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3 years ago

Whats 3 x 7/ 4 - 203 x 54/5???

Mathematics

1 answer:

Mice21 [21]3 years ago

7 0

Answer:

-2187.15

Step-by-step explanation:

3 x 7/4 - 203 x 54/5

21/4 - 10962/5

5.25 - 2192.4

-2187.15

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Write result in standard notation

levacccp [35]

Answer:

7.5 * 10 ^- 4

Step-by-step explanation:

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3 years ago

What is a counterexample for the conjecture?

Dmitriy789 [7]

Answer:

A counterexample for a conjecture is the statement that disproves a conjecture.

Step-by-step explanation:

To find : What is a counterexample for the conjecture?

Solution :

A conjecture is an educated guess but not yet proven. It is possible that next example shown the conjecture wrong.

A counterexample is an example that disproves or disagree a conjecture.

For example : Prime numbers - 3,7,11,23

Conjecture - All prime numbers are odd

Counterexample - 2

→ 2 is a prime number but not odd, it is an even number.

4 0

3 years ago

PQR is a right angled triangle calculate the size of angle marked x

romanna [79]

Answer:

$\displaystyle x \approx 37.4^\circ$

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
Subtraction Property of Equality

Trigonometry

[Right Triangles Only] SOHCAHTOA
[Right Triangles Only] cosθ = adjacent over hypotenuse

Step-by-step explanation:

Step 1: Define

Angle θ = x

Adjacent Leg = 5.8

Hypotenuse = 7.3

Step 2: Solve for x

Substitute in variables [Cosine]: $\displaystyle cosx^\circ = \frac{5.8}{7.3}$
[Fraction] Divide: $\displaystyle cosx^\circ = 0.794521$
[Equality Property] Trig inverse: $\displaystyle x^\circ = cos^{-1}(0.794521)$
Evaluate trig inverse: $\displaystyle x = 37.39^\circ$
Round: $\displaystyle x \approx 37.4^\circ$

8 0

2 years ago

Help pleaseeeee?????

BARSIC [14]

H i think is the answer

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3 years ago

Can anyone help me out with this math problem?

inna [77]

The slope is negative

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3 years ago