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Paul [167]
3 years ago
9

Someone help plz? Will mark brainiest!

Mathematics
1 answer:
Alex3 years ago
4 0
2. (a+b)²=a²+2ab+b²
(5x-2)²=(5x)²-2×5x×2+2²
(5x-2)²=25x²-20x+4

4. (a+b)²=a²+2ab+b²
(2x+5)²=(2x)²+2×2x×5+5²
(2x+5)²=4x²+20x+25
∵a=4, b=20, c=25
∴a+b+c=4+20+25=49

Hope my answer helped u :)
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Julia used absolute value to find the distance between 0 and 6 on a number line. She then wrote a similar statement to represent
Schach [20]

Answer:

Absolute value function.    

Step-by-step explanation:

  • The absolute value of a number helps us to calculate the distance between a number and zero, provided the direction does not play an important role.
  • The absolute value of a number can never be negative since it is the value of distance.
  • The absolute value function is defined as:

\mid a \mid = a, a > 0\\~~~~~ = -a, a < 0

So, it is correct to write the statement that distance between 0 and 6 is equal to distance between 0 and -6.

\mid 6 \mid = 6\\\mid -6 \mid = -(-6) = 6

6 0
4 years ago
WILL GIVE BRAINLIEST
Oksanka [162]
I took the quiz the answer is A,B,D,E
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4 0
3 years ago
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a living room is 18ft by 14ft wide on a scale drawing for the house the living room is 3.5 in long how wide is the living room i
dalvyx [7]
18/3.5=5.1 so you do 14/5.1=2.7

so your answer is 2.7 in
5 0
4 years ago
If 8% tip is given on a dinner bill, and the tip amount was $13.50, how much was the dinner bill after the tip was added?
Nina [5.8K]

Answer: $14.58

Step-by-step explanation: 8% of $13.50 is $1.08 so $1.08 + $13.50 = $14.58

8 0
3 years ago
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A dress that is size x in France is equaivalent to size​ d(x) in the United​ States, where ​d(x)x32.
kobusy [5.1K]

Answer:

(a)\ d'(x) = x + 32 i.e. The inverse function

(b)\ d'(10) = 42 i.e. The French size of a dress if it is U.S. size 10 is 42.

Step-by-step explanation:

Given

d(x) = x - 32

Solving (a): The inverse function

d(x) = x - 32

Replace d(x) with y

y = x - 32

Swap y and x

x = y - 32

Make y the subject

y = x + 32

Replace y with d'(x)

d'(x) = x + 32

Hence, the inverse function is: d'(x) = x + 32

Solving (b): US size of 10

d'(x) = x + 32

Substitute x  =10

d'(10) = 10 + 32

d'(10) = 42

4 0
3 years ago
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