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2 years ago

Find the missing lengths in the figure below. Then, find the perimeter of the figure. All measurements are in inches.

Mathematics

1 answer:

dlinn [17]2 years ago

6 0

Answer:

A = 1.83 inches

B = 0.62 inches

C = 1.82 inches

D and E = 2.71 inches

Step-by-step explanation:

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A hot air balloon hovers above its launch site at an altitude of 100 meters. The pilot of the balloon sights a parking lot at a

IgorLugansk [536]

Answer:

The horizontal distance between the parking lot and the launch site is 470 meters

Step-by-step explanation:

Let

x-----> the horizontal distance between the parking lot and the launch site

we know that

The tangent of angle of 12 degrees is equal to divide the altitude of 100 meters by the horizontal distance

tan(12°)=100/x

Solve for x

x=100/tan(12°)=470 meters

6 0

2 years ago

What constant do you need to add to each quadratic to complete the square?

babunello [35]

Answer:

1. 4

2. 16

3. 9

Step-by-step explanation:

Completing the square requires a quadratic in $ax^2+bx=c$ form. Once in this form, calculate $(\frac{b}{2})^2$ .

1. $(\frac{b}{2})^2=(\frac{-4}{2})^2=4$

2. $(\frac{b}{2})^2=(\frac{-8}{2})^2=16$

3. Requires you divide everything by 3 first.

$\frac{3x^2+18x}{3} =\frac{249}{3} \\x^2+6x=81$

$(\frac{b}{2})^2=(\frac{6}{2})^2=9$

6 0

2 years ago

Drag expressions into order to show a way to find 3 × 56.

lina2011 [118]

As we could "drag" these together, we could then do it the easy way.

56
+56
+56
-------
168
------------------------

Or we could also do the following:

56 $*$ 3:

6 $*$ 3= 18.

Carry the one.

5 $*$ 3 = 15+1 (which was carried). = 16

(16+8) = 168

7 0

2 years ago

Read 2 more answers

A fishing boat caught the following

xenn [34]

Wait what?? If you are talking about how much it could have caught it's 0 I guess

7 0

2 years ago

What is 12 1/3-10 11/12

Brut [27]

Answer:

1 5/12

Step-by-step explanation:

12 1/3 - 10 11/12

We need to get a common denominator of 12

12 1/3 * 4/4 - 10 11/12

12 4/12 - 10 11/12

We need to borrow from the 12 (the whole number) because the 2nd fraction is bigger than the first

12 becomes 11 and the 1 becomes 12/12

11+ (12/12 + 4/12) - 10 11/12

11 16/12 - 10 11/12

Subtract the whole numbers

11-10 =1

Subtract the fractions

16/12 - 11 /12 = 5 /12

We are left with 1 5/12

5 0

3 years ago