correct answer will be marrk as braineast answer​

Answer: y=-1x+0

so,  y=-1x

Answer:

45

Step-by-step explanation:

angle 7 is right angle because its congruent to 4 by alt.int.angles

so if its isosceles,

180-90=90

90/2= 45

angle 5 = 45

Answer:

First to find AB we use cosine

cos ∅ = Adjacent / hypotenuse

AB is the adjacent

BC is the hypotenuse

cos ∅ = AB/AC

cos 70 = AB / 8

AB = 8 cos 70°

AB = 2.736

AB = 2.7cm to one decimal place

Hope this helps

Answer:

did u ever get hte answers for this ?

Answer: D (4,1)

Step-by-step explanation:

2x + 3(x-3) = 11

2x + 3x - 9 = 11

5x = 11 + 9

x = 20/5 = 4

y = x-3

= 4-3 = 1

Answer: 640

Step-by-step explanation:

8 x 8 x 9 + 1/3 (8 x 8 x 3)

= 640  in cubic ft

The volume in cubic feet of space the tent occupies will be 640 cubic feet.

The steps are as follow:

Length = 8 ft.

Width = 8 ft.

height = 9 ft.

Length = width = 8 ft.

height = 3 ft.

volume of cuboid = length x width x height

volume of cuboid = 8 x 8 x 9

volume of cuboid = 576 cubic ft

volume of square pyramid = (length x length x height) / 3

volume of square pyramid = (8 x 8 x 3) / 3

volume of square pyramid = 64 cubic ft.

volume of cuboid + volume of square pyramid = 576 + 64

Total volume of space = 640 cubic feet

So the volume in cubic feet of space the tent occupies will be 640 cubic feet

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Answer:

342/6 = 57

Step-by-step explanation:

Just basic division

Answer:

(i) The slope of line 'T' is 2.

(ii) The slope of line 'R' is -[tex]\frac{1}{2}[/tex]

Step-by-step explanation:

(i) A line 'T' is parallel to line whose equation is; 3y = 6x + 9

We are to find the slope of this line;

The slopes of two parallel lines is the same.

To put the equation of our second line in cartesian plane format;

3y = 6x + 9

Dividing throughout by 3 we get;

y = 2x + 3

So the slope of our line is 2 and so the slope of the line 'T' is 2.

(ii) Another line 'R' is perpendicular to the line whose equation is 3y = 6x + 9

We are to find the gradient/slope of this line;

The product of any two perpendicular lines is -1.

To put the equation of our second line in cartesian plane format;

3y = 6x + 9

Dividing throughout by 3 we get;

y = 2x + 3

The slope of our second line is 2

Let the slope of line 'R' equal to a

So a × 2 = -1

Hence the slope of our line 'R' =  a = [tex]\frac{-1}{2}[/tex] = -[tex]\frac{1}{2}[/tex]

Answer:

21 glasses of water.

Step-by-step explanation:

You can do a proportion.

[tex]\fraction{1 glass}{1/6 of a bottle)[/tex] or

1 glass/1/6 of a bottle.

x glasses/3.5 bottles.

You can cross multiply.

1/6 times x is 1/6x

1 times 3.5 is 3.5/

1/6x=3.5.

do the reciprocal of 1/6 which is 6.

So, 6 times 3.5 is 21.

Therefore, you have 21 glasses of water.

Answer: 0 and 12

Step-by-step explanation:

Fractions and mixed numbers aren’t rational numbers and pi isn’t a rational number.

Whole numbers are rational numbers, though so 0 and 12 are your answers.

Answer:

0 and 12

Step-by-step explanation:

you cant have mixed numbers and pie is never ending

Answer:

[tex]x^2 - 8x + 7 = 0[/tex]

Step-by-step explanation:

Let the boy's present age be x.

Let his dad's present name be y.

Last year, his dad was 8 times as old as him. Subtract one year from each their ages and multiply the son's age by 8:

(y - 1) = 8(x - 1) ______ (1)

Now, his dad's age is the square of his age:

y = [tex]x^2[/tex] _________(2)

From (1):

y = 8x - 8 + 1

y = 8x -7

Put this in (2):

[tex]8x - 7 = x^2\\\\=> x^2 - 8x + 7 = 0[/tex]

This problem has been represented in the form of a quadratic equation.

Answer:

There are no solutions.

Step-by-step explanation:

1y+6=26+1y

Add -1y and -6 on both sides.

1y-1y=26-6

Factor out y.

y(1-1)=20

y(0)=20

0=20

There are no solutions for y.

Answer:

b. is correct

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Answer:

feet/inches

Step-by-step explanation:

most gardening hoses are like 20 feet and 8 inches or whatever. So the best unit would be feet/inches

feet/inches is the best measure the length of a garden hose

A unit is any standard used for making comparisons in measurements. Unit conversions allow for measurements of a property that have been recorded using different units—for instance, centimeters to inches.

Most gardening hoses are like 20 feet and 8 inches or whatever. So the best unit would be feet/inches

Hence, feet/inches is the best measure the length of a garden hose.

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Answer:

FG = 28

Step-by-step explanation:

You are given the ratio 1:2. That means that the photocopied monorail is twice as big as the original. All you need to do is multiply 14 by 2 to get your answer.

Answer:

FG=28

Step-by-step explanation:

cuz the ratio is 1:2 so 14*2=28

Answer:

Jemima is wrong because perimeter is sum of all sides and the perimeter of this figure would be the outer sides of it and not the inner sides.

Answer:

See below.

Step-by-step explanation:

She is wrong because  3 times the perimeter  of one triangle is the sum of 9 sides of the triangles.

In the shape  we see that some of the sides of the triangles are 'shared' and dare not part of the perimeter of the shape,  - the perimeter is only the length of 5 sides of a triangle.

So the perimeter is less than the sum of the sides of the 3  triangles.

Answer:

n=-3

Step-by-step explanation:

11(n – 1) + 35 = 3n

expand left side

11n-11+35=3n

Add-11 to 35

11n+35-11=3n

11n+24=3n

subtract 24 from both sides

11n+24-24=3n-24

11n=3n-24

subtract3n from both sides

11n-3n=3n-24-3n

8n=-24

divide both sides by 8

8n/8=-24/8

n=-3

Answer:

Step-by-step explanation:

[tex]11(n -1) + 35 = 3n\\n =? \\11n -11 +35=3n\\Collect-like-terms\\11n-3n=-35+11\\4n =-24\\divide -both-sides-of-the-equation\\n = \frac{-24}{4} \\n = -6\\\\[/tex]

Answer:

D

Step-by-step explanation:

The angle between the vertical and horizontal line is 90°, thus

75° + x = 90° ( subtract 75 from both sides )

x = 15° → D

Answer:

Step-by-step explanation:

The perimeter of this figure is the sum of the side lengths shown:

6 + 8x + 18 + 13x

Combining like terms, we get 21x + 24.  This is one way in which to calculate the perimeter of the figure.  Another way would be (x)(8 + 13) + 6(1 + 3).  

Answer:

gradient = 3

Step-by-step explanation:

Calculate the gradient using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = - 6, 4) and (x₂, y₂ ) = (- 4, 10)

m = [tex]\frac{10-4}{-4+6}[/tex] = [tex]\frac{6}{2}[/tex] = 3

Answer:

i hope its clear . the answer is 3 .

Answer:

14)

21√2

15)

Leg: 7√3

Hypotenuse: 14

Step-by-step explanation:

The hypotenuse is √2 as long as each leg. That means the leg is 42/√2. Simplified to make 21√2.

The hypotenuse is always twice as long as the shortest leg on a 30-60-90 triangle. The longer leg is √3 as long as the shortest side.

Answer:

729

Step-by-step explanation:

x=

9^3=729

729×(9/9^6)

9/9=1

1^6=1

Therfore, 729×1=729

Answer:

(-4,8)

Step-by-step explanation:

(-1, 2) => (x, y)

is translated 6 units up => 2+6 = 8

3 units left => -1-3 = -4

the coordinates of A′ => (-4, 8)

would appreciate brainliest!

Answer:

75 is the required answer.

Step-by-step explanation:

Length of missing side = S

(45xS)/2 = 1350

S = 60

Hypotenuse = √(45^2 + 60^2) = 75

Best Regards!

Answer:

  16 cm^2

Step-by-step explanation:

The sum of length and width is half the perimeter, so is 12 cm. Since the width is 4 cm, the length is 12 cm -4 cm = 8 cm.

The area of the rectangle is the product of length and width, so is ...

  rectangle area = (8 cm)(4 cm) = 32 cm^2

The area of the triangle is half the area of the rectangle, so is 16 cm^2.

Answer:

4x + 6

Step-by-step explanation:

Given

[tex]\frac{x}{x^2+3x+2}[/tex] + [tex]\frac{3}{x+1}[/tex]

Before we can add the fractions we require them to have a common denominator.

Factor the denominator of the first fraction

[tex]\frac{x}{(x+1)(x+2)}[/tex] + [tex]\frac{3}{x+1}[/tex]

Multiply the numerator / denominator of the second fraction by (x + 2)

= [tex]\frac{x}{(x+1)(x+2)}[/tex] + [tex]\frac{3(x+2)}{(x+1)(x+2)}[/tex] ← fractions now have a common denominator

Add the numerators leaving the denominators

= [tex]\frac{x+3(x+2)}{(x+1)(x+2)}[/tex]

= [tex]\frac{x+3x+6}{(x+1)(x+2)}[/tex]

= [tex]\frac{4x+6}{(x+1)(x+2)}[/tex] ← simplified sum with numerator 4x + 6

Answer: The expression is (c-7) / 3

Step-by-step explanation:

Let's say Adam has c pieces of candy

He took seven pieces for himself which means we can write this as c-7

He then divided this amount between his 3 children (c-7)/3

Answer:

Answer: Choice C)  

Stretched vertically, flipped over x axis, shifted 7 units down

Step-by-step explanation:

The graph of g(x) is graph of f(x) reflected along the y - axis. Its magnitude is also multiplied by 2.

A cubic function is of the form f(x) = ax³ + bx² + cx + d, where a, b, c, and d are constants and a ≠ 0. It has a degree of 3 and has 3 possible roots.

We have the following functions -

f(x) = x³

g(x) = -2x³

The graph of g(x) is graph of f(x) reflected along the y - axis. Its magnitude is also multiplied by 2. Refer to the graph attached.

Therefore, the graph of g(x) is graph of f(x) reflected along the y - axis. Its magnitude is also multiplied by 2.

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Answer:

m∠D = 32°

Step-by-step explanation:

From the figure attached,

In ΔABE,

By the property of a triangle,

m∠AEB + m∠ABE + m∠AEB = 180°

14° + 45° + m∠AEB = 180°

m∠AEB = 180° - 59°

m∠AEB = 121°

Since, m∠AEB = m∠CED = 121° [Vertical angles]

Similarly, in triangle CDE,

m∠ECD + m∠CED + m∠EDC = 180°

27 + 121 + m∠CDE = 180

m∠CDE = 180 - 148

m∠D = 32°

Answer:

Total area = 237.09 cm²

Step-by-step explanation:

Given question is incomplete; here is the complete question.

Field book of an agricultural land is given in the figure. It is divided into 4 plots. Plot I is a right triangle, plot II is an equilateral triangle, plot III is a rectangle and plot IV is a trapezium, Find the area of each plot and the total area of the field. ( use √3 =1.73)

From the figure attached,

Area of the right triangle I = [tex]\frac{1}{2}(\text{Base})\times (\text{Height})[/tex]

Area of ΔADC = [tex]\frac{1}{2}(\text{CD})(\text{AD})[/tex]

                        = [tex]\frac{1}{2}(\sqrt{(AC)^2-(AD)^2})(\text{AD})[/tex]

                        = [tex]\frac{1}{2}(\sqrt{(13)^2-(19-7)^2} )(19-7)[/tex]

                        = [tex]\frac{1}{2}(\sqrt{169-144})(12)[/tex]

                        = [tex]\frac{1}{2}(5)(12)[/tex]

                        = 30 cm²

Area of equilateral triangle II = [tex]\frac{\sqrt{3} }{4}(\text{Side})^2[/tex]

Area of equilateral triangle II = [tex]\frac{\sqrt{3}}{4}(13)^2[/tex]

                                                = [tex]\frac{(1.73)(169)}{4}[/tex]

                                                = 73.0925

                                                ≈ 73.09 cm²

Area of rectangle III = Length × width

                                 = CF × CD

                                 = 7 × 5

                                 = 35 cm²

Area of trapezium EFGH = [tex]\frac{1}{2}(\text{EF}+\text{GH})(\text{FJ})[/tex]

Since, GH = GJ + JK + KH

17 = [tex]\sqrt{9^{2}-x^{2}}+5+\sqrt{(15)^2-x^{2}}[/tex]

12 = [tex]\sqrt{81-x^2}+\sqrt{225-x^2}[/tex]

144 = (81 - x²) + (225 - x²) + 2[tex]\sqrt{(81-x^2)(225-x^2)}[/tex]

144 - 306 = -2x² + [tex]2\sqrt{(81-x^2)(225-x^2)}[/tex]

-81 = -x² + [tex]\sqrt{(81-x^2)(225-x^2)}[/tex]

(x² - 81)² = (81 - x²)(225 - x²)

x⁴ + 6561 - 162x² = 18225 - 306x² + x⁴

144x² - 11664 = 0

x² = 81

x = 9 cm

Now area of plot IV = [tex]\frac{1}{2}(5+17)(9)[/tex]

                                = 99 cm²

Total Area of the land = 30 + 73.09 + 35 + 99

                                    = 237.09 cm²