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just olya [345]
3 years ago
8

Marissa is walking along the beach and finds an unknown organism on the shore it has radical symmetry a nonporous surface and te

ntacles in which phylum can the organism be classified a.chordata b.Cnidaria c.echinodermata d.porifera
Mathematics
1 answer:
frozen [14]3 years ago
6 0
This is not math ? it’s physics or chem or bio or something
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Find the slope of the line on the graph
yulyashka [42]
Y=mx+b 
b= -2 
m= rise/run = 2/3 
y=2/3x-2
7 0
3 years ago
The equation a = 640s gives the relationship between s square miles and a acres. Pam owns 7.5 square miles of farmland. How many
stich3 [128]
Quantity of farmland owned by Pam = 7.5 square miles.
The other important information given in the question is the equation relating square miles and acres. Using that information, the answer to the question can be easily reached.
a = 640s
   = 640 * 7.5 acres
   = 4800 acres.
From the above deduction, we can conclude that the correct option among all the options that are given in the question is the third option or option "C".
5 0
3 years ago
Read 2 more answers
8. What expression is equivalent to 3y – 21?
disa [49]

3(y-7)

use distributive property

3 0
3 years ago
A teacher claims that the proportion of students expected to pass an exam is greater than 80%. To test this claim, the teacher a
erica [24]

Answer:

z=-1.591

Step-by-step explanation:

Null Hypotheses,

H_0 : p=0.8\\H_a: p>0.80

So we use z-test for one population proportion (right-tailed test)

According to this informaton, we defined that

\alpha=0.05

z_c=1.64 (critical value)

So our Rejection region is R={z:z>1.64}

z=\frac{\bar{p}-p_0}{\sqrt{p_0(1-p_0)/n}} = \frac{0.755-0.8}{\sqrt{0.8(1-0.8)/200}}=-1.591

Not rejection.

6 0
3 years ago
Add me on Playstation NathanTheSnail for 200 points! Please.
mars1129 [50]

Answer:

You aren't even giving 200 points.

Step-by-step explanation:

4 0
3 years ago
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