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Kruka [31]
3 years ago
14

Pls help fast idk this quick points

Mathematics
1 answer:
Lisa [10]3 years ago
7 0
A) 2.9

B) 2.0

C) 5.0

D) 0

E) 6.0
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The band in a local school was selling bumper stickers to raise money. The net amount A in dollars raised by selling b bumper st
iris [78.8K]

Answer:

  D.  740

Step-by-step explanation:

Put the given value of b into the formula and do the arithmetic:

  A(150) = 5×150 -10 = 750 -10

  A(150) = 740

The band raised $740 from their sales.

7 0
3 years ago
Kipp is making bird houses for a park. The guidelines tell him how many of each wooden in shape to use on one birdhouse .If he f
ankoles [38]
The answer to this is A) For 8 birdhouses, he will need 16 trapezoids.

(B = 12*4 is 48 not 16.) (C = A 2 to 1 ratio.) (D = a 1 to 2 ratio.) Hope that helps! 

4 0
3 years ago
Read 2 more answers
A student claims that 2i is the only imaginary root of a polynomial equation that has real coefficients. Explain the student's m
____ [38]

Answer:

The Fundamental Theorem of Algebra assures that any polynomial  f(x)=0 whose degree is n ≥1 has at least one Real or Imaginary root. So by the Theorem we have infinitely solutions, including imaginary roots ≠ 2i

Step-by-step explanation:

1) This claim is mistaken.

2) The Fundamental Theorem of Algebra assures that any polynomial  f(x)=0 whose degree is n ≥1 has at least one Real or Imaginary root. So by the Theorem we have infinitely solutions, including imaginary roots ≠ 2i with real coefficients.

a_{0}x^{n}+a_{1}x^{2}+....a_{1}x+a_{0}

For example:

3) Every time a polynomial equation, like a quadratic equation which is an univariate polynomial one, has its discriminant following this rule:

\Delta < 0\\b^{2}-4*a*c

We'll have <em>n </em>different complex roots, not necessarily 2i.

For example:

Taking 3 polynomial equations with real coefficients, with

\Delta < 0

-4x^2-x-2=0 \Rightarrow S=\left \{ x'=-\frac{1}{8}-i\frac{\sqrt{31}}{8},\:x''=-\frac{1}{8}+i\frac{\sqrt{31}}{8} \right \}\\-x^2-x-8=0 \Rightarrow S=\left\{\quad x'=-\frac{1}{2}-i\frac{\sqrt{31}}{2},\:x''=-\frac{1}{2}+i\frac{\sqrt{31}}{2} \right \}\\x^2-x+30=0\Rightarrow S=\left \{ x'=\frac{1}{2}+i\frac{\sqrt{119}}{2},\:x''=\frac{1}{2}-i\frac{\sqrt{119}}{2} \right \}\\(...)

2.2) For other Polynomial equations with real coefficients we can see other complex roots ≠ 2i. In this one we have also -2i

x^5\:-\:x^4\:+\:x^3\:-\:x^2\:-\:12x\:+\:12=0 \Rightarrow S=\left \{ x_{1}=1,\:x_{2}=-\sqrt{3},\:x_{3}=\sqrt{3},\:x_{4}=2i,\:x_{5}=-2i \right \}\\

4 0
3 years ago
Kristine bought a vase that cost $5.99 and roses that cost $1.25 each. The total cost was $20.99.
LuckyWell [14K]

Answer:

5.99 + 1.25r = 20.99

Step-by-step explanation:

6 0
4 years ago
Owen had 3 different kinds of stickers that he wanted to put on paper. He put a bird sticker on every 30th paper, a sports stick
Semmy [17]
So the which page that will have the 3 sticker, we must solve the least common multiple of 30, 50, 60. <span>A common multiple is a number that is a multiple of two or more numbers. The common multiples of 3 and 4 are 0, 12, 24, ....</span>

<span>The least common multiple (LCM) of two numbers is the smallest number (not zero) that is a multiple of both.</span>

<span>so the least common multiple of 30, 50 and 60 is 300. so the page that will have 3 stickers is 300th page</span>

7 0
3 years ago
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