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Anastasy [175]
2 years ago
13

Translate the following sentence into an equation using n to represent the unknown number. Then solve the equation for n.

Mathematics
1 answer:
Lena [83]2 years ago
5 0

Answer:

n=5

Step-by-step explanation:

6 + 2n =16

2n÷2= 10÷2

n = 5

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17. The perimeter of rectangle RPQT is 134dm.
Rina8888 [55]

Answer:

\sf 1092 \: dm^2

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6 0
2 years ago
Find an expression for the perimeter of rectangle ABCD. Use the formula P= 2l + 2w.
natita [175]

Answer:

(b)

P = [4(4a + 3b]/(2a + b)

Step-by-step explanation:

P = 2L + 2W

P = [2(5a + 4b) + 2(3a + 2b)]/(2a + b)

P = [10a + 8b + 6a + 4b]/(2a + b)

P = [16a + 12b]/(2a + b)

P = [4(4a + 3b]/(2a + b)

3 0
3 years ago
Prove the following identity true. Show work.
yulyashka [42]

Answer:

The  Pythagorean identity states that

\sin^2 t + \cos^2 t = 1

Using that we can rewrite the left denominator as:

1 - \sin^2 t

Which can be factored as

(1 - \sin t)(1+ \sin t)

The numerator we can expand as:

(1 - \sin t)(1 - \sin t)

On the right hand side, let's multply numerator and denominator with (1 - sin t):

The total formula then becomes:

\dfrac{(1-\sin t)(1-\sin t)}{(1 - \sin t)(1 + \sin t)} = \dfrac{(1-\sin t)(1 - \sin t)}{(1+\sin t)(1 - \sin t)}

There you go... left and right are equal.

3 0
3 years ago
Read 2 more answers
Sandra has $30 to spend at a carnival. Parking costs $6.00 and each ride ticket costs
andrew11 [14]

Answer:

(30-6) ÷1.25

Step-by-step explanation:

30-6=24

|

24÷1.25=19.2

↓

you round that and you get 19

6 0
3 years ago
6= square root of x+ 1
blondinia [14]
I'm going to answer this as a process going down:
√x+1=6       The statement
x+1=6²        Move the sqrt to the other side
x=6²-1         As well as the +1
x=36-1        Simplified the equation
x=35           Final answer
8 0
2 years ago
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