40 Which scatterplot does NOT suggest a linear relationship between x and y?
9
9
8
0
2
7
9
6
H
5
4
5
4
3
2
2
1
1
1 2 3 4 5 6
6
0
0
1 2 3 4 5 6 7 8 9
6
.
2
3
D
5
5
4
4
3
2
2
1
1
0
0
3 4 5 6 7 9
1 2 3 4 5 6 7 8 9
1 2

So I have 5 and 3 notes each

You need to use simultaneous equations to solve this problem since there are 2 variables.

50x + 100y = 550 (value of the notes x the number of each note)

x + y = 8 (the number of each note added).

Multiply the second equation by 50 so that it the x variables are the same in both equations. Thus, 50x + 50y = 400.

Subtract 50x + 50y = 400 from 50x + 100y = 550.

The subtraction results in 50y = 150.

Divide by 50. y = 3, so x must equal 5.

So I have 5 and 3 notes each

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The nature of roots of quadratic equation 5x² = 4x - 1 is imaginary roots.

The standard form of a quadratic equation is:

ax² + bx + c = 0

The discriminant is defined as:

D = b² - 4ac

Using  the value of discriminant, we can determine the nature of roots of a quadratic equation.

If:

D > 0, the quadratic equation has two distinct real roots or the roots are real and distinct.

D = 0, the quadratic equation has 1 real equal roots or the roots are unique

D < 0, the quadratic equation has complex conjugate roots or the roots are imaginary.

In this case, the quadratic equation is:

5x² = 4x - 1

transform it into the standard form:

5x² - 4x + 1 = 0

Calculate the discriminant:

D = (-4)²  - 4 (5)(1)

  = 16 - 20 = -4

Since D < 0, the roots are imaginary.

Your question is incomplete, but most probably your question was:

What is the nature of roots of quadratic equation 5x² = 4x - 1?

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Answer:

you answer would be F: Point W

In a double number line diagram, equal ratios are represented by two parallel number lines. On both number lines, the tick marks are in the same places. Though the other numbers are frequently varied, the tick marks labeled with 0 always line up.

According to question:-

How much more garlic powder than salt is in the triple batch?

Answer: 6 teaspoons of garlic powder - 15 teaspoons of salt = -9 teaspoons. So there is 9 teaspoons less garlic powder than salt in the triple batch.

How much spice mix is in the triple batch?

Answer: 6 teaspoons of garlic powder + 15 teaspoons of salt = 21 teaspoons of spice mix.

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Based on the information provided, Qamar will have enough lacquer to cover the floor and 24 square feet will be left over.

Based on the information given, Qamar has 600 square feet.

To calculate the total lacquer Qamar needs, it is necessary to calculate the area of the floor that has to be covered. In the case of a parallelogram, the area can be calculated using the following formula:

Now, if the total of material available is 600 feet, it can be concluded there is enough material to cover this floor. Let's calculate the lacquer left over:

Note: This question is incomplete; here is the missing information:

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If any two angles of a triangle are equal to any two angles of another triangle, then the two triangles are similar to each other.

Consider two triangles ABC and XYZ, if ∠ A = ∠X and ∠C = ∠Z then

ΔABC ~ΔXYZ.

If, two triangles ΔABC and ΔXYZ are similar only if,

i)∠A =∠X, ∠B =∠Y and ∠C=∠Z

ii)AB/XY=BC/YZ=AC/XZ

"AAA" means "Angle, Angle, Angle" when we know all three angles of a triangle, but no sides.

If two triangles have their corresponding angles equal if and only if their corresponding sides are proportional.

An AAA triangle is a triangle where only the three angles are defined:

α + β + γ = 180°

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Answer:

its the first answer choice

Step-by-step explanation:

The distance of the boat is 191.2 miles, 12.8° and N12.8E from the original location.

To calculate the distance, direction angle, and bearing of the boat from its original location, we will need to use trigonometry to determine the final position of the boat.

a) The distance traveled in the eastward direction is 130 miles. Then, using the bearing of N38E, we can calculate the northward and eastward distances traveled in the second leg of the journey. The bearing of N38E can be thought of as an angle of 38 degrees measured clockwise from due east.

Using trigonometry to calculate the northward distance traveled, we have,

(72 miles) * (sin 38°)

= 36 miles

And the eastward distance traveled is (72 miles) * (cos 38°)

= 59.04 miles.

The final position of the boat is at a distance can be calculated by:

130 miles east + 59.04 miles east

= 189.04 miles east and 36 miles north from the original location.

b) To find the distance from the original location, we use the Pythagorean theorem,

d =  [tex]\sqrt{189.04^{2} +36^{2} }[/tex]

d = 191.2 miles

To find the direction angle, we use arctan(north/east) = arctan(36/189.04) = 12.8°

Bearing is the direction angle measured clockwise from north. So, bearing = 12.8°

Hence, the final position of the boat is 191.2 miles, 12.8°, and N12.8E from the original location.

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Answer:

i depends on what the equation is.

Area of the convex polygon whose vertices are the centroids of these 7 triangles is 184.

What is a convex polygon?

A polygon that forms the edge of a convex set is said to be convex polygon. This indicates that the union of the interior and the boundary of the polygon has the line segment connecting two points of the polygon.

Given,

 AB = CD = EF = GH = 10

 BC = DE = FG = HA = 11

 Triangles of side length 6,8,10 is cut from corners 23×27 rectangle.

Using the above information, we marked the position of A,B,C,D,E,F,G,H and J, taking the upper left corner of rectangle as origin.

The centroid of a triangle can be found using the formula,

 Centroid = [tex](\frac{x_{1} + x_{2}+x_{3}}{3} , \frac{y_{1} +y_{2}+y_{3}}{3})[/tex]

For ΔJAB,

[tex]C_{1}[/tex] = (8/3 , -35/6)

For ΔJBC,

[tex]C_{2}[/tex] = ( 9 , -23/6)

For ΔJCD,

[tex]C_{3}[/tex] = ( 46/3, -35/6)

For ΔJDE,

[tex]C_{4}[/tex] = ( 18 , -23/2)

Area of convex polygon = [tex]\frac{1}{2} [x_{1} y_{2} + x_{2}y_{3}+.........+x_{n}y_{1}] - [y_{1}x_{2}+y_{2}x_{3}+......+y_{n}x_{1}][/tex]

From figure we find the area of C₁C₂C₃C₄C₈, where C₈ = (8/3 , -23/2)

Area =

[tex]\frac{1}{2} [8/3 (-23/6 )+ 9(-35/6)+46/3(-23/2)+18(-23/2)+8/3(-35/6)] - [(-35/9)9+(-23/6)46/3+(-35/6)18+(-23/2)8/3+(-23/2)8/3][/tex]

= 184 / 2

Therefore total area of convex polygon = 2 × 184/2 = 184 sq. units

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SAS congruence theorem should be used.

Option (B) is correct.

What is the SAS congruence theorem?

In Euclidean geometry, the SAS congruence theorem states that if two triangles have two sides of one triangle congruent (equal in length) to two sides of the other triangle, and the included angle is congruent, then the triangles are congruent. This theorem is often abbreviated as SAS, and is used in combination with other congruence theorems, such as ASA and SSS, to prove that triangles are congruent.

In the given picture, we can say both triangles has the same side of length 7 and along with it, one more side is of equal length.

and both triangles are having the right-angle,

so we can say that we can prove these triangles congruent by using SAS congruence theorem.

Hence, SAS congruence theorem should be used.

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Answer:

400

Step-by-step explanation:

Car A costs 80d + 0.25m, where d is days and m is miles. Car B costs 100d + 0.10m. If you plug in 3 for d and make the equations equal, you get 240 + 0.25m = 300 + 0.10m. Combining like terms gives you 0.15m = 60, and dividing gives you m = 400.

Using the inequality concept, the expression which models the maximum number of days in which she can rent the car is 80x + 15 ≤ 300

The inequality which represents the number of days Can be expressed thus :

(Charge per day × number of days) + (charge per mile × number of miles) ≤ 300

Hence, the required inequality expression is 80x + 15 ≤ 300

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For Trigonometric functions to work we need a hypotenuse, which we can only get in right triangles.

What are Trigonometric functions?

The trigonometric functions in mathematics are real functions that connect the right-angled triangle's angle to the ratios of its two side lengths. They are extensively employed in all fields of geometry-related study, including geodesy, solid mechanics, celestial mechanics, and many others.

Here,

We have to find out why trigonometric ratios are used only for right triangles.

We concluded that when we are dealing with triangles other than right triangles, the solution is to draw a perpendicular line to create right triangles. For Trigonometric functions to work we need a hypotenuse, which we can only get in right triangles.

Hence, for Trigonometric functions to work we need a hypotenuse, which we can only get in right triangles.

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The inequality to discover the values of x for which the rectangle's perimeter is under 112 is x<  26.

An inequality in mathematics is a relationship between two expressions or values that is not equal. Thus, imbalance leads to inequality. An inequality creates the link between two values that are not equal in mathematics. Egality is distinct from inequality. When two values are not equal, most commonly use the not equal symbol (). Different inequalities are used to contrast values, no matter how small or large. Many simple inequalities can be resolved by modifying the two sides until the variables are all that remain. But a number of things contribute to inequality: Negative values on both sides are divided or added. Trade off the left and right.

given

perimeter of a rectangle = length + length + width + width

length + length + width + width = perimeter of a rectangle

(x +4) + (x+4) + x + x < 112

x + 4 + x + 4 + x + x < 112

4x + 8 < 112

4x < 104

x < 26

So ,The inequality to discover the values of x for which the rectangle's perimeter is under 112 is x<  26.

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Answer:

Min:7

Q1:11

Med:13

Q3:14

Max:17

Step-by-step explanation:

Hope the picture helps. :)

Answer:

Step-by-step explanation:

the value of the 4 in 6.14 is 0.04.

this is because the 4, or in this case 0.04

is in the hundredths place. So it is

suppose to have 0, where the 6 goes (also

the ones or units) The decimal point, another 0

where the 1 goes, ( the tenths) and finally back

to the 4. (Like I said, it’s the hundredths place)

so there you have it. Your answer will be 0.04

The distance of the ball thrown is 67 ft. approx.

In mathematics, trigonometric functions are real functions that relate an angle of a right-angled triangle to ratios of two side lengths. The six trigonometric functions are Sine, Cosine, Tangent, Secant, Cosecant, and Cotangent.

Given here θ=63 and length of the field as 60 and let d be the distance

∴ Cos (180-63-90)=60/d

                  d        = 60/cos(27)

                   d       = 67 (approx)

Hence, The distance of the ball thrown is 67 ft. approx.

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Answer:

A.) weak positive correlation

The person above just wanted to steal points.

Step-by-step explanation:

Answer:

The correct answer is a weak positive correlation

or

A

Step-by-step explanation:

Fencing that Luke and Seth did each buy is 72 feet

Using the information given, you can set up and solve the system of equations. Let x be the length of Seth's garden.

Seth's garden is square, so it has four times the perimeter.

The perimeter of Luke's garden is a rectangle of length x + 3 feet and width x/2 feet, so 2(x + 3) + 2(x/2).

We also know that Luke and Seth should buy the same amount of fences. So:

4x = 2(x + 3) + 2(x/2)

Solving this equation for x gives x = 6 feet.

So Seth's yardage is 6 feet and Luke's yardage is 9 feet.

So the fence required for Seth's garden is 46 = 24 feet

and the fence required for Luke's garden is 2(9) + 2(9/2) = 29 + 2*4.5 = 36 + 9 = 45 It's feet.

So the total fencing required is 24 + 45 = 72 feet.

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Answer:

?  We don't see any graphs to choose from

Step-by-step explanation:

[tex]y>\frac{1}{2}x-1[/tex]  Graph a dotted line (to show it's not included) with y-intercept 1 and slope 1/2.  Test the origin (0, 0) in the inequality:

[tex]0 > \frac{1}{2}0 - 1 = -1[/tex]  This is true, so shade the side of the line that the origin is on (above the line).

Next inequality...

[tex]y \le x+1[/tex]  Graph a solid line with y=intercept 1 and slope 1.  Test the origin.

[tex]0 \le 0+1=1[/tex]  True! Shade the side of the line the origin is on (below the line).  See image2, attached.

[tex]y>-2x-1[/tex]  Graph a dotted line with y-intercept -1 and slope -2.  Test the origin (0, 0).

[tex]0>-2(0)-1=-1[/tex]  True, so shade the side the origin is on (above the line).

The solutions are located where all the shadings intersect.  See image3.  The solutions are above the red line, above the green line and below the blue line.

The length of the leg of the right-angled triangle is (11√2) / 2. The correct option is C.

The branch of mathematics that sets up a relationship between the sides and the angles of the right-angle triangle is termed trigonometry. The trigonometric functions, also known as a circular, angle, or goniometric functions in mathematics, are real functions that link the angle of a right-angled triangle to the ratios of its two side lengths.

Given that the right angles triangle has 45-45-90 angles. The hypotenuse is 11.

The length of the leg will be,

Cos45 = Base / Hypotenuse

1 / √2 = Base / 11

Base = 11 / √2

Rationalize the numbers,

Base = 11√2 / 2

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The temperature has decreased by 4 degrees Celsius.

We have a temperature change from 3 degrees below zero at midnight to 7 degrees below zero at 2 a.m.

We have to determine how much did the temperature decrease.

A temperature of x degrees below zero means that the temperature of an area is equal to = - x degrees i.e., T = 0 - x = - x.

According to question -

Initial Temperature T(i) = 0 - 3 = - 3 degrees

Final temperature T(f) = 0 - 7 = - 7 degrees

Change in temperature ΔT = T(f) - T(i) = -7 - (-3) = -7 + 3 = - 4

Hence, the temperature has decreased by 4 degrees Celsius.

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answer:

8 people like vanilla only

hope this helped!

Answer:

8

Step-by-step explanation:

Brainliest??

When the given altitude of the triangle meet at one of the vertices of the given triangle then it represents the option 1. right angled triangle.

As given in the question,

Given is the altitude of the triangle.

Given Condition is :

Altitude of the triangle meet at one of the vertices of the triangle.

⇒ This means altitude is representing the height of the triangle.

Height is always represented by perpendicular line.

⇒One of the side having altitude forms a angle of measure 90°.

⇒Given triangle is right angled triangle.

Therefore, when the altitude of the triangle meet at one of the vertices of the given triangles it represents the option 1. right angle triangle.

The above question is incomplete, the complete question is :

If the altitudes of a triangle meet at one of the triangle’s vertices, then the triangle is

1) a right triangle

2) an acute triangle

3) an obtuse triangle

4) an equilateral triangle

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Answer:

The right solution is "1559".

Step-by-step explanation:

The given values are:

Variance,

[tex]\sigma=\sqrt{5.76}[/tex]

  [tex]=2.40[/tex]

Maximum error,

[tex]M.E=0.1[/tex]

At 90% confidence level,

[tex]\alpha=0.1[/tex]

According to the z-table, the critical value will be:

[tex]Zc=1.645[/tex]

Now,

The sample size will be:

⇒ [tex]n=(Zc\times \frac{\sigma}{E} )^2[/tex]

On substituting the values, we get

⇒    [tex]=(1.645\times \frac{2.4}{0.1} )^2[/tex]

⇒    [tex]=(1.645\times 24)^2[/tex]

⇒    [tex]=(39.48)^2[/tex]

⇒    [tex]=1558.67[/tex]

or,

⇒    [tex]=1559[/tex]

Answer:

1. The answer is 40 degrees

2. Adjacent angles are sometimes congruent.

3. UPR is vertical to TPQ

4. The answer is 132 Degrees