Please HELP!!!!!!!!!!

Answer:

1.25

5/4

1 1/4

Step-by-step explanation:

The dimensions of rectangle A are L=12 and W=8. The dimensions of rectangle B are L=15 and W=10.

We are told rectangle B is a copy of rectangle A, thus we must find the scale factor by dividing both dimensions:

15/12=5/4

10/8 =5/4

Dividing 5/4 we get 1.25.

Converting 5/4 to mixed fraction: 5/4= 1 1/4

There are three valid selections:

1.25

5/4

1 1/4

Answer:

x = infinite amount of solutions

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Algebra I

Step-by-step explanation:

Step 1: Define Equation

2(x + 4) = 4x + 3 - 2x + 5

Step 2: Solve for x

Here we see that x does indeed equal x.

∴ x = infinite amount of solutions

Answer:

x = 84°

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

129° is an exterior angle of the triangle, thus

x + 45° = 129° ( subtract 45° from both sides )

x = 84°

The 2 triangles formed by the tree/ shadow and Jordan/ shadow are similar and ratio of corresponding sides are equal, that is

let h be the height of the tree, then

[tex]\frac{h}{7}[/tex] = [tex]\frac{50}{10}[/tex] = 5 ( multiply both sides by 7 )

h = 35

The height of the tree is 35 ft

Answer:

The ratio of green apples to red apples is .

Step-by-step explanation:

Given,

Number of red apples = 21

Number of green apples = 18

We have to find out the ratio of green apples to red apples.

Solution,

For finding the ratio we have to divide the number of green apples to the number of red apples.

So, we can frame the above sentence as;

Ratio = number of green apples/number of red apples

Now substituting the values, we get;

Ratio= 18/21 = 6/7

Hence The ratio of green apples to red apples is . 6/7

Answer:

(x-4)(x-3)

Step-by-step explanation:

quadratic equation is always squared so I will squared it myself

Answer:

9

Step-by-step explanation:

(5x-4)+(6x-5)=90 degrees, because complementary angles add up to 90 degrees. So, 11x-9=90, 11x=99, then x=9.

Answer:

Arielle has 374 grasshoppers and 187 crickets

Step-by-step explanation:

Let's set:

x = number of grasshoppers

y = number of crickets

Arielle has a collection of 561 insects, thus:

x + y = 561            [1]

The number of grasshoppers is twice the number of crickets, thus:

x = 2y                   [2]

Substituting [2] in [1]:

2y + y = 561

Simplifying:

3y = 561

Dividing by 3:

y = 561/3

y = 187

From [2]:

x = 2*187 = 374

x = 374

Arielle has 374 grasshoppers and 187 crickets

Answer:

2x and 8y

Step-by-step explanation:

Distribute:

5*x=5x

5*y=5y

-3*x=-3x

-3*-y=3y

Combine:

5x+-3x= 2x

5y+3y= 8y

Hope this helps!!!

Answer:

black

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

The area of any quadrilateral can be determined by multiplying the length of its base by its height. Since we know the shape here is square, we know that all sides are of equal length. From this we can work backwards by taking the square root of the area to find the length of one side.

Step-by-step explanation:

do you mean ≤ if so check this solution out

-7≤x+2/4

find the LCM of X+2/4

LCM=4x+2 /4

-7≤4x+2/4

then you cross multiply

-28≤4x+2

collect like terms

-28-2≤4x

-30≤4x

X=-7.5

I hope it helps

                                         Answer and Explanation

__________________________________________________________

__________________________________________________________

The value of x is 20.

We can figure this out by...

__________________________________________________________

[tex]\frac{3x}{5}-x=\frac{x}{15}-\frac{28}{3}[/tex] but what does x equal?

[tex]\frac{3\cdot20}{5}-20[/tex] = [tex]-8[/tex]

[tex]\frac{20}{15}-\frac{28}{3}[/tex] = [tex]-8[/tex]

Since both are equal to -8, that means [tex]\frac{3\cdot20}{5}-20[/tex] = [tex]\frac{20}{15}-\frac{28}{3}[/tex].

Which means that...

x = 20

__________________________________________________________

Hope this helps! <3

__________________________________________________________

Answer:

24

Step-by-step explanation:

Answer:

no what you mean by 218√

Step-by-step explanation:

there has to be a 90 degree angle for it to be a right triangle

Answer:

20/7

Step-by-step explanation:

hope this helps, but basically you divide 20 yards by 7 to get the width of each row

Answer:

8     4 / 7

Step-by-step explanation:

have absolutley no idea.. i might want to learn this to lol

Answer:

16

Step-by-step explanation:

n-14=2

add 14 on both sides to get 16

In the statement, A number subtracted from 14 is 2 the unknown number

is 12.

A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.

Given, A number subtracted from 14 is 2.

Let the unknown number be 'n'.

∴ 14 - n = 2.

- n = 2 - 14.

- n = - 12.

n = 12.

learn more about numerical expressions here :

https://brainly.com/question/29199574

#SPJ2

Answer:

32 Students

Step-by-step explanation:

3/5 = 12/20

This means you add the boys and girls to get 32.

Answer:

139°

Step-by-step explanation:

According to the question

The equation is

4r+17+4r+115=180

8r+132=180

8r=48

r=6

So BYF =

4.6+115

24+115

139°

Answer:

139

Step-by-step explanation:

Answer:

The dimensions of the smallest piece that can be used are: 10 by 20 and the area is 200 square inches

Step-by-step explanation:

We have that:

[tex]Area = 128[/tex]

Let the dimension of the paper be x and y;

Such that:

[tex]Length = x[/tex]

[tex]Width = y[/tex]

So:

[tex]Area = x * y[/tex]

Substitute 128 for Area

[tex]128 = x * y[/tex]

Make x the subject

[tex]x = \frac{128}{y}[/tex]

When 1 inch margin is at top and bottom

The length becomes:

[tex]Length = x + 1 + 1[/tex]

[tex]Length = x + 2[/tex]

When 2 inch margin is at both sides

The width becomes:

[tex]Width = y + 2 + 2[/tex]

[tex]Width = y + 4[/tex]

The New Area (A) is then calculated as:

[tex]A = (x + 2) * (y + 4)[/tex]

Substitute [tex]\frac{128}{y}[/tex] for x

[tex]A = (\frac{128}{y} + 2) * (y + 4)[/tex]

Open Brackets

[tex]A = 128 + \frac{512}{y} + 2y + 8[/tex]

Collect Like Terms

[tex]A = \frac{512}{y} + 2y + 8+128[/tex]

[tex]A = \frac{512}{y} + 2y + 136[/tex]

[tex]A= 512y^{-1} + 2y + 136[/tex]

To calculate the smallest possible value of y, we have to apply calculus.

Different A with respect to y

[tex]A' = -512y^{-2} + 2[/tex]

Set

[tex]A' = 0[/tex]

This gives:

[tex]0 = -512y^{-2} + 2[/tex]

Collect Like Terms

[tex]512y^{-2} = 2[/tex]

Multiply through by [tex]y^2[/tex]

[tex]y^2 * 512y^{-2} = 2 * y^2[/tex]

[tex]512 = 2y^2[/tex]

Divide through by 2

[tex]256=y^2[/tex]

Take square roots of both sides

[tex]\sqrt{256=y^2[/tex]

[tex]16=y[/tex]

[tex]y = 16[/tex]

Recall that:

[tex]x = \frac{128}{y}[/tex]

[tex]x = \frac{128}{16}[/tex]

[tex]x = 8[/tex]

Recall that the new dimensions are:

[tex]Length = x + 2[/tex]

[tex]Width = y + 4[/tex]

So:

[tex]Length = 8 + 2[/tex]

[tex]Length = 10[/tex]

[tex]Width = 16 + 4[/tex]

[tex]Width = 20[/tex]

To double-check;

Differentiate A'

[tex]A' = -512y^{-2} + 2[/tex]

[tex]A" = -2 * -512y^{-3}[/tex]

[tex]A" = 1024y^{-3}[/tex]

[tex]A" = \frac{1024}{y^3}[/tex]

The above value is:

[tex]A" = \frac{1024}{y^3} > 0[/tex]

This means that the calculated values are at minimum.

Hence, the dimensions of the smallest piece that can be used are: 10 by 20 and the area is 200 square inches

Answer:

my answer is (5±√10)/3

y=-5x

Step-by-step explanation:

hsjsudiejejfjnfkekek

Answer:if the answer you are looking for has to do with the diagram its the one with the arrow pointing to the left

Step-by-step explanation:

Answer:

vvvgghhi

hi

Step-by-step explanation:

ggguuuuuuuuhh

Answer:

False

Step-by-step explanation:

hope this helps!

Answer:

the product of the given radical is [tex]\sqrt[5]{12}[/tex]

Step-by-step explanation:

The computation of the product of the given radicals is as follows

According to the question, the following radical is

[tex]\sqrt{50} \ and \sqrt[5]{6}[/tex]

Now simplify it

[tex]\sqrt{25 \times 2} and \sqrt[5]{6}\\\\\sqrt{25} \sqrt{2} and \sqrt[5]{6}\\\\\sqrt[5]{2} and \sqrt[5]{6}\\\\\sqrt[5]{12}[/tex]

Hence, the product of the given radical is [tex]\sqrt[5]{12}[/tex]

This is the answer but the same is not given in the options

Answer:

The answer is "5.7"

Step-by-step explanation:

Using the cosine rule.

[tex]\cos T = \frac{r^2+s^2-t^2}{2rs} \\\\t^2= r^2+s^2-2rs \cos T ........(i)\\\\r=1.7\\s=7.3\\T=15\\\\t^2= (1.7)^2+(7.3)^2-2(1.7)(7.3) \cos 15^{\circ} \\\\[/tex]

   [tex]=2.89+53.29-24.82(0.9659)\\\\=32.2064[/tex]

[tex]t= 5.6751 =5.7[/tex]

Answer:

Option A and Option C

Step-by-step explanation:

Given:

IJ ≅ LM

∠J ≅ ∠M

To Prove:

ΔHIJ ≅ ΔKLM

              Statements                           Reasons

1). IJ ≅ LM                               1). Given

2). ∠J = m∠M                          2). Given

3). ΔHIJ ≅ ΔKLM                    3). By HA property Or AAS property of

                                                    congruence

Therefore, Option A and Option C are the correct options.