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3 years ago

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Solve the triangle. Round your answers to the nearest tenth. law of sines 7 A. m∠A=48, m∠B=50, a=23 B. m∠A=48, m∠B=50, a=26 C. m

∠A=43, m∠B=55, a=16 D. m∠A=43, m∠B=55, a=20

1 answer:

Anit [1.1K]3 years ago

6 0

Answer:

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Can someone help me with this?

Anna35 [415]

Answer:

Let 'a' be the first term, 'r' be the common ratio and 'n' be the number of terms

Series = 2+6+18.......= 2+2•3¹+ 2•3².......= 728

Now,

$Sum = \frac{a( {r}^{n} - 1) }{(r - 1)} \\$

So,

$\frac{a( {r}^{n} - 1)}{(r - 1)} = 728 \\ \frac{2( {3}^{n} - 1) }{(3 - 1)} = 728 \\ \frac{2( {3}^{n} - 1) }{2} = 728 \\ {3}^{n} - 1 = 728 \\ {3}^{n}=728+1\\ {3}^{n} = 729 \\ {3}^{n} = {3}^{6} \\ \boxed{ n = 6}$

Therefore, number of terms is 6

6 is the right answer.

3 0

3 years ago

The next number in the arithmetic sequence 15, 22, 29, is: <br><br>A) 34<br>B) 35<br>C) 36<br>D) 37

harkovskaia [24]

ANSWER: C) 36
EXPLANATION: +7 is the sequence

4 0

2 years ago

Identify the quadratic term in the function.<br><br>f(x)=2x2−3x+5<br>

Vadim26 [7]

Answer:

2x2-3x-5=0

Step-by-step explanation:

(2x2 - 3x) - 5 = 0

4 0

3 years ago

Read 2 more answers

1st Step: 3 - 4x - 7 = -24<br> 2nd Step: 3- 7 - 4x = -24<br> What property justifies the 2nd step

gizmo_the_mogwai [7]

Answer:

the subtraction

Step-by-step explanation:

3 0

3 years ago

–6 + (–12)<br><br><br>Evaluate the expression

Elanso [62]

Answer:

-18.

Step-by-step explanation:

They're both negative numbers being added to each other, so you'd add 6 and 12 (which is 18) and then put a negative sign before the 18. Therefore, your answer is -18.

I hope this helps, have a nice day.

3 0

3 years ago