Please help I’m struggling 20 points

A pitched roof has a rise of 12.9 meters. If the rise to span ratio is 1:3, what is the span of the roof?

A) 40 meters
B) 6.2 meters
C) 4.3 meters
D) 38.7 meters

Answer:

THERE IS NO SIMPLEST FORM OMG THIS IS SO HARD. I'M EINSTEINS GREAT NEICE AND THIS IS STILL HARD

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:on the circle

Step-by-step explanation:

Point J(-3, 12) is lying on the circle whose center is located at point D(-1, 3).

It is defined as the combination of points that and every point has an equal distance from a fixed point ( called the center of a circle).

We have a center of the circle at D(-1, 3)

And point G(-10, 1) is on the circle.

We know the standard equation of the circle when a center is given:

\(\rm (x-h)^2+(y-k)^2=r^2\)

Where r is the radius of the circle and (h, k) is the center of the circle.

Here (h, k) ⇒ (-1, 3)

The circle equation becomes:

\(\rm (x+1)^2+(y-3)^2=r^2\)

Put the point on the circle equation to get the radius of the circle:

\(\rm (-10+1)^2+(1-3)^2=r^2\)

\(\rm (-9)^2+(-2)^2= r^2\\\\\rm 81+4 = r^2\\\\ \rm r = \sqrt{85} \ units\)

Equation of circle is:

\(\rm (x+1)^2+(y-3)^2=85\)

Now put the point J(-3, 12 ) in the circle equation:

\(\rm (-3+1)^2+(12-3)^2=85\)

4+ 81 ⇒ 85

It means point J is lying on the circle.

Thus, point J(-3, 12) is lying on the circle whose center is located at point D(-1, 3).

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Answer:

5x+y=23

Step-by-step explanation:

y+2=-5(x-5)

y+2=-5x+25

y=-5x+25-2

y=-5x+23

23=y-(-5x)

23=y+5x

5x+y=23

In 609638400 ways eight men and five women can stand in a line so that no two women stand next to each other.

An arrangement of items in a specific order is referred to as a permutation. Here, the components of sets are organized in a linear or sequential manner. The permutation of the set A=1,6 is 2, for instance, 1,6, and 6,1. There is no alternative way to organize the components of set A, as you can see.

In contrast to combination, where the order of the parts is irrelevant, permutation calls for a specific arrangement of the elements in many ways.

We genuinely wonder how the timetables of trains, buses, and airlines are set up in accordance with the convenience of the general population. Of course, the permutation is quite useful in planning the departure and arrival timetables for these.

How to solve?

For 8 men in a line: 8! = 40320  

In order to separate 2 women, we have to choose 5 out of 9

C(9,5) = 9! / 5!4! = 126

Random place 5 women in the 5 chosen places: 5! = 120

Total ways= 40320 * 126 * 120 = 609638400

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Answer:

D and E

C

Step-by-step explanation:

The volume of storage space that the nursery needs for the wood if 60 crates are delivered in an order is; D: 3360 cubic feet

The formula for volume of a cuboid is;

Volume = Length * width * height

We are given;

Length = 4 feet

Width = 3.5 ft

Height = 4 ft

Thus;

Volume of one crate = 4 * 3.5 * 4

= 56 cubic ft

We need a total of 60 crates. Thus;

Total Volume = 60 * 56

Total volume = 3,360 cubic feet

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Answer:

ইহেবে জেজে জেহব ইঞ্জিন জেবি জেজেবেজে jeiehbbr রুরুরব এভে

For the rectangle, the answers will be a. Perimeter=52 inches, b. Perimeter=770 inches and c. Perimeter will be multiplied by 35 also.

What exactly is a rectangle?

A rectangle is a four-sided flat shape with opposite sides that are parallel and equal in length. It is a type of quadrilateral, a polygon with four sides.

Now,

(a) The perimeter of the drawing is the sum of the lengths of all sides of the rectangular garden plus the lengths of the two bricks on the top and bottom and the lengths of the two bricks on the left and right.

The length of the garden in the drawing is 7 inches, and the width is 4 inches. Thus, the perimeter of the garden in the drawing is:

P = 2(7 inches) + 2(4 inches) = 14 inches + 8 inches = 22 inches

Since the garden is surrounded by bricks, we need to add the lengths of the two bricks on the top and bottom and the lengths of the two bricks on the left and right. Each brick has a length of 1 inch, so the total length of the bricks is:

2(1 inch + 7 inches + 1 inch) + 2(1 inch + 4 inches + 1 inch) = 2(9 inches) + 2(6 inches) = 18 inches + 12 inches = 30 inches

Therefore, the perimeter of the drawing is:

22 inches + 30 inches = 52 inches

(b) The actual garden is 35 times larger than the drawing, so its length is 35 × 7 inches = 245 inches, and its width is 35 × 4 inches = 140 inches. Thus, the perimeter of the actual garden is:

P = 2(245 inches) + 2(140 inches) = 490 inches + 280 inches = 770 inches

(c) When the dimensions of the garden are multiplied by 35, the perimeter of the garden is also multiplied by 35. This is because the perimeter is a linear function of the length and width of the garden. Therefore, the effect on the perimeter of the garden is to increase it by a factor of 35.

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To rewrite a division of fractions as a multiplication, flip the numerator and the denominator of the divisor:

Then, multiply the numerators and the denominators:

The GCF of 18 and 36 is 18. Then:

Therefore, the answer is:

Answer:

324 in^2

Step-by-step explanation:

If you transfer the 9 ft to inches you get 108 in

108x3=324

Answer:

21

Step-by-step explanation: 9 + 9 = 18 , 3 + 3 = 6 , 18 + 6 = 21.

Answer:

2.88 mi

Step-by-step explanation:

Answer:

y= 4 x 2(6)

y= 4 x -12

y= -48

Step-by-step explanation:

y= 4 x 2(6)

y= 4 x -12

y= -48

Pa-follow po

Thank you

Answer:

2.

Step-by-step explanation:

This option provides all information needed to solve it.

It correctly tells you that H + P = 14, and has the numbers in the correct places.

Answer:

Javier has $5. He sells a video game on an online auction site for $100. He must pay a $16 fee to the auction site. Javier then splits the.   Not sure

Step-by-step explanation:

Answer:

......................

Answer:

12.9 - 22.7b

Step-by-step explanation

Given the expression 4.3(3-5b) = 1.2b

Open the bracket

4.3(3-5b) = 1.2b

4.3(3)-(4.3)(5b) = 1.2b

12.9 - 21.5b = 1.2b

12.9  - 21.5b - 1.2b

12.9 - (21.5+1.2)b

12.9 - 22.7b

Hence the required expression is 12.9 - 22.7b

Answer:

Yes.

Step-by-step explanation:

10% is 0.10 in decimal form. Therefore, once he pays the $17.80 setup fee and then 0.20f (or $0.20 per flyer), then we would multiply by 10% (Or 0.10).

In conclusion:

Yes. 0.10( 17.50 + 0.20f ) does represent the total cost of the print job.

The area between z=1.1 and z=2.1 is approximately 0.982 - 0.864 = 0.118, rounded to three decimal places.

To find the area below z=1.04 for an Upper N(0,1) density, you will need to use the standard normal distribution table or a calculator with a z-table function. Here are the steps:

1. Locate the value of z=1.04 in the table or use the calculator's function.
2. Find the corresponding area value (which represents the probability or percentage of values below z=1.04).

The area below z=1.04 is approximately 0.851, rounded to three decimal places.

(b) To find the area above z=-1.4 for an Upper N(0,1) density, follow these steps:

1. Locate the value of z=-1.4 in the table or use the calculator's function.
2. Find the corresponding area value.
3. Since we need the area above z=-1.4, subtract the area value found in step 2 from 1.

The area above z=-1.4 is approximately 1 - 0.0808 = 0.919, rounded to three decimal places.

(c) To find the area between z=1.1 and z=2.1 for an Upper N(0,1) density, follow these steps:

1. Locate the values of z=1.1 and z=2.1 in the table or use the calculator's function.
2. Find the corresponding area values for both z=1.1 and z=2.1.
3. Subtract the area value of z=1.1 from the area value of z=2.1 to find the area between them.

The area between z=1.1 and z=2.1 is approximately 0.982 - 0.864 = 0.118, rounded to three decimal places.

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To find a plane containing the point (-5, 6, -6) and the line defined by parametric equations x(t) = 7 - 5t, y(t) = 3 - 6t, and z(t) = -6 - 6t, we can use the point-normal form of the equation of a plane.

The equation of a plane in point-normal form is given by Ax + By + Cz + D = 0, where (A, B, C) is the normal vector to the plane, and (x, y, z) are the coordinates of a point on the plane. We can determine the normal vector by taking the cross product of two direction vectors in the plane.

The direction vector of the line can be obtained by taking the coefficients of t in the parametric equations, which gives us (-5, -6, -6). We can choose any two non-parallel direction vectors in the plane, for example, (1, 0, 0) and (0, 1, 0). Taking the cross product of these two vectors, we get the normal vector (0, 0, -1).

Now, we can substitute the values of the point (-5, 6, -6) and the normal vector (0, 0, -1) into the point-normal form equation. This gives us 0*(-5) + 0*6 + (-1)*(-6) + D = 0, which simplifies to D = -6. Thus, the equation of the plane containing the point (-5, 6, -6) and the given line is 0*x + 0*y - z - 6 = 0, or simply -z - 6 = 0.

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Answer:

see below

Step-by-step explanation:

Move R side to the L side to get

2y^2 -4y +3  = 0

Use quadratic formula to find y = 1 +- i sqrt (2) / 2

The average rate of change of f on the interval [2, 2 + h] is given by 3h + 12. So, the correct answer is A. 3h + 12.

To find the average rate of change of the function f(x) = 3x^2 + 4 on the interval [2, 2 + h], we need to calculate the difference in the function values at the endpoints of the interval and divide it by the difference in the x-values.

Let's evaluate f(x) at the endpoints:

f(2) = 3(2)^2 + 4 = 12 + 4 = 16

f(2 + h) = 3(2 + h)^2 + 4 = 3(4 + 4h + h^2) + 4 = 12 + 12h + 3h^2 + 4 = 3h^2 + 12h + 16

Now, we can calculate the average rate of change:

Average rate of change = (f(2 + h) - f(2)) / (2 + h - 2)

= (3h^2 + 12h + 16 - 16) / h

= (3h^2 + 12h) / h

= 3h + 12

Therefore, the average rate of change of f on the interval [2, 2 + h] is given by 3h + 12. So, the correct answer is A. 3h + 12.

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Answer: Its A

Step-by-step explanation:

3xb= 3b

3x4=12

Answer:

  $72,920  

Step-by-step explanation:

hope this helps

a) Probability of exactly 7 students majoring in STEM: 0.1324

b) Probability of at most 10 students majoring in STEM: 0.7522

c) Probability of at least 7 students majoring in STEM: 0.8235

d) Probability of between 3 and 11 students majoring in STEM: 0.9154

To solve these probability problems, we can use the binomial probability formula. Let's define the variables:

n = number of trials (32 college students were selected)

p = probability of success (probability of majoring in STEM, 29% or 0.29)

x = number of successes (the number of students majoring in STEM)

a) To find the probability of exactly 7 students majoring in STEM:

P(x = 7) = (nCx) * (p^x) * ((1-p)^(n-x))

P(x = 7) = (32C7) * (0.29^7) * ((1-0.29)^(32-7))

b) To find the probability of at most 10 students majoring in STEM:

P(x ≤ 10) = P(x = 0) + P(x = 1) + P(x = 2) + ... + P(x = 10)

c) To find the probability of at least 7 students majoring in STEM:

P(x ≥ 7) = P(x = 7) + P(x = 8) + P(x = 9) + ... + P(x = 32)

d) To find the probability of between 3 and 11 students majoring in STEM:

P(3 ≤ x ≤ 11) = P(x = 3) + P(x = 4) + P(x = 5) + ... + P(x = 11)

Now let's calculate these probabilities using the formulas:

a) P(x = 7):

P(x = 7) = (32C7) * (0.29^7) * ((1-0.29)^(32-7))

Using a calculator, we find: P(x = 7) ≈ 0.1324

b) P(x ≤ 10):

P(x ≤ 10) = P(x = 0) + P(x = 1) + P(x = 2) + ... + P(x = 10)

Using a calculator, we find: P(x ≤ 10) ≈ 0.7522

c) P(x ≥ 7):

P(x ≥ 7) = P(x = 7) + P(x = 8) + P(x = 9) + ... + P(x = 32)

Using a calculator, we find: P(x ≥ 7) ≈ 0.8235

d) P(3 ≤ x ≤ 11):

P(3 ≤ x ≤ 11) = P(x = 3) + P(x = 4) + P(x = 5) + ... + P(x = 11)

Using a calculator, we find: P(3 ≤ x ≤ 11) ≈ 0.9154

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Answer:

14

Step-by-step explanation:

√196

Calculate the square root of 196 and get 14.

14

Answer:

Step-by-step explanation: