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3 years ago

Factor the polynomial completely. x2 - x + 7

Mathematics

1 answer:

blagie [28]3 years ago

3 0

D it can not be factored because it 7 can not be broken down into nothing else

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The Kramers pay $14,400 per year on their mortgage. What percent of their household expensesis this? Round your answer to the ne

Misha Larkins [42]

Considering that their household expenses is of $120,000, the mortgage is 12% of their expenses.

The percentage of an amount a of an amount b is a multiplied by 100% and divided by b, that is:

$P = \frac{a}{b} \times 100\%$

In this problem, the mortgage is of $14,400, while the total expenses are considered to be of $120,000, hence:

$P = \frac{14400}{120000} \times 100\% = 12\%$

The mortgage is 12% of their expenses.

You can learn more about percentages at brainly.com/question/24729807

3 0

2 years ago

I need help! Please

hoa [83]

Answer:

Step-by-step explanation:

[1,2]

local maxima means curve is curved downwards.

in [1,2] it is curved downward.

3 0

4 years ago

Read 2 more answers

Triangle ABC is formed by two parallel lines and two other intersecting lines. Find the measure of each angle A, B, and of the t

Mamont248 [21]

Answer:

A = 61°

B = 72°

C = 47°

Step-by-step explanation:

Well, first of all, we can see that:

$61^{\circ}+47^{\circ}+B^{\circ}=180^{\circ}$

So, we can find angle B.

$B=180^{\circ}-47^{\circ}-61^{\circ}$

$B=72^{\circ}$

Now, we can see to that angle C is just 47°

Finally, we know that the sum of all angles in a triangle is 180°, so we have:

$B+A+C=180^{\circ}$

$A=180^{\circ}-47^{\circ}-72^{\circ}$

$A=61^{\circ}$

I hope it helps you!

6 0

3 years ago

What is the probability of rolling a sum of 2 on a standard pair of six-sided dice? Express your answer as a fraction or a decim

loris [4]

1/6 times 1/6 = 1/36

5 0

3 years ago

Sin (3x) dx = ? find the integral

AVprozaik [17]

Answer:

$\displaystyle \displaystyle \int {sin(3x)} \, dx = \frac{-cos(3x)}{3} + C$

General Formulas and Concepts:

Calculus

Antiderivatives - Integrals

Integration Constant C

Integration Property [Multiplied Constant]: $\displaystyle \int {cf(x)} \, dx = c \int {f(x)} \, dx$

Trig Integration: $\displaystyle \int{sin(x)} \, dx = -cos(x) + C$

U-Substitution

Step-by-step explanation:

Step 1: Define

$\displaystyle \int {sin(3x)} \, dx$

Step 2: Identify Substitution Variables

u = 3x

du = 3dx

Step 3: Integrate

[Integral] Rewrite: $\displaystyle \frac{1}{3}\int {3sin(3x)} \, dx$
[Integral] U-Substitution: $\displaystyle \frac{1}{3}\int {sin(u)} \, du$
[Integral] Trig Integration: $\displaystyle \frac{1}{3}[-cos(u)] + C$
[Expression] Multiply: $\displaystyle \frac{-cos(u)}{3} + C$
[Expression] Back-Substitute: $\displaystyle \frac{-cos(3x)}{3} + C$

8 0

3 years ago