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bogdanovich [222]
4 years ago
14

Enter the number that belongs in the green box.

Mathematics
2 answers:
lilavasa [31]4 years ago
5 0

the answer is 12.8 because

both of these equations added together make a straight line, or 180 degrees

so we have to put them together: 7x+8x-12=180

and we just solve for x

inna [77]4 years ago
4 0
7x=8x-12
7x+12=8x
12=x
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T=√k(k-b)(k-m).... make b the subject of the formula​
Liono4ka [1.6K]

Answer:

b = -T²/k(k-m)  + k

Step-by-step explanation:

Given the equation T =√k(k-b)(k-m), we are to make b the subject of the formula​

Square both sides

T² = (√k(k-b)(k-m))²

T² = k(k-b)(k-m)

T²/k(k-m) = k-b

Rearrange

k - b = T²/k(k-m)

b - k = - T²/k(k-m)

Add j=k to both sides

b - k + k = - T²/k(k-m)  + k

b = -T²/k(k-m)  + k

This gives the required expression

5 0
3 years ago
Peter bought 8 lemons for 6 dollar Each lemon was the same price. What was the cost for 1 lemon?
d1i1m1o1n [39]

Answer:

1.33

Step-by-step explanation:

8/6 = 1.33

6 0
3 years ago
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Point M is the midpoint of AB. The coordinates of point A are (-8, 3) and the coordinates of M are (-2, 1). What are the coordin
ch4aika [34]

Answer:

the coordinates of point B are (-5, 2)

Step-by-step explanation:

1. use midpoint formula to find the midpoint (equation attached below)

2. plug in the numbers

(\frac{-8+(-2)}{2},\frac{3+1}{2})

3. solve

(\frac{-8-2)}{2},\frac{3+1}{2})

(\frac{-10}{2},\frac{4}{2})

(-5,2})

4 0
3 years ago
100x+300y=1.200<br> (2/3x+10)/100=(y+20)/300
AlexFokin [52]

Answer:

x= -4.284 and y= 1.432

Step-by-step explanation:

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3 years ago
Estimate the answer 34 × 89
tekilochka [14]
Round 34 to 30 and round 89 to 90. Multiply 30 and 90 which equals to 2700.
8 0
3 years ago
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