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Burka [1]
3 years ago
5

Emma is building wall around

Mathematics
2 answers:
inessss [21]3 years ago
8 0
It will take 60 minutes, 1 hour
liq [111]3 years ago
8 0
Write and solve an equation of ratios:

75%       45 min
-------- = -----------
100%          x

75x = 4500, and x = 60 (minutes)
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A cat gave birth to 4 kittens. Three of the kittens had different masses between 147 and 159 kg and one kitten had a mass of 57k
Marizza181 [45]

Answer:

Both the mean and median will increase, but the mean will increase by more than the median.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Plzzzz somebody help me right away
Helen [10]

Well if you know what the area of the rectangle is and the width then you would have to divide area of the rectangle by the width.

24,396 / 38 = 642

The length is 642 centimeters.

Hope this helps!

5 0
3 years ago
The table below shows the surface area y in square inches, of a shrinking puddle in x hours
Kruka [31]
Part A
Correlation coefficient: -.99
This tells us that as time goes on (value of x increases) the area of the puddle goes down (value of y decreases)

Part B
y₂ - y₁
-------   = slope
x₂ - x₁
9 - 15
--------
5 - 8
-6/-3 = 2
So the slope equals -2, regardless of the fact that we got 2 as an answer there, we know that it is a negative slope 

Part C
The data represents causation because an increase in the value of x results in a decrease in the value of y, this shows an example of direct causation between x and y.
8 0
3 years ago
Read 2 more answers
An octagonal prism has jow many lateral faces?
larisa [96]

Answer:

The octagonal prism has 8 lateral faces

Step-by-step explanation:

we know that

The number of lateral faces is equal to the number of sides that the base has

In this problem

The base is a octagon (8 sides)

so

The octagonal prism has 8 lateral faces

5 0
2 years ago
A cylindrical water trough has a diameter of 6 feet and a height of 2 feet. It is being filled at the rate of 4 ft^3/min. How fa
viva [34]
Volume of Cylinder V = πr²h

diameter = 6 feet, radius = 6/2 = 3 feet

dV/dt =  (dV/dh) * (dh/dt)  by change rule.

V =  <span>πr²h

dV/dh =  </span>πr² = π*3² = 9π  ft²<span>

dV/dt = 2 ft</span>³/min

<span>dV/dt =  (dV/dh) * (dh/dt)
</span>
2 ft³/min = 9π ft²   * (dh/dt)

9π ft²   * (dh/dt) = 2 ft<span>³/min
</span>
(dh/dt) = (2 ft³/min)/(9π ft<span>²)   

(dh/dt) = (2/</span>9π)  ft/min

So the water level is rising at  (2/9<span>π)  ft/min.</span>
8 0
3 years ago
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