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Black_prince [1.1K]
3 years ago
5

Find the average (mean) of the following test scores.

Mathematics
1 answer:
hichkok12 [17]3 years ago
4 0

Answer:

The average (mean) of the test scores is

A. 76

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What is the factored form of x^3 + 125?
Lerok [7]

x^3+125=x^3+5^3

Sums of cubes can be factored as

a^3+b^3=(a+b)(a^2+ab+b^2)

So

x^3+125=(x+5)(x^2+5x+25)

7 0
3 years ago
Read 2 more answers
Please guys I am begging you to help me! This was due yesterday and I need help! SO please help!
jeka57 [31]

Answer:

  • Q3. 12 units
  • Q4. 6.33 units
  • Q5. 66.19°

Step-by-step explanation:

Q3

DE and DF are legs and EF is hypotenuse

  • DE = √EF² - DF²
  • DE = √13² - 5² = √169 - 25 = √ 144 = 12
  • DE = 12 units

Q4

PR is opposite side of angle Q and RQ is adjacent side

  • tan 54 = PR/RQ
  • tan 54 = PR / 4.6
  • PR = 4.6tan 54
  • PR = 6.33 units

Q5

As previous question, using tan as BC is opposite and AC is adjacent leg of angle A

  • tan A = 6.8/3
  • tan A = 2.266
  • A = arctan (2.266)
  • A = 66.19°
8 0
3 years ago
WHAT IS 11/6 simplified I CANT DO THIS MATH IT IS TOOOOO HARDDDDD JK IM JUST TO LAZY >:( thanks
erma4kov [3.2K]

Answer:

It can't be simplified.

6 0
3 years ago
What is the slope of the line represented by the equation y=x/3-5
Nana76 [90]

Answer:

a. 1/3

Step-by-step explanation:

y=x/3-5  (rewrite x - term)

y = (1/3) x + 5

recall that in the slope-intercept form of  a linear equation y = mx + b

m is the slope.

In our case, we can clearly see that slope  m = (1/3)

8 0
3 years ago
What is the square root of four
xz_007 [3.2K]

Answer:

It is +2 or since (+2)*(+2 ) gives. If you think that it would be (-2) also then you are wrong because root of a positive rational number is always positive number.

Step-by-step explanation:

Let the square root of four be ‘k’.

Then we have

(4)^1/2=k

(Squaring both sides)

4=(k)^2

=>(k)^2–4=0

=>(k)^2-(2)^2=0

=>[k+2][k-2]=0 {since (a)^2-(b)^2=(a+b)(a-b)}

if product of two numbers is 0 then either of one must be zero.

If k+2=0 then k=-2

If k-2=0 then k=2

From here we got two answers but -2 should be omitted because when we square an equation we add “root extra”which means that when we square an equation one root is added.

3 0
3 years ago
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