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3 years ago

12

About how much more is 22 to the 7 power and 22 to the 4 power

1 answer:

Bumek [7]3 years ago

4 0

22 to the 7 power is <span>2494357888
</span>22 to the 4 power is <span>234256

Just subtract those two numbers and you'll get that it's </span><span>2494123632</span>

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Solve 4x-3y=-1 and 2x+3y=13 using the elimination method

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Answer:

Step-by-step explanation:

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3 years ago

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Help I cannot figure this question out.

netineya [11]

Answer:

B. x = -1 ± i

General Formulas and Concepts:

<u>Pre-Algebra</u>

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<u> </u>

<u>Algebra I</u>

Standard Form: ax² + bx + c = 0
Factoring
Quadratic Formula: $\displaystyle x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}$

<u>Algebra II</u>

Imaginary Numbers: √-1 = i

Step-by-step explanation:

<u>Step 1: Define</u>

x² + 2x = -2

<u>Step 2: Identify Variables</u>

Rewrite Quadratic in Standard Form [Addition Property of Equality]: x² + 2x + 2 = 0
Break up Quadratic: a = 1, b = 2, c = 2

<u>Step 3: Solve for </u><em><u>x</u></em>

Substitute in variables [Quadratic Formula]: $\displaystyle x=\frac{-2 \pm \sqrt{2^2-4(1)(2)}}{2(1)}$
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Multiply: $\displaystyle x=\frac{-2 \pm \sqrt{4-8}}{2}$
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3 0

2 years ago

Determine the range of the following graph:

sergeinik [125]

Answer:

-7 < y < 2 (Line under <) is the answer

6 0

2 years ago

How to solve this I don’t get this material

Nata [24]

6^2+(24/6+3^2)
First, solve the powers.
6^2=6*6=36
3^2=3*3=9
Now substitute.
36+(24/6+9)
Solve the parentheses.
36+(4+9)
Then, solve.
36+4+9=49

4 0

2 years ago

A woman has 21 total coins in her pocket, all of which are either dimes or quarters. If the total value of her change is $3.90,

Elza [17]

Answer with Step-by-step explanation:

Let there be d dimes and q quarters

A woman has 21 total coins in her pocket.

⇒ d+q=21 ------(1)

1 dime=$ 0.1

1 quarter=$ 0.25

The total value of her change is $3.90

⇒ 0.1d+0.25q=3.90

Multiplying both sides by 100,we get

10d+25q=390 --------(2)

(2)-10×(1)

10d+25q-10d-10q=390-210

15q=180

Dividing both sides by 15, we get

q=12

Putting value of q in (1),we get

d=9

Hence, Number of dimes=9

and number of quarters=12

Write the number of dimes, then the number of quarters separated by a comma.

9,12

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