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3 years ago

8

How long must a ladder be to reach to top of a 20 foot wallif the ladder and the top wall form a 32 degree angle at the top. Ro

und to 2 decimal places .

1 answer:

seraphim [82]3 years ago

3 0

Check the picture below.

make sure your calculator is in Degree mode.

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Solving Rational equations. LCD method. Show work. Image attached.

Dmitry [639]

Answer:

$b=1$

Step-by-step explanation:

The given rational equation is

$\frac{2b-5}{b-2} -2=\frac{3}{b+2}$

The Least Common Denominator is $(b+2)(b-2)$ .

Multiply each term in the equation by the LCD.

$(b+2)(b-2)\times \frac{2b-5}{b-2} -(b+2)(b-2)\times2=(b+2)(b-2)\times\frac{3}{b+2}$

Simplify;

$(b+2)\times \frac{2b-5}{1} -2(b+2)(b-2)=(b-2)\times\frac{3}{1}$

$(b+2)(2b-5) -2(b+2)(b-2)=3(b-2)$

Expand and group similar terms

$2b^2-5b+4b-10 -2(b^2-4)=3b-6$

$2b^2-5b+4b-10 -2b^2+8=3b-6$

$-b-2=3b-6$

$3b+b=-2+6$

$4b=4$

$b=1$

3 0

3 years ago

A large container holds 5 gallons of water. It begins leaking at a constant rate. After 10 minutes, the container has 3 gallons

Anna007 [38]

5 - 10 x = 3
10 x = 5 - 3
10 x = 2
x = 10 : 5
x = 0.2
The rate is : 0.2 gallons / minute
5 - t * 0.2 = 0
t * 0.2 = 5
t = 5 : 0.2
t = 25 min
Answer: After 25 minutes the container will be empty.

5 0

3 years ago

For man his wealth and children are: *<br>1 point<br>a.Life<br>b Wealth<br>c.Test (Trial)<br>d.Love

mojhsa [17]

Answer:

love

Step-by-step explanation:

kasi kapag ipina pakita nating ang love sa mga children mas madali lang nila ma adap ang mga magagandang aral

8 0

3 years ago

What is the HIGHEST common factor<br> of the set of numbers (54, 72, 90}?

suter [353]

Answer:

18

Step-by-step explanation:

54/18=3

72/18=4

90/18=5

6 0

3 years ago

Read 2 more answers

Example of how is the quadratic equation used in nursing?

Mumz [18]

Answer:

Nurses use this to calculate dosage needed for patients, calculating drip rates and conversion between systems.

Step-by-step explanation:

3 0

3 years ago