14.10 答复-第10章:根源和激进功能
Section outline
-
Section 10.2 Evaluating nth Roots
::第10.2节 评估nth根Review
::回顾- 3 3 √ 3
- 5
- 243
- 2 5 √ 4
- 625 64
- 32
- 4 9 3 √ 9
- 3 4 √ 3 2
-
2
x
3
√
3
x
2
::2x33x2 -
2
x
y
3
4
√
3
x
3
y
::2xy343x3y -
2
x
y
5
√
5
x
3
y
2
::2xy5=5x3y2 -
100
x
4
::100x4 100x4 -
3
x
z
2
4
√
2
x
y
3
z
2
::3z242xy3z2 -
64
x
3
y
6
(
√
10
x
)
3
::64x3y6 (10x)3
Explore More
::探索更多-
7
z
2
::7z2 7z2 -
No.
a
1
6
×
a
1
2
=
a
2
3
=
3
√
a
2
::a16xa12=a23=3a2 -
923.2 millibars
::923.2毫巴 -
6.8 years
::6.8岁 -
4.8 years
::4.8岁
Section 10.3 Rational Exponents
::第10.3节 理性指数Review
::回顾- 3 √ 72 5 = 1 , 246.10
- 3 √ 95 2 = 20.82
- 4 √ 125 3 = 37.83
- 16
- 81
- 32
- 125
- 243
- 4
- 27
Explore More (based on renumbering)
::探索更多(基于重新编号)-
a.
T
=
A
3
2
.
b. 1 year.
::a. T=A32.b.1年。 -
540 gerbils
::540 沙发 -
5 grams
::5克5克 -
1,184 bacteria
::1 184细菌
Section 10.4 Exponent Properties and Rational Exponents
::第10.4节 物业和理性物业Review
::回顾-
25
a
7
5
::25a75 -
49
a
2
3
::49a23 -
m
2
9
::中米29 -
x
1
2
y
1
6
::x12y16 x12y16 -
2
r
4
5
s
5
4
t
4
9
::2r45s54t49 -
a
5
b
8
3
::a5b83 (a5b83) -
5
√
5
x
15
14
y
6
::55x1514y6 -
32
x
243
y
2
::32x243y2 -
3
,
125
d
15
2
::3 125 d152 -
9
2
a
1
2
::92a12 -
18
m
2
15
n
1
10
::18m215n110 -
9
x
1
4
y
7
5
25
::9x14y7525
Explore More
::探索更多-
22.6 in
::22.6英寸 22.6英寸 -
Answers will vary.
::答案将各有不同。 -
(
a
+
b
)
3
=
(
a
+
b
)
(
a
+
b
)
(
a
+
b
)
:a+b)3=(a+b)(a+b)(a+b)(a+b)
Section 10.5 Solving Radical Equations with a Variable on One Side
::第10.5节 解决具有一面变量的激进等式Review
::回顾-
x
=
31
::x=31 x=31 -
x
=
3
::x=3x=3 -
x
=
-
4
::x=-4x=-4 -
x
=
7
::x=7x=7 -
x
=
10
::x=10x=10 -
x
=
61
::x=61x=61 -
x
=
6
::x=6x=6 -
x
=
37
::x=37x=37 -
x
=
87
::x=87x=87 -
x
=
120
::x=120x=120 -
x
=
74
::x=74x=74 -
x
=
390
::x=390 x=390
Explore More
::探索更多-
x
=
4
::x=4x=4 -
6 cm
::6厘米 6厘米 -
6 cm, h = 12
::6厘米, h = 12 -
1.5 in
::1.5英寸(1.5英寸) -
25 in
::25 英寸( 25 英寸) -
1.524 s
::1.524 秒
Section 10.6 Solving Radical Equations with Variables on Both Sides
::第10.6节 解决双方有变数的激进等式Review
::回顾-
x
=
7
::x=7x=7 -
x
=
33
::x=33x=33 -
x
=
3
::x=3x=3 -
x
=
6
,
x
=
10
::x=6,x=10 x=6,x=10 -
x
=
-
5
,
x
=
2
::x=5,x=2 x=5,x=2 -
x
=
2
,
x
=
3
::x=2,x=3 x=2,x=3 -
x
=
7
::x=7x=7 -
x
=
6
,
x
=
5
::x=6,x=5 x=6,x=5 -
x
=
2
,
x
=
-
2
,
x
=
-
1
::x=2,x=2,x=2,x=1 -
x
=
5
::x=5x=5 -
x
=
7
,
x
=
-
7
::x=7,x=7-7 -
x
=
5
::x=5x=5 -
x
=
64
::x=64x=64 -
x
=
5
::x=5x=5 -
x
=
11
::x=11x=11 -
x
=
32
::x=32x=32 -
x
=
100
::x=100x=100 -
x
=
70
::x=70x=70 -
x
=
175
::x=175x=175 -
x
=
56
+
4
√
97
9
::x=56+4979
Explore More
::探索更多-
Leg is 5, and hypotenuse is 13.
::腿是5, 下肢是13。 -
245 meters
::245米 -
4.2 nautical miles per hour
::4.2海里/小时每小时4.2海里 -
7.7 minutes
::7.7分钟 - 2003
Section 10.7 Graphing Square Root Functions
::第10.7节 平方根功能图Review
::回顾-
Domain: x ≥ - 2 ; Range: y ≥ 0 .
::域名: x-2; 范围: y0。 -
Domain: x ≥ 5 ; Range: y ≥ - 2 .
::域名: x% 5; 范围: y 2。 -
Domain: x ≥ - 1 ; Range: y ≤ 0 .
::域名: x-1; 范围: y0。 -
Domain: x ≥ 3 ; Range: y ≥ 1 .
::域 : x% 3; 范围 : y% 1 。 -
Domain: x ≥ - 8 ; Range: y ≥ 0 .
::域名: x-8; 范围: y0。 -
Domain: x ≥ - 6 ; Range: y ≥ 0 .
::域名: x-6; 范围: y0。 -
Domain: x ≤ 1 ; Range: y ≥ 0 .
::域名: x% 1; 范围: y% 0 。 -
Domain: x ≥ - 3 ; Range: y ≥ - 5 .
::域名: x-3; 范围: y-5。 -
Domain: x ≥ - 9 ; Range: y ≥ - 8 .
::域名: x-9; 范围: y-8。 -
Domain: x ≥ 3 ; Range: y ≤ 6 .
::域 : x% 3; 范围 : y# 6 -
Domain: x ≤ 5 ; Range: y ≤ 7 .
::域名: x% 5; 范围: y% 7 。 -
Domain: x ≤ 3 ; Range: y ≥ - 9 .
::域名: x3; 范围: y- 9。
Explore More
::探索更多-
a.
y
=
1.22
√
x
+
7
; b.
y
=
-
2
√
x
+
5
::a.y=1.22x+7;b.y=-2x+5 -
y
=
-
3
√
x
+
6
−
3
::y=-3x+6-3
Section 10.8 Graphing Cube Root Functions
::第10.8节 构造立方根功能Review
::回顾Explore More
::探索更多-
a.
y
=
3
√
x
−
3
; b.
y
=
-
3
√
x
+
2
+
1
::a.y=3x-3;b.y=3x+2+1 -
y
=
2
3
√
x
−
2
+
7
::y=23x-2+7
Section 10.9 Connections: Driving in the Rain
::第10.9节 连接:在雨中驾驶-
58.5 mph
::58.5百万平方英尺 -
18.9 PSI
::18.9 防扩散安全倡议 -
28.2 PSI
::28.2 防扩散安全倡议 -
39.4 PSI
::39.4 PSI -
56.7 mph
::56.7 百万分 -
54.8 mph
::54.8 百万平方英尺 -
dilation
::膨胀 -
Section 10.10 Connections: Tsunami Alert Systems
::第10.10节连接:海啸警报系统-
22.1 m/s; 44.3 m/s; 140 m/s; 198 m/s
::22.1米/秒; 44.3米/秒; 140米/秒; 198米/秒 -
-
49.5 mph; 99.2 mph; 313.6 mph; 443.52 mph
::49.5平方米;99.2平方米;313.6平方米;443.52平方米 -
just under 2.86 hours, just under 43 minutes
::不到2.86小时 不到43分钟 -
8.94 m
::8.94米