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3 years ago

12

There are 6 red marbles, 8 blue marbles, and 11 green marbles in a bag. What is the probability that you will randomly draw eith

er a red or a blue marble?
24%
56%
32%
10%

2 answers:

belka [17]3 years ago

8 0

56%
its the correct answer i know it is

o-na [289]3 years ago

5 0

<span>6/25 + 8/25 =0.56
</span><span>0.56 or as a percent 56%SO the answer is B 56%
</span>

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Use the method of completing the square to solve x2 - 6x + 1 = 0. Simplify your solutions.

exis [7]

Answer:

x = 3 ± 2 $\sqrt{2}$

Step-by-step explanation:

given

x² - 6x + 1 = 0 ( subtract 1 from both sides )

x² - 6x = - 1

To complete the square

add (half the coefficient of the x- term)² to both sides

x² - 6x + (- 3)² = - 1 + (- 3)²

x² - 6x + 9 = - 1 + 9

(x - 3)² = 8 ( take the square root of both sides )

x - 3 = ± $\sqrt{8}$ = ± 2 $\sqrt{2}$ ( add 3 to both sides )

x = 3 ± 2 $\sqrt{2}$

8 0

3 years ago

Solve the system using substitution.<br> y - 3x = 1<br> 2y - x = 12<br> ([?], [])

anyanavicka [17]

Answer:

(2, 5)

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

<u>Algebra I</u>

Solving systems of equations using substitution/elimination

Step-by-step explanation:

<u>Step 1: Define Systems</u>

y - 3x = 1

2y - x = 12

<u>Step 2: Rewrite Systems</u>

y - 3x = 1

Add 3x on both sides: y = 3x + 1

<u>Step 3: Redefine Systems</u>

y = 3x + 1

2y - x = 12

<u>Step 4: Solve for </u><em><u>x</u></em>

<em>Substitution</em>

Substitute in <em>y</em>: 2(3x + 1) - x = 12
Distribute 2: 6x + 2 - x = 12
Combine like terms: 5x + 2 = 12
Isolate <em>x</em> term: 5x = 10
Isolate <em>x</em>: x = 2

<u>Step 5: Solve for </u><em><u>y</u></em>

Define equation: 2y - x = 12
Substitute in <em>x</em>: 2y - 2 = 12
Isolate <em>y </em>term: 2y = 10
Isolate <em>y</em>: y = 5

4 0

2 years ago

Evaluate the expression when c=4.<br>c²+5

Sauron [17]

21 I think cause you use pemdas

4 0

3 years ago

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Wpisz odpowiednie liczby: 1 cm2=...........mm2 9 cm2=...........mm2 5,2 cm2=............mm2 1 dm2 =...........cm2 17dm2=........

Tomtit [17]

Answer:

1 cm^2 = 100 mm^2

9 cm^2 = 900 mm^2

5.2 cm^2 = 520 mm^2

1 dm^2 = 100 cm^2

17 dm^2 = 1700 cm^2

4.3 dm^2 = 430 cm^2

1 m^2 = 10000 cm^2

7 m^2 = 70000 cm^2

2.5 m^2 = 25000 cm^2

1 km^2 = 1000000 m^2

50 km^2 = 50000000 m^2

8.5 km^2 = 8500000 m^2

Step-by-step explanation:

1 cm = 10 mm

1 $cm^{2}$ = 10×10 $mm^{2}$ = 100 $mm^{2}$

9 $cm^{2}$ = 9×100 $mm^{2}$ = 900 $mm^{2}$

5.2 $cm^{2}$ = 5.20×100 $mm^{2}$ = 520 $mm^{2}$

1 dm = 10 cm

1 $dm^{2}$ = 10×10 $cm^{2}$ = 100 $cm^{2}$

17 $dm^{2}$ = 17× 100 $cm^{2}$ = 1700 $cm^{2}$

4.3 $dm^{2}$ = 4.3 × 100 $cm^{2}$ = 430 $cm^{2}$

1 m = 100 cm

1 $m^{2}$ = 100×100 $cm^{2}$ = 10000 $cm^{2}$

7 $m^{2}$ = 7×10000 $cm^{2}$ = 70000 $cm^{2}$

2.5 $m^{2}$ = 2.5×10000 $cm^{2}$ = 25000 $cm^{2}$

1 km = 1000 m

1 $km^{2}$ = 1000×1000 $m^{2}$ = 1000000 $m^{2}$

50 $km^{2}$ = 50×1000000 $m^{2}$ = 50000000 $m^{2}$

8.5 $km^{2}$ = 8.5×1000000 $m^{2}$ = 8500000 $m^{2}$

3 0

3 years ago

ILL GIVE YOU BRAINLIEST IF YOU ANSWER FIRST

levacccp [35]

Answer:

24ft³

is the answer to the equation

4 0

3 years ago

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