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vfiekz [6]
3 years ago
7

30 points and brainly if answered correctly ​

Mathematics
1 answer:
BartSMP [9]3 years ago
6 0

Answer:

21

Step-by-step explanation:

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A rectangle is twice as long as it is wide. If its area is 50 sq. yd., find the length.
sertanlavr [38]
A = L * W
A = 50
L = 2W

50 = W(2W)
50 = 2W^2
50/2 = W^2
25 = W^2
sqrt 25 = W
5 = W

L = 2W
L = 2(5)
L = 10 <==length is 10 yd
5 0
3 years ago
Pls help me calculate the inverse of y equals 2x over x-7
NeTakaya
Y = 2x/x-7

x = 2y/y-7

xy - 7x = 2y

-7x = 2y - xy

-7x = y(2-x)

y = -7x / 2-x

y = 7x / x-2


f-¹(x) = 7x / x-2

5 0
3 years ago
Find the rational zeros of the polynomial function, f(x)= 4x^3-8x^2-19x-7
Dima020 [189]

Answer:

The rational zero of the polynomial are \pm \frac{7}{4}, \pm \frac{1}{4},\pm \frac{7}{2},\pm \frac{1}{2},\pm 7,\pm 1  .  

Step-by-step explanation:

Given polynomial as :

f(x) = 4 x³ - 8 x² - 19 x - 7

Now the ration zero can be find as

\dfrac{\textrm factor of P}{\textrm factor Q} ,

where P is the constant term

And Q is the coefficient of the highest polynomial

So, From given polynomial ,  P = -7 , Q = 4

Now , \dfrac{\textrm factor of \pm P}{\textrm factor of \pm Q}

I.e  \dfrac{\textrm factor of \pm P}{\textrm factor of \pm Q} = \frac{\pm 7 , \pm 1}{\pm 4 ,\pm 2,\pm 1 }

Or, The rational zero are \pm \frac{7}{4}, \pm \frac{1}{4},\pm \frac{7}{2},\pm \frac{1}{2},\pm 7,\pm 1

Hence The rational zero of the polynomial are \pm \frac{7}{4}, \pm \frac{1}{4},\pm \frac{7}{2},\pm \frac{1}{2},\pm 7,\pm 1  .  Answer

7 0
3 years ago
81.08% of 37 hours<br> (Answer in minutes please)
Fofino [41]
It would be: 37 × 0.8108 = 30 hours (approx.)

Now, we know, 1 hour = 60 min.
so, 30 hours = 60 × 30 = 1800 min.

In short, Your Answer would be 1800 min

Hope this helps!
6 0
3 years ago
Read 2 more answers
HELP ME PLEASEEEE <br> HELPPPPPPPPPPPP
mario62 [17]

Answer:

  • y / cos x

Step-by-step explanation:

<u>Use trigonometry to help</u>

  • cos = adjacent side/hypotenuse
  • hypotenuse = adjacent side / cos

<u>Substitute values:</u>

  • Distance between the Sun and the Moon = y / cos x
7 0
3 years ago
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