Tom observes 240 birds. He notices that 12 of them have blue tail feathers. The next day he spots 40 birds with blue tail feathers. How many birds did he view in total that day?

Answer:

First find out the other side measurements. Then split the shape into seperate squares and find the area then add them all up.

Step-by-step explanation:

volume is length × width × height.

Answer:

240 cm cubed

Step-by-step explanation:

If you separate the shape into 2 figures, the first figures area is 180

and the second is 60.

180 + 60 = 240

Hope this helps!

Answer:

53°

Step-by-step explanation:

ΔABC is a right triangle (one of the angles is 90°).

You can use SOH-CAH-TOA to find an angle:

Sine = Opposite / Hypotenuse

Cosine = Adjacent / Hypotenuse

Tangent = Opposite / Adjacent

In this case, we want to find ∠A.  We know the lengths of the opposite side and the hypotenuse.  Therefore, we should use sine.

sin A = 12 / 15

m∠A = sin⁻¹(12/15)

m∠A ≈ 53°

Alternatively, you could use Pythagorean theorem to find the third side, then use either cosine or tangent to find m∠A.

Answer:

53

Step-by-step explanation:

Hope this helps

Answer:

AB = AH

Step-by-step explanation:

Hope This Helps!!

Answer:

No, it's not linear function.

Step-by-step explanation:

The x value repeatedly adds 3.

So far its a linear function.

If you look at the y value, it does NOT have a pattern, therefore that means it is NOT a linear function.

Answer:

Acute angle

Step-by-step explanation:

because it less than 90 degree so it possible to be acute triangle

Answer:

12 yards

Step-by-step explanation:

From. The picture attached, we could obtain the angle of elevation, θ from the curb of the street to the top of the building.

Using trigonometric relation :

Tanθ = opposite / Adjacent

Opposite = 30 yards

Adjacent = 40 yards

Tanθ = 30/40

θ = tan^-1(0.75)

θ = 36.869897°

Distance between curb of street and flagpole :

(40 - 24) yards = 16 yards

Let height of flagpole = h

Tanθ = opposite / Adjacent

Opposite = h yards

Adjacent = 16 yards

Tan36.869897 = h/16

0.75 = h / 16

h = 0.75 * 16

h = 12 yards

Answer:

a

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

All sides should add up to 180 degrees

90+56=146

180-146=34

Answer:

10x²+8x

Step-by-step explanation:

times everything in the bracket by 2x

Answer:

She made 80 total cookies because 25% of 64 is 16. 64 plus 16 is 80. You are adding the original amount(60) to 25%(16).

[tex]Your \ answer \ is.[/tex]

[tex]1. x<=-10\\2.a>-60\\3.g>9\\4.y>=36[/tex]

[tex]- Yaoii[/tex]

Answer:

top is correct. byeeeeeeeeee

Answer:

its D

Step-by-step explanation:

In a right triangle the hypotenuse which is 16+9 =25 has to be the largest side.  Since x is not the hyportenuse it has to be lower which only leaves one answer : 15

Answer:

Step-by-step explanation:

these are tough to solve  , don't feel bad.   soo part of the trick is that the two side set  up similar triangles, then  

16 / y  = y /9     ( the two triangles

16* 9 = [tex]y^{2}[/tex]

144 = [tex]y^{2}[/tex]

12 = y

y is the length between the two triangles , so since we now know that part, we can solve the triangles.

lets use tan to solve one of the angles of the smaller triangle

TOA  to remember how tan fits on a triangle

Tan = Opp / Adj

Tan(Ф) = 9/12

Ф = arcTan(9/12)

Ф = 36.869897

knowing that we can solve for x

use CAH   cos = Adj / Hyp

Cos(36.869897) = 12 /  Hyp

Hyp = 12/ Cos(36.869897)

Hyp = 15   :)  that seems reallly good ..  :P

x = 15   there you go  

Answer:

Value of the car at the end of 3 years is £7917.75

Step-by-step explanation:

The car is purchased for £11500.

In the first year, 15% depriciation.

So, depreciation on first year =11500 *[tex]\frac{15}{100}[/tex] =1725

After first year depreciation the value of car =11500-1725 =£9775

Now, second year depreciation is 10%

So, 10% of 9775 =0.10*9775 =977.5

Value of car after 2 years = 9775 -977.5 =8797.5

Now, for third year depreciation is 10%.

So, depreciation on 3 year = 10% *8797.5

                                           =0.10*8797.5

                                          =879.75

So, value of car after 3 years = 8797.5 -879.75 =£7917.75

Answer:i

Step-by-step explanation:

Answer:

Step-by-step explanation:

8 - 4+ (3.6)2

= 8 - 4 + 7.2

= 11.2

hope it helps :)

Answer:

- 5

Step-by-step explanation:

let the number be n then double is 2n , so

2n + (- 6) = - 16

2n - 6 = - 16 ( add 6 to both sides )

2n = - 10 ( divide both sides by 2 )

n = - 5

The number is - 5

Answer:

12 x 18 CM.

Step-by-step explanation:

Because 3 cm is 1 ft  so if it is 4 you multiply that by 3 which equals 12 , and for 6 feet you multiply that by 3 cm  and get 18. SO it is 12 x 18 cm.

Answer:

4.089, 4.87 4.881 , 4.89

Step-by-step explanation: this is true because for 4.89 you would just add a 0 to make it 4.890

Answer:

Step-by-step explanation:

A proportion is being directly related to something, meaning that there is just multiplication or division (just a coefficient in front of the x-coordinate, nothing more).

In a graph, a proportional graph is a graph that goes straight through the origin.

Answer:

Step-by-step explanation:

The standard form of equation of a circle is expressed as;

x^2+y^2+2gx+2fy+c = 0

The centre is at (-g, -f)

Given the equation'

9x²+9y²+18x-12+10=0

Divide through by 9

9x²/9+9y²/9+18x/9-12y/9+10/9=0

x^2+y^2+2x-4/3 y + 10/9 = 0

Compare

2gx = 2x

g = 1

2fy = -4/3 y

2f = -4/3

f = -4/6

f = -2/3

The centre is (-(-2/3), -1) = (2/3, -1)

for the radius

r = √f²+g²-c

r =√(-2/3)²+1²-10

r =√4/9 - 9

r = √(4-81)/9

r = √-77/9

Answer:

$12

Step-by-step explanation:

We are told that there are 20 people in the chess club and each got a discount of $60 for transportation on the field trip.

Let the amount spent by each member is x

Since there are 20 of them and the budget is at least $300 and they get a discount of $60, it means that;

20x ≥ 300 - 60

20x ≥ 240

Divide both sides by 20 to get;

x ≥ 12

Thus, minimum amount each member can spend is $12.

Answer:

The savings interest rate of Nakato Nobuki is 3 %

Step-by-step explanation:

Given;

Final amount of Nakato Nobuki, A = $ 24,000.00

time period of his investment, t = 5 years

principla amount, P = $ 1,500.00

The savings interest rate of Nakato Nobuki can be calculated on a simple interest basis.

A  = P(1 + rt)

r is the savings interest rate

Substitute the given values and solve for r

24,000 = 1,500(1 + 5r)

24,000 = 1,500 +  7,500r

7,500r = 24,000 - 1,500

7,500r = 22,500

r = 22,500/7,500

r = 3 %

Therefore, the savings interest rate of Nakato Nobuki is 3 %

Answer:

55˚

Step-by-step explanation:

1. ∡135˚ = 180-135=45˚

2. p=180-80-45

3. p=55˚

Answer:

c. is the correct answer

Answer:

balloons

Step-by-step explanation:

to make it easier,there are only four tradic colors combination on basic color wheels Red,Yellow,Blue,

Answer:

268

Step-by-step explanation:

The volume formula for a sphere is: V= [tex]\frac{4}{3}\pi r^{3}[/tex]

We also know that [tex]\pi[/tex] is approximately 3.14.

You have to know these in order to solve the question..

Since we also know the diameter is 8 we can also find the radius (r) ,which is half of the diamater so 4.

Now all we need to do it plug in the numbers.

V= [tex]\frac{4}{3}[/tex](3.14)[tex]4^{3}[/tex]

Now solve for the equation.

V=267.94...

So rounded that is 268.

Answer:

50

%

increase

Step-by-step explanation:

To calculate the percent change, whether it is an increase or decrease, you can use the same method:

change

original

×

100

%

The change in the puppy's weight  

=

7.8

−

5.2

=

2.6

pounds

2.6

5.2

×

100

%

=

50

%

increase

Notice that  

2.6

is half of  

5.2

, so an increase of  

50

%

is correct.

Answer:  B

Step-by-step explanation: