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4 years ago

The list below show test scores for 1st period on a recent test. Finding the mean deviation. 62 63 64 71 96 97 98 99 100 100

Mathematics

1 answer:

motikmotik4 years ago

6 0

Answer:

Step-by-step explanation:

just use a mean absolute deviation calculator next time

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Find the products 6 + 8 6 - 8

Oksanka [162]

Answer:

-2

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

K divide by 6 + 8 = 5

VLD [36.1K]

Answer:

k= -18

Step-by-step explanation:

5 = (k/6) + 8 so 5-8 = k/6

-3=k/6 then -3 multiplied by 6 = k which is -18 = k

-18/6= -3

-3+8=5

5 0

3 years ago

HELP 6TH GRADE MATH Enter the phrase as an algebraic expression. b divided by 9

ozzi

Answer:

$\frac{b}{9}$ An algebraic expression is just an equation without an answer

3 0

3 years ago

Rounded to the nearest hundredth, what is the positive solution to the quadratic equation 0 = 2x2 + 3x – 8? Quadratic formula: x

OleMash [197]

ANSWER

$x=1.39$ to the nearest hundredth.

EXPLANATION

We have the equation,

$0=2x^2+3x-8$

Which can be rewritten as

$2x^2+3x-8=0$

The question demands the use of the quadratic formula.

Comparing this to the general quadratic equation;

$ax^2+bx+c=0$

$a=2,b=3,c=-8$

The quadratic formula is given by;

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

We now substitute all the values in to the formula;

$x=\frac{-3\pm\sqrt{(3)^2-4(2)(-8)}}{2(2)}$

We simplify to obtain;

$x=\frac{-3\pm\sqrt{9+64}}{4}$

$x=\frac{-3\pm\sqrt{73}}{4}$

We now split the plus or minus sign to obtain;

$x=\frac{-3-\sqrt{73}}{4}$

This implies that;

$x=-2.89$

$x=\frac{-3+\sqrt{73}}{4}$

This will evaluate to;

$x=1.39$

Hence, the positive solution rounded to the nearest hundredth is

$x \approx 1.39$

6 0

4 years ago

Read 3 more answers

If 1=3 2=3 3=5 4=4 5=4 Then, 6=?

anzhelika [568]

It’s 6=6 I think I hope it’s help have a nice day

8 0

3 years ago