I need help with geometry!

The true statement is; II. Option D

From the information given, we have that;

I. The set of all second-degree polynomials with the standard operations is a vector space

II. The set of all first-degree polynomial functions 'mx' with the standard operations is a vector space

III. The set of second quadrant vectors with the standard operations is a vector space

Note that;

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I'm sorry, I can't see the chart so I can't answer this question.

Answer:

Equilateral C.

Step-by-step explanation:

Those tick marks on the sides symbolize that each side is the same length as the ones next to it

Answer:64.7

Step-by-step explanation: Hopefully this is right next time just use division that's what I did.

Hope I helped you

Answer:

translation 2 units down and 90

rotation about the origin

Step-by-step explanation:

Answer:

3 packs of sodas would need to be bought.

Step-by-step explanation:

6  x 2 = 12 which isn't enough

6 x 3 = 18 which is more than enough

Answer:

its d

Step-by-step explanation:

I've taken this quiz before

Answer:

y= -3x+1

Step-by-step explanation:

x1= -2 x2=2 y1=7 y2=-5

using the formula

(y-y1)/(x-x1)=(y2-y1)/(x2-x1)

(y-7)/(x-(-2))=(-5-7)/(2-(-2))

(y-7)/(x+2)=(-5-7)/(2+2)

(y-7)/(x+2)=(-12)/4

(y-7)/(x+2)=-3

cross multiply

y-7=-3(x+2)

y-7=-3x-6

y=-3x-6+7

y=-3x+1

Answer:240 square feet

Step-by-step explanation:length of rectangle DMLG

= DM = LG = (25 + 5) = 30 feet

width of rectangle DMLG

= ML = 8 feet

area of rectangle DMLG

= length × width

= 30 × 8

= 240 square feet

Answer: length of rectangle DMLG

= DM = LG = (25 + 5) = 30 feet

width of rectangle DMLG

= ML = 8 feet

area of rectangle DMLG

= length × width

= 30 × 8

= 240 square feet

wish that helped :)

Step-by-step explanation:

The pattern that this system detects is a four-digit number that is divisible by 3.

1. The system starts by taking an input of a four-digit number.

2. It then checks if the last digit of the input number is divisible by 3.

3. If it is, the system continues to check if the sum of the remaining three digits is divisible by 3.

4. If this turns out to be true, the system will output a signal indicating that the input number is divisible by 3.

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Answer:

This is what I got, hope u get it right

Step-by-step explanation:

The Giant Hummingbird beats its wings 10-15 times per second. The fastest recorded rate is about 80 beats per second on an Amethyst Wood- star Hummingbird.

85 is the answer........

Answer:

A = $3,198.17

A = P + I where

P (principal) = $1,600.00

I (interest) = $1,598.17

Step-by-step explanation:

First, convert R as a percent to r as a decimal

r = R/100

r = 7.72/100

r = 0.0772 rate per year,

Then solve the equation for A

A = P(1 + r/n)nt

A = 1,600.00(1 + 0.0772/12)(12)(9)

A = 1,600.00(1 + 0.006433333)(108)

A = $3,198.17

Summary:

The total amount accrued, principal plus interest, with compound interest on a principal of $1,600.00 at a rate of 7.72% per year compounded 12 times per year over 9 years is $3,198.17.

The general solution of the partial differential equation is:

U(x, t) = Σ [Aₙ*sin((nπ/3)x)]*e^(-(nπ/3)²t)

The partial differential equation (PDE) is given as:

Uxx = (1/2)Ut with the boundary and initial conditions as 0< X <3 with U(0,t) = U(3, t)=0, U(0, t) = 5sin(4πx)

Assume that the solution can be written as a product of two functions:

U(x, t) = X(x)T(t)

Substituting this into the PDE, we have:

X''(x)T(t) = (1/2)X(x)T'(t)

Dividing both sides by X(x)T(t), we get:

(X''(x))/X(x) = (1/2)(T'(t))/T(t)

Since the left side only depends on x and the right side only depends on t, both sides must be equal to a constant, denoted as -λ²:

(X''(x))/X(x) = -λ²

(1/2)(T'(t))/T(t) = -λ²

Simplifying the second equation, we have:

T'(t)/T(t) = -2λ²

Solving the second equation, we find:

T(t) = Ce^(-2λ²t)

Applying the boundary condition U(0, t) = 0, we have:

U(0, t) = X(0)T(t) = 0

Since T(t) ≠ 0, we must have X(0) = 0.

Applying the boundary condition U(3, t) = 0, we have:

U(3, t) = X(3)T(t) = 0

Again, since T(t) ≠ 0, we must have X(3) = 0.

Therefore, we can conclude that X(x) must satisfy the following boundary value problem:

X''(x)/X(x) = -λ²

X(0) = 0

X(3) = 0

The general solution to this ordinary differential equation is given by:

X(x) = Asin(λx) + Bcos(λx)

Applying the initial condition U(x, 0) = 5*sin(4πx), we have:

U(x, 0) = X(x)T(0) = X(x)C

Comparing this with the given initial condition, we can conclude that T(0) = C = 5.

Therefore, the complete solution for U(x, t) is given by:

U(x, t) = Σ [Aₙsin(λₙx) + Bₙcos(λₙx)]*e^(-2(λₙ)²t)

where:

Σ represents the summation over all values of n

λₙ are the eigenvalues obtained from solving the boundary value problem for X(x).

To find the eigenvalues λₙ, we substitute the boundary conditions into the general solution for X(x):

X(0) = 0: Aₙsin(0) + Bₙcos(0) = 0

X(3) = 0: Aₙsin(3λₙ) + Bₙcos(3λₙ) = 0

From the first equation, we have Bₙ = 0.

From the second equation, we have Aₙ*sin(3λₙ) = 0. Since Aₙ ≠ 0, we must have sin(3λₙ) = 0.

This implies that 3λₙ = nπ, where n is an integer.

Therefore, λₙ = (nπ)/3.

Substituting the eigenvalues into the general solution, we have:

U(x, t) = Σ [Aₙ*sin((nπ/3)x)]*e^(-(nπ/3)²t)

where Aₙ are the coefficients that can be determined from the initial condition.

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Answer:

10 - 2x

Step-by-step explanation:

3x + 8 + - 5x + 2​

- 2x + 8 + 2

10 - 2x

Answer:

-2x+10

Step-by-step explanation:

Combine the variables

-5x+3x= -2x

Combine the other numbers

 8+2= 10

-2x+10

The phrase "3 over 1" would be used to describe the proportion of vehicles to trains. The (C) option is that.

A ratio in mathematics shows how many times one quantity is present in another.

For instance, if a dish of fruit's fully oranges and six lemons, the ratio of oranges and lemons is eight to six.

This ratio of oranges to the overall amount of fruit is 8:14, and the ratio of lemons and oranges is 6:8.

Two quantities are compared to form a ratio.

An equality of two ratios is a percentage.

So, the following are some of the car models that Alex has collected:

There are 8 airplanes.

There are 4 trains in all.

There are 12 vehicles.

Consequently, the car-to-train ratio is 12:4.

This is further simplified to its most basic form:

= 12:4

= 3:1

Therefore, the phrase "3 over 1" would be used to describe the proportion of vehicles to trains. The (C) option is that.

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Complete question:

Alex has a collection of vehicle models. He built 8 model airplanes, 4 model trains, and 12 model cars. Write a ratio to represent the ratio of cars to trains.

A. 12:24 FAST HELP

B. 1:3

C. 3 over 1

D> 4 to 12

Answer:

CP is perpendicular to AB

The function that would match the graph shown below is given as follows:

y = -5(x³ + 7x² + 8x - 16).

The function is defined using the Factor Theorem, as we have the x-intercepts of the graph, hence we can write the function as a product of it's linear factors.

Considering the x-intercepts, the roots are given as follows:

Hence, considering the leading coefficient a, the function is defined as follows:

y = a(x + 4)²(x - 1)

y = a(x² + 8x + 16)(x - 1)

y = a(x³ + 7x² + 8x - 16).

When x = 0, y = 80, hence the leading coefficient a is obtained as follows:

-16a = 80

a = -5.

Hence the function is:

y = -5(x³ + 7x² + 8x - 16).

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The correct answer is 571 quotient and 1 is remainder.We can solve easily by partial quotients.

Partial quotients division is a deviation from the standard method. The divisor is multiplied with a number and the multiple obtained is deducted from the dividend. This multiple of the divisor is as close as possible to the dividend, that is less than or equal to the dividend.

Partial quotient division provides natural differentiation because we can have students solve at a level they are comfortable with and then we can challenge them to find a more efficient way. And this means using fewer steps and solve easily.

Now we solve

first 9 multiply with 500 so we get 4500. 5140-4500=640

then 9 multiply with 70 so we get 630. 640-630=10

then 9 multiply with 1 so we get 9.   10-9=1

Hence       500+70+1=571

And our remainder is 1.

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Answer:It B and C

Step-by-step explanation:

Answer:

\(x = 12.5\) degrees

Step-by-step explanation:

Since lines a and b are parallel, we have that angles 3 and 5 are congruent, that is, they have the same measure.

We have that:

\(m<3 = 10x\)

\(m<5 = 12x - 25\)

Value of x:

Since they are congruent:

\(m<3 = m<5\)

\(10x = 12x - 25\)

\(-2x = -25\)

\(2x = 25\)

\(x = \frac{25}{2}\)

\(x = 12.5\) degrees

The value of 3¾ft in yards would be = 1 6/25 yard

A mixed number is the type of number that is made up of three parts such as the whole number, a numerator and a denominator.

To convert to yards;

1 ft = 0.33 yard

3¾ = X yards

make x yards the subject of formula;

X yards = 3¾ × 0.33

X yards = 3.75×0.33

X yards = 1.24 yards

X yards in mixed number= 124/100 = 31/25 = 1 6/25 yard.

Note that the final value which is 124/100 is reduce to the lower figure by dividing through with 4 to arrive at the mixed number 1⁶/25

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Answer:

Step-by-step explanation:

a) Let's denote the number of coffees sold as 'x' and the number of cappuccinos sold as 'y'.

The equation that represents the given information is:

2.50x + 3.75y = 222.50

b) To solve the equation, we need to find the values of 'x' and 'y' that satisfy the equation.

Since we have two variables and only one equation, we cannot determine the exact values of 'x' and 'y' independently. However, we can find possible combinations that satisfy the equation.

Let's proceed by assuming values for one of the variables and solving for the other. For example, let's assume 'x' is 40 (number of coffees):

2.50(40) + 3.75y = 222.50

100 + 3.75y = 222.50

3.75y = 222.50 - 100

3.75y = 122.50

y = 122.50 / 3.75

y ≈ 32.67

In this case, assuming 40 coffees were sold, we get approximately 32.67 cappuccinos.

We can also assume different values for 'x' and solve for 'y' to find other possible combinations. However, keep in mind that the number of drinks sold should be a whole number since it cannot be fractional.

Therefore, one possible combination could be around 40 coffees and 33 cappuccinos sold.

Answer:

use what u learn from the teacher

Answer:

55 degrees

Step-by-step explanation:

Answer:

Step-by-step explanation:

55/66

Given the angle bisectors of ΔPQR are PZ, QZ, and RZ, note that:

In geometry, an angle bisector is a line that divides an angle into two equal angles. A bisector is anything that divides a form or item into two equal pieces.

An angle bisector is a ray that divides an angle into two equal portions of the same measurement.

The computation is explained as follows;

Since m∠YRZ = 14° (given)

Note that on the bases of the Angle Bisector theorem,

m∠YRZ = m∠XRZ = 1/2 m∠YRX

Since

∠YRZ = 14°

m∠YRX = 2 * 14°  = 28°

Recall that ∠WPY is 46°, and m∠YRX = 28°

Thus, m∠PQR = 180 - (28 + 46)

∠PQR = 106°

Given the above, m∠XQZ = ∠PQR * 1/2

∠XQZ  =  106/2

∠XQZ  =  53°

Since Z is the center of the ΔPQR, Z is equidistant from the three edges so:

WZ = YZ = XZ

WZ = 14,

Thus, XZ = 14

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The number of square feet needed to cover the hole is 44ft²

To find this, we need to find the area of the green region and subtract the little square that it has inside.

Remember that for a rectangle, the area is the product between the dimensions, then the area of the green region is:

A = 12ft*4ft = 48ft²

The little square has an area:

a = 2ft*2ft = 4ft²

Then the area needed is:

area = 48ft² - 4ft² = 44ft²

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Answer:

41 meters

Step-by-step explanation:

\(\frac{31}{64}\) = \(\frac{19.8}{x}\)

31x = (19.8)(64)

31x = 1267.2  Divide both sides by 31 and round

x = 41