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3 years ago

PLEASE HELP ! Will reward brainliest !

Mathematics

2 answers:

bazaltina [42]3 years ago

8 0

Unbiased. If it was biased then she would only choose people she wanted to answer her survey. It is unbiased because she is asking the first 10 random people who walk into her shop.

Alexandra [31]3 years ago

5 0

This is biased because she is asking the first morning costumers which means that the morning costumers have a greater chance of adding coffee to the menu

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we start school at 7:30 a.m. and we get out of school at 2:45 p.m. how long are we at school each day

emmainna [20.7K]

Answer:

7 Hours and 15 Minutes

Step-by-step explanation:

I converted the times into 24-hour format, then converted the minutes into decimal form, then subtracted.

14.75 - 7.5 = 7.25 or 7 Hours and 15 Minutes

3 0

3 years ago

Find the distance between points P(3, 4) and Q(4, -6) If necessary round to the nearest hundredth.

Andrei [34K]

Answer:

10.05 units

Step-by-step explanation:

We can find the distance between these points using the distance formula. The distance formula is:

$\sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}$

We know that x1 is 3, x2 is 4, y1 is 4, and y2 is -6, so we can substitute inside the equation.

$\sqrt{(4 - 3)^2 + (-6 - 4)^2} \\\\\sqrt{1^2 + -10^2} \\\\\sqrt{1 + 100} \\\\\sqrt{101} \\\\\approx10.05$

Hope this helped!

7 0

3 years ago

B is between A and C. If AB= 4x+9, BC=5x+2,and AC=56, find the value of AB?

natali 33 [55]

It will be Ac because aB goes after Ac

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3 years ago

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borishaifa [10]

180 degrees= a whole line
180-102=78
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5 0

3 years ago

Solve for h h - 3h - 8 = 14 H=?

sweet [91]

The initial step that must be taken before solving almost any problem is to understand what the problem is asking for us to do and what is provided to us to complete that goal. Looking at the problem statement, we can see that we are being requested to solve for h and we are provided an expression to do so. Let's begin solving the expression by combining like terms.

Combine like terms

$h - 3h - 8 = 14$

$(h - 3h) - 8 = 14$

$(- 2h) - 8 = 14$

Just a quick explanation on what combine like terms means, it basically just means to combine the coefficients of the numbers associated with the same variables. Like in this example we can combine h and -3h because they have have the variable h associated with them.

Add 8 to both sides