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3 years ago

Can someone please help me with math.

Mathematics

2 answers:

Alexandra [31]3 years ago

5 0

Answer:

Step-by-step explanation:

11 people were given 15% off in the afternoon

11 is the lowest number in the entire chart

Sophie [7]3 years ago

4 0

Answer:

Step-by-step explanation:

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What is the slope of this equation?<br> y = 3x - 4

Rainbow [258]

Answer:

m=3 is the slope of this equation y=3x-4

6 0

3 years ago

Which is the polynomial function of lowest degree with rational real coefficients, a leading coefficient of 3 and roots StartRoo

anastassius [24]

Answer:

$a) f(x)=3x^{3}-6x^{2}-15x+30$

Step-by-step explanation:

1) In this question we've been given "a", the leading coefficient. and two roots:

$x_{1}=\sqrt{5}\:x_{2}=2$

2) There's a theorem, called the Irrational Theorem Root that states:

If one root is in this form $x'=\sqrt{a}+b$ then its conjugate $x''=\sqrt{a}-b$ . is also a root of this polynomial.

Therefore

$x_3=-\sqrt{5}$

3) So, applying this Theorem we can rewrite the equation, by factoring. Remembering that x is the root. Since the question wants it in this expanded form then:

$f(x)=3(x-\sqrt{5})(x+\sqrt{5})(x-2)\Rightarrow 3x^{3}-6x^{2}-15x+30$

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3 years ago

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jackson is going to the movies. he has to pay $7 for his ticket and $2 for each box of candy he buys. write an expression that r

ruslelena [56]

If Jackson went to the movies and payed $7 initially for his ticket and then payed $2 for each box of candy that he buys, then the equation could look like this: y = 2x + 7, where y represents the total cost and x represents the number of boxes of candy Jackson buys.

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3 years ago

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Andrei's grandfather offered to give him a gift at 50% of the amount of money he saved in one year. Andrei saved $120 dollars. H

Dafna1 [17]

Answer:

$60

Step-by-step explanation:

$120/2(half) = $60

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3 years ago

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