3 years ago

The sum of x and 2 and itr is and algebraic expression

Mathematics

1 answer:

Masja [62]3 years ago

3 0

Sum is add
sum of x and 2 means x+2
nothing to it

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The length of a rectangle is 8 1/2 inches and the width is 3 1/4 inches. What is the ratio, using whole numbers, of the length t

frosja888 [35]

Short answer 34/13
Start by converting both to improper fractions.

8 1/2 = (2*8 + 1)/2 = 17/2

3 1/4 = (3*4 + 1)/4 = 13/4

Next set up a 4 layer fraction

$\dfrac{\dfrac{17}{2}}{\dfrac{13}{4} }$

Invert the lower fraction and multiply $\dfrac{17}{2}* \dfrac{4}{13}$

Cancel the 2 and the 4 leaving you with a 2 in the numerator. $\dfrac{17*2}{13} =\dfrac{34}{13}$

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3 years ago

Consider a sequence given by the formula f(n)=3n-1 starting with n=1. Generate the first 5 terms of the sequence

Rufina [12.5K]

Answer:

The first 5 terms are 2, 5, 8, 11, 14.

Step-by-step explanation:

You use the formula to find out each term.
f(n)=3n-1 starting with n=1. If n=1 that is the 1st term, if n=2 that is the 2nd term, and so on. n means what number term it is.
Now to find each term:

n=1: f(1)= 3(1)-1= 3-1= 2 The 1st term is 2
n=2: f(2)= 3(2)-1= 6-1= 5 The 2nd term is 5
n=3: f(3)= 3(3)-1= 9-1=8 The 3rd term is 8
n=4: f(4)= 4(3)-1= 12-1= 11 The 4th term is 11
n=5: f(5)= 5(3)-1= 15-1= 14 The 5th term is 14

So the first 5 terms are 2,5,8,11,14

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3 years ago

There are 24 students in a science class .Mr Sato will give each pair of students 3 magnets .so far,Mr Sato has given 9 pair of

BartSMP [9]

9 pairs = 18 people
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3 years ago

I dont understand what i did wrong please help

Degger [83]

Answer:

the image is not clear dear, please write another question with a clear image or type it