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3 years ago

12

solve these magic squares using positive and negative numbers equal and he shown number. use 0 if u have to as well

1 answer:

Pani-rosa [81]3 years ago

6 0

Answer:

-1 |4 |-7|6

-6|5 |0 |3

8| -5|2 |-3

1|-2 |7 | -4

Hope this helps

Step-by-step explanation:

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I need help finding CR, AB, and CAB

aleksandrvk [35]

Answer:CR= 53

AB = 118

CAB = 236

Step-by-step explanation: a whole is circle is equal to 360 degrees and when you see the two parts which dint have an angle, they look the same size. So I pluses 53 and 71 than subtracted from 360. Which then I divided it by two then you get the angle for A to B.

Hope this helped and hope this is the correct answer.

4 0

3 years ago

PLEASE HELP!!!<br> If f(x) = -2x^2 + x - 5, what is f(3)?

kow [346]

Answer:

<u>f(3) = -10</u>

Step-by-step explanation:

<u>Given</u>

f(x) = -2x² + x - 5

<u>Solving</u>

To find f(3), substitute x = 3 in the function
⇒ f(3) = -2(3)² + (3) + 5
⇒ f(3) = -2(9) + 8
⇒ f(3) = -18 + 8
⇒ <u>f(3) = -10</u>

4 0

2 years ago

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Change 225° to radian measure in terms of pi

a_sh-v [17]

Answer:

$\frac{5\pi }{4}$

Step-by-step explanation:

To convert from degree to radian measure

radian measure = degree measure × $\frac{\pi }{180}$

Hence

radian measure = 225 × $\frac{\pi }{180}$ = $\frac{225\pi }{180}$ = $\frac{5\pi }{4}$

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3 years ago

Two trains leave two different stations 300 km apart; the first starts at noon and the second at 12 15 h. Travelling on parallel

alexgriva [62]

Answer:

See below

Step-by-step explanation:

From noon to 1500 is three hours

train A then travels <u> 3x</u> where x = speed in km/hr

train B only travels for 2.45 hours and covers

<u> 2.45 ( x + 15) </u> where x + 15 is its speed in km/hr

these two values sum to the 300 km distance

3x + 2.45 ( x + 15) = 300

3x + 2.45 x + 36.75 = 300

x = 48.3 km/hr x+15= 63.3 km / hr

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2 years ago

Integers from least to greatest 11 -3.5 -10 6 -12<br> HELPPPP FAST PLEASE

Aliun [14]

Answer:-12, -10, -3.5, 6, 11

Step-by-step explanation:

7 0

3 years ago

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