IXL problem please help



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Answer:

12 x 12 = 144, 12 x 13 = 156

Step-by-step explanation:

Answer: y = (x - 1)² - 3

Step-by-step explanation:

y = (1-1)²-3
y=0-3
y=-3

Answer:

250 and 250.1

Answer:

250.1

Step-by-step explanation:

5002 divided by 20 equals 250.1

Answer: Coupon B is more profitable

Answer:

there all cute i cant see the first one tho hella blurry she seems cute tho

Step-by-step explanation:

Answer:

$720.22

Step-by-step explanation:

$67.66 + $23.67 + $98.43 + $654.23 = $843.99

$55.28 + $34.11 + 34.38 = $123.77

$843.99 - $123.77 = $720.22

Answer:

406÷6

Step-by-step explanation:

do Long division and you will get it

Answer:

50 students in each bus

Step-by-step explanation:

  number of students in travel cars = 6

∴ total number of students in buses = 406 - 6 = 400

  number of students in each bus = 400 ÷ 8

                                                        = 50

Hope this helps!

The final parametric equations describing the plane's motion are:

x(t) = 0 + (425 km - 0) * t = 425t

y(t) = 0 + (736.6 km - 0) * t = 736.6t

z(t) = 1650 meters

where t varies from 0 to 1.36 hours.

Let's set up a coordinate system with the origin at sea level beneath Denver.

We'll use the x-axis to point east, the y-axis to point north, and the z-axis to point upward.

The plane starts directly above Denver at an altitude of 1650 meters.

We can represent this as the initial point P₀(0, 0, 1650).

The plane then flies to Bismark, which is about 850 km in the direction 60° north of east from Denver.

Let's represent the position of Bismark as the point P₁(x, y, z), where x and y are the horizontal displacements (east and north, respectively), and z is the altitude above sea level.

Since the plane flies at a constant height of 7500 meters above the line joining Denver and Bismark, the altitude z remains constant at 7500 meters.

Let's calculate the horizontal displacements x and y:

The eastward displacement x can be found using the cosine of the angle (60°) and the distance to Bismark (850 km):

x = 850 km * cos(60°) ≈ 425 km

The northward displacement y can be found using the sine of the angle (60°) and the distance to Bismark (850 km):

y = 850 km * sin(60°) ≈ 736.6 km

Now, we can write the parametric equations for the plane's motion:

x(t) = x₀ + (x₁ - x₀) * t

y(t) = y₀ + (y₁ - y₀) * t

z(t) = z

where:

x₀ = 0 (initial x-coordinate at Denver)

y₀ = 0 (initial y-coordinate at Denver)

z = 1650 meters (altitude above sea level at Denver)

x₁ = 425 km (x-coordinate at Bismark)

y₁ = 736.6 km (y-coordinate at Bismark)

The parameter t represents the time in hours.

The plane's motion is constant, so t will vary from 0 to the time it takes to travel from Denver to Bismark at a speed of 625 km/hour.

To find the time it takes, we can use the distance formula:

Distance = Speed * Time

850 km = 625 km/hour * Time

Time = 850 km / 625 km/hour ≈ 1.36 hours

A plane directly above Denver, Colorado, (altitude 1650 meters) flies to Bismark, North Dakota (altitude 550 meters).

It travels at 625 km/hour at a constant height of 7500 meters above the line joining Denver and Bismark. Bismark is about 850 km in the direction 60∘ north of east from Denver.

Assume the origin is at sea level beneath Denver, that the x-axis points east and the y-axis points north, and that the earth is flat. Measure distances in kilometers and time in hours.

So, the time it takes for the plane to travel from Denver to Bismark is approximately 1.36 hours.

The final parametric equations describing the plane's motion are:

x(t) = 0 + (425 km - 0) * t = 425t

y(t) = 0 + (736.6 km - 0) * t = 736.6t

z(t) = 1650 meters

where t varies from 0 to 1.36 hours.

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Answer:

Ans : =x

brainliest plsssssss

Step-by-step explanation:

Let's simplify step-by-step.

−2(x+8)+1(3x+16)

Distribute:

=(−2)(x)+(−2)(8)+(1)(3x)+(1)(16)

=−2x+−16+3x+16

Combine Like Terms:

=−2x+−16+3x+16

=(−2x+3x)+(−16+16)

=x

===========================================================

Reason:

This graph passes the vertical line test, so it is a function.

The vertical line test is where we try to pass a single vertical line through more than one point on the curve. If such a thing is possible, then we say the curve fails the vertical line test and it's not a function.

Graph D for instance can have a vertical line through x = 1 and intersect the curve at (1,4) and (1,-4) simultaneously. The input x = 1 leads to multiple outputs (y = 4 and y = -4). Graph D fails the vertical line test for this very reason, and it is not a function. Graphs A and B are similar stories. Any vertical line itself is automatically not a function.

To have a function, any x input in the domain must lead to exactly one and only one y output in the range.

---------

Notice with graph C it is impossible to have a single vertical line intersect more than one point on the curve. So this is why graph C passes the vertical line test. Each input leads to exactly one output.

Answer:

CD < DB < BC.

Step-by-step explanation:

To evaluate the sides, we have to compare the angles.

The largest angle is opposite to the largest side.

The middle-sized angle is opposite to the middle-sized side.

The smallest angle is opposite to the smallest side.

So, to find the missing angle, we have to know that the sum of the intern angles of a tringle is 180°.

Let x be the missing angle.

Then, x + 63 + 75 = 180°

x = 180 - 75 - 63

x = 42°

Then, we can compare the sides.

42° is the smallest angle. CD is the opposite side to 42°. Then, CD is the smallest side.

63° is the middle-sized angle. DB is the opposite side to 63°. Then, DB is the middle-sized side.

75° is the largest angle. BC is the opposite side to 75°. Then, BC is the largest side.

So,

CD < DB < BC.

Answer:

1/2=10

Step-by-step explanation:

it depends upon the area of the triwngle

Answer:

(x+2)² - 11

Step-by-step explanation:

Regroup terms

x² + 4x - 7

(x² + 4x) - 7

Complete the square

 coefficient of x term: 4

 divide coefficient in half: 2

 square it: 2²

 use 2² to complete the square:

(x² + 4x) - 7 = (x² + 4x + 2²) - 2² - 7 = (x+2)² - 11

Answer:

I don't know.

Step-by-step explanation:

Answer:

The lengths of the sides are 12cm, 28cm and 36cm.

Step-by-step explanation:

Let the smallest side be 4x, the middle side be 7x and the largest side be 9x.

Smallest side + middle side + largest side = 60cm

4x + 7x + 9x = 60

20x = 60

x = 60 ÷ 20

x = 3

Smallest side (4x) = 3 × 4

                             = 12

Middle side (7x)  = 7 × 4

                           = 28

Largest side (9x) = 9 × 4

                            = 36

Answer:

half flyfkycoyfkgflycj hrxhrhddzg

Answer:

36 miles

Step-by-step explanation:

Since there are 60 minutes in a hour, you can see that 20 minutes is a third of that time. To find the answer, you multiply the values by 3 to equal on hour. 20x3 = 60 and 12x3 = 36, meaning he drove 36 miles in a hour.

Answer:

3.4

Explanation and Check part below

Hope this helps :)

Step-by-step explanation:

Steps

1. Isolate the variable subtract 4.25 since it's positive.

4.25 - 1.25x = 0

- 4.25 - 4.25

- 1.25x = - 4.25

2. Divide by - 1.25 in both sides of equation.

- 1.25x = - 4.25

--------- ---------- <------- fraction bar/ divide

-1.25 -1.25

x = 3.4

Check:

4.25 - 1.25 (3.4) = 0

4.25 - 4.25 = 0

0 = 0

True statement.

Answer:

Step-by-step explanation:

A ∩ (B ∪ C) =  {a, b, d, e} ∩ {a, b, d, g, h, j} = {a, b, d}

The height of the square pyramid with base area 225 cm² and volume 300cm³ is equal to 4 centimeters.

Area of the base of square pyramid = 225 centimeters squared

Volume of the square pyramid = 300 centimeters cubed

Using the formula for the volume of a square pyramid,

V = (1/3) × B × h

where V is the volume,

B is the area of the base,

and h is the height of the pyramid.

Substitute this value into the formula we have,

⇒ 300 = (1/3) × 225 × h

Simplifying the equation , we get,

⇒ 900 = 225 × h

Dividing both sides by 225, we get,

⇒ h = 4

Therefore, the height of the square pyramid is 4 centimeters.

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Answer: 12340

Step-by-step explanation:

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Siendo nxnsnen

Ncnsnsns

Answer: 5.6

Step-by-step explanation: Multiply the two numbers to get the "actual value" then estimate the result to "the nearest tenths place."

Answer:

9x - 6

Hope this helps! <3

(If you need a step by step lmk)

Answer:

6x+3(x-2)

6x+3x-6

9x-6

The value of x in this problem, considering the intersecting chords, is given as follows:

x = 10.

A chord of a circle is a straight line segment that connects two points on the circle, that is, it is a line segment whose endpoints are on the circumference of a circle.

When two chords intersect each other, then the products of the measures of the segments of the chords are equal.

Hence the value of x is obtained as follows:

12x = 15 x 8

12x = 120

x = 10.

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Using a system of equations, it is found that the blend contains 0.25 pounds of the Colombian blend and 0.75 pounds of the Jamaican blend.

A system of equations is when two or more variables are related, and equations are built to find the values of each variable.

In this problem, the variables are given by:

A customer pays $18.85 for 3 pounds of a blend, hence:

x + y = 3 -> y = 3 - x

5x + 6.4y = 18.85

Since y = 3 - x:

5x + 6.4(3 - x) = 18.85

1.4x = 0.35

x = 0.35/1.4

x = 0.25

y = 3 - x = 3 - 0.25 = 2.75.

0.25 pounds of the Colombian blend and 0.75 pounds of the Jamaican blend.

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Answer:

Step-by-step explanation:

Like terms have same variables with same exponents

3x² + 12x + 11 +14x² + 8x + 5

= 3x² + 14x² +    12x + 8x   + 11 + 5

= 17x² + 20x + 16

Answer:

S= 1.301

Step-by-step explanation:

5.313-4.012=S

Answer:

slope change to 1/10 or 0.1 and horizontal shift of positive 6

Step-by-step explanation: