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Vikentia [17]
3 years ago
6

URGENT DUE BY 3:30 FOR A HUGE GRADE WILL RATE GOOD:)

Mathematics
1 answer:
mariarad [96]3 years ago
4 0

A = L x W

20 x 20 = 400.

400 x 8 = 3200

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) Which Measure of Central Tendency ALWAYS splits the data into a lower half and upper half?
pishuonlain [190]

Answer:

median

Step-by-step explanation:

i took the quiz for mr. lewis

7 0
3 years ago
In a recent international sport competition, the top 3 countries— Country A, Country B, and Country C— won a total of 134 medals
vlada-n [284]

Answer:

Country A = 85, Country B = 29, Country C = 20

Step-by-step explanation:

A+B+C=134 ----- eq(1)

B=C+9 ------------ eq(2)

A=36+B+C ------ eq(3)

By substituting eq(2) in eq(3), we get:

A=36+C+9+C

A=2C+45 ------- eq(4)

Now substituting eq(2) & eq(4) in eq(1), we get

2C+45+C+9+C=134

4C+54=134

4C=134-54

4C=80

C=20

Now putting the value of C in eq(2),

B=20+9

B=29

Substituting the value of B & C in eq(1), we get:

A+29+20=134

A+49=134

A=134-49

A=85

6 0
3 years ago
The sum of two numbers is 3.1. Twice the large number is 7 more than 3 times the smaller number. What are the numbers?
Degger [83]

Let the two numbers be x and y where x is greater than y.

So;

x + y = 3.1 ... (i)

2x - 3y = 7 ... (ii)

This forms a set of simultaneous equations (i) and (ii)

Solving the simultaneous equations by elimination;

We multiply (i) by 2 and (ii)  by 1 to get:

2x + 2y = 6.2 ... (i)

2x - 3y = 7 ... (ii)

Subtracting (i) - (ii) we get;

5y = -0.8

y = -0.8/5 = -0.16

x = 3.1 - -0.16 = 3.26

The numbers are 3.26 and -0.16.


7 0
3 years ago
What is the solution of the equation (x – 5)2 + 3(x – 5) + 9 = 0? Use u substitution and the quadratic formula to solve.
Sophie [7]
(x – 5)²<span> + 3(x – 5) + 9 = 0

x</span>² - 10x + 25 + 3x - 15 + 9 = 0

x² - 7x - 16 = 0

x =  \frac{7 +  \sqrt{(-7)^2-4(1)(-16)} }{2} or x = \frac{7 - \sqrt{(-7)^2-4(1)(-16)} }{2} 

x =  \frac{7 + 3i \sqrt{3} }{2} or x = \frac{7 - 3i \sqrt{3} }{2} 

(Answer B)
7 0
2 years ago
Read 2 more answers
Pls help asap ill give brainliest!
Nitella [24]

The answer is x=-17

4 0
3 years ago
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