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Andrews [41]
4 years ago
13

What is 9 copies of 3.65

Mathematics
1 answer:
Nataly_w [17]4 years ago
3 0
I believe that you are doing multiplication with this.

So…    9 x 3.65 = 32.85

Hope this helps. :)
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2×10,000 + 8×1000 + 5×100+6×10+1

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Use the formula pH = log (1/H*) to find the pH of the substance given its concentration
Vaselesa [24]
We can use the subtraction property of logs to expand the right side of the equation:

log(1/H*) = log(1) - log(H*)

No matter what base we’re using, log(1) = 0, so this simplifies to -log(H*). We’re also given a pH value of 3.6, so we can substitute this value into the original equation along with -log(H*) to get

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-3.6 = log(H*)

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6 0
2 years ago
A ball is shot from a cannon into the air with an upward velocity of 65 ft/sec. The equation that gives the height (h) of the ba
Sveta_85 [38]

Answer:

Step-by-step explanation:

Find AOS

X = -b/2a

X = -65/2(-14)

X = -65/-28

X = 2.32 secs

t = 2.32secs

A) y value when t = 2.32 is the maximum height.

Substitute t in the equation.

h(t)= -14t^2+65t+1.75

h(t)= (-14 * 2.32²) + (65 * 2.32) + 1.75

= (-14 * 5.38 ) + (65 * 2.32) + 1.75

= -75.35 + 150.8 + 1.75

= 77.2 ft

Maximum height attained by the ball = 77.2 ft

B) Time the maximum height achieved = 2.32secs

C) The ball off of the ground when it was shot is well t = 0

Substitute t in equation

h(t)= -14t^2+65t+1.75

h(0)= (-14 * 0²) + (65 * 0) + 1.75

= 0 + 0 + 1.75ft

The ball is 1.75ft off the ground when it was shot.

7 0
4 years ago
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