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2 years ago

Letters that represent numbers are called ?

Mathematics

2 answers:

Ivahew [28]2 years ago

6 0

i believe its variables

STALIN [3.7K]2 years ago

5 0

The answer is "variables"

Hope this helps:))

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What is the value of x to the nearest tenth?

Colt1911 [192]

Answer:

C. 17.6

General Formulas and Concepts:

Math

Rounding

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Trigonometry

[Right Triangles Only] SOHCAHTOA
[Right Triangles Only] tanθ = opposite over adjacent

Step-by-step explanation:

Step 1: Identify Variables

Angle θ = 40°

Opposite Leg = x

Adjacent Leg = 21

Step 2: Solve for x

Substitute in variables [tangent]: $\displaystyle tan(40^\circ) = \frac{x}{21}$
[Multiplication Property of Equality] Isolate x: $\displaystyle 21tan(40^\circ) = x$
Rewrite: $\displaystyle x = 21tan(40^\circ)$
Evaluate: $\displaystyle x = 17.6211$
Round: $\displaystyle x \approx 17.6$

6 0

2 years ago

Read 2 more answers

Helppp me understand plssss

hram777 [196]

Convert the mixed number into improper fraction:
$-\frac{\frac{8}{5}}{-\frac{2}{3}}$

Multiply by reciprocal:
$-\left(-\frac{24}{10}\right)$
$-\frac{1\frac{3}{5}}{-\frac{2}{3}}$

$\frac{12}{5}$

Convert improper fraction to mixed number
$2\frac{2}{5}$

8 0

3 years ago

Which inequality is a true statement?

max2010maxim [7]

Answer:

The true answer is " -3 < -1.

Step-by-step explanation:

I say this because these numbers are negatives. If you put them on a number line you can see that the bigger numbers are farther from the postitives. Postitive numbers are bigger so whatever is close to them is bigger. So because (-1) is closer to them it would be greater, which is what the symbol "<' states.

7 0

2 years ago

Help me with this math assignment

alexgriva [62]

Answer:

24 cubic feet

Step-by-step explanation:

brainliest or 5 stars and heart or BOTH

correct me if im wrong

4 0

2 years ago

Read 2 more answers

Write the ratios for tan D

Maurinko [17]

Answer:

3/5 3:5 3 to 5

1/4 1 to 4 1:4

Step-by-step explanation:

5 0

2 years ago