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Math Problems
Algebra 2
Find trigonometric functions using a calculator
In circle
Q
\mathrm{Q}
Q
with
m
∠
P
Q
R
=
8
6
∘
m \angle P Q R=86^{\circ}
m
∠
PQR
=
8
6
∘
and
P
Q
=
10
P Q=10
PQ
=
10
, find the area of sector
P
Q
R
\mathrm{PQR}
PQR
. Round to the nearest hundredth.
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Shes chicy gavespouta
\newline
(A)et
5
5
5
\newline
First try was inoorrect
\newline
Simplify
\newline
(
−
6
x
−
6
)
(
6
x
−
3
)
(-6x-6)(6x-3)
(
−
6
x
−
6
)
(
6
x
−
3
)
\newline
(
Y
)
/
(
X
)
(Y)/(X)
(
Y
)
/
(
X
)
\newline
x
2
x^{2}
x
2
\newline
f
(
x
)
f(x)
f
(
x
)
\newline
x
n
\sqrt[n]{x}
n
x
\newline
x
n
x_{n}
x
n
\newline
□
\square
□
\newline
(
x
)
(x)
(
x
)
\newline
∣
x
∣
≤
|x| \leq
∣
x
∣
≤
\newline
(
−
6
x
−
6
)
(
6
x
−
3
)
(-6x-6)(6x-3)
(
−
6
x
−
6
)
(
6
x
−
3
)
0
0
0
\newline
(
−
6
x
−
6
)
(
6
x
−
3
)
(-6x-6)(6x-3)
(
−
6
x
−
6
)
(
6
x
−
3
)
1
1
1
\newline
(
−
6
x
−
6
)
(
6
x
−
3
)
(-6x-6)(6x-3)
(
−
6
x
−
6
)
(
6
x
−
3
)
2
2
2
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Biết
\newline
P
≤
100
log
2
a
P \leq 100\log_{2}a
P
≤
100
lo
g
2
a
, tính tổng các giá trị của
\newline
n
n
n
.
\newline
A.
9
9
9
.
\newline
B.
100
100
100
.
\newline
C.
0
0
0
.
\newline
D.
45
45
45
.
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12
12
12
. Find the area between the curves
y
=
x
2
+
x
+
1
y=x^{2}+x+1
y
=
x
2
+
x
+
1
and
y
=
−
2
x
2
−
4
x
−
1
y=-2 x^{2}-4 x-1
y
=
−
2
x
2
−
4
x
−
1
. Round to
2
2
2
decimal places.
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Find the value of
sin
X
\sin X
sin
X
rounded to the nearest hundredth, if necessary.
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(b)
P
(
x
ˉ
<
66.4
)
=
0.7639
P(\bar{x}<66.4)=0.7639
P
(
x
ˉ
<
66.4
)
=
0.7639
(Round to four decimal places as needed.)
\newline
(c)
P
(
x
ˉ
≥
64.2
)
=
P(\bar{x} \geq 64.2)=
P
(
x
ˉ
≥
64.2
)
=
□
\square
□
(Round to four decimal places as needed.)
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(d)
P
(
74
<
x
ˉ
<
89.6
)
=
P(74<\bar{x}<89.6)=
P
(
74
<
x
ˉ
<
89.6
)
=
□
\square
□
(Round to four decimal places as needed.)
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Find the surface area of the regular pyramid to the nearest hundredth.
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Question
\newline
Find the value of
cos
D
\cos D
cos
D
rounded to the nearest hundredth, if necessary.
\newline
Answer Attempt
1
1
1
out of
2
2
2
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Equations and Inequali
\newline
kadenh
137
137
137
@alpineschools.net Switch account
\newline
* Indicates required question
\newline
Question
4
4
4
\newline
1
1
1
point
\newline
4
4
4
. Which expression is equivalent to
9
y
−
1
2
(
4
y
+
20
)
9 y-\frac{1}{2}(4 y+20)
9
y
−
2
1
(
4
y
+
20
)
?
\newline
F.
11
y
−
10
11 y-10
11
y
−
10
\newline
G.
7
y
−
10
7 y-10
7
y
−
10
\newline
H.
7
y
+
10
7 y+10
7
y
+
10
\newline
J.
11
y
+
10
11 y+10
11
y
+
10
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A
=
8000
(
1
+
0.1
4
)
(
4
⋅
15
)
=
A=8000\left(1+\frac{0.1}{4}\right)^{(4 \cdot 15)}=
A
=
8000
(
1
+
4
0.1
)
(
4
⋅
15
)
=
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eltaMath Student Application
\newline
Ident/
2803981
2803981
2803981
/
23389547
23389547
23389547
/
2
2
2
d
15331
15331
15331
f
68
68
68
db
0
0
0
bf
9
9
9
b
123
123
123
bec
832
832
832
b
8557
8557
8557
e
\newline
Question
4
4
4
\newline
23
,
2024
)
23,2024)
23
,
2024
)
\newline
Find the value of
cos
C
\cos C
cos
C
rounded to the nearest hundredth, if necessary.
\newline
Answer
\newline
Log Out
\newline
cos
C
=
\cos C=
cos
C
=
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giving your answer correct to
3
3
3
significant figures.
\newline
10
10
10
. Solve the equation
\newline
ln
(
1
+
x
2
)
=
1
+
2
ln
x
\ln \left(1+x^{2}\right)=1+2 \ln x
ln
(
1
+
x
2
)
=
1
+
2
ln
x
\newline
giving your answer correct to
3
3
3
significant figures.
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Question
9
9
9
, Instructor-
\newline
created question
\newline
points
\newline
Points:
0
0
0
of
1
1
1
\newline
Save
\newline
Assume that the paired data came from a population that is normally distributed. Using a
0
0
0
.
05
05
05
significance level and
d
=
x
−
y
d=x-y
d
=
x
−
y
, find
d
ˉ
\bar{d}
d
ˉ
, and
s
d
s_{d}
s
d
.
\newline
\begin{tabular}{lcccccccc}
\newline
x
\mathrm{x}
x
&
13
13
13
&
10
10
10
&
18
18
18
&
13
13
13
&
8
8
8
&
9
9
9
&
3
3
3
&
8
8
8
\\
\newline
y
\mathrm{y}
y
&
11
11
11
&
8
8
8
&
13
13
13
&
8
8
8
&
8
8
8
&
13
13
13
&
5
5
5
&
5
5
5
\newline
\end{tabular}
\newline
d
ˉ
=
0.875
\bar{d}=0.875
d
ˉ
=
0.875
(Round to three decimal places as needed.)
\newline
s
d
=
0.2
s_{d}=0.2
s
d
=
0.2
(Round to three decimal places as needed.)
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Find
m
∠
J
m \angle J
m
∠
J
for each right triangle to the nearest deg
\newline
8
8
8
.
\newline
9
9
9
. J
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Find a line of fit using
(
10
,
0.75
)
(10,0.75)
(
10
,
0.75
)
and
(
15
,
0.69
)
(15,0.69)
(
15
,
0.69
)
.
\newline
Enter the correct values to the nearest hundredth in the boxes.
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Estimate the mean of the following set of data to one decimal place: *
\newline
\begin{tabular}{|c|c|}
\newline
\hline Number of Words & Frequency \\
\newline
\hline
1
−
7
1-7
1
−
7
&
15
15
15
\\
\newline
\hline
8
−
14
8-14
8
−
14
&
20
20
20
\\
\newline
15
−
21
15-21
15
−
21
&
45
45
45
\\
\newline
22
−
28
22-28
22
−
28
&
47
47
47
\\
\newline
29
−
35
29-35
29
−
35
&
23
23
23
\\
\newline
36
−
42
36-42
36
−
42
&
10
10
10
\\
\newline
\hline
\newline
\end{tabular}
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觛
\newline
Aitil II
\newline
(a)
\newline
QA.
110
110
110
\newline
(i)
D
C
\mathrm{DC}
DC
\newline
(it)
\newline
6
6
6
.
60
60
60
\newline
D)
60
60
60
Get tutor help
z
′
=
1
+
i
x
1
−
i
x
z^{\prime}=\frac{1+i x}{1-i x}
z
′
=
1
−
i
x
1
+
i
x
Get tutor help
Time Remaining
\newline
3
3
3
\newline
4
4
4
points
\newline
Calculate the area for the composite figure.
\newline
126
+
49
π
m
126+49 \pi \mathrm{m}
126
+
49
π
m
\newline
77
+
12.25
π
m
77+12.25 \pi \mathrm{m}
77
+
12.25
π
m
\newline
126
+
12.25
π
m
126+12.25 \pi \mathrm{m}
126
+
12.25
π
m
\newline
77
+
49
π
m
77+49 \pi \mathrm{m}
77
+
49
π
m
\newline
Previous
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Question
2
2
2
\newline
Find the value of the variable. (Find the inverse trig function). Round to two places.
\newline
Make sure your calculator is in the degree mode
\newline
tan
tan
y
=
7.3
15.2
\tan \tan y=\frac{7.3}{15.2}
tan
tan
y
=
15.2
7.3
Get tutor help
9
9
9
. Fill in the blanks.
\newline
a.
1
1
1
tbsp.
=
=
=
\qquad
tsp.
\newline
d.
1
4
l
b
.
=
\frac{1}{4} \mathrm{lb} .=
4
1
lb
.
=
\qquad
oz.
\newline
g.
10
h
m
=
10 \mathrm{hm}=
10
hm
=
\qquad
k
m
\mathrm{km}
km
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u
⃗
=
(
−
9
,
3
)
\vec{u} = (-9,3)
u
=
(
−
9
,
3
)
\newline
Find the direction angle of
u
⃗
\vec{u}
u
.
\newline
Enter your answer as an angle in degrees between
0
∘
0^{\circ}
0
∘
and
36
0
∘
360^{\circ}
36
0
∘
rounded to the nearest hundredth.
\newline
θ
=
\theta=
θ
=
□
∘
\square^{\circ}
□
∘
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E
2
2
2
\newline
Try It! Apply the Law of Sines to fi
\newline
2
2
2
. What is
X
Z
X Z
XZ
to the nearest tenth?
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Calculate the distance between the points
G
=
(
0
,
7
)
G=(0,7)
G
=
(
0
,
7
)
and
L
=
(
−
8
,
2
)
L=(-8,2)
L
=
(
−
8
,
2
)
in the coordinate plane. Round your answer to the nearest hundredth.
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Data berikut merupakan nilai ujian Mata Kuliah Pengantar Statistika Bisnis dari
34
34
34
Mahasiswa
\newline
\begin{tabular}{lllllllll}
\newline
71
71
71
&
75
75
75
&
57
57
57
&
88
88
88
&
64
64
64
&
80
80
80
&
75
75
75
&
82
82
82
&
90
90
90
\\
\newline
68
68
68
&
90
90
90
&
88
88
88
&
71
71
71
&
75
75
75
&
71
71
71
&
81
81
81
&
81
81
81
&
48
48
48
\\
\newline
82
82
82
&
72
72
72
&
62
62
62
&
68
68
68
&
74
74
74
&
79
79
79
&
84
84
84
&
75
75
75
&
57
57
57
\\
\newline
75
75
75
&
75
75
75
&
68
68
68
&
65
65
65
&
68
68
68
&
75
75
75
&
80
80
80
& &
\newline
\end{tabular}
\newline
1
1
1
.Buatkan tabel distribusi frekuensi
\newline
2
2
2
.Buatkan tabel distribusi frekuensi kumulatifnya
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Data berikut merupakan nilai ujiian Mata Kuliah Pengantar Statistika Bisnis dari
34
34
34
Mahasiswa
\newline
\begin{tabular}{lllllllll}
\newline
71
71
71
&
75
75
75
&
57
57
57
&
88
88
88
&
64
64
64
&
80
80
80
&
75
75
75
&
82
82
82
&
90
90
90
\\
\newline
68
68
68
&
90
90
90
&
88
88
88
&
71
71
71
&
75
75
75
&
71
71
71
&
81
81
81
&
81
81
81
&
48
48
48
\\
\newline
82
82
82
&
72
72
72
&
62
62
62
&
68
68
68
&
74
74
74
&
79
79
79
&
84
84
84
&
75
75
75
&
57
57
57
\\
\newline
75
75
75
&
75
75
75
&
68
68
68
&
65
65
65
&
68
68
68
&
75
75
75
&
80
80
80
& &
\newline
\end{tabular}
\newline
1
1
1
.Buatkan tabel distribusi frekuensi
\newline
2
2
2
.Buatkan tabel distribusi frekuensi kumulatifnya
Get tutor help
π
D
2
4
=
4
D
=
4.
A
π
\frac{\pi D^{2}}{4}=4 \quad D=\sqrt{\frac{4 . A}{\pi}}
4
π
D
2
=
4
D
=
π
4.
A
\newline
Siairl consiny TASLE
\newline
SANT:
12
12
12
:
05
05
05
\newline
(
26
26
26
.
02
02
02
.
2024
2024
2024
)
\newline
TRAME!!
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The length of the day in Lagos, Nigeria (in minutes),
t
t
t
days since the beginning of the year can be estimated by this formula:
\newline
L
(
t
)
=
727
+
22
sin
(
2
π
(
t
−
80.75
)
365
)
.
L(t)=727+22 \sin \left(\frac{2 \pi(t-80.75)}{365}\right) .
L
(
t
)
=
727
+
22
sin
(
365
2
π
(
t
−
80.75
)
)
.
\newline
When is the longest day of the year? Give an exact answer.
\newline
□
\square
□
days since the beginning of the year
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Solve the initial value problem
\newline
y
′
′
+
2
y
′
+
2
y
=
e
−
x
cos
x
,
y
(
0
)
=
0
,
y
′
(
0
)
=
0
y^{\prime \prime}+2 y^{\prime}+2 y=\frac{e^{-x}}{\cos x}, \quad y(0)=0, \quad y^{\prime}(0)=0
y
′′
+
2
y
′
+
2
y
=
cos
x
e
−
x
,
y
(
0
)
=
0
,
y
′
(
0
)
=
0
\newline
To check your answer, enter
y
(
π
/
4
)
y(\pi / 4)
y
(
π
/4
)
with
3
3
3
decimal places
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Find the arc length.
\newline
- A.
98
π
3
\frac{98 \pi}{3}
3
98
π
\newline
B.
75
π
4
\frac{75 \pi}{4}
4
75
π
\newline
c.
19
π
3
\frac{19 \pi}{3}
3
19
π
Get tutor help
Find the arc length.
\newline
A.
\newline
(
98
π
)
/
(
3
)
(98 \pi)/(3)
(
98
π
)
/
(
3
)
\newline
B.
\newline
(
75
π
)
/
(
4
)
(75 \pi)/(4)
(
75
π
)
/
(
4
)
\newline
C.
\newline
(
19
π
)
/
(
3
)
(19 \pi)/(3)
(
19
π
)
/
(
3
)
\newline
Question
2
2
2
.
\newline
Type here to search
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Raj drove at
80
k
m
/
h
80 \mathrm{~km} / \mathrm{h}
80
km
/
h
for the first
4
9
\frac{4}{9}
9
4
of the journey from his house to a village. He completed the remaining
30
k
m
30 \mathrm{~km}
30
km
of the journey in
30
m
i
n
30 \mathrm{~min}
30
min
. How long did Raj take to complete the whole journey?
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80
=
100
×
(
x
0
,
54
)
2
,
4986
80=100 \times\left(\frac{x}{0,54}\right)^{2,4986}
80
=
100
×
(
0
,
54
x
)
2
,
4986
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dalam sebuah kotak terdapat
7
7
7
bola merah,
8
8
8
bola kuning ,
5
5
5
bola hijau
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verdadera con respecto al n\'umero de veces que se esperar\'ia que cayera en
1
1
1
seg\'un este experimento?
\newline
R.
125
125
125
veces; menos de lo esperado te\'oricamente
\newline
B.
125
125
125
veces; m\'as de lo esperado te\'oricamente
\newline
C.
105
105
105
veces; menos de lo esperado te\'oricamente
\newline
D.
105
105
105
veces; m\'as de lo esperado te\'oricamente
Get tutor help
New Tab
\newline
Clever | Portal
\newline
Question
2
2
2
- Monday
4
4
4
.
8
8
8
\newline
86.376
/
5.9
⋅
60
86.376 / 5.9 \cdot 60
86.376/5.9
⋅
60
\newline
cdn.assess.prod.mheducation.com/dle-assess-delivery-ui/v
3
3
3
.
23
23
23
.
9
9
9
/assessment/page/
2
2
2
?token=a
8
8
8
f
\newline
Curriculum Resources
\newline
Assginments
\newline
Free Paraphrasing T..
\newline
spanish reading
\newline
New country every d.
\newline
Mail - Gavin S
\newline
Question
2
2
2
of
5
5
5
\newline
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\newline
Question
2
2
2
\newline
Find the area of the figure. Use
3
3
3
.
14
14
14
for
π
\pi
π
. Round to the nearest hundredth.
\newline
y
d
2
y d^{2}
y
d
2
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In a right triangle,
cos
(
2
x
)
∘
=
sin
(
7
x
−
7
)
∘
\cos (2 x)^{\circ}=\sin (7 x-7)^{\circ}
cos
(
2
x
)
∘
=
sin
(
7
x
−
7
)
∘
. Solve for
x
x
x
. Round your answer to the nearest hundredth if necessary.
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Find the value of
6
4
−
2
3
64^{-\frac{2}{3}}
6
4
−
3
2
\newline
(
1
1
1
mark)
\newline
θ
\theta
θ
□
\square
□
\newline
Submit Answer
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Calculate the length of side
B
C
\mathrm{BC}
BC
, to the nearest hundredth.
\newline
Select one:
\newline
A.
3
3
3
.
00
00
00
\newline
B.
3
3
3
.
94
94
94
\newline
C.
3
3
3
.
22
22
22
\newline
D.
4
4
4
.
26
26
26
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3
⋅
5
0.2
w
=
720
3 \cdot 5^{0.2 w}=720
3
⋅
5
0.2
w
=
720
\newline
What is the solution of the equation?
\newline
Round your answer, if necessary, to the nearest thousandth.
\newline
w
≈
w \approx
w
≈
\newline
□
\square
□
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Question
7
7
7
\newline
Find the value of
x
x
x
. The hypotenuse of the formed triangle is
32
32
32
. Round to the nearest hundredth.
\newline
□
\square
□
\newline
Search
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rCumference of Circles
\newline
Find the circumference of the bottle cap.
U
U
U
3
3
3
.
14
14
14
for
π
\pi
π
. Round to the nearest hundredth necessary. (Example
1
1
1
)
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ixl.com/math/geometry/inscribed-angles?ImsPlatform=
1
1
1
\newline
Monthly Budget ken...
\newline
d Desmos / Graphing...
\newline
Credibility of Source...
\newline
Graphic Organi
\newline
What is
m
∠
V
U
W
m \angle V U W
m
∠
V
U
W
?
\newline
Write your answer as an integer or decimal.
\newline
m
∠
V
U
W
=
m \angle V U W=
m
∠
V
U
W
=
□
\square
□
\newline
Submit
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Find equivalent hundredths and thousandths.
\newline
280
1000
=
\frac{280}{1000}=
1000
280
=
hundredths
=
=
=
\qquad
thousandths
\newline
2
2
2
\newline
□
\square
□
\newline
Submit Answer
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Find the rate of interest.
\newline
115.00
=
100
(
1
+
r
4
)
4
⋅
1
115.00=100\left(1+\frac{r}{4}\right)^{4 \cdot 1}
115.00
=
100
(
1
+
4
r
)
4
⋅
1
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Calculate.
\newline
Δ
P
=
6.2
×
(
45000
0
1
3
120
)
1.1
\Delta P = 6.2 \times \left(\frac{450000^{\frac{1}{3}}}{120}\right)^{1.1}
Δ
P
=
6.2
×
(
120
45000
0
3
1
)
1.1
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Math To Do, i-Ready
\newline
om/student/dashboard/home
\newline
Unit Rates for Ratios with Fractions, Part
2
2
2
- Instruction - Level G
\newline
jellyfish travels
3
5
\frac{3}{5}
5
3
mile in
1
6
\frac{1}{6}
6
1
hour and a walrus travels
5
6
\frac{5}{6}
6
5
mile in
3
10
\frac{3}{10}
10
3
hour. Which animal is faster?
\newline
Find the jellyfish's speed in miles per hour.
\newline
The jellyfish has a speed of
□
\square
□
miles ser hour.
\newline
Find the walrus' speed in miles per hour.
\newline
The walrus has a speed of per hour.
\newline
5
6
3
10
=
5
6
÷
3
10
\frac{\frac{5}{6}}{\frac{3}{10}}=\frac{5}{6} \div \frac{3}{10}
10
3
6
5
=
6
5
÷
10
3
\newline
An error has occurred. Please enter a ir
\newline
\begin{tabular}{|c|c|c|c|}
\newline
\hline \multicolumn{
4
4
4
}{|c|}{... } \\
\newline
\hline
7
7
7
&
8
8
8
&
9
9
9
&
x
\mathbf{x}
x
\\
\newline
\hline
4
4
4
&
5
5
5
&
6
6
6
& - \\
\newline
\hline
1
1
1
&
2
2
2
&
3
3
3
&
⇒
\Rightarrow
⇒
\\
\newline
\hline
0
0
0
& &
(
−
)
(-)
(
−
)
& 믐 \\
\newline
\hline
\newline
\end{tabular}
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Simplify.
\newline
5
×
1
0
2
3
×
1
0
8
\frac{5 \times 10^{2}}{3 \times 10^{8}}
3
×
1
0
8
5
×
1
0
2
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Solve for
x
x
x
to the nearest
10
10
10
th.
\newline
3000
=
6680
(
0.985
)
x
−
1200
3000=6680(0.985)^{x}-1200
3000
=
6680
(
0.985
)
x
−
1200
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2
3
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