All categories

3 years ago

Which is the more reasonable measure for the length of a car? 50m 5cm 5m Thanks

Mathematics

1 answer:

Roman55 [17]3 years ago

8 0

Answer:

Step-by-step explanation:

You might be interested in

What is the perimeter of a rectangle?

Ilia_Sergeevich [38]

Answer:

Step-by-step explanation:

length = l ;width = w

Perimeter of rectangle = sum of all sides

= l + w + l +w

= 2l + 2w

= 2*(l +w )

5 0

3 years ago

What is the value of (16^3/2)^1/2

Alika [10]

Answer: =1024. *The answer must be have positive sign.*

Step-by-step explanation:

This question's it's about the order of operations. p-parenthesis, e-exponents, m-multiply, d-divide, a-add, and s-subtract. It can also go left to right.

do exponents first.

16³/2=4098=2048¹/2

2048¹=2048

2048/2

divide left to right.

2048/2=1024

Hope this helps!

Thanks!

Have a great day!

4 0

3 years ago

Solve -3x=2x^2-4 using quadratic formula

frozen [14]

Answer:

$x=-2.35078, 0.850781$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Standard Form: ax² + bx + c = 0
Quadratic Formula: $x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}$

Step-by-step explanation:

Step 1: Define equation

-3x = 2x² - 4

Step 2: Rewrite into Standard Form

0 = 2x² + 3x - 4

Step 3: Define variables

a = 2

b = 3

c = -4

Step 4: Find x

Substitute: $x=\frac{-3\pm\sqrt{3^2-4(2)(-4)} }{2(2)}$
Evaluate: $x=\frac{-3\pm\sqrt{9-4(2)(-4)} }{2(2)}$
Multiply: $x=\frac{-3\pm\sqrt{9+32} }{4}$
Add: $x=\frac{-3\pm\sqrt{41} }{4}$
Evaluate: $x=\frac{-3\pm6.40312}{4}$
Evaluate: $x=-2.35078, 0.850781$

And we have our final answer!

6 0

3 years ago

What is the slope of a line that is perpendicular to the given equation? y = --1/2x + 7

Anna007 [38]

Answer:

The slope would flip along with the sign so it would be 2x

8 0

3 years ago

A long distance phone call between two cities costs $3.43 for 7 minutes. What is the rate in cents per minute?

Evgesh-ka [11]

3.43 dollars divided by 7 minutes = 0.49 cents

4 0

3 years ago