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lisabon 2012 [21]
3 years ago
15

I need the answer to these questions

Mathematics
2 answers:
vagabundo [1.1K]3 years ago
7 0
Nothing random about 19, he's generating the terms with a sequence
20.) 12, actually lcm (4,3)=12
21.) 35, 7*5=35
22.) all multiples of 28
=1*28 (1 box of 28/ 28 boxes of 1)
=2*14 (14 boxes of 2/ 2 boxes of 14)
=4*7
actually 28=2^2 * 7 by Fundamental Thm of Arithmetic
2*2*7
2*14
4*7
28*1
so there are 4 ways depending on how you arrange boxes and crayones, excluding 1,28

Harrizon [31]3 years ago
5 0
19)E. 57
20)C.12
21)A. 35
22)B.4
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Give the values of a, b, and c needed to write the equation's general form.<br>1/4x^2+5=0
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Let's solve your equation step-by-step.

\frac{1}{4} x^2+5=0

For this equation: a=0.25, b=0, c=5

0.25x^2 + 0x + 5 = 0

Step 1: Use quadratic formula with a=0.25, b=0, c=5.

x = \frac{-b ± \sqrt{b^2 - 4ac} }{2a}

x = \frac{-(0) ± \sqrt{(0)^2 -4 (0.25) (5)  } }{2(0.25)}

x = \frac{0 ± \sqrt{-5} }{0.5}

Answer : No Real Solutions.

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If this helped you, could you maybe give brainliest..?

Also Have a great day/night!

❀*May*❀

5 0
3 years ago
lily swims a 100-meter race. she swims the first half in 27.8 seconds. she swims the second half in 30.12 seconds. how long does
Luden [163]

we know that

1) Lily swims a 100-meter race

2) She swims the first half in 27.8 seconds

3) She swims the second half in 30.12 seconds

so

To find the total time to swim the whole race sum the time in the first half plus the time in second half

(27.8+30.12)=57.92\ seconds

therefore

<u>the answer is</u>

57.92\ seconds

3 0
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So if u were to use a calculator, which you probably might need, you would take the radius, square it by 3, multiply by 4 and then divide by 3.
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