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wlad13 [49]
3 years ago
13

Answer question please

Mathematics
2 answers:
amm18123 years ago
7 0

Answer:

a 4.1833

b 7.656

hope its helpful

GREYUIT [131]3 years ago
3 0

Answer:

a) 4.18330013267

b) 7.65643191324

Step-by-step explanation:

Use the calculator to find out the values.

√17.5

=4.18330013267

2.3²+√5.6

5.29+2.36643191324

=7.65643191324

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Alice weighs 20 dogs and 20 cats. The mean weight for the dogs is 32kg and the mean weight for cats is 4kg. The range in weight
azamat

With the mean and range, we can estimate the weights of the smallest and largest animals in each group.

For cats the interval is [ 3.75kg, 4.25kg] and for dogs is [9.5kg, 54.5kg]

<h3>Which conclusions can be made with the given information?</h3>

We know that the mean weight for cats is 4kg, and the range (difference between the largest value and smallest value) is 0.5kg.

  • From that, we can conclude with some confidence (but not exactly), that the largest cat weights 4kg + 0.5kg/2 = 4.25kg
  • And the smallest cat weights 4kg - 0.5kg/2 = 3.75kg

(Assuming a normal distribution).

Similar for the dogs, the mean weight is 32kg and the range is 45kg, then:

  • The largest dog weights 32kg + 45kg/2 = 54.5kg
  • The smallest dog weights 32kg - 45kg/2 = 9.5kg

(again, assuming a normal distribution).

If you want to learn more about means and ranges:

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3 0
2 years ago
To ride your favorite roller coaster, you must be at least five feet tall but
AnnZ [28]

Answer:

5 ≤ h<7

Step-by-step explanation:

the rider has to be more than at least 5 feet tall, so h is greater than or equal to 5 (5 ≤ h), but they have to be less than 7 feet tall (h<7) so, therefore, we get 5 ≤ h<7

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3 years ago
What is the first step needed to solve 4 over 7 multiplied by x minus 5 equals negative 13? Subtract 13 from both sides Divide b
Varvara68 [4.7K]

Answer: C) add 5 to both sides

The given equation is

(4/7)x - 5 = -13

To solve this, we follow PEMDAS in reverse undoing each operation. Normally parenthesis is the first thing we look for, but instead we start with subtraction.

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Answer:

k = \frac{1}{2}

Step-by-step explanation:

Given

x 2 4 6 8

y 1 2 3 4

Required

Determine the constant of proportionality (k)

The relationship between x and y is:

y = kx

When y = 1, x = 2;

So, we have:

1 = k * 2

2 * k = 1

Make k the subject

k = \frac{1}{2}

Hence, the constant of proportionality is 1/2

7 0
3 years ago
serena buys 6 composition books and 6 pencils. Each composition book cost $3 and the total cost is $24. Which equation can you u
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Answer:

1$ a pencil

Step by Step:

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6 divided by 6 equals one dollar a pencil


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