Help please! Will give brainliest!!!!!!!!!!!!!!

[tex]~~~~~~~a(2y+3z) = d(2x+3y)\\\\\implies 2ay+3az= 2dx+3dy\\\\\implies 2ay -3dy = 2dx -3az\\\\\implies (2a-3d)y = 2dx-3az\\\\\implies y = \dfrac{2dx-3az}{2a-3d}~~~~~~~~~~~~;[2a-3d \neq 0][/tex]

Answer:

B

Step-by-step explanation:

Answer:

Step-by-step explanation:

HOPE ITS HELP

Answer:

x = -7 and x = 5

Step-by-step explanation:

First, make the problem easier by taking out the common factor (6).

6x² - 12x - 210 -----> 6(x² - 2x - 35)

What two numbers multiply to -35 and add to -2? These two numbers are -7 and 5. You can now write the factored form of the expression.

6(x² - 2x - 35) -----> 6(x - 7)(x + 5)

Finally, find the x's by making each term with x equal to zero.

x + 7 = 0 -----> x = -7

x - 5 = 0 ----->  x = 5

The x's are x = -7 and x = 5

Answer:

Sally is 27

Jenny is 18

Step-by-step explanation:

using algebra:

x+(x-9)= 45

x+x-9

2x-9=45

2x-9+9=45+9

2x=54

54÷2=27

Sally = 27

27-9 = 18

Jenny = 18

This should be it!

hope this helps :)

The cartesian form of planes perpendicular to the z-axis have in spherical coordinates is z = r cosФ.

Spherical coordinates, also known as spherical coordinates, are a type of curvilinear coordinate system that is useful for defining locations on a sphere or spheroid.

The conversion of cartesian coordinate to spherical coordinate will be

x = r cosθ sinФ

y = r sinθ sinФ

z = r cosФ

The cartesian form of planes perpendicular to the z-axis have in spherical coordinates is z = r cosФ.

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Answer: 11.42

Step-by-step explanation: Pythagorean Theorem

Answer:

11.42

Step-by-step explanation:

3,4,5 and 8,3,sqrt(55)

around 11.42

Answer:

6minutes

Step-by-step explanation:

There is 60minutes in an hour sooo using an online calculator 10% of 60minutes is 6minutes
10% because when you add up everything other than research you get 90%. 90% for everything other than research so 10% for research. They then want it in minutes and they let us know that she spent an hour on her iphone so as stated that's how it works


I dont mind brainlest

Answer:

8.4 x 10

Step-by-step explanation:

Scientific notation

Answer:

8.4 x 10^1

You do not have to use the 1st power that is just the official way of writing it  :)

Step-by-step explanation:

scientific notations

Answer:

18-3×6+4=0

18-18+4=0

0+4=4

it is completely right(+) is the correct symbol

Answer:

3 vertices

Acute

Step-by-step explanation:

Question

Three polygons are still use the drop-down menus to describe the polygons use a protractor click the protractor button below

answer: 3 vertices first drop down

acute second drop down

[tex]\textit{arc's length}\\\\ s=\cfrac{\theta \pi r}{180}~~ \begin{cases} r=radius\\ \theta =\stackrel{degrees}{angle}\\[-0.5em] \hrulefill\\ r=9\\ s=9.7 \end{cases}\implies 9.7=\cfrac{\theta \pi (9)}{180}\implies 9.7=\cfrac{\theta \pi }{20} \\\\\\ 194=\theta \pi \implies \cfrac{194}{\pi }=\theta \implies 62\approx \theta[/tex]

Answer:

72 m^2

Step-by-step explanation:

0.5 x 9 x 16 = 72

hope this helps

have a good day

Answer:

B

Step-by-step explanation:

The number of ways to choose a combination of 7 objects from a group of 15 objects is 15! / (7! 8!)

The answers for the given multiplications are 100 and 2000

Significant figures are the digits of a number that are meaningful in terms of accuracy or precision.

Given that, two numbers, we need to simplify them and then round them to 1 significant figure.

1) 8.2×6.7/0.46 = 119.4347

Rounding to 1 significant figure, = 100

2) 23.4×13.9/0.18 = 1807

Rounding to 1 significant figure, = 2000

Hence, The answers for the given multiplications are 100 and 2000

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Answer:

2 miles

Step-by-step explanation:

Add the first 2 terms (2 1/6 and 1 3/6) by adding the whole term and fractional term to get 3 4/6, then subtract 1 4/6 by subtracting 1 from 3 and 4/6 from 4/6 to get 2 0/6, which is just 2.

The information that provided by the graph are median and the range. The information that cannot be gotten from the graph is the mode.

The interquartile range is 25.

The outlier would distort the value of the median and mean.

The information that can be derived from the box plot are the minimum value, maximum value, range, median, first quartile and third quartile.

The interquartile range is the difference between the first quartile and third quartile.

Interquartile range = 60 - 35  = 25

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Answer:

PART A: You cannot find the mode from the box plot. However, you can find the mean, median, and the range along with outliers.

PART B: 60-35=25 This is the interquartile range.

PART C: The outliers will cause the mean into increase.

Step-by-step explanation:

Step-by-step explanation:

the slope is always the ratio "y coordinate charge / x coordinate change" when going from one point on the line to another.

so, when going from (-2, 1) to (4, -3)

x changes by +6 (from -2 to 4).

y changes by -4 (from 1 to -3).

therefore, the slope is

-4/+6 = -4/6 = -2/3

The expected value for the given experiment is:

E = -0.5

For an experiment with the possible events {x₁, x₂, ..., xₙ}, each with the correspondent probability {p₁, p₂, ..., pₙ}, the expected value is defined as:

E = x₁*p₁ + ... + xₙ*pₙ

In this case, all the probabilities are equal to 1/6 (assuming that the dice is fair), then we have:

E = (1/6)*(1 - 2 + 3 - 4 + 5 - 6) = (1/6)*(-3) = -0.5

We conclude that the expected value for the experiment is -0.5

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Answer:

B) -0.5

Step-by-step explanation:

Answer:

100 / (22+3)

=100/25

=4

Step-by-step explanation:

Answer:

#3

Step-by-step explanation:

You can tell if a table is linear, if the slope is constant within the graph. #3 is the only option that has a constant slope. In the others, if you pick different points from that same table the slope changes. That is how you know that is not a linear function.

A linear equation is an equation in which each term has at max one degree. The table that represents a linear function is Table 3. Thus, the correct option is 3.

A linear equation is an equation in which each term has at max one degree. Linear equations in variables x and y can be written in the form

y = mx + c

Linear equation with two variables, when graphed on a cartesian plane with axes of those variables, gives a straight line.

For the table to represent a linear function, the function must have a constant slope between any two points.

For the third table, the slope between the first two points is,

[tex]m = \dfrac{(- 10 + 2)}{(2 - 1)}[/tex]

[tex]m = - 8[/tex]

The slope between the last two points is,

[tex]m = \dfrac{(- 18 + 10)}{(2 - 1)}[/tex]

[tex]m = - 8[/tex]

Hence, the table that represents a linear function is Table 3. Thus, the correct option is 3.

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Characteristics of vectors:

Moving up 5 units and then back down 5 units you would be in the original starting location.

Answer (2,-2)

You plan to construct a brick wall measuring 14.5 ft. in length, 5.5 ft. high, and 0.5 ft. in width. If a brick measures 6 in. x 4 in. x 2 in. you will need 3,240 bricks.

The volume of the cuboid is the product of the length, breadth, and height of the given prism.

Volume of cuboid = (length x width x height)

We have given that

Dimensions of a brick wall is given by

Length = 14.5 feet

Width = 0.5 feet

Height = 5.5 feet

Dimensions of a brick is given by

Length = 6 inch

Width = 4 inch

Height = 2 inch

First of all, we will convert the dimensions of a wall from feet into inches.

1 feet = 12 inch

15 feet = 12*15 inch = 180 inch

6 feet = 12*6 inch = 72 inch

We know that volume of a brick wall will be equal to the volume of 'n' bricks, so we can set an equation;

The volume of a brick wall = the volume of 'n' bricks

180 x 72 x 12 = n x 6 x 4 x 2

155520 = n x 48

n = 3240

Therefore, you will need 3,240 bricks.

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Let x be the total number of student tickets sold.

Then, x - 25 is the number of adult tickets sold.

660 = 3x + 6(x - 25)

660 = 3x + 6x - 150

9x = 810

x = 90

Thus, 90 student tickets were sold.

The degree of the polynomial will be equal to 3 for the given data.

polynomial an expression of more than two algebraic terms, especially the sum of several terms that contain different powers of the same variable(s).

The highest exponent of a polynomial function is the degree, which specifies the maximum number of solutions a function can have and the maximum number of times a function will cross the x-axis when graphed.

So in the given function the highest power of the variable is three so the

degree of the polynomial will be equal to 3 for the given data.

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Ratio of mild wings to hot wings

=3:2

3+2=5

mild wings = 90/5×3

=54

hot wings =90/5×2

=36

Answer:

3x^2 - x - 2 (simplified)

3x^2 - x = 2 (standard form)

Step-by-step explanation:

Answer:

[tex]3x^2 - x - 2[/tex]

Step-by-step explanation:

Step 1:  Combine like terms

[tex](2x^2- 4x + 5) + (x^2 + 3x - 7)[/tex]

[tex]2x^2 - 4x + 5 + x^2 + 3x - 7[/tex]

[tex](2x^2 + x^2) + (-4x + 3x) + (5 - 7)[/tex]

[tex]3x^2 - x - 2[/tex]

Answer:  [tex]3x^2 - x - 2[/tex]

Higher Order Thinking There are points on a grid at (0, 0) and (3, 0).

a. What is a possible coordinate of the third vertex if the triangle has

a perimeter of 11 units? Explain.

b. Is there another point that could be the third vertex? Explain.

par poib

signe

Answer:

  a.  57.2

  b.  scalene

Step-by-step explanation:

The lengths of the sides can be found from the coordinates of the vertices using the distance formula. The perimeter of the triangle is the sum of the side lengths.

__

The distance formula is ...

  d = √((x2 -x1)² +(y2 -y1)²)

The length of EF is ...

  d = √((24 -28)² +(27 -24)²) = √(16 +9) = √25 = 5

The length of FG is ...

  d = √((0 -24)² +(24 -27)²) = √(576 +9) = √585 ≈ 24.2

The points E and G lie on the same horizontal line, so the distance between them is the difference of their x-coordinates:

  d = 28 -0 = 28 . . . . length of EG

The perimeter is the sum of side lengths:

  P = EF +FG +GE

  P = 5 +24.2 +28 = 57.2

The perimeter of the figure is about 57.2 units.

__

The three sides have three different lengths. This makes the triangle a scalene triangle.

Answer:

25 ÷ 5 + 7 - (4 × 3)

First Brackets :

4 x 3

= 12

Now division :

25 ÷ 5

= 5

So now this is our equation :

5 + 7 -12

Work From left to right:

5 + 7

= 12

12 - 12

==> 0

Hope it helps :))

Answer:

0

Step-by-step explanation:

1. Calculate within the parenthesis:

25 ÷ 5 + 7 - 12

2. Divide:

5 + 7 - 12

3. Add and subtract:

12 - 12

= 0

hope this helps!