Help!!!!

Mathematics

1 answer:

Elodia [21]3 years ago

7 0

Answer:

110 students in the class

Step-by-step explanation: If this is helpful and correct please mark as brainliest!

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Work out the circumference of this circle.<br> Give your answer in terms of 3.142<br> r=6 mm

soldi70 [24.7K]

Answer:

C≈37.7

Step-by-step explanation:

C=2πr=2·π·6≈37.69911

<h3><em>i rounded</em></h3><h3><em /></h3>

6 0

3 years ago

Which amount is larger and by how much?

Solnce55 [7]

Answer:

a*(1 -0.5)*(1 +0.5) = 0.75a . . . . the original number "a" is larger

(a/(0.75a) -1) * 100% = 33 1/3% . . . . the original number is larger by 33 1/3% of the revised number

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Solve.<br> x^2+9x+2=0<br> thanks!

shtirl [24]

Step one:
ALWAYS set equation equal to zero, which in this case has already been done for us.

Step two:
Figure out what formula you need to use in order to solve in this case I'd use the Quadratic formula.

a=1
b=9
c=2

Quadratic formula:
$x = \frac{ - b + - \sqrt{(b) ^{2} - 4(a)(c)} }{2(a)}$
Then you would plug in the information.
$x = \frac{ - 9+ - \sqrt{(9) {}^{2} - 4(1)(2) } }{2(1)}$
The solve for what is underneath the square root ONLY.
$x = \frac{ - 9 + - \sqrt{73} }{2}$
Since you cannot solve this any further, your final two answers are...
$x = \frac{ - 9 + \sqrt{73} }{2}$
$x = \frac{ - 9 - \sqrt{73} }{2}$

3 0

3 years ago

How do you write 0.000010 in scientific notation?

konstantin123 [22]

Answer:

1 × 10^(-5)

Step-by-step explanation:

7 0

3 years ago

suppose you work at a job where your pay varies directly as the number of hours you work.Your pay for 7.5 hours is $45. Find you

Maksim231197 [3]

You will get paid $180 because there are 4, 7.5 hours in 30 hours so you multiply $45*4 and you get $180

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