a giant radio Mast is held To The Ground by 8 wires for which are Illustrated the other wires are fixed in the same position on the other sides of The Masque of the wires have to be replaced what length of the wires must be purchased​

A Giant Radio Mast Is Held To The Ground By 8 Wires For Which Are Illustrated The Other Wires Are Fixed

Answers

Answer 1

Answer:

Step-by-step explanation:

Pythagoream theorem applies.

The long wires are [tex]\sqrt{45^2+30^2}m[/tex] long, or about 54m long.

The short ones are [tex]\sqrt{20^2+30^2}m[/tex], or about 36m long. You will need 4 of each, so it's [tex]4* 54m + 4*36m = 540m[/tex] of wire


Related Questions

Use the information in the table below to answer the following question.







Name of Fund

NAV

Offer Price


Upton Group

$18.47

$18.96


Green Energy

$17.29

$18.01


TJH Small-Cap

$18.43

$19.05


WHI Health

$20.96

NL






Trevor buys 80 shares of Upton Group and 70 shares of TJH Small-Cap. What is Trevor’s total investment?

Answers

Final answer:

To calculate Trevor's total investment, multiply the number of shares of each fund by their respective offer prices and sum the results. Trevor's total investment for both Upton Group and TJH Small-Cap amounts to $2850.30.

Explanation:

To calculate Trevor's total investment, we need to multiply the number of shares he purchased by their respective offer price and then add the costs of both investments together.

For the Upton Group, the investment is:

80 shares × $18.96 per share = $1516.80

For TJH Small-Cap, the investment is:

70 shares × $19.05 per share = $1333.50

Therefore, Trevor's total investment is:

$1516.80 (Upton Group) + $1333.50 (TJH Small-Cap) = $2850.30

Write a whole number that rounds to 500 if we are rounding to the nearest hundred.

Use an Integer like 6

Answers

It could be anything from 450 - 549 so pick a number within those two (for example, 460, 499, 523, 538, all of those work)

Final answer:

When rounding to the nearest hundred, any whole number from 450 to 549 will round to 500. We consider the tens place in a number to decide whether to round up or down.

Explanation:

In the field of Mathematics, when we are rounding a whole number to the nearest hundred, we look at the tens place. If the tens digit is 5 or above, we round up. If it's 4 or below, we round down. So, any whole number ranging from 450 to 549 will round up or down to 500 when rounding to the nearest hundred. For example, numbers like 475, 500, 525, or 543.

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Let g(x) = 2x2 - 11x. Find g(1).
A) -13
B) -9
C) 9
D) 11

Answers

Answer:

(B) -9

Step-by-step explanation:

g(x) = 2x² - 11x

To find g(1), we substitute x = 1 into g(x).

g(x) = 2x² - 11x

g(1) = 2(1)² - 11(1) = 2 - 11 = -9

ANSWER

B) -9

EXPLANATION

The given function is

[tex]g(x) = 2 {x}^{2} - 11x[/tex]

Put x=1 into the given function to obtain;

[tex]g(1) = 2 {(1)}^{2} - 11(1) [/tex]

Simplify to get:

[tex]g(1) = 2 (1) - 11(1) [/tex]

[tex]g(1) = 2 - 11 = - 9[/tex]

The correct choice is B.

What is the value of x?

Answers

Answer:

The value of x is 26 degrees

Step-by-step explanation:

1: 1/4 of a circle (360 degrees) is 90 degrees.

2 90 - 64 = 26

can anyone Explain in words why these are equivalent expressions.

10(b + 4c) is equivalent to 10b + 40c

Answers

Answer:

The distributive property says that when there is a number outside of parenthesis, this means it should be distributed (or multiplied) to the values inside the parenthesis.

So in this situation, 10 x b = 10b

and 10 x 4c = 40 c

so 10(b + 4c) becomes 10b + 40c once the 10 is distributed within the parenthesis.

I hope this helps!

Answer:

They are equivalent expressions because if you use distributive property and multiply 10*b, then multiply 10*4c, you get 10b+40c

Step-by-step explanation:

Estimate a 15% tip on a dinner bill of 39.51

Answers

Answer:

Tip Total: $ 6

Tip Each Person: $ 6

Total (Bill + Tip): $ 46

Answer:

$6

total cost: $45.51

Step-by-step explanation:

to find 15% of the dinner bill. we multiply 39.51 by the decimal form of 15%, which is 0.15

39.51 x 0.15 ≈ 5.926

you can estimate this by rounding up to a $6 tip, or to include cents, you can round to $5.93

to find the total cost with the estimated amount we can add:

39.51 + 6= $45.51 is the total cost

Use the net as an aid to compute the surface area (rounded to the nearest integer) ofvthe triangular pyramid with an equilateral triangle base. A) 106 ft^2 B) 114ft ^2 C) 122ft^2 D) 130ft^2

Answers

Answer:

106 ft²

Step-by-step explanation:

The surface area of a triangular pyramid is calculated with the following formula:

[tex]SA = \frac{H B}{2} + \frac{3 B S}{2}[/tex]

Where:

H is the height of the triangle base,

B is the side of the base triangle

S is the length of the slant.

so, if we plug in our numbers, we have:

[tex]SA = \frac{5.2 * 6}{2} + \frac{3 * 6 * 10}{2} = 15.6 + 90 = 105.6[/tex]

105.6 sq ft, which we round up to 106 square feet.

The angles of a triangle are 30,60,and 90 ls this a unique triangle?Justify your answer. ​

Answers

A triangle with angles of 30, 60, and 90 degrees is a unique and special type of right triangle known as a 30-60-90 right triangle, which has consistent properties and side ratios in Euclidean geometry.

Yes, a triangle with angles of 30, 60, and 90 degrees is a unique triangle, known as a 30-60-90 right triangle. This classification is based on the fact that in Euclidean geometry, the sum of the angles in any triangle is exactly 180 degrees. Since one of the angles is given as 90 degrees, this indicates it is a right triangle, and the remaining angles must add up to 90 degrees. Given that the other two angles are 30 and 60 degrees, this satisfies the requirement exactly, making it a specific type of right triangle with consistent properties.

For example, the sides of a 30-60-90 triangle are always in the ratio 1:√3:2. The side opposite the 30-degree angle is the shortest; the side opposite the 60-degree angle is √3 times longer; and the hypotenuse, opposite the 90-degree angle, is twice as long as the shortest side. These proportions and the angles create the unique properties of the 30-60-90 triangle, and they can be applied in trigonometric calculations and proofs. This distinct set of angles and side ratios is what makes the 30-60-90 triangle a special and unique case in geometry.

I don’t know the answer to the question

Answers

Answer:

see explanation

Step-by-step explanation:

P - G

= 8[tex]w^{4}[/tex] - 3w²z² + [tex]z^{4}[/tex] - ( - 3[tex]w^{4}[/tex] + 2w²z² + 5[tex]z^{4}[/tex] )

= 8[tex]w^{4}[/tex] + 2w²z² + [tex]z^{4}[/tex] + 3[tex]w^{4}[/tex] - 2w²z² - 5[tex]z^{4}[/tex]

Collect like terms

= (8[tex]w^{4}[/tex] + 3[tex]w^{4}[/tex] ) + (- 3w²z² - 2w²z² ) + ([tex]z^{4}[/tex] - 5[tex]z^{4}[/tex] )

= 11[tex]w^{4}[/tex] - 5w²z² - 4[tex]z^{4}[/tex]

Can someone explain how to do this?

Answers

Answer:

To find the value of the y units, u have to multiply any x unit with the first y unit given but not 0

Step-by-step explanation:

Which of the following is a composite number?

A: 47
B: 91
C: 101
D: 131

Answers

Answer:

91

Step-by-step explanation:

91 is what I think makes the most sense

Really need help on this guys!

Answers

Hello!

The answer is:

The center of the circle is the point (-9,-2) and the circle has a radius of 6 units.

Why?

To solve the problem, we need to use the given equation which is in the general form, and then, use it transform it to the standard form in order to find the center of the circle and its radius.

So,

We are given the circle:

[tex]x^{2}+y^{2}+18x+4y+49=0[/tex]

We know that a circle can be written in the following form:

[tex](x-h)^{2}+(y-k)^{2}=r^{2}[/tex]

Where,

h is the x-coordinate of the center of the circle

k is the y-coordinate of the center of the circle

r is the radius of the circle.

So, to find the center and the radius, we need to perform the following steps:

- Moving the constant to the other side of the equation:

[tex]x^{2}+y^{2}+18x+4y=-49[/tex]

- Grouping the terms (x and y):

[tex]x^{2}+18x+y^{2}+4y=-49[/tex]

- Completing squares for both variables, we have:

We need to sum to each side of the equation the following term:

[tex](\frac{b}{2})^{2}[/tex]

Where, b, for this case, will the coefficients for both terms that have linear variables (x and y)

So, the variable "x", we have:

[tex]x^{2} +18x[/tex]

Where,

[tex]b=18[/tex]

Then,

[tex](\frac{18}{2})^{2}=(9)^{2}=81[/tex]

So, we need to add the number 81 to each side of the circle equation.

Now, for the variable "y", we have:

[tex]y^{2} +4y[/tex]

Where,

[tex]b=4[/tex]

[tex](\frac{4}{2})^{2}=(2)^{2}=4[/tex]

So, we need to add the number 4 to each side of the circle equation.

Therefore, we have:

[tex](x^{2}+18x+81)+(y^{2}+4y+4)=-49+81+4[/tex]

Then, factoring, we have that the expression will be:

[tex](x+9)^{2}+(y+2)^{2}=36[/tex]

- Writing the standard form of the circle:

Now,  from the simplified expression (after factoring), we can write the circle in the standard form:

[tex](x+9)^{2}+(y+2)^{2}=36[/tex]

Is also equal to:

[tex](x-(-9))^{2}+(y-(-2))^{2}=36[/tex]

Where,

[tex]h=-9\\k=-2\\r=\sqrt{36}=6[/tex]

Hence, the center of the circle is the point (-9,-2) and the circle has a radius of 6 units.

Have a nice day!

A kite store has a kite tethered to the top of a 6 foot pole at the beach. The kite is flying at a height, H, of 186 ft above the ground. The angle between the string and the ground is 60°. What is the length of the kite string, L?

Answers

See the attached picture for the solution.

Round the answer as needed.

Answer:

211.8  feet.

Step-by-step explanation:

This problem models a right triangles, where the hypothenuses is the length of the string, and one leg would be 180ft, which is the difference between the total height from the ground and the pole height (186-6=180). Also, the angle in front of the knowing leg is 60.

As, based on all given values, we can apply trigonometric reasons to the hypothenuse, which is L.

[tex]sin60=\frac{180}{L}\\ L=\frac{180}{sin60}\\ L=\frac{180}{\frac{\sqrt{3} }{2} }\\ L=\frac{360}{\sqrt{3}}=\frac{360}{1.7} \approx 211.8ft[/tex]

Therefore, the length of the kite string is around 211.8 feet.

What is the term used to describe the distribution of a data set with one mode? a. Multimodal b. Unimodal c. Nonmodal d. Bimodal

Answers

What is the term used to describe the distribution of a data set with one mode? b. Unimodal

A.

Step-by-step explanation:

Multimodal

❤❤❤❤❤❤❤❤❤❤❤❤❤

Select whether the number is rational, irrational, or imaginary.
3/11
rational
irrational
imaginary

Answers

Irrational because it can not be a whole number

A coral reef grows 0.13 m every week. How much does it grow in 15 weeks? Write your answer in centimeters

Answers

First you want to multiple .13 by 15 giving you 1.95 meters

Then you want to times that by 100 since there are 100 centimeters in a meter

giving you 195 centimeters

A coral reef grows 195 cm in 15 weeks.

What is the unitary method?

The unitary approach is a strategy for problem-solving that involves first determining the value of a single unit, then multiplying that value to determine the required value.

The unitary method exists as a technique for solving a situation by first finding the value of a single unit, and then discovering the essential value by multiplying the single unit value.

Given

in 1 week , coral grows 0.13m

in 15 weeks it grows = [tex]0.13* 15 =1.95m[/tex]

1 m = 100cm

1.95 m = [tex]1.95 * 100 = 195 cm[/tex]

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Julian has a computer game that responds with either "go" or "stop" when a button is pressed. The probability that the response is "go" is not known to game players. Julian presses the button repeatedly and records the number of "go" responses.

Number of button presses:
20
50
200

Number of "go" response:
3
9
38

Calculate the relative frequency of a "go" response for each of the sample sizes.

Enter your answers, as decimals, in the boxes.

3/20=

​ 9/50=

​ 38/200 =

Answers

Answer:

Step-by-step explanation:

I think you are just asking for the decimal answers.

3/20 = 0.15

9/50 = 0.18

38/200 = 0.19

Write a general formula to describe the variation: x varies jointly with the inverse of the sum of y and z

Answers

Answer:

x = k/(y+z)

Step-by-step explanation:

We need to write a general formula to describe the variation: x varies jointly with the inverse of the sum of y and z

it can be written as

x ∝ 1/(y+z)

or can be written as

x = k/(y+z)

where k is the constant of variation introduced when we remove the ∝ sign.

Use sum or difference identities to find the exact value of sin285

Answers

Angle sum identity:

[tex]\sin285^\circ=\sin(240^\circ+45^\circ)=\sin240^\circ\cos45^\circ+\cos240^\circ\sin45^\circ[/tex]

Now

[tex]\sin240^\circ=\sin(180^\circ+60^\circ)=-\sin60^\circ=-\dfrac{\sqrt3}2[/tex]

[tex]\cos240^\circ=\cos(180^\circ+60^\circ)=-\cos60^\circ=-\dfrac12[/tex]

[tex]\sin45^\circ=\cos45^\circ=\dfrac1{\sqrt2}[/tex]

so we end up with

[tex]\sin285^\circ=-\dfrac{\sqrt3}{2\sqrt2}-\dfrac1{2\sqrt2}=-\dfrac{\sqrt3+1}{2\sqrt2}=-\dfrac{\sqrt6+\sqrt2}4[/tex]

What is the total perimeter of this figure in inches?

Answers

Answer:

12

Step-by-step explanation:

400 degree F is what in Centigrade

Answers

Answer:

400° F = 204.4° C

Step-by-step explanation:

We are given a temperature 400 degree in Fahrenheit and we are to convert in into another unit that is Centigrade (also known as Celsius).

We know that 0 degree Centigrade is equal to 32 Fahrenheit so we will use the following formula for conversion of units:

(32°F − 32) × 5/9 = 0°C

(400°F − 32) × 5/9 = 204.4° C

An expression is shown below:

f(x) = −8x2 + 30x + 8

Part A: What are the x-intercepts (zeros) of the graph of the f(x)? Show your work.

Part B: Is the vertex of the graph of f(x) going to be a maximum or minimum? Justify your answer

Part C: What is the y intercept of the graph?

Answers

Answer:

Part A. the x-intercepts are: x=4 and x= -1/4

Part B. The vertex of the graph is going to be a maximum

Part C. y-intercept is y=8

Step-by-step explanation:

We have the following function:

f(x) = −8x^2 + 30x + 8

Part A: What are the x-intercepts (zeros) of the graph of the f(x)?

To find the x-intercepts we have to make y=0 and solve for x. Then:

y = −8x^2 + 30x + 8

0 = −8x^2 + 30x + 8

8x^2 - 30x - 8  = 0

Dividing the whole expression by 8:

x^2 - 15/4x - 1  = 0

Using the quadratic formula we have that:

(x−4)(4x+1)

So the x-intercepts are: x=4 and x= -1/4

Part B.  Is the vertex of the graph of f(x) going to be a maximum or minimum?

The vertex of the graph is going to be a maximum, given that the quadratic term is multiplied by a negative sign.

PArt C. What is the y intercept of the graph?

To calculate the y-intercept we need to make x=0, so:

y = −8(0)^2 + 30(0) + 8 = 8

So the y-intercept is y=8

A survey asked two age groups which summer sport they most preferred. The results are shown in the table below.

Age 10-19 Age 20-29 Total
Ski 12 15 27
Swim 102 88 190
Kayak 35 42 77
Hike 23 123 146
Total 172 268 440
Of the total people surveyed, what is the relative frequency of 10-19 year olds who preferred to ski?

2.73%
6.98%
12%
44.44%

Answers

Answer:

6.98%

Step-by-step explanation:

To find relative frequency we divide frequency with the total number participants in that age bracket

Total number of participants age 10-19=172.....................given in the table

The frequence for those who ski at age 10-19=12---------------given in table

Relative frequency= 12/172 = 0.0697

Expressed as a percentage= 0.06976×100 =6.98%

Answer:

The correct answer option is 6.98%.

Step-by-step explanation:

We are given the results of a survey which asked  two age groups which summer sport they most preferred.

We are to find the relative frequency of 10-19 year old who preferred to ski.

For that, we will divide the number of kids aged 10-19 years who prefer to ski by the total number of people who prefer to ski and multiply by 100.

Relative frequency = 12/172 * 100 = 6.98%

144 divided by 12 what is the answer

Answers

Answer:

12

Step-by-step explanation:

12 times 12 is 144

Answer:

12.

Step-by-step explanation:

If you were to divide 144 into 12 parts, each part would have 12 pieces. Another way to imagine it would be setting up a fraction (144/12) and then simplifying until you get 12/1.

Vito buys a twin mattress that is 39 inches wide and 75 inches long. He wants to buy a quilt to cover the top of the mattress. Which expression can he use to find the area of the top of the mattress?
39 + 75
2(39) + 2(75)
39 × 75
39(75) + 39(75)

Answers

Answer:b 2(39) +2(75)

Step-by-step explanation:

Because there are four corners of a mattress your going to take the length and width of the mattress and multiply each time to then add them to get the exact size your needing

Answer:

39 × 75

Step-by-step explanation:

Since, the shape of the twin mattress is rectangular,

Given,

The length of the mattress = 75 inches,

Width of the mattress = 39 inches,

Now, the the area of the top of the mattress( which is covered by the quilt) = Area of the mattress

We know that,

The Area of a rectangle =  Length × Width

Hence, the area of the top of the mattress = 75 × 39

= 39 × 75

Third option is correct.

30 POINTS Alex runs 2/3 of a mile each day how many days does he need to run before he has to run a whole number of miles​

Answers

Answer:

he has to run twice for it to be at least a mile

The mean we love the nine players on three reserve players is 188 pounds. Find the mean weight of the three reserve players

Answers

Final answer:

The mean weight of the three reserve players is found by rearranging the formula for calculating the mean, substituting known values, and solving the equation.

Explanation:

Given that the mean weight of all 12 players (nine players + three reserve players) is 188 pounds. Let's denote the missing weight of the three reserve players as 'x', 'y', and 'z'.

The formula to calculate mean is the sum of all the weights divided by the number of players. Here, mean weight equals (9*188 + x + y + z) / 12.

As we know that the mean weight is 188 pounds. We can substitute it back into the formula:
9*188 + x + y + z = 188 * 12.
This simplifies to x + y + z = 188 * 12 - 9 * 188.

We divide by 3 (since we are looking for the mean weight of three players): (x + y + z) / 3 = (188*12 - 9*188) / 3. Thus, the mean weight of the three reserve players can be found by solving this equation.

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Please help me!!! Geometry question.

Answers

Answer:

The volume of the figure is [tex](\frac{l^{3}}{3})[\frac{\pi }{2}-1]\ units^{3}[/tex]

Step-by-step explanation:

we know that

The volume of the figure is equal to the volume of the cone minus the volume of the square pyramid

step 1

Find the volume of the cone

The volume of the cone is equal to

[tex]V=\frac{1}{3}\pi r^{2}h[/tex]

we have

[tex]r=\frac{l\sqrt{2}}{2}\ units[/tex] ----> the diagonal of the square base of pyramid is equal to the diameter of the cone

[tex]h=l\ units[/tex]

substitute

[tex]V=\frac{1}{3}\pi (\frac{l\sqrt{2}}{2})^{2}(l)[/tex]

[tex]V=\frac{1}{6}\pi (l)^{3}\ units^{3}[/tex]  

step 2

Find the volume of the square pyramid

The volume of the pyramid is equal to

[tex]V=\frac{1}{3}Bh[/tex]

where

B is the area of the base

h is the height of the pyramid

we have

[tex]h=l\ units[/tex]

[tex]B=l^{2}\ units^{2}[/tex]

substitute

[tex]V=\frac{1}{3}l^{2}(l)[/tex]

[tex]V=\frac{1}{3}l^{3}\ units^{3}[/tex]

step 3

Find the volume of the figure

[tex]\frac{1}{6}\pi (l)^{3}\ units^{3}-\frac{1}{3}l^{3}\ units^{3}=(\frac{l^{3}}{3})[\frac{\pi }{2}-1]\ units^{3}[/tex]

7 1/3 ∙x = 1.6÷ 6/11

Answers

Answer:

x=0.4

Step-by-step explanation:

Answer:

x=0.4

Step-by-step explanation:

ik im good

My basketball team plays four games per week. During the first four weeks, we lost all 16 of our games. During week 5, we won three games and lost one game, bringing us to 3 wins and 17 losses for the season so far. Each week after that, we win 3 games and lose 1 game. At the end of which week will my team have won at least 65% of its games total for the first time in the season?

Answers

Answer:

You need 30 total weeks to win at least 65% games

Step-by-step explanation:

Team have played = 20 games

Number of winning games = 3

Let x represents the number of additional weeks.

You have won 3 games per week. Therefore you will win 3x additional games.

We know that 65% = 0.65

Therefore,

3+3x/20+4x = 0.65

By cross multiplication:

3+3x= 0.65(20+4x)

3+3x = 13+2.6x

Combine the like terms:

3x-2.6x = 13-3

0.4x=10

4x/10 =10

4x = 10*10

4x=100

Divide both sides by 4

4x/4 = 100/4

x = 25

since you have already played 5 weeks...you need to play 25+5 = 30 weeks.

Therefore you need 30 total weeks to win at least 65% games....

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