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Pre-Algebra
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Modalità
Il più grande fattore comune
Minimo comune multiplo
Ordine delle operazioni
Frazioni
Frazioni miste
Scomposizione in fattori primi
Esponenti
Radicali
Algebra
Combinazione di termini simili
Risolvere una variabile
Fattore
Espandi
Calcolo delle frazioni
Equazioni lineari
Equazioni di secondo grado
Disparità
Sistemi di equazioni
Matrici
Trigonometria
Semplificare
Calcolare
Grafici
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Elenco
Calcola
26
2
6
Visualizza i passaggi della soluzione
Procedura della soluzione
6.5 \times 4
6
.
5
×
4
Moltiplica 6.5 e 4 per ottenere 26.
Moltiplica
6
.
5
e
4
per ottenere
2
6
.
26
2
6
Scomponi in fattori
2\times 13
2
×
1
3
Quiz
Arithmetic
5 problemi simili a:
6.5 \times 4
6
.
5
×
4
Problemi simili da ricerca Web
Max has a 5 \times 6 card and he enlarged it to be 7.5 \times 9. What was the scale factor?
Max has a
5
×
6
card and he enlarged it to be
7
.
5
×
9
. What was the scale factor?
https://www.quora.com/Max-has-a-5-times-6-card-and-he-enlarged-it-to-be-7-5-times-9-What-was-the-scale-factor
7.5/5=1.5 9/6=1.5 so the answer is 1.5
7.5/5=1.5 9/6=1.5 so the answer is 1.5
How do you evaluate \displaystyle{0.56}\times{48} ?
How do you evaluate
0
.
5
6
×
4
8
?
https://socratic.org/questions/how-do-you-evaluate-0-56-times-48
\displaystyle{26.88} Explanation: \displaystyle{0.56} can be rewritten as \displaystyle\frac{{56}}{{100}} and \displaystyle{48} as \displaystyle\frac{{48}}{{1}} . Therefore, \displaystyle\frac{{56}}{{100}}\cdot\frac{{48}}{{1}}=\frac{{2688}}{{100}} ...
2
6
.
8
8
Explanation:
0
.
5
6
can be rewritten as
1
0
0
5
6
and
4
8
as
1
4
8
. Therefore,
1
0
0
5
6
⋅
1
4
8
=
1
0
0
2
6
8
8
...
Is there more than one way to multiply \displaystyle{25}\times{14} ?
Is there more than one way to multiply
2
5
×
1
4
?
https://socratic.org/questions/5a3557397c01492ecbf06072
The product is \displaystyle{350} , but there are several ways to get that answer. Explanation: Vertical Multiplication \displaystyle{\left.\begin{array}{cc} \ \text{ }\ &{\left({x}\right)}{25}\\\times&\underline{{{\left({x}\right)}{14}}}\\\ \text{ }\ &{100}\\\ \text{ }\ &\underline{{{250}}}\\\ \text{ }\ &{350}\end{array}\right.} ...
The product is
3
5
0
, but there are several ways to get that answer. Explanation: Vertical Multiplication
×
(
x
)
2
5
(
x
)
1
4
1
0
0
2
5
0
3
5
0
...
How to calculate the height of liquid in a communicating vessel after another liquid is added [closed]
How to calculate the height of liquid in a communicating vessel after another liquid is added [closed]
https://physics.stackexchange.com/q/369920
Let h_0 be the initial level in both arms. Now we add the 3.75\ \mathrm{cm} (call it h_1) of B to the right hand side and the level of A in the right arm drops by h (2.5\ \mathrm{cm}). ...
Let
h
0
be the initial level in both arms. Now we add the
3
.
7
5
c
m
(call it
h
1
) of
B
to the right hand side and the level of
A
in the right arm drops by
h
(
2
.
5
c
m
). ...
Proving that 5^n-1 is divisible by 4 for n\geq 0 by induction
Proving that
5
n
−
1
is divisible by
4
for
n
≥
0
by induction
https://math.stackexchange.com/questions/1269491/proving-that-5n-1-is-divisible-by-4-for-n-geq-0-by-induction
...or without direct induction, using A^n-B^n=(A-B)\left((A^{n-1}+A^{n-2}B+\ldots+AB^{n-2}+B^{n-1}\right) ...which is proved, of course, with induction... :) , and then 5^n-1=5^n-1^n=\overbrace{(5-1)}^{=4}(5^{n-1}+5^{n-2}+\ldots+5+1) ...
...or without direct induction, using
A
n
−
B
n
=
(
A
−
B
)
(
(
A
n
−
1
+
A
n
−
2
B
+
…
+
A
B
n
−
2
+
B
n
−
1
)
...which is proved, of course, with induction... :) , and then
5
n
−
1
=
5
n
−
1
n
=
(
5
−
1
)
=
4
(
5
n
−
1
+
5
n
−
2
+
…
+
5
+
1
)
...
cant understand this basic division
cant understand this basic division
https://math.stackexchange.com/questions/2264142/cant-understand-this-basic-division
Notice that in your long division, you are dividing .5 for each position. You did it so for the first position and you get 4. However, when you do it for the second position (first decimal point), ...
Notice that in your long division, you are dividing
.
5
for each position. You did it so for the first position and you get
4
. However, when you do it for the second position (first decimal point), ...
Altri Elementi
Condividi
Copia
Copiato negli Appunti
26
Moltiplica 6.5 e 4 per ottenere 26.
Esempi
Equazione quadratica
{ x } ^ { 2 } - 4 x - 5 = 0
x
2
−
4
x
−
5
=
0
Trigonometria
4 \sin \theta \cos \theta = 2 \sin \theta
4
sin
θ
cos
θ
=
2
sin
θ
Equazione lineare
y = 3x + 4
y
=
3
x
+
4
Aritmetica
699 * 533
6
9
9
∗
5
3
3
Matrice
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
[
2
5
3
4
]
[
2
−
1
0
1
3
5
]
Equazione simultanea
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
{
8
x
+
2
y
=
4
6
7
x
+
3
y
=
4
7
Differenziazione
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
d
x
d
(
x
−
5
)
(
3
x
2
−
2
)
Integrazione
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
∫
0
1
x
e
−
x
2
d
x
Limiti
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}
x
→
−
3
lim
x
2
+
2
x
−
3
x
2
−
9
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