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Yakvenalex [24]
3 years ago
11

HELP ILL MARK BRAINLIEST

Mathematics
1 answer:
m_a_m_a [10]3 years ago
8 0

Answer:

5.3<em>f</em>

Step-by-step explanation:

***If you found this answer please press the heart button and mark me brainliest, thanks!***

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What is the volume of a sphere with a diameter of 9 in.?
a_sh-v [17]
Answer: 121.5 in³

Explanation:

\textnormal{Volume }=  \cfrac{4}{3}  \pi (4.5)^3 = 121.5 \pi \ in^3
6 0
3 years ago
Read 2 more answers
A positive integer is twice another.the sum of the reciprocal of the two positive integer is 3/14. Find the integers
icang [17]

Answer:

\huge\boxed{14\ \text{and}\ 7}

Step-by-step explanation:

n,\ m-\text{positive integer}\\\\n=2m-\text{a positive integer is twice another}\\\\\dfrac{1}{n}+\dfrac{1}{m}=\dfrac{3}{14}-\text{the sum of the reciprocal of the two positive integer is }\ \dfrac{3}{14}\\\\\text{We have the system of equations:}\\\\\left\{\begin{array}{ccc}n=2m&(1)\\\dfrac{1}{n}+\dfrac{1}{m}=\dfrac{3}{14}&(2)\end{array}\right

\text{Substitute (1) to (2):}\\\\\dfrac{1}{2m}+\dfrac{1}{m}=\dfrac{3}{14}\\\\\dfrac{1}{2m}+\dfrac{1\cdot2}{m\cdot2}=\dfrac{3}{14}\\\\\dfrac{1}{2m}+\dfrac{2}{2m}=\dfrac{3}{14}\\\\\dfrac{1+2}{2m}=\dfrac{3}{14}\\\\\dfrac{3}{2m}=\dfrac{3}{14}\Rightarrow2m=14\qquad\text{divide both sides by 2}\\\\\dfrac{2m}{2}=\dfrac{14}{2}\\\\\boxed{m=7}

\text{Substitute it to (1):}\\\\n=2\cdot7\\\\\boxed{n=14}

8 0
3 years ago
Given a = -3 and b=4 and c=-5, evaluate a+b/c<br><br> -1/5<br> 1/5<br> -7/5
Evgesh-ka [11]

Answer:

-1/5

Step-by-step explanation:

i don't know for sure but that seems like the one that would make the most sense

5 0
4 years ago
Read 2 more answers
A mistake was made in the steps shown to simplify the expression
aleksandr82 [10.1K]

Answer:

wheres the rest of it

Step-by-step explanation:

8 0
3 years ago
___, 46 ____, 32, 25, ___
sattari [20]

Answer:

D

Step-by-step explanation:

32-25 = 7

32+7 =39

46+7 =53

25-7 =18

PLZ MARK AS BRAINLIEST

4 0
3 years ago
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