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Rama09 [41]
3 years ago
7

Asher is pet sitting for 1/5 dogs. He only has of a bag of dog food left for the day. If each dog gets the same amount, what fra

ction of the bag will each dog get?
Mathematics
1 answer:
k0ka [10]3 years ago
7 0

Answer:

s

Step-by-step explanation:

physical attributesphysical attributesphysical attributesphysical attributesphysical attributesphysical attributesphysical

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Fifty randomly selected individuals were timed completing a tax form. the sample mean was 23.6 minutes; the sample standard devi
VLD [36.1K]
Given:
n = 50, sample size
\bar{x} = 23.6 \, min, sample mean
s = 2.4 min, sample standard deviation.

The confidence interval is
\bar{x} \pm t^{*} \frac{s}{ \sqrt{n} }

At the 99% confidence level, t* (from the student's t-distribution) is 
t* = 2.68
Therefore
t*(s/√n) = 2.68*(2.4/√50) = 0.9096

The confidence interval is
(23.6-0.9096, 23.6+0.9096) ≈ (22.69, 24.51)

Answer: (22.7, 24.5)

5 0
3 years ago
Three corners of a city bloc is located at (2,2) (2,-4) (-5,-4) on a coordinate plane what are the coordinates of the fourth cor
AleksandrR [38]

Answer:

(-5, 2)

Step-by-step explanation:

Three corners of a rectangular city block are located at (2,2), (2,-4) and (-5,-4) on a coordinate plane. What are the coordinates of the fourth Coordinate?

Solution:

A rectangle is a quadrilateral (has four sides and four angles) in which opposite sides are equal and parallel. Also, all the angles are at 90 degrees.

Since the city block is rectangular in shape, therefore the fourth coordinate would have the same y coordinate as the point (2, 2) and it would also have the same x coordinate as (-5, -4).

Hence the fourth coordinate is (-5, 2)

4 0
3 years ago
What are two angles within 0°-360° that has a cosine of negative root three over 2? Show work please
alekssr [168]

Answer:

150° and 210°

Step-by-step explanation:

1) according to the condition the required cosine is <0, it means the required angles are in the II-d and III-d quaters (see the attached picture no. 1);

2) it is known, that arccos(√3/2)=30°- the angle is between 0° and 90°, - but the requred angles are between 90° and 270° (see the picture no. 2), then

3) (angle)₁=180°-arccos(√3/2) and (angle)₂=180°+arccos(√3/2), then finally

(angle)₁=180°-30°=150°; (angle)₂=180°+30°=210°.

PS. note, the suggested way is not the only one.

6 0
3 years ago
Cell phones can weigh as little as 56 grams. How many kilograms can the cell phone weigh
Svet_ta [14]

Answer:

0.056

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
X^2-8xy+16y^2 factor completely
kicyunya [14]
Neato
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what 2 numbers multiply to get 16 and add to get -8
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(x-4y)(x-4y)
(x-4y)²
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4 years ago
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