All categories

3 years ago

Roger bowled 3 games last weekend. His scores are listed below. What is the MEAN of Roger's scores? 155 , 165 , 142 .

Mathematics

1 answer:

weqwewe [10]3 years ago

6 0

Answer:

154

Step-by-step explanation:

because you add 155 +165+142. =462

you do 462 ÷3 =154

You might be interested in

Solve x2 = 12x – 15 by completing the square. Which is the solution set of the equation? Solve x2 = 12x – 15 by completing the s

Svetlanka [38]

Answer: $6+\sqrt{21}\ \text{and}\ 6-\sqrt{21}$

Step-by-step explanation:

Given

Quadratic equation is

$x^2-12x+15=0$

Solving by completing the square method

$\Rightarrow x^2-2\cdot 6\cdot x+15=0\\\text{add and subtract 36}\\\Rightarrow x^2-2\cdot 6\cdot x+15+36-36=0\\\Rightarrow x^2-2\cdot 6\cdot x+36+(-36+15)=0\\\text{using}\ (a-b)^2=a^2+b^2-2ab\\\Rightarrow (x-6)^2-21=0\\\Rightarrow (x-6)^2=21\\\Rightarrow x-6=\pm \sqrt{21}\\\Rightarrow x=6\pm \sqrt{21}$

The solution set of the equation is $6+\sqrt{21}\ \text{and}\ 6-\sqrt{21}$

6 0

3 years ago

Read 2 more answers

PLZ HELP ASAP CIRCLES PART 2

Sveta_85 [38]

For this case we have the following angle:
theta = (9/5) pi
Having the conversion we have:
theta = ((9/5) pi) * (180 / pi)
Rewriting we have:
theta = (9/5) * (180)
theta = (9/5) * (180)
theta = 324 degrees
Answer:
The angle is equivalent to:
theta = 324 degrees

5 0

3 years ago

Jim borrows $790 for 4 months. He pays a simple interest of 6%. How much interest must be pay? Around your answer to the nearest

k0ka [10]

Answer:

189.6

Step-by-step explanation:

790*4=3160*6%

6 0

3 years ago

5x (x - 4) = 0<br> Solve it in standard form

murzikaleks [220]

Answer:

x=0 or x=4

Step-by-step explanation:

5x(x−4)=0

4 0

3 years ago

Which equation best represents the line in the graph

bulgar [2K]

Answer:

G

Explanation

4 0

3 years ago