All categories

2 years ago

Help answer please!!

Mathematics

1 answer:

12345 [234]2 years ago

6 0

Answer:

h = 19.7 ft.

Step-by-step explanation:

Use the Pythagoras Theorem

$(Hypotenuse)^2 = (Base)^2 + (Perpendicular)^2\\\\(20)^2=(3.5)^2+(h)^2\\400=12.25+h^2\\400-12.25=h^2\\387.75=h^2\\$

Now we take square root on both sides,

$\sqrt{387.75} =\sqrt{h^2}\\19.69=h\\h=19.7\ ft\\$

so the value of h equals 19.7 ft.

You might be interested in

Louise completed the work shown below. (5x3 + 3)2 = (5x3)2 + (3)2 = 25x6 + 9 Determine if Louise’s answer is correct. Explain

Sergeu [11.5K]

Louise’s answer is not correct. She is missing the term 30x3. When squaring a binomial, it is best to write the product of the binomial times itself. Then you can use the distributive property to multiply each term in the first binomial by each term in the second binomial. Louise also could have used the formula for a perfect square trinomial, which is found by squaring a binomial.

10 0

3 years ago

Read 2 more answers

5 ( n - 7 ) = 2 ( n + 14 )

wariber [46]

Answer:

n=21

Step-by-step explanation:

We must find n.

Remember PEMDAS. First we must do the Parentheses. Lets do distributive property by multiplying a number that is immediately outside the parentheses with each number inside the parentheses. Lets do this one side at a time.

First lets do 5(n - 7). We get 5n - 35

Now 2(n + 14) is 2n + 28

Okay...... now we have $5n-35=2n+28$

Now lets do OPPOSITES!!!! We must do the opposite of each thing to both sides.

The opposite of -35 is positive 35. Lets add 35 to both sides. We get:

$5n=2n+63$

Now lets do the opposite of 2n which is -2n

$3n=63$

this is looking quite nice isnt it..........

The opposite of 3 times n is 3 DIVIDED BY n. So lets divide both sides by 3

$n=21$

amazing.......

8 0

2 years ago

Read 2 more answers

Kal is decorating the outside edge of a square

Grace [21]

Answer: Option A
Take not that this is a square bulletin board thus area = Length Times Base. Notice how it says its a square as well? thus telling us that each side is of equal length

Squaring the value N would give us the value of the one side of the board

5 0

3 years ago

Factor the expression using the common factor −6 . −12x−18y−3.6 Drag a value or operation/sign to the boxes to correctly factor

Sphinxa [80]

Answer: 2 2 3 4 5

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

The profits in hundreds of dollars, p(c), that a company can make from a product is modeled by a function of the price, c, they

Fiesta28 [93]

Answer:

640,000

Step-by-step explanation:

took test

7 0

2 years ago