Resources
Testimonials
Plans
Sign in
Sign up
Resources
Testimonials
Plans
Home
Math Problems
Algebra 2
Partial sums of arithmetic series
1
1
1
. Calculate the grams of
N
a
B
r
\mathrm{NaBr}
NaBr
produced when
92
92
92
.
3
3
3
grams of
N
B
r
3
\mathrm{NBr}_{3}
NBr
3
is reacted with
88
88
88
.
8
8
8
grams of
N
a
O
H
\mathrm{NaOH}
NaOH
, according to the following equation (Balance First):
\newline
N
B
r
3
+
N
a
O
H
→
N
2
+
N
a
B
r
\mathrm{NBr}_{3}+\mathrm{NaOH} \rightarrow \mathrm{N}_{2}+\mathrm{NaBr}
NBr
3
+
NaOH
→
N
2
+
NaBr
Get tutor help
f
′
′
(
x
)
=
x
−
2
+
x
3
+
2
,
f
′
(
1
)
=
1
4
,
f
(
1
)
=
0.
f
(
x
)
−
?
f''(x)=x^{-2}+x^3+2, f'(1)=\frac{1}{4}, f(1)=0. f(x)-?
f
′′
(
x
)
=
x
−
2
+
x
3
+
2
,
f
′
(
1
)
=
4
1
,
f
(
1
)
=
0.
f
(
x
)
−
?
Get tutor help
question: Choose the sequence below that is arithmetic. \ A.
77
,
72
,
67
,
62
,
…
77, 72, 67, 62, \ldots
77
,
72
,
67
,
62
,
…
\ C.
3
,
5
,
9
,
17
,
33
,
…
3, 5, 9, 17, 33, \ldots
3
,
5
,
9
,
17
,
33
,
…
\ B.
1
,
4
,
8
,
13
,
19
,
…
1, 4, 8, 13, 19, \ldots
1
,
4
,
8
,
13
,
19
,
…
\ D.
−
7
,
−
14
,
−
28
,
−
56
,
…
-7, -14, -28, -56, \ldots
−
7
,
−
14
,
−
28
,
−
56
,
…
Get tutor help
Jika diketahui
log
2
=
p
\log 2=p
lo
g
2
=
p
dan
log
3
=
\log 3=
lo
g
3
=
q maka nilai dari log
36
36
36
adalah....
\newline
* (
2
2
2
.
5
5
5
Poin)
\newline
A.
P
+
2
q
P+2 q
P
+
2
q
\newline
B.
2
p
+
q
2 p+q
2
p
+
q
\newline
2
(
p
+
q
)
2(p+q)
2
(
p
+
q
)
\newline
P
+
q
P+q
P
+
q
\newline
2
p
q
2 p q
2
pq
Get tutor help
17
17
17
. Empat buah dadu dilempar sekaligus. Peluang bahwa empat buah bilangan yang dihasilkan dapat disusun menjadi deret aritmatika dengan selisih
1
1
1
, adalah.....
\newline
(A)
1
6
\frac{1}{6}
6
1
\newline
(B)
1
12
\frac{1}{12}
12
1
\newline
(C)
1
18
\frac{1}{18}
18
1
\newline
(D)
1
24
\frac{1}{24}
24
1
\newline
(E)
1
36
\frac{1}{36}
36
1
Get tutor help
Diketahui besar
∠
B
O
C
=
12
4
∘
\angle B O C=124^{\circ}
∠
BOC
=
12
4
∘
. Tariklah garis antara pertanyaan dan jawawan yang tepa!!
\newline
\begin{tabular}{|c|c|}
\newline
\hline \multicolumn{
1
1
1
}{|c|}{ Pertanyaan } \\
\newline
\hline A. & Besar
∠
A
O
B
\angle \mathrm{AOB}
∠
AOB
adalah .... \\
\newline
-B. & Besar
∠
B
E
C
\angle \mathrm{BEC}
∠
BEC
adalah .... \\
\newline
C. & Besar
∠
A
D
B
\angle \mathrm{ADB}
∠
ADB
adalah .... \\
\newline
\hline
\newline
\end{tabular}
Get tutor help
99
99
99
divide by
18
18
18
equals to
99
18
\frac{99}{18}
18
99
equals to what as a decimal
Get tutor help
What number must be subtracted from
67345643
67345643
67345643
to get
54903891
?
54903891?
54903891
?
Get tutor help
What number must be subtracted from
67345643
67345643
67345643
to get
54903891
54903891
54903891
?
Get tutor help
f
(
x
)
=
−
2
x
3
+
a
x
2
+
2
f(x)=-2 x^{3}+a x^{2}+2
f
(
x
)
=
−
2
x
3
+
a
x
2
+
2
\newline
You are told that
f
(
2
)
=
14
f(2)=14
f
(
2
)
=
14
, can you work out what
Get tutor help
Solve for
x
x
x
.
\newline
−
5
7
+
7
x
=
9
7
x
\frac{-5}{7}+\frac{7}{x}=\frac{9}{7 x}
7
−
5
+
x
7
=
7
x
9
\newline
Answer:
x
=
x=
x
=
Get tutor help
Find the third partial sum of the series.
\newline
3
+
9
+
15
+
21
+
27
+
33
+
⋯
3 + 9 + 15 + 21 + 27 + 33 + \cdots
3
+
9
+
15
+
21
+
27
+
33
+
⋯
\newline
Write your answer as an integer or a fraction in simplest form.
\newline
S
3
=
S_3 =
S
3
=
____
Get tutor help
Find the third partial sum of the series.
\newline
3
+
9
+
15
+
21
+
27
+
33
+
⋯
3 + 9 + 15 + 21 + 27 + 33 + \cdots
3
+
9
+
15
+
21
+
27
+
33
+
⋯
\newline
Write your answer as an integer or a fraction in simplest form.
\newline
S
3
=
S_3 =
S
3
=
____
Get tutor help
