You want to find the width, AB, of a river. You walk along the edge of the river 100 ft and mark point C. Then
you walk 22 ft further and mark point D. You turn 90° left and walk until your location, point A, and point C are
collinear. You mark point E at this location, as shown.

(a) Suppose DE = 42 ft. What can you conclude about the width of the river? Explain. Your explanation
should include the approximate width and how you got this answer.
(b) Can you conclude that △ and △ are similar? Why or why not?

Answer:

Step-by-step explanation:

Use ratios and solve for x

Q1

Q2

Answer:

-3/2

Step-by-step explanation:

go up 3 and left 2

Answer:

16/21

Step-by-step explanation:

Answer:

x = 0; y = 5

Step-by-step explanation:

-5x + 3y = 15

2x - 3y = -15

Add the equations to eliminate y.

3x = 0

x = 0

Now plug in 0 for x in the first equation to solve for y.

-5(0) + 3y = 15

3y = 15

y = 5

Answer: x = 0; y = 5

Answer:

Answers: 40/60 and 400/600.

Step-by-step explanation:

Ok, these fractions are equivalent to 67%, and to 4/6.

Answer:

3.9 pints

Step-by-step explanation:

Given:

Caroline uses 6.5 pints of blue paint and white paint to paint her bedroom walls.

2/5 of this amount is blue paint, and the rest is white paint.

To find :

How many pints of white paint did she use to paint her bedroom walls?

Solution:

Caroline uses pints of blue paint and white paint = 6.5                                                  

Amount of blue paint = 6.5 - 2.6 = 3.9 pints

Therefore, 3.9 pints of white paint she used to paint her bedroom walls.

Answer:

(6,30)

Step-by-step explanation:

This is where the two lines intersect. Also, we can verify our answer by plugging 6 in for x and 30 in for y.

Answer:

39.12

Step-by-step explanation:

First you find 20% of 32.60

32.6 * 20/100

32.6 * 0.2

= 6.52

So the tip is $6.52

Add the tip and the regular cost

32.60 + 6.52 = 39.12

$39.12 is the total amount he paid

Answer:

[tex]x=2.3\text{ only }[/tex]

Step-by-step explanation:

We are given the second derivative:

[tex]g^\prime^\prime(x)=0.1x^5-0.29x^4-0.694x^3+1.9136x^2[/tex]

And we want to find the values for -3 < x < 4 in which the graph of g has a point of inflection where the concavity changes from concave up to down.

First, recall that inflection points occur whenever g''(x) = 0 or is undefined.

And that:

Graphing the function (please refer below for the graph), we can see that g''(x) has an inflection point at x = -2.6, 0, 2.3, and 3.2.

If g''(x) changes from concave up to concave down, the values before and after that inflection point must be positive and then negative.

We can see that g''(x) is only positive for the values before the inflection points at x = 0 and x = 2.3.

However, for values after the inflection points, only x = 2.3 becomes negative.

Therefore, since at x = 2.3, the graph changes from positive to negative, this is where the graph of g changes from concave up to concave down.

Notes:

For the point x = 0, the graph stayed positive both before and after x = 0.

Therefore, g does not have an inflection point at x = 0.

Answer:

68

Step-by-step explanation:

because she wants to double the recipe

so she will need 6 cups of milk

Answer:

2 - v

Easy method: plug in v with some other number and see how it rolls out

Answer:

Hi how are you doing today Jasmine

Step-by-step explanation:

The answer is down here

1. 8

2. 2

3. b

4. f

Answer:

The first one

Step-by-step explanation:

the X values are all diffrent

Answer:

314ft^2

Step-by-step explanation:

The area of a circle is found using this equation:

A=3.14r^2

r = radius

so if we know the radius is 10ft, we can put that into the equation and it will read:

A=3.14(10)^2

^2 means squared, for clarification.

Using PEMDAS we know to do exponents first

A=3.14(100)

Now multiply

A=314

and don't forget to add your units and square!

A=314ft^2

Answer:

Step-by-step explanation:

Associative property

Answer:

10% or .10

Step-by-step explanation:

Answer:

6 m

Step-by-step explanation:

Base = Area/height = 54/9 = 6m

Answer:

The picture has the graphed line on it.

Step-by-step explanation:

measure of angle 5 = measure of angle 1 ( corresponding angle)

measure of angle 5 = 130 °

plz mark my answer as brainlist plzzzz.

hope this will be helpful to you.

Answer:

55 points

Step-by-step explanation:

equation is close to y = 7.1x + 15

y = 7.1(6) + 15 comes closest to 55

Answer:

calme please helpppppooppo

Answer:

kklj

Step-by-step explanation:

Answer:

rectangle

Step-by-step explanation:

Answer:

Rectangle

Step-by-step explanation:

this is the answer

Answer: 97%

Step-by-step explanation:

15% + 38% + 44% = 97%

Answer:

The outside plane located at 3 miles above the airport is of -3.6 degrees.

Step-by-step explanation:

The ground temperature at airport is 12 degrees. The temperature decreases by 5.2 degrees for every mile above ground.

This means that the temperature in n miles above ground is given by:

[tex]T(n) = 12 - 5.2n[/tex]

What would be temperature outside plane located at 3 miles above the airport

This is T(3). So

[tex]T(3) = 12 - 5.2*3 = 12 - 15.6 = -3.6[/tex]

The outside plane located at 3 miles above the airport is of -3.6 degrees.

Answer:

So basically, if it is under 1/2, its unlikely to occur, and if it is 1/2 or greater, it is likely.

Step-by-step explanation:

a is unlikely

b is unlikely

c is likely

d is unlikely

e is likely

f is unlikely

the answer is 6............

Answer:

U=6

Step-by-step explanation:

U/9= 4/6

Both side multiply 9

U=4*9/6

U=36/6

U=6

Answer:

It was a rainy day , but Joan and I had planned a trip. Joan wanted to go to the beach for a swim. I wasn't sure if we should go.

"I think we should wait a little longer , at least until the rain shows some signs of slowing down," I suggested.

"We can't swim without getting wet anyway," replied Joan, questioning my choice of swimsuit , the one my mom had bought at a secondhand store.

Step-by-step explanation: