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djyliett [7]
4 years ago
15

What is the value of the first quartile, (Q1)? A .5 B 3.5 C 2.25 D 1.5

Mathematics
1 answer:
Oduvanchick [21]4 years ago
8 0
We have
0.5, 1.5, 2.25, 3.0, 3.5
then the median is 2.25, we have the two halves:
<span>h1 = 0.5, 1.5
</span>h2 = <span>3.0, 3.5
</span>so the first quartile, Q1 is the median of the lower half of the data:
Q1 = (0.5 + 1.5)/2
Q1 = 1

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6x-42x<br><br>will give brainliest!!!
scoray [572]
<span><span>Step by step :

6x</span>−<span>42x</span></span><span>
=<span><span><span>6x</span>+</span>−<span>42x</span></span></span>
<span>=<span><span>6x</span>+<span>−<span>42x</span></span></span></span><span>
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Hoped I helped!
4 0
3 years ago
Read 2 more answers
Suppose the demand for a certain item is given by:
Marysya12 [62]

Answer:

a. D'(p) = -10p - 6

b. There is a decrease of 96 units of demand for each dollar increase

Step-by-step explanation:

The demand function is:

D(p) = - 5p^2-6p+400

(a) The derivate of the demand function with respect to price gives us the rate of change of demand:

\frac{dD(p)}{dp}=D'(p) = -10p-6

(b) When p = $9, the rate of change of demand is:

D'(9) = -10*9-6\\D'(9) = -96\ \frac{units}{\$}

This means that, when p = $9,  there is a decrease of 96 units of demand for each dollar increase.

6 0
3 years ago
there are 13 animals in a barn. some are ducks and some are pigs. there are 40 legs in all. how many of each animal are there?
konstantin123 [22]
Let X be chickens
Let Y be pigs,
then x+y=13
the animals have 2x+4y legs,
 so 2x+4y=40
The system of the equations
[X+y=13
[2x+4y=40
Divide the second equation by 2
[x+y=13
[x+2y=20
subtract the first equation from the second one
y=20-13
y-7 pigs
substitute y=7 into the first equation
x+7=13
x=13-7
x=6 chickens
6 0
3 years ago
True or false:
Alinara [238K]
1.true
2.true
3.because it supposed to be 4 sides like a rhombus
I’m not sure if they are right
8 0
4 years ago
How do you convert euros to Mexican pesos in part b ii
Rashid [163]
The answer is:  0.69 EUR : 15 MEX ;  or 0.046 (EUR: MEX)  .
____________________________________________________
  
 Note:  0.69 EUR: 15 MEX = 0.69 EUR / 15 MEX =
                                               (0.69 ÷ 15)  EUR: MEX
                                          =  0.046  EUR: MEX
______________________________________________________

5 0
3 years ago
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