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3 years ago

How many faces does a cube have

Mathematics

2 answers:

dusya [7]3 years ago

5 0

The answer is.....
a cube has 6 faces

Oksi-84 [34.3K]3 years ago

5 0

A cube has exactly 6 faces

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Find the product. √5(2+√7) A)2√5+√35 B)√45 C)2√5+2√7 D)√10+√35

OverLord2011 [107]

Answer:

$\huge \boxed{2\sqrt{5} +\sqrt{35}}$

Step-by-step explanation:

$\sqrt{5} (2+\sqrt{7} )$

Expand brackets.

$\sqrt{5} (2)+\sqrt{5}(\sqrt{7} )$

$2\sqrt{5} +\sqrt{5} \sqrt{7}$

Apply radical rule : $\sqrt{a} \sqrt{b} =\sqrt{ab}$

$2\sqrt{5} +\sqrt{5 \times 7}$

$2\sqrt{5} +\sqrt{35}$

7 0

3 years ago

Read 2 more answers

What are three equivalent Decimal forms for the number 19

docker41 [41]

Answer:

The numbers; 19.0 , 19.00 and 19.000 are same value as the number 19

Step-by-step explanation:

Here in this question, we simply want to write decimals which would have same value as the number 19 when written.

Let’s start with 19.0

This is absolutely same value as the number 19

Furthermore let’s write 19.00

This is also same value as the number 19

Lastly;

19.000

This is same value as the number 19

5 0

3 years ago

Solve the following:<br>4*2=x(mod6)

BigorU [14]

Answer:

x = 1,3

Step-by-step explanation:

$4 \times 2 = x$

$8÷6= x$

$= x = 1,3$

3 0

3 years ago

(2/7)-² ÷ 2² = <br>pls answer

Nataly_w [17]

Answer:

$\frac{4}{98}$

Step-by-step explanation:

→ Simplify the (2/7)² term

$(\frac{2}{7} )^{2} =\frac{2}{7} *\frac{2}{7}=\frac{4}{49}$

→ Simplify the 2² term

$2^{2} =2*2=4$

→ Evaluate

$\frac{4}{49} /2=\frac{4}{49} *\frac{1}{2} =\frac{4}{98}$

4 0

3 years ago

Read 2 more answers

(3a) (a^-3) please help I'm very confused if possible please show your work! <:D

kupik [55]

$\bf ~\hspace{7em}\textit{negative exponents} \\\\ a^{-n} \implies \cfrac{1}{a^n} ~\hspace{4.5em} a^n\implies \cfrac{1}{a^{-n}} ~\hspace{4.5em} \cfrac{a^n}{a^m}\implies a^na^{-m}\implies a^{n-m} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ (3a)(a^{-3})\implies 3a\cdot \cfrac{1}{a^3}\implies \cfrac{3a}{a^3}\implies \cfrac{3~~\begin{matrix} a \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}{aa~~\begin{matrix} a \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}\implies \cfrac{3}{a^2}$

5 0

3 years ago