Evaluate 9.5v + 8.9w when v=6 and w=7

Write each number as a product of a decimal number between 1 and 10 and a power of 10. 234,000

MrRa [10]

Answer:

2.34 * 10^5.

Step-by-step explanation:

234000 = 2.34 * 10^5

- there are 5 digits after the first number so the exponent is 5.

4 0

3 years ago

How do i Evaluate In 7. ?

Pachacha [2.7K]

Answer:

(b) 1.95

Step-by-step explanation:

One of the easiest ways to evaluate an arithmetic expression of almost any kind is to type it into an on-line calculator. Many times, typing it into a search box is equivalent.

<h3>Application</h3>

See the attachment for the search box input (at top) and the result. This calculator has the benefit that it always follows the Order of Operations when evaluating an expression. (Not all calculators do.)

ln(7) ≈ 1.95

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Additional comment

If your math course is asking you to evaluate such expressions, you have probably been provided a calculator to use, or given the requirements for a calculator suitable for use in the course.

There are some very nice calculator apps for phone and tablet. Many phones and tablets already come with built-in calculator apps. For the purpose here, you need a "scientific" or "graphing" calculator. A 4-function calculator will not do.

As with any tool, it is always a good idea to read the manual for your calculator and work through any example problems.

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Years ago, handheld calculators were not available, and most desktop calculators were only capable of the basic four arithmetic functions. Finding a logarithm required use of a table of logarithms. Such tables were published in mathematical handbooks, and extracts of those often appeared as appendices in math textbooks used in school.

3 0

2 years ago

Need help with this math question!!!!!!!!!

exis [7]

ANSWER

The vertex is (1,-3)

EXPLANATION

The given parabola has equation:

${y}^{2} + 6y + 8x + 1 = 0$

We group the variables to obtain:

${y}^{2} + 6y = - 8x - 1$

We complete the square to get,

${y}^{2} + 6y + {3}^{2} = - 8x - 1 + {3}^{2}$

${(y+ 3)}^{2} = - 8x +8$

${(y+ 3)}^{2} = - 8(x -1)$

The vertex is of the parabola is (1,-3)

7 0

2 years ago

Read 2 more answers

How to solve? 3x^3 - 45x = 0

Tems11 [23]

STEP
1
:
Equation at the end of step 1

((3 • (x3)) - (32•5x2)) + 150 = 0
STEP
2
:

Equation at the end of step
2
:

(3x3 - (32•5x2)) + 150 = 0
STEP
3
:

STEP
4
:
Pulling out like terms

4.1 Pull out like factors :

3x3 - 45x2 + 150 = 3 • (x3 - 15x2 + 50)

Polynomial Roots Calculator :

4.2 Find roots (zeroes) of : F(x) = x3 - 15x2 + 50
Polynomial Roots Calculator is a set of methods aimed at finding values of x for which F(x)=0

Rational Roots Test is one of the above mentioned tools. It would only find Rational Roots that is numbers x which can be expressed as the quotient of two integers

The Rational Root Theorem states that if a polynomial zeroes for a rational number P/Q then P is a factor of the Trailing Constant and Q is a factor of the Leading Coefficient

In this case, the Leading Coefficient is 1 and the Trailing Constant is 50.

The factor(s) are:

3 0

2 years ago

150 is 45%of what number? A. 70 B. 65.5 C. 40 D. 67.5

WITCHER [35]

Answer:

333.3

Step-by-step explanation:

45 % = 150

100% = 100% x 150

45%

= 333.3

non of the answers presented makes sense as 45 % = 150 the number (100%) should be more than 150

4 0

3 years ago