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2 years ago

If Sabrina has seven letters, with no repeats, how many possible arrangements are there with the seven letters.

Mathematics

1 answer:

MissTica2 years ago

3 0

Answer:

5040

Step-by-step explanation:

There are 7 possibilities for the first spot, 6 for the second, etc.

7*6*5*4*3*2*1=5040

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PLEASE HELP ASAP!!!

Dafna1 [17]

Answer:

Step-by-step explanation:

Any time you have compounding more than once a year (which is annually), unless we are talking about compounding continuously, you will use the formula

$A(t)=P(1+\frac{r}{n})^{(n)(t)}$

Here's what we have:

The amount after a certain time that she has in the bank is 4672.12; that's A(t).

The interest rate in decimal form is .18; that's r.

The number of times the interest compounds is 12; that's n

and the time that the money is invested is 3.5 years; that's t.

Filling all that into the formula:

$4672.12=P(1+\frac{.18}{12})^{(12)(3.5)}$ Simplifying it down a bit:

$4672.12=P(1.015)^{42}$ Raise 1.015 to the 42nd power to get

4672.12 = P(1.868847115) and divide to get P alone:

P = 2500.00

She invested $2500.00 initially.

6 0

3 years ago

Which expression is equivalent to 2(x+7)-18+4/5 ?

Vadim26 [7]

Answer:

4.7/5

Step-by-step explanation:

7 0

3 years ago

Please look at the image

Arada [10]

Answer:

Step-by-step explanation:

BED is the same angle as AEC

CEB is 180 - 150 (AEC) =30

7 0

3 years ago

What is 2-1 reversed? A.1 B.-1 C.2 D. -2

vovikov84 [41]

2-1 reversed is turning it around : 1-2 which equals -1 because there is one left over. B is your answer and hoped I helped!

5 0

3 years ago

Read 2 more answers

Pedro is building a playground in the shape of a right triangle he wants to know the area of the playground to help him decide h

shusha [124]

Answer:

Amount of sand=Area of triangle(ABC)=1/2*AB*BC

Dimension of rectangle as length=BC and breadth=AB

Step-by-step explanation:

Given:

Pedro building a playground in shape of right angled triangle.

To Find:

How much sand he need to buy

And if playground changed to rectangle what will be the dimensions.

Solution:

Consider a ΔABC be the play ground vertex of playground,

And AB and BC be the sides making right angle.

The sand required to fill ground will be the amount of are covered by the ABC triangle.

So,

Area Of triangle(ABC)=1/2* base* height

Here base will be BC and height =AB

Therefore Area of Triangle(ABC)=1/2*BC*AB

Depending on the lengths of base and height amount of sand will be decided.

Now,

For Rectangle dimensions,

We know that if same sized triangles composes each other forms a rectangle.

It requires two triangle to form one rectangle as follows

(Refer the attachment)

Same sized Triangle ACD is imposed on it to from rectangle ABCD.

So dimension for rectangle will be same as the triangle

Dimension=length and breadth

i.e. length=base of triangle=BC

Breadth=Height of triangle=AB

i.e Breadth =AB.

5 0

3 years ago