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3 years ago

Plz help! ill give brainliest

Mathematics

2 answers:

kompoz [17]3 years ago

5 0

I think amount of money

Hunter-Best [27]3 years ago

3 0

Answer:

it should be B the amount of electricity used by a refrigerator over time.

The electricity changes smoothly as the refrigerator runs. Even during on/off transitions, the voltage and current cannot change instantly.

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Evaluate |bc|, given a = 5, b = -3, and c = -2.

Anni [7]

Answer:

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

|Absolute Value| - makes any number positive

Step-by-step explanation:

Step 1: Define

|bc|

a = 5

b = -3

c = -2

Step 2: Evaluate

Substitute: |-3 · -2|
Multiply: |6|
Evaluate: 6

7 0

2 years ago

X^2-x+12 solve using the quadratic formula

devlian [24]

The quadratic formula is $x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}$ .

From the problem, a is 1, b is -1, and c is 12. Plugging in these values gives:

$x=\frac{-(-1(-1)\pm\sqrt{(-1)^2-4(1)(12)} }{2(1)}$

Because there is a square root of a negative number, there is no solution.

4 0

3 years ago

How do you Change 0.3 to a fraction?

ArbitrLikvidat [17]

Answer:

3/10

Step-by-step explanation:

Decimals can be written in fraction form. To convert a decimal to a fraction, place the decimal number over its place value. For example, in 0.6, the six is in the tenths place, so we place 6 over 10 to create the equivalent fraction, 6/10. If needed, simplify the fraction.

8 0

3 years ago

Read 2 more answers

Simplify (7x+42)/(x^2+13x+42)

Colt1911 [192]

$\frac{7x+42}{x^2+13x+42}= \frac{7(x+6)}{x^2+7x+6x+42}= \frac{7(x+6)}{x(x+7)+6(x+7)}= \frac{7(x+6)}{(x+6)(x+7)}= \frac{7}{x+7}$