which coordinate pair is a solution of the linear equation below -3x+4y=19

Answer: y = 3/5x + 7

What we know:

How to solve:

By substituting the point the slope passes through into slope-intercept form, we can calculate the y-intercept (b.) From here, we can use our slope and y-intercept values to set up the final equation.

Finding the y-intercept

Set up equation                                                         y = mx + b

Substitute                                                                   4 = 3/5(-5) + b

Simplify                                                                       4 = -3 + b

Simplify                                                                     +3    +3

Solve                                                                           7 = b

Creating final equation

Set up equation                                                         y = mx + b

Substitute                                                                   y = (3/5)x + 7

Check:

If you graph this equation (a good tool to use is desmos graphing calculator,) then this equation creates a line that has a slope of 3/5 and passes through the point (-5,4)

Factoring polynomials is breaking them down to the products of other smaller polynomials. Identifying the greatest common divisor (GCF) is an important first step because it will reduce the number of factors in each term and thus make factoring easier. In addition to polynomials, it can be factored by decomposition of the intermediate term or by difference of squares. Then, the Zero Product Property can be applied to solve the equation.

Use the sum-product pattern.

Extract the common factors.

Rewrite factored

Answer:

(x+2)(x+8)

Step-by-step explanation:

two numbers that multiply to 16 and add up to 10 is 2 and 8. You just plug both numbers in this factored form (x+ n1)(x+n2). if you chech the answer by multiplying the binomials, you will find out that the answer is the original question (x^3 +10x+16).

The distance travelled by the object in meters is 65 meters.

using the formula,

s = 1 / 2 (u + v)t

where

Therefore, the distance can be found as follows;

s = 1 / 2 (6 + 20)5

s = 1 / 2 (26)5

s = 13(5)

s = 65 m

Therefore, the distance travelled by the object in meters is 65 meters.

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Answer:

D.

Step-by-step explanation:

I had the same question

The figure will have a triangle and a rectangle. The area of a triangle is 10 in² and the rectangle is 80 in². Therefore, the total area is 90 in².

This question requires your knowledge about the area of compound shapes. For solving this, you should:

The figure is composed of a triangle and a rectangle.

Therefore, you should sum the area of these geometric figures for determining the area of the irregular figure.

Area of the triangle= [tex]\frac{b*h}{2}[/tex]. The figure shows that: the base = 10 in and the height =2 in

Thus,  A_triangle=[tex]\frac{b*h}{2}=\frac{10*2}{2} =10 in^{2}[/tex]

Area of the rectangle = bh . The figure shows that:  the base = 10 in and the height =8 in

Thus,  A_rectangle=bh= 10*8=80 in²

A_total= A_triangle + A_rectangle

A_total= 10+80=90 in²

A_total= 90 in²

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Answer:

9000000001

Step-by-step explanation:

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

Answer:

6210001000

Hope This Helps!!!

Last option. The sequence that can be used to to get the figure A'B'C'D' is Reflection about the y-axis followed by a translation to the right by 1 unit.

We have an opposite orientation in this question. This based on the fact that (ABCD)' is counterclockwise. While its reflection ABCD is clockwise.

The reflection has to go over a vertical line given that (CD)' and CD are at the bottom. Hence this reflection has to go over  a vertical line.

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Answer: [tex]46^{\circ}[/tex]

Step-by-step explanation:

[tex]m\angle CDE=m\angle UDE+m\angle CDU\\\\154^{\circ}=108^{\circ}+m\anlge CDU\\\\m\angle CDU=46^{\circ}[/tex]

Answer:

There are 4 red counters

Step-by-step explanation:

1. Add the known decimals

    [tex]0.25+0.35+0.3=0.9[/tex]

2. Subtract that amount from one

      [tex]1-0.9=0.1[/tex]

3. multiply the result by 40

    [tex](40)(0.1)=4[/tex]

Hope this helps

Step-by-step explanation:

a probability is always desired cases / total cases.

from the table and given information we know :

there are 40 blue counters.

0.25 = 40/x

x being the total number of counters in the box.

x = 40 / 0.25 = 160

the sum of all probabilities must be 1 (the always true probability), as there are only counters in the box, and one of the 4 colors is always the result.

so,

1 = 0.25 + 0.35 + 0.3 + red-probability

1 = 0.9 + red-probability

red-probability = 1 - 0.9 = 0.1

0.1 = red counters / 160

red counters = 0.1 × 160 = 16

there are 16 red counters in the box.

The expression that represents the area of the rectangle is 2x² + 6x − 20. Thus, the correct option is C.

A parallelogram in which adjacent sides are perpendicular to each other is called a rectangle. A rectangle is always a parallelogram and a quadrilateral but reverse statement may or may not be true.

The area of the rectangle is the product of its length and its width. Therefore, the area of the given rectangle is,

Area = (2x-4)(x+5)

       = 2x² + 10x - 4x - 20

       = 2x² +6x - 20

Hence, the expression that represents the area of the rectangle is 2x² + 6x − 20. Thus, the correct option is C.

The complete question is:

Write a simplified polynomial expression in standard form to represent the area of the rectangle below.

The image of the rectangle is given below.

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Answer: X = 5.0

Step-by-step explanation:

- since these are right triangles you can use trigonometry to solve this pretty easily

- for this situation, you only have to use sine/sin

__________________________________________________________

- to start you just need to identify which side is which:

- so, for this problem the equation is: [tex]10xSin(45) = 7.071067812[/tex]

__________________________________________________________

- so 7.071067812 is the hypotenuse of the smaller triangle so you just do the same thing again

- start with identifying which side is which:

- so for this part, the equation is: [tex]7.071067812xSin(45) = 5.0[/tex]

- so X = 5.0

__________________________________________________________

hope this helps :)

Answer:

x = 5

Step-by-step explanation:

Check the file for detailed solution.

This involves SOH-CAH-TOA method, always remember that the opposite of the 90 degree mark is always the hypotenuse. Meanwhile, the position of the given angle (theta) is dependent on which side it is placed. It give either an adjacent or opposite side.

The value of GX is 13 and m ∠ABX is 22°

With the information, we have

EX = 4z + 1  and XF = 2z + 7

It is important to note that  EX = XF = GX are congruent, that is, they are equal

Equate EX = XF to determine z

4z + 1 = 2z + 7

Collect like terms

2z = 6

z = 3

We know that  EX = XF = GX and x = 3, substitute into the value of any one

EX = 4(3) + 1

EX = 13

EX = GX

GX = 13

To determine m ∠ABX, we divide m ∠ABC by 2

We have

m ∠ABX  = 44/2

m ∠ABX = 22°

Therefore, the value of GX is 13 and m ∠ABX is 22°

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Answer:  13, 22°  

Step-by-step explanation:  Trust Me!  

Answer is correct on Edge. Good Luck!  :)

GX = 13

mABX = 22°

Answer:

180%

Step-by-step explanation:

Given:

The rectangle on the left is fully shaded in meaning that is 1 whole (100%)

The rectangle on the right is 4 / 5 shaded, 4 / 5 = 0.8 (80%)

Combining these will be 100 + 80 = 180%

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Step-by-step explanation:

The volume of the cone is 1, 139. 49 cm³

Height of cone = 17cm

Base of cone = 16cm

Diameter = 16cm

Radius = diameter/2 = 16/2 = 8cm

Formula for volume of a cone = [tex]\pi r^{2} \frac{h}{3}[/tex]

Substitute the values

Volume = [tex]3. 142[/tex] × [tex]8[/tex] × [tex]8[/tex] × [tex]\frac{17}{3}[/tex]

Volume = [tex]201. 088[/tex] × [tex]5. 67[/tex]

Volume = 1, 139. 49 cm³

Thus, the volume of the cone is 1, 139. 49 cm³

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The polynomial in its simplest form is 3x³ + x² + 6x-9 , Option D is the correct answer.

The algebraic expression that consists of variables and coefficients are called Polynomials.

It is given that

The variables A, B, and C represent polynomials

where

A = x²

B = 3x + 2

C = x - 3

The Polynomial AB -C² = ?

From the value given

AB -C² = x² (3x + 2) - (x - 3)²

= 3x³  + 2x² - x² - 9 + 6x

= 3x³ + x² + 6x-9

Therefore the polynomial in its simplest form is 3x³ + x² + 6x-9 , Option D is the correct answer.

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Answer: its 7

Step-by-step explanation: hope it helps

The line which has a gradient of 6 is A. line A

To answer the question, we need to know what the gradient of a line is.

The gradient of a line is its slope. It is given by m = Δy/Δx where

Now, to find the line that has the gradient of 6, we see that the gradient

So, for a high value of gradient, we need

Also, since 6 is positive, the gradient for the line will be positive.

The only line that meets these criteria is line A.

So, the line which has a gradient of 6 is A. line A

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Point Y is the centre of the circle that passes through points D, E, and F.So option A is correct.

If we draw a circle through all the vertices of a triangle then the circle obtained is the circumcircle of the given triangle.

And the circumcenter is the centre point of the circumcircle which is obtained by the point of intersection of the perpendicular bisector of all the sides of the triangle.

Therefore, since Y is the circumcenter of the triangle DEF, so, point Y is the centre of the circle that passes through points D, E, and F.

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Answer:

A

Step-by-step explanation:

Answer:

The correct option is OPTION (A) .

The area of a 2D form is the amount of space within its perimeter. The area of the garden is 72 feet² and the perimeter of the garden is 36 feet.

The area of a 2D form is the amount of space within its perimeter. It is measured in square units such as cm2, m2, and so on. To find the area of a square formula or another quadrilateral, multiply its length by its width.

The diagram for the given garden is given below.

1.) The area of the garden is,

The area of the garden = Area of rectangle + Area of triangle

                                       = (6 x 8) + (0.5 x 6 x 8)

                                       = 48 + 24

                                       = 72 feet²

2.) The perimeter of the garden is,

The perimeter of the triangle = 12 + 8 + 6 + 10 = 36 feet

Hence, the area of the garden is 72 feet² and the perimeter of the garden is 36 feet.

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Answer:

5/12

Step-by-step explanation:

A ratio of 3:4 means that red counters make up 3/7 of the sum of red and blue counters and blue counters make up 4/7 of the total sum of red and blue counters.

If there is 20 blue counters, then 20 is 4/7 of the sum of the total red and blue counters.

So we need to solve for the total sum.

[tex] \frac{4}{7} x = 20[/tex]

[tex]4x = 140[/tex]

[tex]x = 35[/tex]

So the total amount of red and blue counters are 35,

So this means the amount of red counters is 15.

The amount of yellow counters is 25.

So the total number of counters are 60.

So P(Yellow counters)= 25/60= 5/12

Hello,

We have A(3, 5) and B(5, 6)

[tex]m=\frac{y_{B}-y_{A}}{x_{B}-x_{A}} =\frac{6-5}{5-3} =\frac{1}{2}[/tex]  

We know the line contain the point (3, 5)

    y = 1/2x + b

⇔ 5 = 1/2 × 3 + b

⇔ 5 = 3/2 + b

⇔ 5 - 3/2 = b

⇔ b = 10/2 - 3/2

⇔ b = (10 - 3)/2

⇔ b = 7/2

[tex]\boxed{y = \frac{1}{2}x + \frac{7}{2} }[/tex]

Answer:

Step-by-step explanation:

Arithmetic sequence:

   a = first term = 4

   d = common difference =  second term - first term

       = 9 - 4

   d  = 5

[tex]\sf t_n =a +(n -1)*d[/tex]

   = 4 + (n - 1) *5

   = 4 + 5n - 5

    = 5n -1

Check; n= 1 ,  first term = 5*1 - 1 = 5 - 1 = 4

           n = 2,  second term = 5*2 - 1 = 10 -1 = 9

           n = 3, third term = 5*3 - 1 = 15 - 1 = 1

The next term, fifth term  = 5*5 - 1

                                          = 25 - 1

                                          = 24

Using translation concepts, it is found that the equation of the blue graph is given by:

C. G(x) = (x - 1)³.

A translation is represented by a change in the function graph, according to operations such as multiplication or sum/subtraction in it's definition.

In this problem, the function G(x) is a shift of one unit right of F(x) = x³, hence it's equation is:

G(x) = F(x - 1) = (x - 1)³.

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The probability that the person uses exactly one of the facilities is 0.64

Probability is the likelihood of an event happening or an event not happening.

When it is certain an event would happen the probability is 1.

Probability can be independent or mutually exclusive.

Analysis:

Find analysis in the attached file.

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Answer: 4

Step-by-step explanation:

The ratio of the areas of similar figures is the square of the side length.

Since the ratio of the areas is 16:4 = 4:1, the ratio of the side lengths is 2:1.

So, the length of the corresponding side is 2(2) = 4.

Answer:

m = 0.875

Step-by-step explanation:

the 3 angles lie on a straight line and sum to 180° , that is

4m + 83 + 4m + 90 = 180

8m + 173 = 180 ( subtract 173 from both sides )

8m = 7 ( divide both sides by 8 )

m = [tex]\frac{7}{8}[/tex] = 0.875

a. Distance moved by effort = 1 meter

b. Work done by effort = 80 Joules

c. Losses in energy = 18 Joules

a. Note that velocity ratio is defined as the ratio of a distance through which any part of a machine moves to the distance moved by its parts

Velocity ratio = distance moved by the effort/distance moved by the body

Where velocity ratio = 5

vertical distance = 20cm

Distance moved by effort = 5 × 0. 20 = 1 meter

b. Formula for work done is given as ;

Work done = Effort × distance moved by effort

Work done = 80 × 1

Work done = 80 Newtons

c. First, let's find the work output

Work output = m g h

Work output = 50 × 9.8 × 0. 20

Work output = 98 Joules

Losses in energy = Work output - work done

Losses in energy = 98 - 80

Losses in energy = 18 Joules

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The drug will decay to 82% of the initial dosage after 7.18 hours.

Finding the Decay constant(λ):

λ = 0.693 / (half-life)

we are given that the half-life is 47 hours

λ = 0.693 / (47)

λ = 0.01925 /hour

Time is taken for 82% decay:

Since decay is first-order, we will use the formula:

[tex]t = \frac{2.303}{0.0192} log\frac{100}{82}[/tex]

Final amount = 100*82/100 = 82 mg

Replacing the values in the equation:

t = 2.303/ 0.0192 x 0.06

t = 7.18 hours

Therefore, the drug will decay to 82% of the initial dosage after 7.18 hours.

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The distance between the initial position and the final position is 72.1ft

The initial position is (0ft, 0ft). Where the notation used is:

(horizontal position, vertical position).

Martha climbs 40 steps, then the final position is:

(40*1ft, 40*1.5ft) = (40ft, 60ft)

The distance between the initial position and the final position is:

[tex]d = \sqrt{(40ft - 0ft)^2 + (60ft - 0ft)^2} = 72.1ft[/tex]

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