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Mariana [72]
3 years ago
14

Ill give brainliest please answer right i need like 3 more questions

Mathematics
2 answers:
Aleonysh [2.5K]3 years ago
6 0

Answer:

I think I am right but it should be F/2 equals 4

Step-by-step explanation:

because you canceled out 9 so 9 is out of the equation

ad-work [718]3 years ago
4 0

Answer:

f/2 = -20

f = -10

Step-by-step explanation:

1. Subtract 9 on both sides

f/2 + 9 -9 = 4 -9

= f/2 = -5

2. Multiply all terms by the same value to eliminate fraction denominators

2* f/2 = 2(-5)

3. Simplify

f = -10

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From a height of 50 meters above sea level on a cliff, two ships are sighted due west. The angles of depression are 61° and 28°.
Olenka [21]

Answer:

The ships are 66 meters apart.

Step-by-step explanation:

For the sake of convenience, let us label ships A and B

As shown in the figure, the distances to the ships from right triangles.

The distance to the ship A is d_1 and it is given by

tan (61^o)= \dfrac{50}{d_1}

d_1=\dfrac{50}{tan (61^o)}

\boxed{d_1= 27.71m}

And the distance to the ship B is d_2 and is given by

tan (28^o)= \dfrac{50}{d_2}

d_2=\dfrac{50}{tan (28^o)}

\boxed{ d_2=94.04m}

Therefore, the distance d between the ships A and B is

d= d_2-d_1=94.04-27.7\\\\\boxed{d=66m}

In other words, the ships are 66 meters apart.

8 0
3 years ago
Read 2 more answers
Pls help with sum geometry
kaheart [24]

YES! quite easily.

I hope you can see the two pairs of corresponding angles between the parallel lines. they'll be equal

and then there's a pair of vertically opposite angle at centre.

that means all pairs of corresponding angles are equal, thus, triangles are similar by AAA

4 0
3 years ago
Read 2 more answers
Find y: y − 4 = 6<br> A. 4<br> B. 10<br> C. 2<br> D. 6
aleksandrvk [35]

Answer:

Correct Answer is B

Step-by-step explanation:

y-4=6

+4. +4

y=10

7 0
3 years ago
Read 2 more answers
100 BRAINLY POINTS!!!
BARSIC [14]

Answer:

C)   y=-0.5x+8

Step-by-step explanation:

Line of best fit (trendline) : a line through a scatter plot of data points that best expresses the relationship between those points.

All the given options for the line of best fit are linear equations.

Therefore, we can add the line of best fit to the graph (see attached), remembering to have roughly the same number of points above and below the line.

Linear equation:  y=mx+b

(where m is the slope and b is the y-intercept)

From inspection of the line of best fit, we can see that the y-intercept (where x = 0) is approximately 8.  So this suggests that options C or D are the solution.

We can also see that the slope (gradient) of the line of best fit is approximately -0.5 (as the rate of change (y/x) is -1 unit of y for every +2 units of x).

Therefore, C is the solution, and the closet approximation to the line of best fit is y=-0.5x+8

4 0
2 years ago
Please help me ASAP thank you
DaniilM [7]

Answer:

x=17°

Step-by-step explanation:

163+x=180 (L.P)

x=180-163

x=17°

6 0
3 years ago
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