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Anvisha [2.4K]
3 years ago
8

Can anyone help me????

Mathematics
2 answers:
RoseWind [281]3 years ago
6 0
6a.  3= 12 cm 7=28 cm
6b. L= 90 cm
6c 3= 9cm squared 7= 49cm squared
6d. 11 cm for each length
hope this helped
saul85 [17]3 years ago
5 0
6a    perimeter  is 12 cms  and 28cms.

6b side length is 90 cms

6c areas 9sq cm and 49 sq cms

6d 11 cms
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Write a rule for the nth term of the geometric sequence if r = 1/4 and a3 = 2.
GarryVolchara [31]

Answer:

a_{n} = 32(\frac{1}{4})^{n-1}

Step-by-step explanation:

The nth term of a geometric sequence is given by the following equation.

a_{n+1} = ra_{n}

In which r is the common ratio.

This can be expanded for the nth term in the following way:

a_{n} = a_{1}r^{n-1}

In which a_{1} is the first term.

This means that for example:

a_{3} = a_{1}r^{3-1}

So

a_{3} = a_{1}r^{2}

2 = a_{1}(\frac{1}{4})^{2}

2 = \frac{a_{1}}{16}

a_{1} = 32

Then

a_{n} = 32(\frac{1}{4})^{n-1}

4 0
3 years ago
-3 - 3x = -4(2x + 7)
Marizza181 [45]

Answer :    x=−5

Step-by-step explanation: Step 1: Simplify both sides of the equation.

−3−3x=−4(2x+7)

−3+−3x=(−4)(2x)+(−4)(7)(Distribute)

−3+−3x=−8x+−28

−3x−3=−8x−28

Step 2: Add 8x to both sides.

−3x−3+8x=−8x−28+8x

5x−3=−28

Step 3: Add 3 to both sides.

5x−3+3=−28+3

5x=−25

Step 4: Divide both sides by 5.

5x /5 =  −25 /5

x=−5

Answer:

x=−5

5 0
2 years ago
One number is 1/2 of another the sum of the number is 72 find the numbers
Anton [14]
The answer for the question is 36 , 36
5 0
3 years ago
The algebraic expression for​ "the quotient of 73 and​ x" is
lyudmila [28]

Answer

it could be 73/x

Step-by-step explanation:

3 0
3 years ago
VERY IMPORTANT I NEED HELP!!!
Advocard [28]

Answer:

2√3

Step by step Explanation:

=  >  \frac{ \sqrt{96} }{ \sqrt{8} }  \\  \\  =  >  \frac{ \sqrt{12 \times 8} }{ \sqrt{8} }  \\  \\  =  >  \frac{ \sqrt{12} \times  \sqrt{8}  }{ \sqrt{8} }  \\  \\  =  >  \sqrt{12}  \\  \\  =  >  \sqrt{4 \times 3}  \\  \\  =  >  \sqrt{2 \times 2 \times 3}  \\  \\  =  > 2 \sqrt{3}

3 0
3 years ago
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