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steposvetlana [31]
3 years ago
13

Please help me solve this problem with step by step explanation.​

Mathematics
1 answer:
Kisachek [45]3 years ago
3 0

Answer:

Im not rally sure but maybe 5.71 , here is my explanation :

Step-by-step explanation:

Tan 55 =x/4

tan 55 = 1/42814

1/42814 = x /4

×=5.712592027 .

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X = -2y + 300 3y = 800 - 4x
devlian [24]

Answer:

<h2>x = 140, y = 80</h2>

Step-by-step explanation:

\left\{\begin{array}{ccc}x=-2y+300&(1)\\3y=800-4x&(2)\end{array}\right\\\\\text{Substitute (1) to (2):}\\\\3y=800-4(-2y+300)\qquad\text{use the distributive property:}\ a(b+c)=ab+ac\\\\3y=800+(-4)(-2y)+(-4)(300)\\\\3y=800+8y-1200\\\\3y=8y-400\qquad\text{subtract}\ 8y\ \text{from both sides}\\\\-5y=-400\qquad\text{divide both sides by (-5)}\\\\y=80\\\\\text{Put it to (1):}\\\\x=-2(80)+300\\\\x=-160+300\\\\x=140

8 0
3 years ago
Read 2 more answers
Consider the arithmetic sequence:
prisoha [69]

Answer:

<em>Answer: D</em>

Step-by-step explanation:

<u>Arithmetic Sequences </u>

The arithmetic sequences are those where any term n is obtained by adding or subtracting a fixed number to the previous term. That number is called the common difference.

The equation to calculate the nth term of an arithmetic sequence is:

a_n=a_1+(n-1)r

Where

an = nth term

a1 = first term

r   = common difference

n  = number of the term

We are given the arithmetic sequence:

10, 12, 14, 16, ...

Where a1=10 and

r = 12 - 10 = 2

Thus the general term is:

a_n=10+(n-1)2

Operating:

a_n=10+2n-2

a_n=8+2n

Answer: D

4 0
3 years ago
Read 2 more answers
Solve x^2 + 2x + 9 = 0... Will Givee Brainliesttt
AlekseyPX

Answer

- 1 + 2i \sqrt{2}

- 1  - 2i \sqrt{2}

4 0
3 years ago
A school has 7 buses. each bus has 40 seats. fill in the missing numbers to find the total number of seats on the 7 buses
OleMash [197]
The answer for this question is 280 

7 0
3 years ago
Which number is irrational? <br><br> A. 0.06¯¯¯¯ <br> B. 49−−√ <br> C. 1/6 <br> D. 17−−√
mars1129 [50]
Sqrt(17), if I'm reading that right. A is a repeating decimal, so it can be simplified into a fraction, sqrt 49 = 7, and 1/6 is in itself a fraction!

D :D
5 0
3 years ago
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