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iren [92.7K]
3 years ago
15

Help needed ASAP will give BRAINLIEST

Mathematics
1 answer:
grin007 [14]3 years ago
7 0

Answer:

C.

Step-by-step explanation:

Recall that the sum of the (3) interior angles of a triangle <em>must</em> equate to 180.

In other words:

(55)+(20)+(x)=180

Where x is our unknown angle. So, we need to solve for x.

On the left, add 55 and 20:

75+x=180

Subtract 75 from both sides. The left side cancels:

x=105

Therefore, the third angle is 105 degrees.

Our answer is C.

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Please help will give brainliest
beks73 [17]

Answer:

4

Step-by-step explanation:

The sum of the measures of all interior angles in triangle is always equal to 180°. So,

∠A+∠B+∠C=180°

∠B=180°-63°-49°=68°

Now use the sine rule:

\dfrac{c}{\sin \angle C}=\dfrac{b}{\sin \angle B}\\ \\\dfrac{3}{\sin 49^{\circ}}=\dfrac{b}{\sin 68^{\circ}}\\ \\b=\dfrac{3\sin 68^{\circ}}{\sin 49^{\circ}}\approx 3.685\approx 4

5 0
3 years ago
2x-1/3+3=x-3/5<br><br><br> pls do make sure to answer this *only if you know* <br> thank you
Contact [7]

Answer:

x =  - 3 \frac{4}{15}

Step-by-step explanation:

2x -  \frac{1}{3}  + 3  = x -  \frac{3}{5}

=  > 2x -  \frac{  1 +9 }{3}  = x -  \frac{3}{5}

=  > 2x +  \frac{8}{3}  = x -  \frac{3}{5}

=  > 2x - x  =  -  \frac{3}{5}  -  \frac{8}{3}

=  > x =  -  \frac{9 - 40}{15}

=  > x =  -  \frac{49}{15}

=  > x =  - 3 \frac{4}{15} (ans)

6 0
2 years ago
Read 2 more answers
Enter the statement, with the values in the same order, but with parentheses so that the statement is true. 6 × 3 − 4 × 3 + 16 ÷
lisabon 2012 [21]

Answer:

The correct statement with parenthesis  is (6 × 3) − ((4 × 3 )+ 16) ÷ 4 = 11

Step-by-step explanation:

The statement with parenthesis

(6 × 3) − ((4 × 3 )+ 16) ÷ 4 = 11

On solving we will get

18 - (28÷ 4)

18-7

11

Hence, the correct statement with parenthesis  is (6 × 3) − ((4 × 3 )+ 16) ÷ 4 = 11

7 0
2 years ago
Here 20 more for those who need it
Vikentia [17]

Answer: Thank you for the points!

5 0
3 years ago
Read 2 more answers
PLEASE HELP! A) 5.8 B) 8.3 C) 6.2 D) 6
lisabon 2012 [21]

Answer:

x = 8.3

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

cos theta = adj/ hyp

cos 44 = 6/x

x cos 44 / 6

x = 6/ cos 44

x=8.340981546

x = 8.3

7 0
2 years ago
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