Answer:
1) Trepzoid
2) Hexagon
Explanation:
A two-dimensional shape is rotated to form the solid object shown in the figure. This two-dimensional shape can be created by rotating a <u>trapzoid</u> about its base. Another two-dimensional shape that can give this shape is a <u>hexagon</u> rotated about a line joining two opposite vertices.
Trapzoid: It is figure whose two sides are parallel and other two sides are non-parallel. Please take a look attachment for trapzoid. If we rotate trapzoid with longer parallel side we will get same 3-D figure as shown in diagram.
hexagon: It is polygon which has six sides. If we rotate hexagon with their opposite vertices. we will get same 3-D figure as shown in diagram. Please see the attach file.
2.) 6k - 9
*can't see #3*
4.) -9p + 17
5.) -15b^2 - 1b + 6c
6.) -4j
Answer:
Recall the Triangle Angle Sum Theorem
Step-by-step explanation:
Answer:
1.) Yes, because the x distribution is mound-shaped and symmetric and σ is unknown. ;
df = 24 ;
H0 : μ = 8.5
H1 : μ ≠ 8.5 ;
1.250 ;
At the α = 0.05 level, we fail to reject the null hypothesis and conclude the data are not statistically significant.
There is insufficient evidence at the 0.05 level to reject the null hypothesis.
Step-by-step explanation:
Given :
Sample size, n = 25
xbar = 9 ; Standard deviation, s = 2
α = 0.05 ;
The degree of freedom, df = n - 1 ; 25 - 1 = 24
The hypothesis (two tailed)
H0 : μ = 8.5
H1 : μ ≠ 8.5
The test statistic :
(xbar - μ) ÷ (s/√(n))
(9 - 8.5) ÷ (2/√(25))
0.5 / 0.4
Test statistic = 1.250
The Pvalue from Tscore ;
Pvalue(1.250, 24) = 0.2234
Pvalue > α ; We fail to reject H0 ;
