures 1 unit on each side what is the volume of the prism please help practice ques

tion for parcc test

1 answer:

Nikitich [7]3 years ago

8 0

Yes because it can what ever shape

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1. Geoff rode his bike along an 8-mile path and lost his cell phone at some random location

Elina [12.6K]

Answer:

0.3125

Step-by-step explanation:

Use definition of geometric probability:

$P=\dfrac{\text{Desired Length}}{\text{Total Length}}$

In your case,

Total Length = 8 miles

Desired Length = 7 - 4.5 = 2.5 miles,

so the probability is

$P=\dfrac{2.5}{8}=\dfrac{25}{80}=\dfrac{5}{16}=0.3125$

5 0

3 years ago

The length of a rectangle is the sum of the width and one. The area direct angle 72 units. What’s the length, in units, of the r

insens350 [35]

Answer:

The length of the rectangle is of 9 units.

Step-by-step explanation:

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

$ax^{2} + bx + c, a\neq0$ .

This polynomial has roots $x_{1}, x_{2}$ such that $ax^{2} + bx + c = a(x - x_{1})*(x - x_{2})$ , given by the following formulas:

$x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}$

$x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}$

$\bigtriangleup = b^{2} - 4ac$

Area of a rectangle:

A rectangle has width $w$ and length $l$ . The area is the multiplication of these measures, that is:

$A = wl$

The length of a rectangle is the sum of the width and one.

This means that $l = w+1$ , or $w = l - 1$

The area direct angle 72 units. What’s the length, in units, of the rectangle

We want to find the length. So

$wl = 72$

$(l-1)l = 72$

$l^2 - l - 72 = 0$

Quadratic equation with $a = 1, b = -1, c = -72$ . So

$\bigtriangleup = (-1)^{2} - 4(1)(-72) = 289$

$l_{1} = \frac{-(-1) + \sqrt{289}}{2*(1)} = 9$

$l_{2} = \frac{-(-1) - \sqrt{289}}{2*(1)} = -8$

Since the length is a positive measure, the length of the rectangle is of 9 units.

8 0

3 years ago

Complete the table. Explain why the relationship is a proportional relationship. A cashier earns $8 per hour. Time (h) 2 4 Pay (

Alekssandra [29.7K]

Answer:

8 16 24 32 <u>40</u> 48 56 64 <u>72</u>

1 2 3 4 <u>5</u> 6 7 8 <u>9</u>

Step-by-step explanation:

The proportion is 8:1

When the dollar amounts increase by 8, the hour amounts increase by 1, and vice versa. That is why it is a proportion.

6 0

3 years ago

What is the value of x <br><br> 24 <br> 9<br> 21<br> 14

Fynjy0 [20]

Both of this angles are same side interior angles which means both of this angles when added equal to 180 degrees

5x +15 + 3x - 3 = 180

8x - 12 = 180
+12 +12

8x = 192

x = 24

8 0

3 years ago

Read 2 more answers

¿What is the density of a rock if it has a mass of 50 g and a volume of 10 mL?

yan [13]

D=m/v so d=50/10=5

The density is 5g/ml

It might be ml^3 (5g/ml^3) but I don’t remember

4 0

3 years ago