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lara [203]
2 years ago
12

A set of three scores consists of the values 3, 7, and 2. Σ2(X – 3) =

Mathematics
1 answer:
siniylev [52]2 years ago
5 0

Answer:

6

Step-by-step explanation:

\sum 2(X-3)=2(3-3)+2(7-3)+2(2-3)=0+8-2=6

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Twice the sum of a number and 5 is equal to three times the difference of the number and 3. Find the number.
Volgvan

let x be the number

2(x+5)= ±3(x-3)

2x+10= 3x-9 or 2x+10= -3x+9

x=19 or x=0.2

8 0
3 years ago
Samson bought 5 cartons that each have 20 strawberries. She already had 100 strawberries. If she then sells 100 strawberries, ho
pantera1 [17]

Answer:

100

Step-by-step explanation:

so you do 5 times 20 gives to 100 plus the 100 that she has is 200 and she sells 100 so you get 100 strawberries left

Hope this helped out jasmine.

5 0
3 years ago
Khaliq produces and sells toy cars. The material for each car costs him $4. He has been selling them for $8 each and averaging s
mylen [45]

Answer:

He should charge 8.50 for each car for a profit of 162 dollars.

Step-by-step explanation:

Plot y = (x - 4)(40 - 8(x - 8)) on a graphing calculator such as desmos

7 0
3 years ago
What value of x will make this proportion true 14/x = 1/2 a 7 b 18 c 24 d 28
iris [78.8K]
The answer is D. 28, 14/28 = 1/2.
Hope this helps:)
5 0
3 years ago
Which of the following describes the graph of y=\sqrt[3]{8x-64}-5 compared to the parent cube root function?
andriy [413]
Answer: stretched by a factor of 2 and translated 8 units right and 5 units down

Explanation:

These is the set of choices that accompany with this question:


<span>a) stretched by a factor of 2 and translated 64 units right and 5 units down
b) stretched by a factor of 8 and translated 8 units right and 5 units down
c) stretched by a factor of 2 and translated 8 units right and 5 units down
d) stretched by a factor of 8 and translated 64 units right and 5 units down


Solution:

</span>Let's work a little the given function to compare it with the parent function.

1) The given function is y = ∛[8x - 64] - 5

2) Extract common factor 8 of the expression inside the square brackets:

y = ∛[ 8( x - 8) ] - 5

3) Extract 8 from the root:

y = 2∛(x - 8) - 5

4) The parent function is ∛x. Call the parent function g(x) => g(x) = ∛x

5) Compare: y is 2 * g(x - 8) - 5

6) Analyze the meaning of that:

g(x - 8) means that the graph of the function is translated 8 units to the right

scaling by 2 means that the graph is stretch vertically (by a scale factor of 2)

- 5 means that the entire graph is shifted 5 units downward.

So, the description of the graph y = ∛(8x - 64) - 5 compared to the parent cube root function is: stretched by a factor of 2 and translated 8 units right and 5 units down


5 0
4 years ago
Read 2 more answers
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