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Sedaia [141]
3 years ago
7

PLEASE HELP ME (will mark brainliest

Mathematics
1 answer:
jonny [76]3 years ago
3 0

Answer:

The answers I got might not be right but:

47. Equation: (3x)-(7+5x)=25 x= -16

48. Equation: x÷(-3+6)=9 x=37

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How do you know if an equation is discrete or continuous
nikklg [1K]
Discrete data have infinite values or buckets, you can count them. Continuous data has an infinite number of steps which form a continuum. Hope this helps. Please answer this as the brainiest to help me thanks.
7 0
4 years ago
Write a polynomial function in factored form with double roots at -2 and 5 and the constant term of the polynomial in standard f
Amanda [17]

Answer:

f(x)=-0.4x^4+2.4x^3+8.4x^2-24x-40

Step-by-step explanation:

If -2 and 5 are double roots of the polynomial function, then the function expression is

f(x)=a(x-(-2))^2(x-5)^2\\ \\f(x)=a(x+2)^2(x-5)^2

Rewrite this function in standard form:

f(x)=a(x^2+4x+4)(x^2-10x+25)\\ \\f(x)=a(x^4-10x^3+15x^2+4x^3-40x^2+100x+4x^2-40x+100)\\ \\f(x)=a(x^4-6x^3-21x^2+60x+100)\\ \\f(x)=ax^4-6ax^3-21ax^2+60ax+100a

The constant term of the polynomial in standard form is -40, so

100a=-40\\ \\a=-\dfrac{40}{100}=-0.4

Therefore, the function expression is

f(x)=-0.4x^4-6\cdot (-0.4)x^3-21\cdot (-0.4)x^2+60\cdot (-0.4)x+100\cdot (-0.4)\\ \\f(x)=-0.4x^4+2.4x^3+8.4x^2-24x-40

7 0
4 years ago
Which expression has a value equal to the value of the expression 4×(12+4) - (12÷3)
Rasek [7]
The answer to the problem is 28.
5 0
3 years ago
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Can someone please explain to me how to find the surface area of this pyramid?
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I'm not sure if this is right... ( if you search up the internet... it tells you the formula and you just have to fill in the missing pieces like the length, base, and height.) I got... 207.23... Good luck on finding the right answer!  
7 0
3 years ago
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A circular track begins at 0 meters and has a total distance of 100 meters. Juliet starts at the 10-meter mark while practicing
Alex_Xolod [135]

Your answer is 45 meters.

We can find this because we know that the total length of the track is 100 meters. Since Juliet starts at the 10 meter mark, she only has 90 meters left to run.

Then, she runs for 45 meters, which brings her to a total of 55 meters on the track. This means that to find how much she has left we just do 100 - 55 = 45 meters.

I hope this helps!

8 0
4 years ago
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