Answer:
Step-by-step explanation:
Which of the following are causes of coastal erosion? Check all that apply.
Beach grasses and other plants trap windblown sand.
Wave action carves away the coastline.
Groundwater under pressure is forced to Earth’s surface.
Artificial structures stop the natural flow of sand along the coast.
Underground caves collapse as bedrock is dissolved.
Answer:
slope of 0
Step-by-step explanation:
X squared+y=18
x+y=6. use elimination method.(+y and +y cancels
x squared -x=x
18-6=12
x=12
for y take one of the above equations
x+y=6(replace x with 12
12+y=6(collect the like terms
y=6-12
y=-6
so x=12 and y=-6
Answer:
p-value: 1.000
There is enough evidence at the 1% level of significance to suggest that the proportions are not equal.
Step-by-step explanation:
We will be conducting a difference of 2 proportions hypothesis test
The hypothesis for this test is:
H0: p1 - p2=0
Ha: p1 - p2 ≠0
(p1 ) = 252/300 = 0.84
(p2) = 195/300 = 0.65
This is a 2 tailed test with a significance level of 1%. So our critical values are: z > 2.575 and z < -2.575
See the attached photo for the calculations for this test
3x + 4(x + 1) = 67
7x + 4 = 67
7x = 67-4 = 63
x = 9
The smaller integer is 9.