what is the area of a 70 mm circle

The other answer is wrong the following is the sample response.

Answer:

Sample Response: The population of Alan's survey is all the students at the town's high school. The sample must be representative of the population. A possible sample would be an equal number of freshman, sophomores, juniors, and seniors.

Step-by-step explanation:

just finished the assignment and this was the sample response.

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Alan's survey population encompasses all students at the high school with art preferences. A sample could be randomly chosen from students from each grade or art class, reflecting the school's diversity and maintained by a random sampling method for fairness and representation.

The population of Alan's survey is all the students at the town’s high school who have preferences for types of art. To conduct his survey, Alan needs to choose a sample, which is a smaller group from the population that can provide reliable information about the entire population's art preferences. An example of a possible sample would be selecting a certain number of students from each grade level or art class to ensure a variety of perspectives. It could also involve stratification by demographic characteristics such as age, gender, socioeconomic status, or ethnicity if these factors are believed to influence art preferences.

An efficient method to create a representative sample could be to use a random sampling technique where each student has an equal chance of being selected. For instance, Alan could use a random number generator to pick students from a list, or he might use a stratified random sampling by first dividing the student body into subgroups (such as by grade or art class) and then randomly selecting students from each subgroup.

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Answer:

[tex]m\angle KLM=53.13^o[/tex]

Step-by-step explanation:

see the attached figure to better understand the problem

step 1

Find the measure of angle KOM

In the triangle KOM

we have

[tex]KO=MO=r=5\ units[/tex]

[tex]KM=8\ units[/tex]

Applying the law of cosines

[tex]8^2=5^2+5^2-2(5)(5)cos(KOM)[/tex]

[tex]64=50-50cos(KOM)[/tex]

[tex]50cos(KOM)=50-64[/tex]

[tex]50cos(KOM)=-14[/tex]

[tex]cos(KOM)=-14/50[/tex]

[tex]m\angle KOM=cos^{-1}(-14/50)[/tex]

[tex]m\angle KOM=106.26^o[/tex]

step 2

Find the measure of the arc KM

we know that

[tex]arc\ KM=m\angle KOM[/tex] ----> by central angle

we have

[tex]m\angle KOM=106.26^o[/tex]

so

[tex]arc\ KM=106.26^o[/tex]

step 3

Find the measure of angle KLM

we know that

The inscribed angle is half that of the arc comprising  

[tex]m\angle KLM=\frac{1}{2}[arc\ KM][/tex]

we have

[tex]arc\ KM=106.26^o[/tex]

substitute

[tex]m\angle KLM=\frac{1}{2}[106.26^o][/tex]

[tex]m\angle KLM=53.13^o[/tex]

Answer:

7.2

Step-by-step explanation:

You divide 225 by 30 and get 7.2

Answer:

c

Step-by-step explanation:

For this case we must simplify the following expression:

[tex]\frac {1} {2} (6 \frac {2} {3} + \frac {1} {4}) - \frac {5} {24} =[/tex]

We convert the mixed number to an improper fraction:

[tex]6 \frac {2} {3} = \frac {3 * 6 + 2} {3} = \frac {20} {3}[/tex]

So, by rewriting we have:

[tex]\frac {1} {2} (\frac {20} {3} + \frac {1} {4}) - \frac {5} {24} =\\\frac {1} {2} (\frac {4 * 20 + 3 * 1} {4 * 3}) - \frac {5} {24} =\\\frac {1} {2} (\frac {80 + 3} {12}) - \frac {5} {24} =\\\frac {1} {2} (\frac {83} {12}) - \frac {5} {24} =[/tex]

[tex]\frac {83} {24} - \frac {5} {24} =\\\frac {83-5} {24} =\\\frac {78} {24} =\\\frac {39} {12} =\\\frac {13} {4} =\\3 \frac {1} {4}[/tex]

Answer:

[tex]3 \frac {1} {4}[/tex]

Answer:

B. x² + 16x + 15

Step-by-step explanation:

Area of parallelogram = base x height

A = (x + 15) (x + 1) = x² + 16x + 15

Answer:

Step-by-step explanation

But the question does not say exactly what should be solve for.

Answer:

The actual distance is 127 miles.

Step-by-step explanation:

Given:

On a map, the distance from Los Angeles to San Diego is 6.35 cm.

The scale is 1 cm = 20 miles.

Now, to find the actual distance.

Let the actual distance be [tex]x\ miles.[/tex]

And the distance on map is 6.35 cm.

So, 6.35 cm is equivalent to [tex]x\ miles.[/tex]

And as given on the scale 1 cm is equivalent to 20 miles.

Now, to get the actual distance by using cross multiplication method:

[tex]\frac{6.35}{x} =\frac{1}{20}[/tex]

By using cross multiplication we get:

⇒  [tex]127=x[/tex]

⇒  [tex]x=127\ miles.[/tex]

Therefore, the actual distance is 127 miles.

Answer:

4

Step-by-step explanation:

3.6m = 14.4

m = 14.4 ÷ 3.6

m = 4

Answer:

39mm

Step-by-step explanation:

Final answer:

Using the scale factor of 3:1, the length of side WZ from trapezoid WXYZ can be calculated by dividing the known length of side SV from trapezoid STUV by the scale factor. The length of WZ is found to be 51 mm.

Explanation:

If trapezoid STUV is a scaled version of trapezoid WXYZ with a scale factor of 3:1, we can use this scale factor to determine the length of side WZ given the lengths of ST and SV. To find the length of WZ, we divide the length of SV by the scale factor. Since SV = 153 mm and the scale factor is 3, we perform the division 153 mm / 3 to get 51 mm as the length of WZ.

A proportion is a mathematical statement that two ratios or fractions are equal. It is used to express the equality of two fractions that compare two numbers or quantities to each other. For example, if we have two fractions a/b and c/d, a proportion states that these two fractions are equivalent: a/b = c/d. Proportions are fundamental in various branches of mathematics and applications, including solving problems involving scales, maps, and ratios in real-life scenarios.

Answer:

The fractions [tex]\frac{3}{9},\frac{3}{10},\frac{3}{11},\frac{3}{12}[/tex] are not in order from least to greatest.

Step-by-step explanation:

Given order of fractions from least to greatest:

[tex]\frac{3}{9},\frac{3}{10},\frac{3}{11},\frac{3}{12}[/tex]

To check if the fractions are in correct order.

Solution:

The fractions given have same numerators but different denominators.

For fractions the higher the denominator the lower is the value of that fraction.

Thus, in the given list the least value fraction will be the fraction with the greatest denominator which is [tex]\frac{3}{12}[/tex] and the greatest value fraction will be the fraction with the least denominator which is [tex]\frac{3}{9}[/tex]

So, the order of the fractions from least to greatest is not correct. Instead the order is from greatest to least.

The correct order from least to greatest should be:

[tex]\frac{3}{12},\frac{3}{11},\frac{3}{10},\frac{3}{9}[/tex].

Answer:

No, Mary is incorrect. If you turn the fractions into decimals, 1/4 would be 0.25 and 1/8 would be 0.12½. Since 0.25 is greater than 0.12½, Mary is incorrect.

Mary's reasoning is incorrect because in fractions, the larger the denominator, the smaller the fraction's value, making 1/4 greater than 1/8.

Mary's reasoning that 1/8 is greater than 1/4 because 8 is greater than 4 is not correct. In the context of fractions, the larger the denominator (the bottom number), the smaller each part of the whole it represents. Thus, 1/4 is actually greater than 1/8 because dividing something into 4 parts results in larger parts than dividing it into 8 parts. This can be further understood by transforming both fractions into equivalent fractions with a common denominator or by converting them into decimal form (0.25 for 1/4 and 0.125 for 1/8) to directly compare their sizes.

Answer:

Equation of line is given by:

[tex]y=2x+14[/tex]  

Step-by-step explanation:

Given points:

[tex](-8,-2)\ and\ (-4,6)[/tex]

Slope of line [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

where [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex]  is a point on the line

[tex]m=\frac{6-(-2)}{-4-(-8)}[/tex]

[tex]m=\frac{6+2}{-4+8}[/tex]

[tex]m=\frac{8}{4}[/tex]

∴ [tex]m=2[/tex]

Point-slope equation of line is given by:

[tex]y-y_1=m(x-x_1)[/tex]  

where [tex](x_1,y_1)[/tex] is a point on the line and [tex]m[/tex] is slope of line.

Using point [tex](-8,-2)[/tex] and slope [tex]m=2[/tex] point-slope equation of line is given by:

[tex]y-(-2)=2(x-(-8))[/tex]  

Simplifying.

[tex]y+2=2(x+8)[/tex]  

Using distribution.

[tex]y+2=2x+16[/tex]  

Subtracting 2 to both sides.

[tex]y+2-2=2x+16-2[/tex]  

[tex]y=2x+14[/tex]  

Thus, equation of line is [tex]y=2x+14[/tex]  

Answer:

1/8(A)+(3/4)(168-A)=76 is an equation to find the mass of A, the mass of A is 80 grams.

Step-by-step explanation:

What do we know?

Both sacks together are 168 grams. Therefore;

A+B=168

One eighth of sack A and three quarters of sack B is equal to 76 grams. Therefore;

1/8(A)+(3/4)B=76

Let's solve using the substitution method to find A. First, we need to isolate and then substitute B for an expression containing A.

A+B=168

B=168-A

Now that we have isolated B, we can substitute '160-A' for B in the other equation.

1/8(A)+(3/4)(168-A)=76

1/8(A)-3/4(A)+126=76

1/8(A)-3/4(A)+126=-50

-5/8(A)=-50

A=80

Answer:

[tex]\large\boxed{\theta=k\pi,\ k\in\mathbb{Z}}[/tex]

Step-by-step explanation:

[tex]\sec\thets\cdot\sin\theta=0\iff \sec\theta=0\ \vee\ \sin\theta=0\\\\\sec\theta\neq0\ \text{for any value of}\ \theta\\\\\sin\theta=0\Rightarrow\theta=k\pi\ \text{where}\ k\in\mathbb{Z}[/tex]

Answer:

The median refer to the middle

value or number when arranged ascendingly or descendingly therefore the MEDIAN IS 36.8

Step-by-step explanation:

By arranging the numbers ascendingly we have

5.9, 11.2, 13.9, 16.6, 22.9, 36.8, 43.1, 43.7, 44.2, 45.1, 49

Therefore the median which is the number at the centre is 36.8

Answer:

There is no answer.

0 is rational since it can be written as a fraction (0/5, 0/69)

1 is obviously rational. 7/8 is .875 and 5 1/4 is 5.25

Answer:

The scale factor is 2

x=11 units

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional and its corresponding angles are congruent

The ratio of its corresponding sides is called the scale factor

In this problem

Triangles RST and MNO are similar

so

[tex]\frac{NO}{ST}=\frac{MN}{RS}[/tex]

substitute the given values

[tex]\frac{x}{5.5}=\frac{6}{3}[/tex]

solve for x

[tex]\frac{x}{5.5}=2[/tex]

[tex]x=2(5.5)\\x=11\ units[/tex]

The scale factor of triangle RST to triangle MNO (enlargement) is equal to 2

Answer:

AB = 40 cm

Distance = [tex]10\sqrt{3}[/tex] cm

Step-by-step explanation:

Draw two heights DE and CF. These heights together with bases of trapezoid form rectangle DEFC. In this rectangle, DC=EF=20 cm.

Consider right triangle ADE. In this triangle, angle ADE has the measure of 30° (the sum of the measures of all interior angles is always 180°, so m∠ADE=180°-60°-90°=30°)

Leg opposite to 30° angle is equal to half of the hypotenuse, so

[tex]AE=\dfrac{1}{2}AD=\dfrac{1}{2}\cdot 20=10\ cm[/tex]

Similarly, in triangle CBF, BF=10 cm.

Hence,

[tex]AB=AE+EF+FB=10+20+10=40\ cm[/tex]

The height of the trapezoid (the second leg of triangle ADE) is the distance between DC and AB. By the Pythagorean theorem,

[tex]AD^2=AE^2+DE^2\\ \\DE^2=20^2-10^2=400-100=300\\ \\DE=\sqrt{300}=10\sqrt{3}\ cm[/tex]

The cost of each bush is $ 18.49

Let "f" be the cost of each flower

Let "b" be the cost of each bush

Given that Mrs. Kelly buys 15 flowers and 3 bushes for a total cost of $160.32

15 flowers x cost of each flower + 3 bushes x cost of each bush = 160.32

[tex]15 \times f + 3 \times b = 160.32[/tex]

15f + 3b = 160.32  ----- eqn 1

Each bush costs $11.50 more than each flower

Cost of each bush = 11.50 + cost of each flower

b = 11.50 + f  ------ eqn 2

Let us solve eqn 1 and eqn 2 to find values of "b" and "f"

Substitute eqn 2 in eqn 1

15f + 3(11.50 + f) = 160.32

15f + 34.5 + 3f = 160.32

18f = 160.32 - 34.5

18f = 125.82

Substitute f = 6.99 in eqn 2

b = 11.50 + 6.99 = 18.49

Thus the cost of each bush is $ 18.49

Answer:

[tex]\frac{14}{6}[/tex]

Step-by-step explanation:

A mixed fraction of the form [tex]a\frac{b}{c}[/tex] can be converted into an improper fraction by writing it in the form [tex]\frac{(ac)+b}{c}[/tex] . By applying this formula , we can see that [tex]2\frac{2}{6} = \frac{12 +2}{6} =\frac{14}{6}[/tex] . As numerator is greater than the denominator , we can see that the answer is greater than one and thus it is an improper fraction.

To find the value after 20 years, use the future value of a series formula with the given parameters, resulting in an approximate amount of $9,321.

To find the value of $300 saved annually at 4.5% interest compounded annually after 20 years, we use the future value of a series formula:

FV = [tex]P * ((1 + r)^n - 1) / r[/tex]

Where:

Substituting the given values:

FV = $300 * ((1 + 0.045)^20 - 1) / 0.045

= $300 * ((1.045)^20 - 1) / 0.045

= $300 * (2.398 - 1) / 0.045

= $300 * 1.398 / 0.045

= $300 * 31.07

= $9,321

Therefore, after 20 years, the value will be approximately $9,321.

Answer:

She traveled 13 23/56 miles on the third day.

Step-by-step explanation:

HOPE THIS HELPED ;3

Answer:

[tex]x\sqrt{7} - 49\sqrt{x}[/tex]

Step-by-step explanation:

[tex]\begin{array}{rcl}\sqrt{7x}(\sqrt{x} - 7\sqrt{7}) & = & \sqrt{7x}\times\sqrt{x}- 7\sqrt{7}\times\sqrt{7x} \\ & = & \sqrt{7}\times\sqrt{x}\times\sqrt{x} - 7\sqrt{7}\times\sqrt{7}\times\sqrt{x}\\& = & \sqrt{7}\times x - 7\times 7\times\sqrt{x}\\& = &\mathbf{ x\sqrt{7} - 49\sqrt{x}}\\\end{array}[/tex]

Answer:

0.033

Step-by-step explanation:

Use binomial probability:

P = nCr pʳ (1−p)ⁿ⁻ʳ

where n is the number of trials,

r is the number of successes,

p is the probability of success,

and q is the probability of failure (1-p).

Here, p = 0.5, q = 0.5, and n = 11.

We need to find P when r is 0, 1, and 2, then add up the results to get the total probability.

r = 0:

P = ₁₁C₀ (0.5)⁰ (0.5)¹¹⁻⁰

P ≈ 0.0005

r = 1:

P = ₁₁C₁ (0.5)¹ (0.5)¹¹⁻¹

P ≈ 0.0054

r = 2:

P = ₁₁C₂ (0.5)² (0.5)¹¹⁻²

P ≈ 0.0269

Therefore, the total probability is:

P = 0.0005 + 0.0054 + 0.0269

P = 0.0328

Round to the thousandths place, the probability is 0.033.

The y intercept is (0, 12)

Solution:

Given function is:

[tex]f(x) = 8x^5 - 3x^3 + 12[/tex]

To find: y intercept

y-intercept or vertical intercept is a point where the graph of a function or relation intersects the y-axis of the coordinate system.

To find the y intercept using the equation of the line, plug in 0 for the x variable and solve for y

Substitute x = 0 in given function

[tex]f(0) = 8(0) -3(0) + 12[/tex]

y = 0 - 0 + 12

y = 12

Thus y - intercept is (0, 12)

Answer:

m/d = V

Step-by-step explanation:

Answer:

m/d=V

Step-by-step explanation:

I did the quiz

Answer:

2 1/2 or 2.5

Step-by-step explanation:

The area is the length times the width. To solve for the length, you have this equation using the data you already have. 8 1/2 = 3 2/5 x length. 8 1/2 / 3 2/5 = length. 8.5/3.4 = length. length = 2.5 OR to do this fraction wise, you can make them fractions and divide, making 8/1 -> 16/2 + 1/2 = 17/2 and 3/1 - 15/5 + 2/5 = 17/5 and divide those, which ends up at 2 1/2 but fraction wise makes it more complicated

Answer:

The volume of the prism will be given by 204.7 cubic cm.

Step-by-step explanation:

The area of a triangle whose three side lengths are given is equal to

Δ = [tex]\sqrt{s(s - a)(s - b)(s - c))}[/tex] .......... (1)

Where, a, b, and c are the three side lengths and s is the half perimeter i.e.

[tex]s = \frac{a + b + c}{2}[/tex] ......... (2)

Now, in our case, [tex]s = \frac{6 + 7 + 6}{2} = 9.5[/tex] {From equation (2)}

So, Δ = [tex]\sqrt{9.5(9.5 - 6)(9.5 - 7)(9.5 - 6)} = 17.05[/tex] sq. cm.

{From equation (1)}

Hence, the volume of the prism will be given by (17.05 × 12) = 204.7 cubic cm. (Answer)

The ratio of the vertical rise to the horizontal distance on the ramp is equal to tan B.

The given figure represents a ramp with a length of 17 feet, rising 8 feet above the floor, and covering a horizontal distance of 15 feet. To find the ratio of the vertical rise to the horizontal distance (tan B), we can use the trigonometric function tangent (tan).

Tan B = vertical rise / horizontal distance = 8 feet / 15 feet = 0.5333

Answer:

30%

Step-by-step explanation:

We can translate the question into an equation.

500x=150

x=150/500

x=3/10=30%

answer: 30%