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3 years ago

Hi i need help with 18- 20

Mathematics

1 answer:

bagirrra123 [75]3 years ago

4 0

Answer: -2

Step-by-step explanation:

18-20 could easily be 20-18 and then adding the negative symbol

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2/3 (t+5) = 8<br><br>what does t equal?

Galina-37 [17]

Hey bro use an app called photo math it tells you ghe answer and teaches you how to do it

6 0

2 years ago

Pls help if you’re good at trigonometry tysm! Best answer is brainliest!

ExtremeBDS [4]

Answer:

7) a = 65; b = 50

8) c = 125; d = 55; e = 52

9) f = 105

Step-by-step explanation:

a = 65

b + 130 = 180

b = 50

c = 125

d + 125 = 180

d = 55

e = 52

(180 - f) + 32 + (180 - 107) = 180

180 - f + 32 + 180 - 107 = 180

-f + 285 = 180

-f = -105

f = 105

5 0

3 years ago

Read 2 more answers

I need help with these two trigonometry problems.

Sloan [31]

Answer:

$B \approx 32.1\°; A \approx 39.0\°$

Step-by-step explanation:

Sine theorem: in any triangle, the ratio between a side and the sine of the opposite angle is constant

$\frac{sin\ \alpha}a = \frac{sin\ \beta}b =\frac{sin\ \gamma}c$

In our case, for the left triangle,

$\frac {sin\ 103\°}{11} =\frac{sin\ B} 6 \rightarrow sin\ B = \frac6{11} sin\ 103\°$

Time to grab a calculator and crunch numbers. Double check your calculator is in degrees and not in radians (plug in sin 30°, if you're getting 0.5 you're good) and you will get

$sin\ B \approx 0.53 \rightarrow B \approx 32.1\°$

Same difference with the right triangle. With the same calculations

$sin\ A = \frac{26}{41} sin 83\° \approx 0.68 \rightarrow A \approx 39.0\°$

5 0

1 year ago

Solve for x.

zubka84 [21]

The correct answer is 9

3 0

2 years ago

Read 2 more answers

Rewrite the point-slope equation in slope-intercept form: y - 3 = 2(x + 4)

Olin [163]

Answer:

y = 2x + 11

Step-by-step explanation:

y - 3 = 2(x + 4)

y - 3 = 2*x + 2*4

y -3 = 2x + 8

y = 2x + 8 +3

y = 2x + 11

7 0

2 years ago