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Greeley [361]
3 years ago
14

Plz solve this as fast as u can ​

Mathematics
1 answer:
cluponka [151]3 years ago
8 0

Step-by-step explanation:

The value of x is 40 degree

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The mean crying time of infants during naptime at a local preschool is 12 mins. The school implements a new naptime routine in a
love history [14]

Answer:

Step-by-step explanatio n: ummmoirnd iehcn

7 0
3 years ago
A falling object travels a distance given by the formula d=3t+5t2, where d is measured in feet and t is measured in seconds. How
Romashka-Z-Leto [24]

Answer:

<em>4.52secs</em>

Step-by-step explanation:

Given the height of a falling object expressed as;

d=3t+5t^2

If the object travel 84 feet, we are to find the time t it takes to travel. On substituting;

84 = 3t+5t^2

3t+5t^2 - 84 = 0

t = -5±√25-4(3)(-84)/2(3)

t = -5±√25+1008/6

t = -5±32.14/6

t = -5+32.14/6

t = 27.14/6

<em>t = 4.52 secs</em>

<em>Hence it will take 4.52secs for the object to travel 84feet</em>

8 0
2 years ago
(9b+7)+(4x-3)+(8n+5)=? ​(Simplify your​ answer.)
uysha [10]

Answer:

9b+8n+4x+9

Hope that helps!

8 0
2 years ago
Read 2 more answers
Solve the logarithmic equation. Be sure to reject any value of x that is not in the domain of the original logarithmic expressio
KIM [24]

Answer:

Therefore x=9

Step-by-step explanation:

Give that,

log x+ log (x-3) = log 54

log x(x-3) =log 54             [    log_ca+log_c b=log_c(ab)   ]

x(x-3) = 54

Now expand the above equation to get a quadratic equation

x²-3x=54

⇒x²-9x+6x-54=0

⇒x(x-9)+6(x-9)=0

⇒(x-9)(x+6)=0

⇒x-9=0  or, x+6=0

⇒x=9,-6

Now putting x= -6 in the given expression,

log(-6)+log(-6-9)=log 54.

Since log (-6) does not exist.

Therefore x=9

8 0
3 years ago
What’s the simplified value of 12.4x(-6.3)
Eddi Din [679]

Answer:

-78.12

Step-by-step explanation:

5 0
2 years ago
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