This table represents a proportional relationship.

A radar gun was used to record the speed of a runner (in meters per second) during selected times in the first 2 seconds of a ra

Pavlova-9 [17]

Answer:

Step-by-step explanation:

See image

6 0

3 years ago

Solve the equation: 8b = 5.6

alisha [4.7K]

Answer:

b = 0.7

Step-by-step explanation:

to solve the equation, you must isolate "b" so the variable is by itself,,

to do this, divide both sides of the equation by 8:

8b = 5.6

b = 5.6/8

now, simply divide 5.6 by 8 to get your answer,,

b = 5.6/8

b = 0.7

7 0

3 years ago

How to find the perimeter of the triangle

Sliva [168]

Answer:

A. 26.2

Step-by-step explanation:

To find the perimeter of the triangle, you have to find the distances of all three lines and add them up.

Line AB

Let's start off by finding the distance of line AB.

We will use the formula, $d = \sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}$ .

Point A is (-2,5) and Point B is (4,-3).

To substitute the values, it will get to $d = \sqrt{(4--2)^{2}+(-3-5)^{2}}$ which in other words is $d = \sqrt{(4+2)^{2}+(-3-5)^{2}}$ .

Now we have to solve the parenthesis to get $d = \sqrt{(6)^{2}+(-8)^{2}}$ .

Now we have to solve the exponents which would get to $d = \sqrt{36+64}$ .

Now we have to simplify the square root to $d = \sqrt{100}$ . In other words, that is $d = 10$ .

Line AB = 10

Line BC

Now let's find the distance of line BC.

We will use the same formula, $d = \sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}$ .

Point B is (4,-3) and Point C is (0,-6).

To substitute the values, it will get to $d = \sqrt{(0-4)^{2}+(-6--3)^{2}}$ which in other words is $d = \sqrt{(0-4)^{2}+(-6+3)^{2}}$ .

Now we have to solve the parentheses to get $d = \sqrt{(-4)^{2}+(-3)^{2}}$ .

Now we have to solve the exponents which would get to $d = \sqrt{16+9}$ .

Now we have to simplify the square root to $d = \sqrt{25}$ . In other words, that is $d = 5$ .

Line BC = 5.

Line AC

Now let's fine the distance of line AC.

We will use the same formula, $d = \sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}$ .

Point A is (-2,5) and Point C is (0,-6).

To substitute the values, it will get to $d = \sqrt{(0--2)^{2}+(-6-5)^{2}}$ which in other words is $d = \sqrt{(0+2)^{2}+(-6-5)^{2}}$ .

Now we have to solve the parentheses to get $d = \sqrt{(2)^{2}+(-11)^{2}}$ .

Now we have to solve the exponents which would get to $d = \sqrt{4+121}$ .

Now we have to simplify the square root to $d = \sqrt{125}$ . In other words, that is $d = 5\sqrt{5}$ . To round that, $d = 11.2$ .

Line AC = 11.2.

Perimeter of Triangle ABC

Perimeter of Triangle ABC = Line AB + Line BC + Line AC.

Perimeter of Triangle ABC = 10 + 5 + 11.2

Perimeter of Triangle ABC = 26.2

Hope this helped! If not, please let me know <3

3 0

3 years ago

D is correct!

bagirrra123 [75]

Answer:

The bias most likely to be present in the survey results is;

Option A; This is question wording bias because the survey question attempts to influence subjects’ responses.

Step-by-step explanation:

A bias occurs when a group or outcome is intentionally or unintentionally favored over another group or outcome in the a general population.

There are two main types which are;

- Selection bias which includes; Non - response bias, non representative sample and voluntary bias

- Response Bias which includes wording bias, extreme responses, neutral responses e.t.c

Let's look at each of the options;

Option A; This is correct because what occurred is that the concerned student by telling the adults adverse effect of plastics in our environment, he is indirectly influencing the adults to have a bad mindset about the plastics. He is leading them on by the way he phrased the word to ask the question.

Option B; This is not the reason why it is a response bias. The reason it is a response bias is because he led them on with his wording of the question.

Option C; Like said in Option A & B above, the scenario is that of a response bias since they are giving answers.

Option D; Voluntary response bias is a type of non-response bias and so it is not correct here

5 0

2 years ago

Use the above figure to answer the following questions. Show your work if possible

LenKa [72]

#1 is A & B (points connect)
#2 is A & B & D (because they all touch)
#3 is Plane DFG & Plane GFA
#4 is A & B & D & F

5 0

3 years ago