A plane flying overhead at night is located by two
searchlights as shown at right. The two
searchlights are 1200 feet apart. Angle A = 72°
and angle B = 77º. How high is the plane?

Answers

Answer 1

Answer:

Step-by-step explanation:

B

2

3

Let the distance of two consecutive stones are x, x+1.

In ΔBCD, we have

tan60

o

=

x

h

⇒x=

3

h

      .....(i)

In ΔABC, we have

tan30

o

=

x+1

h

3

1

=

x+1

h

3

h

+1=

3

h       ......[from equation (i)]

3

2h

=1

⇒h=

2

3

 km

solution


Related Questions

3(3x - 12) - 24 !!?!???

Answers

Answer: 9x+−60

Step-by-step explanation:

what integer best represents that the temperature outside increased by 12°F?

I WILL APPRECIATE ​

Answers

Answer:

-11.11*C

Step-by-step explanation:

12°F − 32) × 5/9 = -11.11*C

What is Q1 for this data set?

{2, 3, 5, 5, 6, 8, 8, 9, 10, 11, 11, 11, 12}

Answers

Answer:

Q1 = 5

Step-by-step explanation:

Q1 is the first quartile

Divide the data in half, that will get you Q2 or the second quartile

There are 13 data points so the middle is the 7th data point

2, 3, 5, 5, 6, 8,    8,       9, 10, 11, 11, 11, 12

Take the lower half of the data and divide it in half

There are 6 data points so the middle is between the 3rd and the 4th data point so we average them

2, 3, 5,    5, 6, 8,

(5+5)/2 = 10/2 = 5

The 1st quartile or Q1 = 5

Your answers will be Q1=5

Solve for d:
-9.4d + 26 < 91.8

Answers

Answer:

-9.4d+26-26<91.8-26

-9.4d+0<65.8

-9.4d < 65.8

-9.4d÷-9.4>65.8÷-9.4

d > -7

In their latest play, the Giants lost another 5 yards. This is their third time losing 5
yards. The also gained 20 yards. Give an integer to represent how many yards the
Giants have gained or lost.

Answers

Using basic operations, it is found that the integer 5 represents that the Giants have gained 5 yards.

-----------------------------------------

There have been three plays where the Giants have lost 5 yards, thus, 3 times 5 is subtracted from their yardage total.There is one play where the Giants have gained 20 yards, thus, 20 yards are added to their yardage total.

Using basic operations, we find the integer that represents the Giants yardage, as follows:

[tex]Y = -3\times5 + 20 = -15 + 20 = 5[/tex]

The integer 5 represents that the Giants have gained 5 yards.

A similar problem is given at https://brainly.com/question/14350453

Match the equivalent expressions. 36+24 plzz help bc i gotta finish today

Answers

Answer:

12(3+2)

Step-by-step explanation:

the number of gallons of bottled water N consumed by a person in one year is approximated by N=0.733t + 8.398, where t is the number of years since 1971. Predict the number of gallons consumed by a person in 1985.

Answers

Step-by-step explanation:

N = 0.733t + 8.398

N = 0.733(1971) + 8.398

N = 1,453.141

Step-by-step explanation:

Solution,

According to question,

N=0.733t + 8.398

When t= 1971, then

N=0.733×(1971) + 8.398

N=1453.141

What is the equation of the line that passes through the point (-7, 2) and has a
slope of -1

Answers

Answer:

y = -x - 5

Step-by-step explanation:

y = mx + b

slope = m = -1

y = -1x + b

y = -x + b

Plug in (-7, 2) for x and y, and solve for b.

2 = -(-7) + b

2 = 7 + b

b = -5

y = -x - 5

Which integer CANNOT be a solution to the inequality 6x − 4 ≤ 7x − 3 ? (15 points)

Answers

Answer:X is greater than or equal to -1

Step-by-step explanation:

-4<7x-3-6x

-4<x-3

-4+3<x

-1<x

x>-1

Every greater than or less than sign should be equal to so they are all greater than or equal to or less than or equal to :)

HELP WILL MARK BRainlIEST WITH EXPLANATION

Answers

[tex]Hello[/tex] [tex]There![/tex]

The answer is...

[tex]y=-8x+15.[/tex]

HERE'S THE EXPLANATION!

Let's solve for y.

[tex]8x+y=15[/tex]

Step 1: Add -8x to both sides.

[tex]8x+y+-8x=15+-8x[/tex]

[tex]y=-8x+15[/tex]

THE ANSWER!

[tex]y=-8x+15[/tex]

Hopefully, this helps you!!

[tex]AnimeVines[/tex]

If there is 6/8 of a pizza left after lunch, how many 1/6 pieces can be cut for an afternoon snack

Answers

Answer:7/12

Step-by-step explanation:

. Means x 6/

8

- 1/

6

= 6 · 3/

8 · 3

- 1 · 4/

6 · 4

= 18/

24

- 4/

24

= 18 - 4/

24

= 14/

24

= 2 · 7/

2 · 12

= 7/

1

1. if f(x)=3x-1, find f(-5)

2. if h(x)=2x+3 and g(x)=3-4x, find 3h(1)-g(2)

Answers

Answer:

1 f(-5) = 3(-5)-1= – 15 – 1 = – 16

2. h(1) = 2(1)+3=2+3=5

g(2)= 3- 4(2)=3 – 8 = – 5

3h(1) ‐ g(2) = 3 (5) – (-5) = 15 +5= 20

I hope I helped you^_^

Answer:

number 1 =

Let  y=f(x)=3x−5

Clearly f(x) is one-one onto function so it is invertible.

y=3x−5 ⇒x =   y+5/3

∴f  −1 (x)=   y+5/3

number 2=

(g-h)= 4x+3-x3-2x3

(g-h)=4(-1)+3-(-1)2-2(-x)2

(g-h)=-4+3-(-1)-2(1)

(g-h)=-4+3+1 -2

(g-h) =  2

hope that helps>3

Step-by-step explanation:

How do you get 6.80 from 2.25 ×2.80

Answers

Answer:

answer is 6.3

Step-by-step explanation:

there is no way to get 6.80 from 2.25*2.80 because its answer is 6.3

Based on the data which table shows a constant of proportionality of 3 for the ratio of Amos and guitars?

Answers

For the answer Use ph0t0 math works

what describes f(x) = |x|

Answers

Answer:

mean see weididjdbd ksksns e

Answer:

Let's take an example.

If you put the value of x as 1, it gives one.

Even if you put 3.997654, it will give 3.997654.

But for any negative real number, it gives the same number but not with it's negative sign. Like if x =-3/7,

It will give 3/7.

The notation used here means it is the modulus function.......

Which diagram represents the following sets

Answers

Answer:

not sure what is the question

Step-by-step explanation:

What is the LCM of
12 and 40

Answers

Answer:

120

Step-by-step explanation:

12 and 40

Multiples of 12 = 12,24,36,48,60,72784,96,108,120..

Multiples of 40 = 40,80,120..

Common in both = 120

Answer:

120

Explanation:

The least common multiple (LCM) of two or more whole numbers is the smallest whole number that is divisible by each of those numbers. Basically, the LCM is the smallest number that all the numbers divide into evenly. So for 12 and 40, we get 120 since 120 ÷ 12 = 10, 120 ÷ 40 = 30

When a measurement in inches is converted to centimeters, will the number of centimeters be grater or less than the number of inches? Explain.​

Answers

Answer:

A centimeter is smaller than an inch, so a given length will have more centimeters than inches. This alone shows you that the NUMBER of cm units will always be greater than the number of inches, for a given measurement.

Create a 2-step equation
that has p = 0.5 as its
solution.

pls help! :)

Answers

2p+7=8

2 1/2 = 1
1 + 7 = 8

Two step equations are equations which take 2 steps to solve. Let's create our equation now.

2p + 2 = 3

If you'd like, you can solve it to ensure it's correct.

2p + 2 = 3

Subtract 2 from both sides.

2p = 1

Divide both sides by 2

p = 0.5

Linda travels 58.6 miles each day for the past seven days how many miles did you drive in all?​

Answers

Answer:

410.2 miles total

Step-by-step explanation:

58.6 miles × 7 days = 410.2 miles

40%of a number is 160 what is 60% of the same number​

Answers

Answer:

38.4

Step-by-step explanation:

40%×160=64

60%×64=38.4

The product of 6 and 14 more than a number

Answers

Answer:

its one i think  

Answer:

Here,  more than indicates adding, and products means result of multiplication

Thus,

6* 14+x

NOTE: These questions are to be made into an equation with using a variable. That is what i have done but if the questions states something abt the final result we get then we need to solve for x

What is the missing
symbol (?) to make
this true?
54 + 24 ? 23 – 30 = 32

Answers

The division ➗ ÷ sign will make the expression correct if you correct the question!

Find the sum.

12Σn=1 3n +1

a. 252
b. 234
c. 246

Answers

Answer: C

Step-by-step explanation:

[tex]Method\ 1\\\\\displaystyle \sum _{i=1}^{12} (3i+1)=\dfrac{((3*12+1)+(3*1+1))*12}{2} =(37+4)*6=246\\\\Methode\ 2\\\\\displaystyle \sum _{i=1}^{12} (3i+1)=\sum _{i=1}^{12} (1)+3*\sum _{i=1}^{12} (i)=12+3*\dfrac{(12+1)*12}{2} =12+3*13*6=246\\[/tex]

Answer C


25. Critique Reasoning A student is given the rectangle and the square shown. The student states that the
two figures have the same perimeter. Is the student correct? Explain your reasoning.

Answers

You only attached the square. Edit the question to add it, and then I'll edit my answer.

Which square root is between 4 and 5?
A. √ 10
B. √ 14
C. √24
D. √ 32

Answers

the answer would be D.
The answer is C.

To answer this, square both 4 and 5.

4^2 = 16
5^2 = 25

So the number you’re looking for under a square root needs to be between 16 and 25. 24 is the only number that fits the bill.

The answer is C.

Please help i will give extra points

Answers

Answer:

Don't know if there's more to this.

He Owes –$18

He gets +$30 for cleaning the house.

He'll simply have 30–18 = $12 after paying the debt he owes his Mom.

Answer:

$12

Step-by-step explanation:

If Ryan owes his mom 18 dollers, that means he has to pay his mom 18 dollers and then gets 30 dollers in return.

so the expression is -18+30 which is 12 dollers. So Ryan will have 12 dollers extra after paying is mom.

Evelina is shopping for back-to-school clothes. She bought 3 skirts, 2 pairs of
jeans, and 4 sweaters. Write and evaluate an expression to find out how much she
spent.

Answers

Answer:

3a + 2b + 4c = D

D = Amount Spent

Step-by-step explanation:

Is (3,4) a solution of - 4x + 7y = - 12?

Answers

Answer:

No

Step-by-step explanation:

Plug x (3) and y (4) in to see if it equals -12.

Please help me someone my work is due in pretty soon somebody please help me
Somebody please answer
1 and 2 fully for me I will mark you as brainlest

Answers

Answer:

take a better pic, i cant read that. but i can help if u insert a new pic

Step-by-step explanation:

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