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3 years ago

5

mr. Smith is putting in a new floor in his bathroom he has already filled 25 ft.² of floor measuring 10‘ x 6‘ what percent has h

e tiled

1 answer:

Salsk061 [2.6K]3 years ago

7 0

Answer:

41.67%

Step-by-step explanation:

$tiled \: percent = \frac{25}{10 \times 6} \times 100 \\ \\ = \frac{2500}{60} \\ \\ = 41.6666667\% \\ \\ \approx \: 41.67\% \\$

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Evaluate the expression. StartFraction 9 factorial Over 3 factorial EndFraction 3 6 60,480 362,874

REY [17]

Answer:

60,480 is the correct answer.

Step-by-step explanation:

First of all, let us have a look at the <em>formula of factorial of a number 'n'</em>:

$n! = n \times (n-1) \times (n-2) \times ...... \times 1$

i.e. multiply n with (n-1) then by (n-2) upto 1.

<em>Keep on subtracting 1 from the number and keep on multiplying until we reach to 1.</em>

<em></em>

So, $9!$ can be written as: $9 \times 8 \times 7 \times ...... \times 1$

Similarly $3!$ can be written as: $3 \times 2 \times 1$

Re-writing $9 !$ :

$9 \times 8 \times 7 \times ...... 3 \times 2 \times 1\\\Rightarrow 9 \times 8 \times 7 \times ...... 3 !$

Now, the expression to be evaluated:

$\dfrac{9!}{3!} = \dfrac{9 \times 8 \times 7 \times ..... \times 3!}{3!}\\\Rightarrow 9 \times 8 \times 7 \times 6 \times 5 \times 4\\\Rightarrow 60480$

5 0

3 years ago

Read 2 more answers

If a vertical plane sliced a sphere, what would be the 2-D cross section?

Colt1911 [192]

Answer:
Circle
Explanation:
Because if you cut a circle I’m half anywhere it will be a circle because it’s round everywhere.

4 0

3 years ago

Yumiko solved |x|>5 by solving x>-5 and x<5. explain the error yumiko made

Whitepunk [10]

Answer:

switched signs around

Step-by-step explanation:

I believe that s/he switched the signs around so

|x|>5 is solved by x<-5 and x>5

but I'm not quite sure, sorry

3 0

2 years ago

Can anybody help? i’m super confused

vaieri [72.5K]

Answer: So i think what you want is for the first one you want the crocadile mouths pointing to the nine, and the same for the second, it is kinda confusing pic

6 0

3 years ago

Can y’all give me the area of each figure

KIM [24]

Answer:

1. 208 in^2

Step-by-step explanation:

1. We can break the shape up into a rectangle in the middle and 2 triangles on either side of said rectangle.

The dimensions of the rectangle are 8 in by 20 in, and we only know one leg of the triangle as well as the hypotenuse.

If we know one leg and the hypotenuse we can use the pythagorean theormed to sovle for the other side and get 6 in.

So we have

(8 * 20) + 2((1/2)(6)(8))

160 + 48

208 in^2

5 0

3 years ago