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3 years ago

Answer to 9a is 11.3km

Mathematics

1 answer:

DENIUS [597]3 years ago

8 0

Answer:

11.3 Km

Step-by-step explanation:

Consider the right triangle formed by AB and West.

The acute angle WAB = 270° - 250° = 20°

and West is the adjacent side of the right triangle with AB the hypotenuse

Using the cosine ratio in the right triangle, then

cos20° = $\frac{adjacent}{hypotenuse}$ = $\frac{adj}{12}$

Multiply both sides by 12

12 × cos20° = adjacent

11.2763.. = adjacent, that is

B is 11.3 Km west of A

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I need help on this question pls

Ivanshal [37]

Answer:

t = 17.5 f = 12

Step-by-step explanation:

If <em>MNOP </em>is a square, you know that each angle is going to be 90°. To solve, let's first set each equation equal to 90°:

$90 = 4t + 20$

and

$90 = 7f + 6$

Then solve both equations:

$90 = 4t + 20 \\ 70 = 4t \\ 17.5 = t$

and

$90 = 7f + 6 \\ 84 = 7f \\ 12 = f$

I hope that helps!

7 0

3 years ago

Convert 18 inches to feet using the table.

mr Goodwill [35]

Answer:

18inches = 1.5 ft.

14inches= 1.16667 ft.

Step-by-step explanation:

1inch = 0.0833 ft.

3 0

3 years ago

Read 2 more answers

When the integer n is squared, the result is less than 150. What is the sum of all possible values of n?

Rom4ik [11]

Answer = 0

n can have possible values from (-12) to 12
-12 <= n < 12

(-12) + (-11)+(-10)......+10+11+12=0

5 0

3 years ago

Write the equation of a line that passes through the point (1,4) and has a slope of 9.

Kryger [21]

Answer:

y=9x-5

Step-by-step explanation:

You want to find the equation for a line that passes through the point (1,4) and has a slope of 9.

First of all, remember what the equation of a line is:

y = mx+b

Where:

m is the slope, and

b is the y-intercept

To start, you know what m is; it's just the slope, which you said was 9. So you can right away fill in the equation for a line somewhat to read:

y=9x+b.

Now, what about b, the y-intercept?

To find b, think about what your (x,y) point means:

(1,4). When x of the line is 1, y of the line must be 4.

Because you said the line passes through this point, right?

Now, look at our line's equation so far: b is what we want, the 9 is already set and x and y are just two "free variables" sitting there. We can plug anything we want in for x and y here, but we want the equation for the line that specifically passes through the point (1,4).

So, why not plug in for x the number 1 and y the number 4? This will allow us to solve for b for the particular line that passes through the point you gave!.

(1,4). y=mx+b or 4=9 × 1+b, or solving for b: b=4-(9)(1). b=-5.The equation of the line that passes through the point (1,4) with a slope of 9

y=9x-5

4 0

3 years ago

HELPPPP THANKS ALOT

Karo-lina-s [1.5K]

Answer:

a: always, always

b. always, always

c. never, would not, never

Step-by-step explanation:

I hope this is right (i tried)

6 0

2 years ago