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mr_godi [17]
3 years ago
9

At school 2 out of every 5 students in the sixth grade are members of the band which ratio represents the number of 6th graders

that are not members of the band
Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
7 0

Answer:3:5

Step-by-step explanation:

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In the past year Maya watched 34 movies that she thought were very good. She watched 40 movies over the whole year. Of the movie
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Answer:

90 percent

Step-by-step explanation:

the fraction is 90/100 so the percentage is 90%

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I will mark you as brainlinest for correct answer!!!!!pleaseeeee help!!!!!!
mel-nik [20]
A^2 - b^2 = (a+b)(a-b)

answer :

t^2 - 1
n^2 - 225 
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Find the perimeter. Use 3.14 for pi.
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Step-by-step explanation:

perimeter=4×6-1/4 ×2π×3=24-1/2×3.14×3=24-4.71=19.29cm

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3 years ago
Which of the following is a prime number? Select one: A. 19 B. 20 C. 21 D. 22
nexus9112 [7]

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Step-by-step explanation:

it only has 1 and itself

6 0
2 years ago
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If possible help me in this. I need to find the two odd numbers...​
Lelechka [254]

Part (a)

Consecutive odd integers are integers that odd and they follow one right after another. If x is odd, then x+2 is the next odd integer

For example, if x = 7, then x+2 = 9 is right after.

<h3>Answer:  x+2</h3>

========================================================

Part (b)

The consecutive odd integers we're dealing with are x and x+2.

Their squares are x^2 and (x+2)^2, and these squares add to 394.

<h3>Answer: x^2 + (x+2)^2 = 394</h3>

========================================================

Part (c)

We'll solve the equation we just set up.

x^2 + (x+2)^2 = 394

x^2 + x^2 + 4x + 4 = 394

2x^2+4x+4-394 = 0

2x^2+4x-390 = 0

2(x^2 + 2x - 195) = 0

x^2 + 2x - 195 = 0

You could factor this, but the quadratic formula avoids trial and error.

Use a = 1, b = 2, c = -195 in the quadratic formula.

x = \frac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\x = \frac{-(2)\pm\sqrt{(2)^2-4(1)(-195)}}{2(1)}\\\\x = \frac{-2\pm\sqrt{784}}{2}\\\\x = \frac{-2\pm28}{2}\\\\x = \frac{-2+28}{2} \ \text{ or } \ x = \frac{-2-28}{2}\\\\x = \frac{26}{2} \ \text{ or } \ x = \frac{-30}{2}\\\\x = 13 \ \text{ or } \ x = -15\\\\

If x = 13, then x+2 = 13+2 = 15

Then note how x^2 + (x+2)^2 = 13^2 + 15^2 = 169 + 225 = 394

Or we could have x = -15 which leads to x+2 = -15+2 = -13

So, x^2 + (x+2)^2 = (-15)^2 + (-13)^2 = 225 + 169 = 394

We get the same thing either way.

<h3>Answer: Either 13, 15  or  -15, -13</h3>
4 0
2 years ago
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