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soldier1979 [14.2K]
2 years ago
9

Evaluate the expression when a = 4, b=8 and c=12 4(a+b)-c​

Mathematics
1 answer:
a_sh-v [17]2 years ago
4 0

Answer:

36

Step-by-step explanation:

4(a+b)-c

4(4)+4(8)=16+32-12

48-12=36

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What is 5(n-1)=2(n-4)-6
Shalnov [3]

Answer:

Step-by-step explanation

6n - 6 = 2 (n+1)

Simplify 2 (n+1)

6n - 6= 2n +2

Move all terms related to n to the left side of the equation

4n -6 =2

Move all terms not related to n to the right side of the equation

4n =8

Divide each term by 4 then simplify

n=2  

5 0
3 years ago
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Can someone help me with this question?
Masteriza [31]

Answer:

V=2c

Step-by-step explanation:

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6 0
3 years ago
Find the sum of deviation of all observations of the data 5, 8, 10, 15, 22 from their mean.​
ivann1987 [24]

Answer:

the sum of deviation of all observations of the data 5, 8, 10, 15, 22 from their mean. =26

Step-by-step explanation:

Mean=sum of observation/ No. of observation

={5+8+ 10+ 15 + 22}/5

=60/5=12

Sum of deviations

= |5- 12| + |8 – 12| + |10- 12| + |15- 12| + |22-12|

= 7+4+2+ 3+ 10

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3 0
2 years ago
An airplane takes off from the ground and reaches a height of 500 feet after flying 2 miles. given the formula h = d tan θ, wher
zloy xaker [14]

Height covered by the plane=h= 500 feet

Distance covered by the plane along the ground=d= 2 mile

Now, convert the mile into feet,

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2 mile = 10560 feet

Now, use the formula

h= d tanθ

tanθ= h/d

tanθ= 500/10560

tanθ= 25/528

Take the tan⁻¹ on both side,

θ= tan⁻¹(25/528)

θ =2.71°



5 0
3 years ago
10% of Glen's coins are from Denmark. If he has 11 coins from Denmark, how many
denis23 [38]

Answer:

9

Step-by-step explanation:

7 0
3 years ago
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