All categories

3 years ago

5.5% tax on a $309.95 purchase

Mathematics

2 answers:

Zina [86]3 years ago

7 0

Answer:

$17.05 tax.

Step-by-step explanation:

multiply 309.95 by .055 to get 17.04725

the tax on a 309.95 purchase is about 17 dollars and 5 cents.

oksano4ka [1.4K]3 years ago

6 0

To find a 5.5% tax on $309.95, you need to multiply them together.

5.5% x 309.9

= 0.55 x 309.9

= 170.445

≈ $170.45

You might be interested in

Please help, I'll give Brainliest!!!

marin [14]

I blieve answer is A........mmmmmmmmmmmm

7 0

3 years ago

Does 8 + 2(x−6) = −2 + 2x −2 have one solution, no solutions, or infinite solutions.

tia_tia [17]

Answer:

Infinite solutions

Step-by-step explanation:

All solutions are possible.

7 0

2 years ago

Read 2 more answers

What is the largest possible integral value in the domain of the real-valued function

kotegsom [21]

Answer:

Max Value: x = 400

General Formulas and Concepts:

Algebra I

Domain is the set of x-values that can be inputted into function f(x)

Calculus

Antiderivatives
Integral Property: $\int {cf(x)} \, dx = c\int {f(x)} \, dx$
Integration Method: U-Substitution
[Integration] Reverse Power Rule: $\int {x^n} \, dx = \frac{x^{n+1}}{n+1} + C$

Step-by-step explanation:

Step 1: Define

$f(x) = \frac{1}{\sqrt{800-2x} }$

Step 2: Identify Variables

Using U-Substitution, we set variables in order to integrate.

$u = 800-2x\\du = -2dx$

Step 3: Integrate

Define: $\int {f(x)} \, dx$
Substitute: $\int {\frac{1}{\sqrt{800-2x} } } \, dx$
[Integral] Int Property: $-\frac{1}{2} \int {\frac{-2}{\sqrt{800-2x} } } \, dx$
[Integral] U-Sub: $-\frac{1}{2} \int {\frac{1}{\sqrt{u} } } \, du$
[Integral] Rewrite: $-\frac{1}{2} \int {u^{-\frac{1}{2} }} \, du$
[Integral - Evaluate] Reverse Power Rule: $-\frac{1}{2}(2\sqrt{u}) + C$
Simplify: $-\sqrt{u} + C$
Back-Substitute: $-\sqrt{800-2x} + C$
Factor: $-\sqrt{-2(x - 400)} + C$

Step 4: Identify Domain

We know from a real number line that we cannot have imaginary numbers. Therefore, we cannot have any negatives under the square root.

Our domain for our integrated function would then have to be (-∞, 400]. Anything past 400 would give us an imaginary number.

7 0

3 years ago

I'm new to the app. Stumped on all of these

nekit [7.7K]

What are you stumped on?

3 0

3 years ago

WILL MAKE BRAINLIEST!!Determine if the two triangles are congruent if they are state the postulate or theorem that provides they

Dmitry [639]

Answer:

<h2>Yes they are congruent by SSS criterion </h2>

Step-by-step explanation:

AC=DC. (Given in figure)

AB=BD. (Given in figure

BC=BC. (Common)

that means triangle BAC is congruent to triangle BDC by SSS criterion.

5 0

1 year ago