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jekas [21]
3 years ago
13

You receive 9 text messages in 12 minutes. What is the rate of the text messages per hour?

Mathematics
2 answers:
MAXImum [283]3 years ago
8 0
1 hour=60 minutes 12×5=60
9×5=45
About 45 messages per hr
ikadub [295]3 years ago
4 0
9/12 would be your rate.
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Can someone please help me​
castortr0y [4]

Answer:

2x3 +10x2 -2x -10

Step-by-step explanation:

x2 + x + 5x + 5

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2x3 + 12x2 + 10x - 2x2 -12x - 10

2x3 +10x2 -2x -10

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3 years ago
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- \sqrt{\frac{25}{36} } =-\frac{5}{6}
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3 years ago
Is 9.36 less. than. 9.359
konstantin123 [22]

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4 0
4 years ago
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Find a possible formula for a fourth degree polynomial g that has a double zero at -2, g(4) = 0, g(3) = 0, and g(0) = 12. g(x) =
astraxan [27]
<h2>Answer:</h2>

The possible formula for a fourth degree polynomial g is:

         g(x)=\dfrac{1}{4}(x^4-3x^3-12x^2+20x+48)

<h2>Step-by-step explanation:</h2>

We know that if a polynomial has zeros as a,b,c and d then the possible polynomial form is given by:

f(x)=m(x-a)(x-b)(x-c)(x-d)

Here the polynomial g  has a double zero at -2, g(4) = 0, g(3) = 0.

This means that the polynomial g(x) is given by:

g(x)=m(x-(-2))^2(x-4)(x-3)\\\\i.e.\\\\g(x)=m(x+2)^2(x-4)(x-3)\\\\i.e.\\\\g(x)=m(x^2+2^2+2\times 2\times x)(x(x-3)-4(x-3))\\\\i.e.\\\\g(x)=m(x^2+4+4x)(x^2-3x-4x+12)\\\\i.e.\\\\g(x)=m(x^2+4+4x)(x^2-7x+12)\\\\i.e.\\\\g(x)=m[x^2(x^2-7x+12)+4(x^2-7x+12)+4x(x^2-7x+12)]\\\\i.e.\\\\g(x)=m[x^4-7x^3+12x^2+4x^2-28x+48+4x^3-28x^2+48x]\\\\i.e.\\\\g(x)=m[x^4-7x^3+4x^3+12x^2+4x^2-28x^2-28x+48x+48]\\\\i.e.\\\\g(x)=m[x^4-3x^3-12x^2+20x+48]

Also,

g(0)=12

i.e.

48m=12\\\\i.e.\\\\m=\dfrac{12}{48}\\\\i.e.\\\\m=\dfrac{1}{4}

Hence, the polynomial g(x) is given by:

g(x)=\dfrac{1}{4}(x^4-3x^3-12x^2+20x+48)

8 0
3 years ago
The quotient of a number r and 7 is no more than 18 inequality?
saveliy_v [14]

Answer:ikkdrrrrr

Step-by-step explanation:

8 0
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