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4 years ago

For what values of a is the value of the binomial 2a−1 smaller than the value of the binomial 7−1.2a?

2 answers:

8 0

To solve the problem shown bove you must apply the proccedure shown below:

1. You have that:

2a-1<7−1.2a
2a+1.2a<7+1
3.2a<8
a<8/3.2
a<2.5

2. Therefore, for what values of a is the value of the binomial 2a−1 smaller than the value of the binomial 7−1.2a?

As you can see above, the answer for this question is:

All the values of a between -∞ and 2.5

aleksandrvk [35]4 years ago

3 0

I actually got this answer from the other guy who answered here : Carlosego.

He had the right answer but thought about it too much and added some extra information that lead the answer off track. If you went back to what "a" is, you would get a<2.5.

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Four less that the quotient of six and two

san4es73 [151]

(6/2) - 4 would be your answer

3 0

3 years ago

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A projectile is launched from the ground at an angle of theta above the horizontal with an initial speed of v in ft/s. The rang

VARVARA [1.3K]

Answer:

$\theta=24.4^\circ$

Step-by-step explanation:

The formula you wrote has the fraction the other way around. You can find that the range of a projectile is in reality approximated by the equation $x=\frac{v^2}{g} sin(2\theta)=\frac{v^2}{32ft/s^2} sin(2\theta)$ , where we will use ft for distances.

From the given equation we have then $\frac{x32ft/s^2}{v^2} =sin(2\theta)$ , which means $\theta=\frac{Arcsin(\frac{x32ft/s^2}{v^2})}{2}$ since the arcsin is the inverse function of the sin.

Since we have x = 170 ft and v = 85 ft/s, we can substitute these values from the equation written, and we will have $\theta=\frac{Arcsin(\frac{(170ft)(32ft/s^2)}{(85ft/s)^2})}{2}$ , and from now on we have just to use a calculator, obtaining $\theta=\frac{Arcsin(0.75294117647)}{2}=\frac{48.84579804^\circ}{2}=24.4^\circ$

3 0

3 years ago

I need help please

ElenaW [278]

Answer:

L = 25

Step-by-step explanation:

Let's call the Length x and width x - 15 since the width is 15 less than length

Eric needs 70 of fencing in total, the perimeter of a rectangle is calculated by adding all sides

x + x + (x - 15) + (x - 15) = 70 add like terms

4x - 30 = 70 add 30 to both sides

4x = 100 divide both sides by 4

x = 25

8 0

3 years ago

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In a class 28 of students, 5 have a cat and 21 have a dog. There are 4 students who do not have a cat or a dog. What is the prob

Sergeeva-Olga [200]

Answer:

15 have only a dog

5 have a dog and a cat

9 have only a cat

Step-by-step explanation:

20 + 14 = 34, there there are only 29 students, so 34 - 29 or 5 have both a dog and a cat

15 have only a dog

5 have a dog and a cat

9 have only a cat

6 0

3 years ago

Can you help me please and thank you please

const2013 [10]

Answer:

Charlie by 60 words more.

Step-by-step explanation:

60 x 30 = 180

40 x 30 = 120

180 - 120 = 60

7 0

3 years ago