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const2013 [10]
3 years ago
15

Which one or ones of the following statements is/are true?

Mathematics
1 answer:
EastWind [94]3 years ago
3 0
Only the first statement is true.
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WILL MARK BRANLIEST!! HELP ASAP + 30 POINTS!!!!!!!
ankoles [38]

Answer:

6 3/16

Step-by-step explanation:

4 9/16+ 1 5/8

= 4 9/16+ 1 10/16

= 5 19/16

= 6 3/16

3 0
3 years ago
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Calculate the sum of the infinite series
andriy [413]
ANSWER

S_ \infty = \frac{40}{3}

EXPLANATION

The given series is

20-10+5-...


The first term of the series is,

a_1=20

The common ratio of this series is,

r = \frac{ - 10}{20}

This simplifies to,

r = - \frac{1}{2}

The sum to infinity of this sequence is given by the formula,

S_ \infty = \frac{a_1}{1-r}

We substitute the above values into the formula to obtain,

S_ \infty = \frac{20}{1- - \frac{1}{2} }

This simplifies to,

S_ \infty = \frac{20}{1 + \frac{1}{2} }

We simplify the denominator to get,

S_ \infty = \frac{20}{ \frac{3}{2} }

This will finally give us,

S_ \infty =20 \times \frac{2}{3}

S_ \infty = \frac{40}{3}

The correct answer is A.
5 0
4 years ago
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A raise that regularly sells for $84.99 is 30% off. Find the discount and sales price
devlian [24]
1) Find 30% of 84.99 : 25.50
The discount is $25.50

2) Subtract 25.50 from 84.99 : 59.49
3 0
4 years ago
The expression - 380 + 15y represents a submarine that began at a depth of 380 feet below sea
Mice21 [21]

Answer: The submarine was 245 feet below sea level after 9 minutes.

Step-by-step explanation: Since y represents minutes, replace it with 9...

-380 + 15(9)

-380 + 135

-245

Since it’s negative, the submarine is still below sea level.

8 0
3 years ago
What is the solution to the equation -4(2x+3) - 2x + 1-(8x + 2)?<br> 30:00 HELP PLEASE 95 pOINTS
Sholpan [36]

Answer:

-18x   -13

Step-by-step explanation:

-4(2x+3) - 2x + 1-(8x + 2)

We cannot solve since there is no equals, but we can simplify

Distribute

-8x -12 -2x +1 -8x -2

Combine like terms

-8x-2x -8x  -12 +1 -2

-18x   -13

7 0
3 years ago
Read 2 more answers
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