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JulijaS [17]
3 years ago
7

A system of equations is show below

Mathematics
2 answers:
svetlana [45]3 years ago
6 0

yes it is true I have send u photo plz have a look

hichkok12 [17]3 years ago
4 0
-6 is x, and 8 is y

5x + 3y=-6
5(-6) + 3(8)=-6
-30 + 24=-6
^^true

2x+y=-4
2(-6)+8=-4
-12+8=-4
^^true

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The 18 faculty members in a college math department range in age from 32 to 68. A stem plot follows: The first and third quartil
valentina_108 [34]

Answer:

Q_{1}=39, \:and\: Q_{3}=58

Step-by-step explanation:

1) This Stem and Leaf plot works like a Histogram. Completing the question, check below the Stem plot. Look the data out of the Stem plot and within (in the graph below)

32, 34 , 38 , 39 , 39 , 40 , 43 , 45 , 46 , 49 , 53 , 54 , 57 , 58 , 59 , 59 , 63 , 68

2) Notice how the first digit is on the Stem column (check below)

3) To find the first and Third Quartiles

Let's use the formulas to find the position, then the value. As it follows:

Q_3=\frac{3}{4}(n+1) \Rightarrow  Q_3=\frac{3}{4}(18+1) Q_3=14.25 \approx14th =58

Q_1=\frac{(n+1)}{4} \Rightarrow Q_1=4.75 th \approx Q_1 =5th =39

4 0
3 years ago
Daniel had 7 3/5 qt of strawberries.He used 1/2of that amount to make jam . How many quarts did he have left?
Georgia [21]

Answer:

3 4/5

Step-by-step explanation:

7 3/5=38/5

38/5 divided by 2 = 19/5

19/5=3 4/5

6 0
3 years ago
Simplify<br> (-4-8i)-(-1-3i)
AfilCa [17]
3 - 2i is the answer .
8 0
3 years ago
I dont understand<br> help please!!!
shutvik [7]
Answer: I

Why?
(A-p)/p= I
6 0
3 years ago
Solve the equation. 4n−18=52
Margaret [11]
How to solve this: (in case you need it)
4n-18=52
4n-18+18=52+18
4n=70
4n/4=70/4
n=35/2
6 0
3 years ago
Read 2 more answers
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