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yarga [219]
3 years ago
9

Why is convenience sampling biased? a. It takes too long to obtain b. none of the above c. The sample does not represent the pop

ulation d. is too easy
Mathematics
2 answers:
salantis [7]3 years ago
7 0

Answer:

A)

Step-by-step explanation:

arlik [135]3 years ago
5 0

Answer:

A

Step-by-step explanation:

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Javier has a model of a cone with a radius of 3 inches and a height of 10 inches. Javier increased his model’s volume by doublin
statuscvo [17]

Answer:

240 \pi\ in^{3}

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its volumes is equal to the scale factor elevated to the cube

Let

z------> the scale factor

x-----> the volume of the larger cone

y-----> the volume of the original cone

z^{3}=\frac{x}{y}

In this problem we have

z=2 -----> scale factor

substitute

2^{3}=\frac{x}{y}

8=\frac{x}{y}

x=8y

That means-----> The volume of the larger cone is  8 times the volume of the original cone

Find the volume of the original cone

V=\frac{1}{3}\pi r^{2} h

we have

r=3\ in

h=10\ in

substitute

V=\frac{1}{3}\pi (3^{2})(10)=30 \pi\ in^{3}

therefore

The volume of the larger cone is equal to

8*30 \pi\ in^{3}=240 \pi\ in^{3}

3 0
3 years ago
Read 2 more answers
392 x 22 but in a reciprocal answer I only have 10 minutes!!
Paladinen [302]

your answer is 0.00011596

4 0
3 years ago
Point D(-3.5) is a vertex of triangle DEF.After a rotation of the triangle about the origin, D' is located at (3,-5).Which of th
Nimfa-mama [501]
<h3>Answer: 180 degrees</h3>

note: it doesn't matter if its clockwise or counterclockwise when it comes to 180 degree rotations.

========================================

Explanation:

The rule for 180 degree rotations is

(x,y) ---> (-x, -y)

So the x and y coordinates flip in sign from positive to negative, or vice versa.

Point D ' (-3, 5) rotates to D ' (3, -5) following this rule

-----------------

A further detailed break down might look like this

x = -3 becomes -x = -(-3) = 3

y = 5 becomes -y = -5

(-3, 5) ----> (3, -5)

6 0
4 years ago
Please help thx a bunch
kirza4 [7]
A.
2/3A=-24
time both sides by 3/2
A=-72/2
A=-36

B.
20=-B/0.2
times both sides by 0.2
4=-B
times -1
-4=B


distance between 2 points x and y is |x-y|

so
distance between A and B is distance between -4 and -72 or
|-72-(-4)|=|-72+4|=|-68|=68
the distance is 68
4 0
3 years ago
there are 3 black marbles in and 4 red marbles in a bag. what is the probability that you will pick two black marbles put of the
professor190 [17]

|\Omega|=7\cdot6=42\\ |A|=3\cdot2=6\\\\ P(A)=\dfrac{6}{42}=\dfrac{1}{7}\approx14\%

5 0
3 years ago
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