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Rudiy27
3 years ago
7

Need help please!! i will mark brainliest to whoever answers correctly <33

Mathematics
1 answer:
sergij07 [2.7K]3 years ago
4 0

Answer:

x = -33

Step-by-step explanation:

To find the midpoint add the two points and divide by 2

(x+27)/2 = -3

Multiply each side by 2

(x+27)/2 *2= -3*2

x+27 = -6

Subtract 27 from each side

x+27-27 = -6 -27

x = -33

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alekssr [168]

Answer:

Amount of Niobium-91 initially

= 300/91 =3.2967mol

2040 years = 3 ×680 = 3 half-lives

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Please give brainliest

8 0
2 years ago
To complete this component you will need to insert parentheses in Expression 2 to change the order of operations so the expressi
Alika [10]

Given:

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To find:

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Step-by-step explanation:

We have,

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Now,

(5+4)\times 2+6-2\times 2-1=9\times 2+6-4-1

(5+4)\times 2+6-2\times 2-1=18+6-5

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There are more ways to apply the parenthesis, but we do not get 19.

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Therefore, the expression after inserting the parentheses is (5+4)\times 2+6-2\times 2-1.

6 0
3 years ago
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Slav-nsk [51]

Answer:

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Step-by-step explanation:

Step 1: Simplify both sides of the equation.

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