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3 years ago

13. In engineering notation, the number 0.000452 is expressed as

Mathematics

1 answer:

Nostrana [21]3 years ago

7 0

Answer:

I think it is 4.52 × 10^-4

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I NEED HELP ASAP FIND THE VALUE OF X IN THE FOLLOWING FIGURE

levacccp [35]

Answer:

x= 8

90+40=130

180-130=50

50-2=48

48/6=8

5 0

3 years ago

If a=3 cm, c=15 cm, find b in the following right triangle

evablogger [386]

Answer:

use the pythagoras theorem

a^2 + b^2 = c^2

3^2 + b^2 = 15^2

b^2 = 225 - 9

= 216

b = _/216

b = 14.6969384567

8 0

3 years ago

Read 2 more answers

How do you evaluate an expression

Marina86 [1]

How to evaluate an express.

4 0

4 years ago

What fraction represents 1/8 of 6

Natalija [7]

Answer:

$\frac{3}{4}$

Step-by-step explanation:

Replace of by ×, that is

$\frac{1}{8}$ × 6

Cancel the 8 and 6 by 2, leaving

$\frac{3}{4}$

3 0

4 years ago

Find the value of x. Round to the nearest tenth.

denpristay [2]

Answer:

$\displaystyle x \approx 38.2 ^{\circ}$

General Formulas and Concepts:

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
Subtract Property of Equality

Pre-Calculus

Law of Sines: $\displaystyle \frac{sin(A)}{a} =\frac{sin(B)}{b} =\frac{sin(C)}{c}$

A, B, C are angle measures
a, b, c are leg lengths

Step-by-step explanation:

Step 1: Identify

A = 27°, a = 11

B = x°, b = 15

Step 2: Solve for x

Substitute [LOS]: $\displaystyle \frac{sin(27^{\circ})}{11} =\frac{sin(x^{\circ})}{15}$
Cross-multiply: $\displaystyle 11sin(x^{\circ}) = 15sin(27^{\circ})$
Isolate x term: $\displaystyle sin(x^{\circ}) = \frac{15sin(27^{\circ})}{11}$
Isolate x: $\displaystyle x = sin^{-1}(\frac{15sin(27)}{11})$
Evaluate: $\displaystyle x = 38.2488 ^{\circ}$
Round: $\displaystyle x \approx 38.2 ^{\circ}$

7 0

3 years ago