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Hunter-Best [27]
3 years ago
14

6. Which expression is equivalent to -21 + 28x? *

Mathematics
1 answer:
ollegr [7]3 years ago
7 0

Answer:

21/28

Step-by-step explanation:

Are there any answer choices?

-21 + 28x = 0

28x = 21

Divide by 28

x = 21/28

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What is the area of this figure?
Furkat [3]

Answer:

416

Step-by-step explanation:

since this is a trapezoid, you would calculate the area by the formula

(a+b )h/2 where h is the height and a and b are the 2 bases

When you plug the values in you get the answer as 416

Hope this Helps!

7 0
3 years ago
Resolva pelo método da adição:<br> {2x + 3y = 26<br> {3x + 2y =19
Lynna [10]

(6x+9y=78) - (6x+4y=38) = (5y=40) = y=8

(2x+3(8)=26) = (2x+24=26) = (2x=2) = x=2


5 0
3 years ago
Evaluate the expression t-6/4 for t =38
Finger [1]

Answer:

Exact Form:

73  over 2

Decimal Form:

36.5

Mixed Number Form:

36   1 over 2

Step-by-step explanation:

Substitute the value of the variable into the equation and simplify.

8 0
3 years ago
Lionfish are considered an invasive species, with an annual growth rate of 67%. A scientist estimates there are 8,000 lionfish i
natita [175]

<em>Answer:</em>

<em>There would be 173,535 lionfish after 6 years.</em>

<em>Step-by-step explanation:</em>

<em>Since lionfish are considered an invasive species, with an annual growth rate of 67%, ya scientist estimates there are 8,000 lionfish in a certain bay after the first year, A) to write the explicit equation for f (n) that represents the number of lionfish in the bay after n years; B) determine how many lionfish will be in the bay after 6 years; and C) if scientists remove 1,200 fish per year from the bay after the first year, determine what is the recursive equation for f (n); the following calculations must be performed:</em>

<em></em>

<em>A)</em>

<em>8000 x 1.67 ^ n = f  </em>

<em>B)</em>

<em>8000 x 1.67 ^ 6 = X</em>

<em>8000 x 21.691961596369 = X</em>

<em>173,535.692770952 = X  </em>

<em>C)</em>

<em>(8000 - 1200 x 1 ^ n) x 1.67 ^ n = f</em>

<em>Therefore, there would be 173,535 lionfish after 6 years.</em>

5 0
2 years ago
Find ten rational numbers between -2/3 and 2/3
Mama L [17]

Answer:

-2/3= -20/30

2/3 = 20/30

so rational numbers in between are

-19/30, -18/30, -17/30,........ -1/30, 0,+1/30,.............+17/30, +18/30, +19/30

so you can write as many as you like

8 0
3 years ago
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