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USPshnik [31]
4 years ago
13

AH HELP ASAP I GIVE BRAINLIEST!!!

Mathematics
2 answers:
Gelneren [198K]4 years ago
6 0

Answer: 3 √ 7

Step-by-step explanation:

mihalych1998 [28]4 years ago
4 0

Answer:

C) 3√7

Step-by-step explanation:

You simply multiply the numbers inside.

3 times 21 is 63.

Then you simplify.

3 x 21

3 x 3 x 7

3√7

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For a contest, Dominique is stacking 3 super-long pens lengthwise on top of each other. Each pen is 2 feet long. If she succeeds
krek1111 [17]
Ok so 12 inches = 1foot so 12 x 3= 36 so 36 inches is your anwser :P
~Riley
5 0
3 years ago
Read 2 more answers
How do you solve both of these problems? Please helpp
TEA [102]
45mi |1 ft. | 1 hr
1hr. |0.00189394 mi|3600sec
(45*1*1)/(1*0.00189394*3600)
45/6.818184=
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7 0
3 years ago
Determine the recursive function that defines the sequence.
Strike441 [17]
<h2>Answer:</h2>

Option: C is the correct answer.

    C.   f(1)=4\\\\f(n)=5\cdot f(n-1)\ ;\ n\geq 2  

<h2>Step-by-step explanation:</h2>

Recursive Formula--

It is the formula which is used to represent the nth term of a sequence in terms of (n-1)th term of the sequence.

Here we are given a table of values by:

            n            f(n)

            1              4

            2             20

            3             100  

i.e. when n=1 we have:

f(1)=4

Also,

f(2)=20\\\\i.e.\\\\f(2)=5\cdot 4\\\\i.e.\\\\f(2)=5\cdot f(1)

Also,

f(3)=100\\\\i.e.\\\\f(3)=5\cdot 20\\\\i.e.\\\\f(3)=5\cdot f(2)

Hence, the recursive formula is:

f(n)=5\cdot f(n-1)\ for\ n\geq 2

5 0
4 years ago
Need help, timed assignment !!
Natali5045456 [20]

Answer:

B

Step-by-step explanation:

4 0
3 years ago
Find the x............... <br><br><br><br><br><br><br><br><br>​
lana [24]

Answer:

Step-by-step explanation:

Remark

You are going to use the Pythagorean Theorem. The trick is to find the length of the leg making up the base of the triangle.

That base is equal to the difference between the two bases.

Solution

The base of the triangle = 2x + 1 - (x + 3)      Remove the brackets.

base = 2x + 1 - x - 3

base = x - 2

Now the height of the trapezoid is also the second leg of the triangle. Apply the Pythagorean Theorem.

c^2 = a^2 + b^2

a = x - 2

b = x + 4

c = 2x

4x^2 = (x - 2)^2 + (x + 4)^2                              Expand the brackets

4x^2 = x^2 - 4x + 4 + x^2 + 8x + 16                Collect like terms

4x^2 = 2x^2 + 4x + 20                                    Subtract the right side from the left.

4x^2 - 2x^2 - 4x - 20 = 0

2x^2 - 4x - 20 = 0                                            Divide by 2

2x^2/2 - 4x/2 - 20/2 = 0              

x^2 - 2x - 10 = 0

x = - b +/- sqrt(b^2 - 4*a*c)/ 2a

a = 1

b = - 2

c = - 10

x = (- -2 + / - sqrt((-2)^2 - 4*(1)*(-10) ) / 2

x = (2 + / - sqrt(4 + 40 ))/2                      Only the plus root has any meaning.

x = ( 2 + sqrt(44 ) )/2

x = ( 2 + 2*sqrt(11) ) / 2

x = 1 + sqrt(11)

sqrt(11) = 3.3166

x = 1 + 3.3166

x = 4.3166

8 0
3 years ago
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