All categories

4 years ago

Solve 3x +5 =14 please help me

Mathematics

2 answers:

alisha [4.7K]4 years ago

4 0

3x=14-5
3x=14-5
3x=9
x=9 ➗ 3
x= 3

the answer is 3

choli [55]4 years ago

3 0

3x+5=14
3x+5(-5)=14(-5)
3x=9
3x(/3)=9(/3)
x=3

You might be interested in

Is the equation linear or quadratic? t(x)=x+5 O A. linear O B. quadratic

olasank [31]

Answer:

A. Linear

Step-by-step explanation:

The equation ( $t(x)=x+5$ ) is a linear equation. As per its definition, a linear equation is an equation where all terms are to the first degree, meaning that none of the terms have an exponent. The equation, ( $t(x)=x+5$ ) falls under this category, as none of its terms has an exponent, therefore, the equation is a linear equation.

4 0

3 years ago

Read 2 more answers

30 points! Inflection points question. Okay, so I know that an inflection point is where the function is continuous and the conc

Pavel [41]

Find the concavity changes of f(x).
Give the x-coordinates.

So, the answer to the multiple choice question is -1 and 5 since those points are where f''(x) changes sign.

Note: You can tell that you're supposed to find the concavity changes of f(x) and not f''(x) because from the graph it's obvious that the concavity of f"(x) doesn't change.

5 0

4 years ago

Simplify (2+2i) divided by (1-i)

Verdich [7]

Answer: 2i

Step-by-step explanation:

$\frac{2+2i}{1-i}$

$=\frac{\left(2\cdot \:1+2\left(-1\right)\right)+\left(2\cdot \:1-2\left(-1\right)\right)i}{1^2+\left(-1\right)^2}$

$=\frac{4i}{2}$

$=2i$

3 0

3 years ago

Let F(x) = x^2 – 15 and G(x)= 4 - x Find (F/G)(–7) =

KATRIN_1 [288]

Answer:

$\displaystyle \bigg( \frac{F}{G} \bigg)(-7) = \frac{34}{11}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Functions
Function Notation

Step-by-step explanation:

Step 1: Define

Identify

F(x) = x² - 15

G(x) = 4 - x

Step 2: Find

Substitute in functions: $\displaystyle \bigg( \frac{F}{G} \bigg)(x) = \frac{x^2 - 15}{4 - x}$

Step 3: Evaluate

Substitute in x [Function (F/G)(x)]: $\displaystyle \bigg( \frac{F}{G} \bigg)(-7) = \frac{(-7)^2 - 15}{4 - (-7)}$
Exponents: $\displaystyle \bigg( \frac{F}{G} \bigg)(-7) = \frac{49 - 15}{4 - (-7)}$
Subtract: $\displaystyle \bigg( \frac{F}{G} \bigg)(-7) = \frac{34}{11}$