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slamgirl [31]
3 years ago
12

Add the following expressions: 3r - 7 and -10r + 2 -13r-9 13-5 O -7r - 9 -7r -5

Mathematics
2 answers:
Ksju [112]3 years ago
5 0

Answer:

Step-by-step explanation:

-7r - 5

<em>Hope that helps! :)</em>

<em></em>

<em>-Aphrodite</em>

love history [14]3 years ago
3 0

Answer:

-7r - 5

Step-by-step explanation:

3r - 7 and -10r + 2

*remember that you can only combine the like terms

3r - 10r = - 7r

-7 + 2 = -5

Final Answer: -7r - 5

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What is the arithmetic rule to the sequence: <br>1/3,4/3,7/3<br><br>find: f(10)
makkiz [27]

The the value of f(n)=\frac{28}{3}

Step-by-step explanation:

The Arithemetic sequence is given as a,a+d,a+2d......a(n-1)d

and f(n)=a(n-1)d

The given sequence is 1/3,4/3,7/3...

By comapring with Arithemetic sequence,

we get a=1/3

a+d=4/3

1/3 + d = 4/3

d=1

To find value of f(10):

take n=10

f(n)=\frac{1}{3} +(10-1)1

f(n)=\frac{1}{3} +(9)1

f(n)=\frac{1+27}{3}

f(n)=\frac{28}{3}

8 0
3 years ago
Two neighboring towns, Nash Town and Bay Town, were surveyed, and their populations were found to be x 1/3 + 2x 1/5 and 3x 1/3-
raketka [301]

Answer:

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4 0
2 years ago
A triangle has the side lengths of 12 cm, 15 cm, and 20 cm. Classify it as acute, obtuse, or right.
umka21 [38]

Answer:

Obtuse  

Step-by-step explanation:

Plugging the numbers into the Pythagorean Theorem (a^2 + b^2 = c ^2)

20^2 = 12^2 + 15^2

400 > 144 + 225

400 > 369

Because of the Converse of the Pythagorean Theorem, which tells us if c is greater than a+b, it is obtuse

5 0
3 years ago
What is the product? 2y/y-3 multiplied by 4y-12/2y+6
solong [7]
<h2>Answer:</h2>

<u>The answer is </u><u>4y / y+3</u>

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

See the attached figure

7 0
3 years ago
Consider the equation 12x - 15y = 70
Wewaii [24]

Answer:

X= 35/6

Y= -14/3

Step-by-step explanation:

To solve for X:

Replace Y by 0:

12y=70

X=35/6

To solve for Y:

Replace X by 0:

-15y=70

Y= -14/3

3 0
2 years ago
Read 2 more answers
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