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Vladimir79 [104]
2 years ago
9

Find the two correct values of x in the equation 3x² = y when y = 75.​

Mathematics
1 answer:
valentina_108 [34]2 years ago
3 0

Answer:

5 and -5

Step-by-step explanation:

3x² = 75

x² = 75/3

x² = √25

x = 5 and - 5

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The base sales tax rate in Florida is 6%,
Slav-nsk [51]

Answer:

$18.43

Step-by-step explanation:

19.61 decrease 6% =

19.61 × (1 - 6%) = 19.61 × (1 - 0.06) = 18.4334

5 0
3 years ago
4. If f(x) = |2x - 4 find f(-7)<br> a.-18<br> b. 18<br> d. 10
bezimeni [28]

Answer:

Answer is a

Step-by-step explanation:

4 0
3 years ago
What is the slope of a line perpendicular to line 6x + 3y = 15
NISA [10]

Step-by-step explanation:

Given line is 6x+3y=15

Slope of the given line (m)=-x/y

=-6/3

=-2

let slope of the line perpendicular to the given line be m'.

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m×m'=-1

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8 0
3 years ago
If Upper A equals StartSet x | x is an even integer EndSet commaA={x | x is an even integer}, Upper B equals StartSet x | x is a
White raven [17]

Answer:

C ∪ D = {2, 3, 4, 5, 8, 9, 10, 11}

Step-by-step explanation:

A={x | x is an even integer}

B={x | x is an odd integer},

C={2, 3, 4, 5},

D={8, 9, 10, 11}.

A union of two or more sets is the collection of the members of the sets in a set without repeating any element.

Given sets C and D above, the union of the two sets is the set:

C ∪ D = {2, 3, 4, 5, 8, 9, 10, 11}

Note: The Intersection is the collection of sets that are common to C and D. in this case no element is common, therefore the intersection is a Null Set.

8 0
3 years ago
Sorry it doesn’t go bigger but please help.
Yanka [14]
This is an arithmetic sequence (graph is a line), so function:

a(n) = First term + (n-1) * Common Difference

Here First term = 42 and Common difference = 34 - 36 = -2 so

a(n)=42+(n-1)\cdot(-2)\\\\\boxed{a(n)=42-(n-1)\cdot2}

Answer B.
5 0
3 years ago
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