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Luba_88 [7]
3 years ago
8

A magazine editor wants to know what percent of people ski. She chooses people randomly on a winter weekend and calls them at ho

me to ask whether they ski. What is the bias in this situation?
Mathematics
1 answer:
dem82 [27]3 years ago
7 0
The people she's asking are on a winter weekend so they've most likely been skiing. She should've asked random people for a more fair percentage.
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write an equation of a line in the slope intercept form when the slope is 2 and the y intercept is -3
Digiron [165]

Answer:

y=2x-3

Step-by-step explanation:

y=mx+b where m=slope and b=y-intercept

y=2x-3

3 0
3 years ago
2x + 3y + x + 7 identidy the terms, like terms, coefficients, and constants in each expression
charle [14.2K]

Answer:

terms, 2x, 3y , x and 7,

like terms, 2x, 3y, x and 7

Coefficient. 2 is the coefficient of 2x and 3 is the coefficient of 2y 1 is the coefficient of x

Constant. 7

Step-by-step explanation:

Given:

2x+3y+x+7

Terms are the number of parts in the  expression.

there are four terms 2x, 3y , x and 7,

Like terms are the part of the polynomials. 2x, 3y and x are like terms because  they both have an x attached. 7 is like terms because they have nothing attached.

The number that are  attached to variable is called Coefficient.

So In the term 2x the  number 2 is a coefficient because it is  attached to x similarly 3y the number 3 is a coefficient because it is  attached to y

and in the term x the number 1 is a coefficient.

Constant are the numbers that are not attached to any variable and it is not change. Such as 7 is the constant term.

7 0
3 years ago
Did I do this Math Right
kakasveta [241]
I cant answer if i dont know what math would you mind telling me what math

6 0
3 years ago
Which of the following functions is quadratic? f(x)=3(x-4)(x+3), f(x)=5^2, f(x)=2/x, f(x)=2x^3+3x^2-5
DENIUS [597]
In B 5^2 = 25. There is no x anywhere.
In C f(x) = 2/x is a function of a reciprocal, not a quadratic.
In D f(x) = 2x^3 + 3x^2 - 5 is a cubic. A cubic is not a quadratic. The highest power of a quadratic is x^2

That leaves A. When you expand the brackets, you get
3(x^2 + 3x- 4x - 12)
2(x^2 - x - 12) when you remove the brackets you get
2x^2 - 2x - 24. The highest power of x is x^2. This is your quadratic.

A<<<< answer.
8 0
3 years ago
Solve:<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bzz%7D%7B4%7D%20%20%2B%205%20%5Cgeqslant%205.5" id="TexFormula1" title="
allochka39001 [22]

\bf \cfrac{zz}{4} + 5\geqslant 5.5\implies \stackrel{\textit{subtracting 5 from both sides}}{\cfrac{zz}{4}\geqslant 0.5}\implies \stackrel{\textit{multiplying both sides by 4}}{zz \geqslant 2}

7 0
4 years ago
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