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2 years ago

Why is expanded form important

Mathematics

2 answers:

anzhelika [568]2 years ago

4 0

Expanded form is important because it is easy for people to see the place value of the numbers.

zheka24 [161]2 years ago

4 0

<em><u>Explanation</u></em>:

One reason expanded form is important is because people need a basic understanding of what numbers mean. Expanded form of a number breaks it down into the value of each digit by place value, which shows us what the entire number means.

Another reason expanded form is important is because it can be used in mental math, making it quicker for us to answer questions.

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Another brainliest if its right

tekilochka [14]

Answer:

16 : 14 = 30 : 26.25

Step-by-step explanation:

If rounded:

16 : 14 = 30 : 26

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2 years ago

Read 2 more answers

Which number is an integer?

olga_2 [115]

The answer is 0.

Hope this helps!

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3 years ago

I need a math problem for my 7th grade math teacher, can anybody help me please?

Lelu [443]

Answer:

Whats the problem? and what class (algebra...)

Step-by-step explanation:

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3 years ago

A rock is thrown upward with an initial velocity of 16 ft/s from an initial height of 5 ft. How much time does it take for the r

Bogdan [553]

Check the picture below.

so it hits the ground when y = 0, thus

$\bf ~~~~~~\textit{initial velocity}\\\\
\begin{array}{llll}
~~~~~~\textit{in feet}\\\\
h(t) = -16t^2+v_ot+h_o
\end{array} 
\quad 
\begin{cases}
v_o=\stackrel{16}{\textit{initial velocity of the object}}\\\\
h_o=\stackrel{5}{\textit{initial height of the object}}\\\\
h=\stackrel{}{\textit{height of the object at "t" seconds}}
\end{cases}$

$\bf h(t)=-16t^2+16t+5\implies \stackrel{h(t)}{0}=-16t^2+16t+5
\\\\\\
16t^2-16t-5=0\implies (4t+1)(4t-5)=0\\\\
-------------------------------\\\\
4t+1=0\implies 4t=-1\implies t=-\cfrac{1}{4}\\\\
-------------------------------\\\\
4t-5=0\implies 4t=5\implies t=\cfrac{5}{4}\implies \boxed{t=1\frac{1}{4}}$

since "t" is seconds it took, it can't be a negative amount.

5 0

3 years ago

Please help me out here.

Tanzania [10]

Answer:

19.634954085

Step-by-step explanation:

Pipe Diameter = Height of the trench

Pipe Height = Width of the trench

V = Pi*r^2*L/ Pi*r^2*h

= 22/7 x (2.5/2)^2 x 4

= 19.634954085

6 0

3 years ago