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nika2105 [10]
3 years ago
12

Solve the following radical: 5√13 - 9√13

Mathematics
1 answer:
tankabanditka [31]3 years ago
7 0
Answer is -12 hope I helped.
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A copy machine makes
IrinaK [193]
This problem can be represented in a formula with fractions. To make it more simple, we are converting 5m30s to just pure seconds, which = 154 copies in 330 seconds.

You set up the formula like this: 154/330 = x/60. (it is x/60 because you want to know the x amount of copies per 60 seconds)

Cross multiply, you get 330x = 9240. Divide both sides by 330, you get:

 x = 28 copies.

The final answer is 28 copies per minute
7 0
3 years ago
Find S8 for the geometric series 3 + -6 + 12 + -24 +…
kirill115 [55]
I guess you are asking to find the sum of the first 8 terms. If so, then:
Sum = a₁(1-rⁿ)/(1-r), where a₁ is the 1st term,  r=common ratio and n=number of terms:
the 1st term a₁ =3
common ratio r = - 2 (since -6/3 = - 2, and 12/-6 = - 2, etc.)

Sum = 3[(1- (-2)⁸]/(1-2) = 3(1- 256)/(1/2)
Sum = -1530

6 0
3 years ago
Determine if triangle OPQ and triangle RST are or are not similar, and, if they are, state which triangle similarity shortcut (A
murzikaleks [220]

Answer:

SAS Similarity

Step-by-step explanation:

ΔOPQ similar to ΔRST

∠Q  = ∠T

OQ : RT = 28 : 84 = 1 : 3

QP : TS  = 16 : 48 = 1 : 3

The measures of two sides of ΔOPQ are proportional to the measure of two side of ΔRST and their included angles are congruent.  The triangles are similar by SAS Similarity.

4 0
3 years ago
A spinner has the numbers 1-12 what is the probability of spinning a number less than or equal to 5
valkas [14]

Answer:

5/12

Step-by-step explanation:

Assuming the each number is equally likely

1,2,3,4,5,6,7,8,9,10,11,12

There are 12 numbers on the spinner

Number less than or equal to 5: 1,2,3,4,5

There are 5 choices

P ( # < = 5) = Number less than or equal to 5/ total

                    =5/12

5 0
3 years ago
2. Kaleb went out to eat and spent $36. He wanted to include a 15% tip. What is
Likurg_2 [28]

Answer:

41.40

Step-by-step explanation: 36*.15=5.40, 36+5.40=41.40

3 0
3 years ago
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