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BaLLatris [955]
3 years ago
5

What is 3a2 + a2 added to a + 6?

Mathematics
2 answers:
DENIUS [597]3 years ago
8 0

Answer:

4a2+a+6

Step-by-step explanation:

can I get brainliest please

leva [86]3 years ago
7 0
4a2 +a+6 I think idk I might be wrong
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A person breathes 2.5 x 10^-4 in about cubic meters of air per second. How long does it take to breathe in 2.5 cubic meters of a
Ipatiy [6.2K]

Answer:

10⁴ seconds

Step-by-step explanation:

Given that,

A person breathes 2.5\times 10^{-4} in about cubic meters of air per second.

We need to find time taken to breathe 2.5 cubic meters of air.

In 1 sec = 2.5\times 10^{-4} m³ of air breathe

Let in x seconds, 2.5 m³ of air taken by the person.

x=\dfrac{2.5}{2.5\times 10^{-4}}\\\\x=10^4\ s

Hence, in 10⁴ seconds 2.5 m³ of air is taken by the person.

5 0
3 years ago
What is the formula for strontium phosphide
Orlov [11]
The formula for strontium phosphide is Sr3(PO4)2.

Hopefully this helps! :)
6 0
3 years ago
If x equals 5 what is 72+72+18x+9+18x+9
romanna [79]

Answer:

342

Step-by-step explanation:

x=5

72+72+18(5)+9+18 (5)+9=342

7 0
3 years ago
Find the value of x, rounded to the nearest tenth. <br>a) 2.7<br>b) 4<br>c) 3.8<br>d) 2.9​
sertanlavr [38]
I Think The answer is a I hope it helps My friend Message Me if I’m wrong and I’ll change My answer and fix it for you
4 0
3 years ago
Read 2 more answers
The amount of water dispensed by a water dispenser is normally distributed,
Contact [7]

Answer:

The correct answer is - C.  11.45 ounces to 11.75 ounces.

Step-by-step explanation:

According to the empirical rule of the distribution for 68% falls under the normal curve falls within 1 standard deviation of the mean.

That is:

μ±δ

From the given information, the mean is

μ = 11.60

and the standard deviation is

δ = 0.15

We substitute the given parameters to obtain;

11.60±0.15

11.75 and 11.45

This means the lower limit is

11.45

and the upper limit is

11.75

3 0
3 years ago
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