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2 years ago

When the variable is on both sides of the inequality it must be isolated on one side and it doesn’t matter which side

Mathematics

2 answers:

frosja888 [35]2 years ago

7 0

Answer:

True

Step-by-step explanation:

Furkat [3]2 years ago

3 0

Answer:

Isolate the variable and then use substitution to solve the system of equations.

Step-by-step explanation:

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Stolb23 [73]

Im not sure if this is what you’re looking for but hope it helped!

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2 years ago

An independent-measures research study uses a total of 18 participants to compare two treatment conditions. If the results are u

Luba_88 [7]

Answer:

The answer is false

Step-by-step explanation:

In a sample above 30 obs like this the confidence interval is defined as

X+- t* (s/sqrt(n)) where X is the mean t the tvalue for a given confidence level, n the size of sample and s standar deviation.

To find de appropiate value of t we must see the T table where rows are degrees of freedom and columns significance level

The significance is obtained:

significance = 1 - confidence level = 1 - 0.9 = 0.10

Degrees of freedom (df) for the inteval are

df = n - 1 = 18 - 1 = 17

So we must look for the value of a t with 17 values and significance of 0.10 which in t table is 1.740 not 1.746 ( thats the t for 16 df)

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2 years ago

Find the value of x

Kay [80]

Answer:

Step-by-step explanation:

$\left(6x+4\right)+10x=180$

$16x+4-4=180-4$

$16x=176$

$\frac{16x}{16}=\frac{176}{16}$

$x=11$

6 0

2 years ago

What is 2 = 8 − 6/4x solved?

KengaRu [80]

Answer:

$x=4$

General Formulas and Concepts:

Order of Operations: BPEMDAS
Equality Properties

Step-by-step explanation:

Step 1: Define equation

$2=8-\frac{6}{4} x$

Step 2: Solve for x

Subtract 8 on both sides: $-6=-\frac{6}{4} x$
Divide both sides by -6/4: $4=x$
Rewrite: $x=4$

Step 3: Check

Plug in x to verify it's a solution.

Substitute: $2=8-\frac{6}{4}(4)$
Multiply: $2=8-6$
Subtract: $2=2$

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2 years ago

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