3 years ago

Five times a number is added to two times its square. if the result is 168, find the number

Mathematics

1 answer:

Andreas93 [3]3 years ago

3 0

5x+(2x)^2= 168 now solve this

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What is 3+20 x 70+5=

daser333 [38]

Answer:

1725

Step-by-step explanation:

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What is 21 X 21 ???? <br> 3 3

Sergeeva-Olga [200]

Answer: 441

Step-by-step explanation:

21 x 21 = 441

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-3(n+5)=-21what is ghe answer<br><br>

charle [14.2K]

-3n-15=-21
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3 years ago

Pls helppp me this is very very urgent

Nat2105 [25]

Answer:

1. 5040

2. 20

Step-by-step explanation:

1. using the formula for permutation

nPr=n!/(n-r)!

10P4 = 10!/(10-4)!

=10*9*8*7*6!/6!

then we are left with

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2.using the formula for combination

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=6*5*4/3*2*1

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3 years ago

The approximate distance between J and K is units. The approximate distance between K and L is units. The approximate distance b

Dima020 [189]

Count the distance d, which gives you 7.

Use Pythogarean theorem to find c:
${a}^{2} + {b}^{2} = {c}^{2}$
Plug in the numbers:
${4}^{2} + {3}^{2} = {c}^{2} \\ \\ = 16 + 9 \\ \\ = 25 \\ \\ c = \sqrt{25} = 5$
c is 5.

Same thing with g:
${e}^{2} + {f}^{2} = {g}^{2} \\ \\ {g}^{2} = {4}^{2} + {4}^{2} \\ \\ = 16 + 16 \\ \\ = 32 \\ \\ g = \sqrt{32} = 4 \sqrt{2} = 5.66$
g equals 5.66.

7 0

4 years ago