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marusya05 [52]
2 years ago
14

Is it true that a continuous function that is never zero on an interval never changes sign on that​ interval? give reasons for y

our answer?
Mathematics
1 answer:
Elden [556K]2 years ago
7 0
<span>Yes it is true that a continuous function that is never zero on an interval never changes sign on that interval. This is because of ever important Intermediate Value Theorem.</span>
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The fish tank in Paul's bedroom has a pump that will recirculate 75 gallons of water in 1/4 of an hour. Find the unit rate in ga
m_a_m_a [10]
We know that
(1/4) hour---------> 0.25 hour
if the pump r<span>ecirculate 75 gallons of water in -------------> 0.25  hour
 X </span>gallons of water in-----------------------------------------> 1 hour

X=75/0.25----------> x=300 gallons /hour

the answer is 300 gallons /hour
6 0
3 years ago
Sergio is creating a college fund for his son Diego, who is now 4 years old. Sergio put $1600 in a CD that will earn 8.25% simpl
Vesnalui [34]

well, Diego is 4 now, so by his 18th birthday that'll be 14 years later.

~~~~~~ \textit{Simple Interest Earned Amount} \\\\ A=P(1+rt)\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill & \$1600\\ r=rate\to 8.25\%\to \frac{8.25}{100}\dotfill &0.0825\\ t=years\dotfill &14 \end{cases} \\\\\\ A=1600[1+(0.0825)(14)]\implies A=1600(2.155)\implies A=3448

5 0
1 year ago
PLEASE SOMEONE HELP!! I need the answer right now
mel-nik [20]

Answer:

3rd one

Step-by-step explanation:

The other ones are all wrong because if you look at the first graph, it says every rectangle is 10. And you can see that the number of lunches sold are far more larger.

4 0
2 years ago
Where does the line y = 3x + 5 cross the y-axis?
crimeas [40]
C: at y=5

The formula is y=mx+b (b meaning the y-intercept) so that +5 is where your y-intercept is gonna be!
7 0
3 years ago
“The sum of 6 consecutive integers is 519” what is the third number in this sequence?
Rashid [163]
Let x be the first integer, then
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x + (x+1) + (x+2) + (x+3) + (x+4) + (x+5) = 519
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6x + 15 = 519
:
6x = 504
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x = 84
:
*****************************
Our sequence is
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84, 85, 86, 87, 88, 89
:
The third integer is 86
7 0
2 years ago
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