Step 1: C = 2r Step 2: 6 = 2r Step 3: r = 6/2 Step 4: r = 3 Step 5: A = 360°/x° × × r^2 Step 6: A = 360°/72° × × (3)^2 Step 7: A = 5 × × (3)^2 Step 8: A = 45

Identify the step where Gwen first made an error
A. Step 5
B. Step 6
C. Step 3
D. Step 7 ​

Answer:

1/4

Step-by-step explanation:

The one of of four makes the fraction 1/4. Reason: MATH

PS:

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Answer:

l = √10

Step-by-step explanation:

We're given the value of a as 3 feet and the value of b as 1 feet (because 2/2 = 1). We are to find the value of l using Pythagorean Theorem.

Therefore, the answer is √10 feet.

Answer:

32

Step-by-step explanation:

8(3 + 4) ← multiply each term in the parenthesis by 8

= 8(3) + 8(4)

= 24 + 32

[tex]\\ \rm\Rrightarrow \sqrt{9-4\sqrt{5}}+\sqrt{5}[/tex]

[tex]\\ \rm\Rrightarrow \sqrt{9-8.8}+2.2[/tex]

[tex]\\ \rm\Rrightarrow \sqrt{0.2}+2.2[/tex]

[tex]\\ \rm\Rrightarrow 0.3+2.2[/tex]

[tex]\\ \rm\Rrightarrow 2.5[/tex]

[tex]\\ \rm\Rrightarrow 2(approx)[/tex]

Answer:

Algebraic "proof" that the solution is 2:

[tex]\sqrt{9-4\sqrt{5} }\:+\sqrt{5}[/tex]

[tex]=\sqrt{4-4\sqrt{5}+5 }\:+\sqrt{5}[/tex]

[tex]=\sqrt{2^2-4\sqrt{5}+(\sqrt{5})^2 }\:+\sqrt{5}[/tex]

[tex]=\sqrt{(2-\sqrt{5})^2 }\:+\sqrt{5}[/tex]

[tex]=(2-\sqrt{5})+\sqrt{5}[/tex]

[tex]=2[/tex]

However, this is not the correct mathematical solution to the problem.

The order of operations for [tex]\sqrt{(2-\sqrt{5})^2 }[/tex] dictate that the operation inside the parentheses must be carried out first.  

As [tex]2-\sqrt{5} < 0[/tex], then [tex](2-\sqrt{5})^2[/tex] will always be positive.

If  [tex](2-\sqrt{5})^2[/tex] is always positive, then [tex]\sqrt{(2-\sqrt{5})^2 }[/tex] will always be positive.

As √5 > 2 and [tex]\sqrt{(2-\sqrt{5})^2 } > 0[/tex] then [tex]\sqrt{(2-\sqrt{5})^2 }\:+\sqrt{5} > 2[/tex]

So mathematically, the actual solution to the expression is 2.47 (nearest hundredth) not 2.

Answer:

it would be the last answer

Step-by-step explanation:

Answer:

79%

Step-by-step explanation:

Area of rectangular region = 3*6 = 18 sq inches

Diameter of circle = 3 in

-> radius (r) = 3/2 = 1.5 inches

[tex]Area \: of\:both \: circular \: regions \\ =2( \pi {r}^{2} ) \\ =2( 3.14 \times {1.5}^{2} ) \\ = 14.13 \: {in}^{2} \\ \\ P(dart \: landing \: in \: the \: shaded \: area) \\ = \frac{Area \: of \: both \: circular \: regions}{Area \: of \: rectangular \: region} \\ = \frac{14.13}{18} \\ = 0.785 \\ \approx \: 0.79\\=79\%[/tex]

Answer:

1st: 5x

2nd: 6ft

Step-by-step explanation:

I really don't know how just got the answer right.

Answer:

they're are more cows than chickens, they're less chickens than cows, the number of cows is 25 more than the number of chickens

Step-by-step explanation:

hope this helped love!

The central angle (127 degrees) is the angle at point K

The measures of JL and JML are 127 and 233 degrees, respectively

From the complete question, we have:

JL = 127 degrees.

The sum of angles at a point is 360 degrees

So, we have:

JML + 127 = 360

Subtract 127 from both sides

JML = 233

Hence, the measures of JL and JML are 127 and 233 degrees, respectively

Read more about circles and arcs at:

brainly.com/question/25305793

Answer:

8 people

Step-by-step explanation:

120x=750+25x

120x-25x=750

95x=750

x=7.89

round up to 8 and check answer

(25×8)+750=950

950÷8 people =$118.75 per person

Answer:

x = 20

Step-by-step explanation:

these are alternate interior angles, which means they're equal.

you can use that information to make this equation:

x + 40 = 3x

subtract x from both sides

40 = 2x

divide both sides by 2

20 = x

Answer: 5/2 liters (or 2.5 liters) of juice were in the jar to start.

The jar was filled at a rate of 5 minutes.

Step-by-step explanation: Firstly, rearrange the equation so that y = mx + b. If you move the x over, you get -2y = -3x -5. To get rid of the -2 in front of the y, divide both sides by -2. Then you get y = 3/2x + 5/2.

The amount of juice in the jar initially is b, also known as the y-intercept.

If you look at the equation, you see that 5/2 is our y-intercept which means the jar initially had 5/2 liters of juice at the start (this is the same as 2.5 liters because 5 divided by 2 is 2.5).

To find the rate at which the jar was filled, you need to solve for x. Plug in the 10 liters for the y and solve.

y = 3/2x + 5/2

10 = 3/2x + 5/2

Now, subtract 5/2 from both sides.

7.5 = 3/2x

Divided both sides by 3/2 to get x alone, which will give you the number of minutes in which the jar was filled.

5 = x

The jar was filled at a rate of 5 minutes.

Answer:

the answer is 8

Step-by-step explanation:

first i did 4/5x2=8/5=8/10

Answer:

8.

Step-by-step explanation:

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Answer:

area = 84 cm²

Step-by-step explanation:

the quadrilateral is made up of 2 triangles ABD and BDC

area of Δ ABD = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the perpendicular height )

A = [tex]\frac{1}{2}[/tex] × BD × AE = [tex]\frac{1}{2}[/tex] × 14 × 7 = 7 × 7 = 49 cm²

area of Δ BDC = [tex]\frac{1}{2}[/tex] × BD × CF = [tex]\frac{1}{2}[/tex] × 14 × 5 = 7 × 5 = 35 cm²

area of ABCD = 49 + 35 = 84 cm²

Answer:

temperature decreased by -3.5 degrees

Step-by-step explanation:

-14 3/4 = -14.75

-18 1/4 = -18.25

-14.75 + X = -18.25

X = -3.5 or -3 2/4

the answer to this problem is 63

Answer:

A

Step-by-step explanation:

47+58=105 then you just subtract 7 from 75 and you get 68 than you divide 68 by 2

Answer:

The system of equations has no solution.

Step-by-step explanation:

set them equal to eachother. 3x+9=3x-4

Subtract 3x from both sides, giving you 9=-4, which is an equation that is not true because 9 does not equal negative 4. Therefore, there is no solution to this system.

Answer:

4(x+8)

Step-by-step explanation:

4(x+8)=  4 X x + 4 X 8

= 4x + 32

Answer: 4(x+8)

because 4 is the greatest common factor of 4 and 32. you distribute the 4 into the parenthesis and get 4x+32

Step-by-step explanation:

Answer:

Step-by-step explanation:

Dado que la longitud, la profundidad y la altura de un cubo son iguales, podemos acortar el proceso elevando al cubo cualquiera de estas medidas. Sigamos con el ejemplo. Dado que la longitud de cualquier arista de este cubo es de 5 cm (2 pulgadas), podemos hallar el volumen multiplicando 5 x 5 x 5 (o 53) = 125.

Answer:

2^x

Step-by-step explanation:

Since we are needing to show how this is written, x is a power so it will be written small and will go to the upper right corner of the 2 :)

When you see a number like this, we are multiplying 2 by intself x times :)

Hope this helps!

Havea great day!!

Please rate and mark brainliest!!

Answer:

6,138

Step-by-step explanation:

Given the following:

Vocalist needed :

First day (a) = 6

For subsequent days : number doubles

Using the relation. :

Sn = a(r^n -1)/(r -1)

Where a = first term = 6

r = common ratio = r3/r2 = r4/r3

Since number doubles after each consecutive day, then ; r = 2, n = 10

Sn = 6(2^10 -1)/(2 -1)

Sn = 6(1024 - 1) / 1

Sn = 6144 - 6

Sn = 6138

Answer:

165 km

Step-by-step explanation:

We know the ratio of map distance to actual distance is 1 cm : 15 km

Multiplying both sides by 11, we have 11 cm : 165 km

Answer:

36

Step-by-step explanation:

Take 504 ounces of that lemonade and divide that into 14 cups.

And you get 36 ounces for each cup.

Answer:

36

Step-by-step explanation:

504 divided by 14 = 36

Answer:

Just search from other websites

Step-by-step explanation:

easy

Step-by-step explanation:

D.the set of all possible output values.

Answer:

5/2

Step-by-step explanation:

[tex] {( \frac{4}{25} )}^{ - \frac{1}{2} } [/tex]

Apply indices rule and Simplify

[tex] \frac{1}{ {( \frac{4}{25} )}^{ \frac{1}{2} } } = \frac{1}{ \sqrt{ \frac{4}{25} } } = \frac{1}{ \frac{2}{5} } \\ = \frac{1}{1} \div \frac{2}{5} [/tex]

[tex] = \frac{1 \times 5}{1 \times 2} \\ = \frac{5}{2} \\ = 2 \frac{1}{2} [/tex]

The exponential function is given by y = 13000(0.85)ˣ, the amount of rats in 3 years is 7984

An exponential function is in the form:

y = abˣ

Where y,x are variables, a is the initial value of y and b is the multiplication factor.

Let y represent the population of the chicken after x year.

The initial population of 13000 rats, hence a = 13000

The rat population declining by 15% every year. b = 1 - 0.15 = 0.85

The exponential function is given by y = 13000(0.85)ˣ

In 3 years; y = 13000(0.85)³ = 7984

The exponential function is given by y = 13000(0.85)ˣ, the amount of rats in 3 years is 7984

Find out more on exponential function at: https://brainly.com/question/12940982

Answer:

5

Step-by-step explanation:

3+2=5

✎Question:.

[tex]Suzy \: has \: 3 \: apples \: and \: 2 \: cherries \: how\: much \: fruit \: does \: she \: have?[/tex]

✎Given:

✎Answer:

Total fruits=apples+cherries

=2+3

=5✓