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3 years ago

Find the total area of the solid figure with the length, 3 width 5, and height 6

Mathematics

2 answers:

vladimir1956 [14]3 years ago

5 0

A = w x l x h
A = 3 x 5 x 6
A = 90

Anon25 [30]3 years ago

3 0

To find the area of a rectangle multiply its height by its width. For a square you only need to find the length of one of the sides (as each side is the same length) and then multiply this by itself to find the area.

Good Luck

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F(x)=x2 + 2x2-x-2 Help please

mel-nik [20]

The answer is d. Hopefully you get it right

6 0

3 years ago

Given that f(x) = 10x + 45, find f(7)

sattari [20]

Answer:

$\boxed{\bf f(x) = 115}$

Step-by-step explanation:

Given polynomial function :-

$f(x) = 10x + 45$

To find :-

$\sf \: f(7)$

Solution:-

$\sf \implies \: f(x) = 10x + 45$

Here, the value of x is 7(given).

So, Substitute the value of x on the RHS and on LHS :-

$\sf \implies{f}(“7”) = 10(“7”) + 45$

Simplify the RHS:-

Multiply 10 and 7 :-

$\sf \implies{f}(7) = 10 \times 7 + 45$

$\sf \implies{f}(7) = 70 + 45$

Add 70 and 45 :-

$\sf \implies{f}(7) = 115$

We're done!

Hence, the value of f(7) would be,

$\sf \implies{f}(7) = 115$

$\rule{225pt}{2pt}$

I hope this helps!

Let me know if you have any questions.

6 0

3 years ago

Betty and Karen have been hired to paint the houses in a new development. Working together, the women can paint a house in two-t

mariarad [96]

Answer: 3 hours

Step-by-step explanation:

Here is the correct question:

Betty and karen have been hired to paint the houses in a new development. Working together the women can paint a house in two thirds the time that it takes karen working alone. Betty takes 6 hours to paint a house alone. How long does it take karen to paint a house working alone?

Since Betty takes 6 hours to paint a house alone, that means she can paint 1/6 of the house in 1 hour.

Karen can also paint 1/x in 1 hour

Both of them will paint the house in 3/2 hours.

We then add them together which gives:

1/6 + 1/x = 3/2x

The lowest common multiple is 6x

1x/6x + 6/6x = 9/6x

We then leave out the denominators

1x + 6 = 9

x = 9 - 6

x = 3

Karen working alone will paint a house in 3 hours.

5 0

3 years ago

In a store a $500 scooter is marked '20% off'. What is the sale price of the scooter?

melisa1 [442]

20% of 500 is 100, so take 100 off 500, which is 400. So, $400.

6 0

3 years ago

Tan 45 * cos 45 + tan 30 * tan square 60

slavikrds [6]

Answer:

Regroup Terms: cos 45 tan 45x + tan^2 tan 30x, 60

3 0

3 years ago

Read 2 more answers