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kirza4 [7]
3 years ago
15

The rectangle shown has a perimeter of 84 cm and the given area. Its length is 6 more than 5 times its width. Write and solve a

system of equations to find the dimensions of the rectangle.
Mathematics
1 answer:
inysia [295]3 years ago
6 0
The answer is that the Width is equal to 10 and the length is equal to 36
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Find the first 4 terms of the Arithmetic sequence.<br> f(n) = f(n-1) + 5<br> f(1) = -2
nexus9112 [7]
<span>f(n) = f(n-1) + 5   simply means

the next term or f(n), will have a value of
the one before it, or f(n-1), +5

so.. you're looking for the 4th term, that means f(4)
to get 4th term then, that will be the 3rd term plus 5,
whatever the 3rd term is

now... f(1) = -2, simply means, the term 1, or f(1), or first term, is -2

now to find a term value in an arithmetic sequence </span>\bf f(n)=f(1)+(n-1)d\\\\&#10;\begin{cases}&#10;n=n^{th}\ term\to &4\\&#10;f(1)=\textit{first term}\to &-2\\&#10;d=&#10;\begin{array}{llll}&#10;\textit{common difference, or amount}\\&#10;\textit{added to get the next term}&#10;\end{array}\to &5&#10;\end{cases}\\\\&#10;-----------------------------\\\\&#10;thus&#10;\\\\&#10;f(4)=f(1)+(4-1)5

and I'm sure you know what f(1) is, so, just plug it in, to get f(4), or 4th term
5 0
3 years ago
This is for algebra 1
allsm [11]
X+y=12 -- 1
3x+2y=29 -- 2

(1)x2
2x+2y=24 -- 1
(2)-(1)
x=5

Sub x into 1
x+y=12
5+y=12
y=7

Her two numbers are 5 and 7
3 0
3 years ago
How to write 9,009,009 in word form
DaniilM [7]
Nine million nine thousand and nine
7 0
3 years ago
Read 2 more answers
At a university, 12% of students smoke. Calculate the expected number of smokers in a random sample of 140 students from this un
Masteriza [31]

Answer:

a) The expected number of smokers in a random sample of 140 students from this university is 16.8 smokers.

b) No, it is unlikely that smoking habits and waking up early to go to the gym on Saturday are independent.

Step-by-step explanation:

To calculate the expected numbers of smokers in a sample with size n=140 and proportion p=12%, we use the expected value of the binomial distribution:

E(x)=n\cdot p=140\cdot 0.12=16.8

The expected number of smokers in a random sample of 140 students from this university is 16.8 smokers.

If we take a sample at the opening of the gym, the sample is not expected to be representative of the population of the students. Most of the students that go to the gym usually have healthy habits, so the proportions of smokers is expected to be lower than the average of the university population.

4 0
3 years ago
Please help! will give brainliest for the best helper! or first to answer aka meaning first to help :)
AleksAgata [21]

Answer:

angle 2 = 37º

Step-by-step explanation:

When two lines intersect they make vertical angles, which are angles directly across from another. Vertical angles are always congruent.

4 0
3 years ago
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