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aleksandrvk [35]
3 years ago
9

(8-3) x 3 x 3 + (5+15):4

Mathematics
1 answer:
nlexa [21]3 years ago
6 0

Step-by-step explanation:

I hope this is the answer the last sign is not clear if it is proportion then the answer is 9:16

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Please help me with this.... 4x+3=23​
MArishka [77]

Answer:

x=5

Step-by-step explanation:

23-3= 4x or 20

that means 4x is equal to 20

20 divided by 4 is 5

so x is equal to 5

6 0
3 years ago
The opening of the tunnel can be modeled by the graph of the equation y=-0.18x^2+4.4x-12 where x and y are measured in feet. Fin
Molodets [167]
1. To find the vertex of a parabolla whose equation is written in the standard form, you must apply the following proccedure:
 
 2. You have:
 
 y=-0.18x²+4.4x-12 
 
 a=-0.18
 b=4.4
 
 3. You must apply the following formula:
<span> 
 x=-b/2a
 x=-4.4/2(-0.18)
 x=-4.4/-0.36
 x=12.22
 
 4. When you susbtitute x=12.22 into the equation </span>y=-0.18x²+4.4x-12, you obtain:
 
 y=-0.18x²+4.4x-12
 y=-0.18(12.22)²<span>+4.4(12.22)-12
</span> y=14.88 feet
 
 5. The answer is: The maximum height of the tunnel is <span>14.88 feet</span>
5 0
3 years ago
Hi can you pls help me pls yes do all
ruslelena [56]
Base x Height / 2 = Area of triangle.
6 0
2 years ago
Is -0 greater then 0
DENIUS [597]

Answer:

0 is greater than -0

Hope this helps

3 0
3 years ago
Read 2 more answers
Can u guys PLEASE answer this question ASAP. A fat cat that was initially 12 kg reduces its weight by 10% each month. How long d
Mkey [24]

Answer:

It takes at least 7 months for the cat to be at least 6 kg lighter than the original weight.

Step-by-step explanation:

Use exponential decay formula:

A = P (1-r)t

A = amount decreased to

P = original amount

r = rate of decrease

t = time

 

6 ≥ 12 (1-0.10)t      divide both sides by 12

0.5 ≥ (0.9)t            take log of both sides

log (0.5) ≥ log (0.9)t     power rule of logs lets the exponent t drop to front of log to become a factor

log (0.5) ≥ t log(0.9)     divide both sides by log(0.9) which is negative so reverse the inequality sign

log (0.5) / log (0.9) ≤ t     use calculator

6.57 ≤ t

 

It takes at least 7 months for the cat to be at least 6 kg lighter that original weight.

 

check:

12 (0.9)7≈ 5.73

12 (0.9)6 ≈ 6.37

5 0
3 years ago
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