I am very confused about this​

Answer:

I. The width is 43.5 inches.

II. The length is 24.5 inches.

Step-by-step explanation:

Let the length and width of the rectangle be L & W respectively.

Given the following data;

Perimeter of rectangle = 136 inches

Translating the word problem into an algebraic expression, we have;

L = W - 19 ......equation 1

Perimeter of rectangle = 2(L + W) ......equation 2

To find the dimensions of the rectangle;

136 = 2(L + W)

Substituting eqn 1 into eqn 2, we have;

136 = 2(W - 19 + W)

136 = 2(2W - 19)

136 = 4W - 38

4W = 136 + 38

4W = 174

W = 174/4

W = 43.5 inches

To find the length;

L = W - 19

L = 43.5 - 19

L = 24.5 inches

Given:

The slope of the line is 3.

The line passes through the point (2,-1).

To find:

The equation of the line.

Solution:

Point slope form of a line: If a line passes through the point [tex](x_1,y_1)[/tex] with slope m, then the equation of the line is

[tex]y-y_1=m(x-x_1)[/tex]

The line passes through the point (2,-1) with slope 3. So, the equation of the line is

[tex]y-(-1)=3(x-2)[/tex]

[tex]y+1=3(x-2)[/tex]

Therefore, the required equation is [tex]y+1=3(x-2)[/tex]. Hence, all the options are incorrect.

Answer:

Step-by-step explanation:

v = 3y

Answer:

Step-by-step explanation:

Answer:

10 I think but I might be wrong

Step-by-step explanation:

.........

Answer:

10

Step-by-step explanation:

You use the pythagorean theorem for this problem.

Answer:

2,016 pi cubic units

Step-by-step explanation:

Answer:

54,18

Step-by-step explanation:

for example the number 36 can be as a product of primes as 36=2 exponents two x 3 exponents 2 the expression 2 exponents 2 x 3 exponents 2 is said to be on the prime factorization of 36

Answer:

7.83

Step-by-step explanation:

cos(40)=6/(ZX)

zx=7.83

Answer:

c is answer of this question

Answer:

D. 28.26 in²

Step-by-step explanation:

A= πr²

A= (3.14)(3)²

A= 3.14 * 9

A= 28.26 in²

this question is familiar

Answer:

There is nothing there, sorry

Step-by-step explanation:

Answer:

its 84 I did the math for you

I think your right.. Great job fr

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

(6√5)²+x²=14²

36(5)+x²=196

180+x²=196

x²=196-180

x²=16

x=√16

x=4

Answer:

60.8 inches

Step-by-step explanation:

you can find the height of the triangle by using what you know about the area

A = 1/2bh

950 = 1/2(50)·h

950 = 25h

h = 950/25 = 38

To find hypotenuse you can use the Pythagorean Theorem:

38² + 50² = c²

1444 + 2500 = c²

c² = 3944

c = √3944 ≈ 62.8

Answer:

$59.5

Step-by-step explanation:

The required intercepts of the given ellipse  x²/4 + y²/9 = 1 would be (A) (0, ±3).

A y-intercept, also known as a vertical intercept, is the location where the graph of a function or relation intersects the coordinate system's y-axis.

This is done in analytic geometry using the common convention that the horizontal axis represents the variable x and the vertical axis the variable y.

These points satisfy x = 0 because of this.

So, we have the ellipse:

x²/4 + y²/9 = 1

So, the intercepts would accordingly be:

(0, ±3)

Therefore, the required intercepts of the given ellipse  x²/4 + y²/9 = 1 would be (A) (0, ±3).

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Answer:

1/4 lol

Step-by-step explanation:

1/2=2/4

2/4-1/4=1/4

or in decimal form

.50-.25 =.25

Answer:

she has read 60% of her book

Step-by-step explanation:

Answer:

65+x=150

he has 65 so if he keeps adding to it which is x and then he will get 150.

Answer:

umhhhhhhhhhh,............ 6 or 8

Step-by-step explanation:

Answer:

14 min

Step-by-step explanation:

Dividing 840 seconds by (60 sec / 1 min) results in 14 minutes.

( (60 sec / 1 min) is a conversion factor, sec to min or min to sec.)

Answer:

14 minutes

Step-by-step explanation:

840/60 = 14

Answer:

9

Step-by-step explanation:

They are alternate interior angles, so they most both equal 80.

9y-1=80

9y=81

y=9

9.84 m³ plaster will it take to completely fill the mold.

The area that any three-dimensional solid occupies is known as its volume. These solids can take the form of a cube, cuboid, cone, cylinder, or sphere.

Cubic units are used to quantify a solid's volume. For instance, the volume will be given in cubic metres if the dimensions are given in metres. The International System of Units uses this as the reference unit for volume (SI).

We have,

A rectangular prism. (2 1/4m, 2 1/2m, and 1 3/4m represents the size of the prism).

So, the capacity or Volume of mold is

V= l w h

Now, w= 2 1/2 = 5/2 = 2.5 m

and, h=1 3/4 = 7/4 = 1.75 m

and, l= 2 1/4 = 9/4 = 2.25 m

Then, the Volume is

V= 2.5 x 1.75 x 2.25

V = 9.84 m³

Thus, the required volume is 9.84 m³.

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Answer:

60

Step-by-step explanation:

Use r-combinations.

Treat it as though u are filling in 6 slots

_ _ _ _ _ _

1. First fill in the 7s, there are three of them and 6 ways to do so

so (6 Choose 3)

2. then fill in the 2s, now with the 3 slots taken up by the 7, 3 slots left.

So its (3 Choose 2).

3. and only 1 way to fill in the 8. (1 choose 1)

By multiplicative rule,

(6C3) * (3C2) * (1C1) = 60

Given:

The graphed point is (60,-20).

To find:

The ordered pair that would form a proportional relationship with the given point.

Solution:

If y is proportional to x, then

[tex]y\propto x[/tex]

[tex]y=kx[/tex]

[tex]\dfrac{y}{x}=k[/tex]

Where, k is the constant of proportionality.

For the given point,

[tex]k=\dfrac{-20}{60}[/tex]

[tex]k=\dfrac{-1}{3}[/tex]

For option (A),

[tex]k=\dfrac{30}{-10}[/tex]

[tex]k=-3\neq \dfrac{-1}{3}[/tex]

For option (B),

[tex]k=\dfrac{-15}{30}[/tex]

[tex]k=-\dfrac{1}{2}\neq \dfrac{-1}{3}[/tex]

For option (C),

[tex]k=\dfrac{10}{-30}[/tex]

[tex]k=\dfrac{-1}{3}[/tex].

The point (-30,10) gives the same value of the constant of proportionality. So, the point (-30,10) forms a proportional relationship with the given point.

Therefore, the correct option is C.

Answer:

d

Step-by-step explanation:

Answer:

[tex]y = 2x +3[/tex]

Step-by-step explanation:

Given

Parallel: [tex]y = 2x + 5[/tex]

Passes through (1,5)

Required

Determine the equation

Because it is a parallel to [tex]y = 2x + 5[/tex] then they have the slope.

The slope of [tex]y = 2x + 5[/tex] is 2 i.e. from [tex]y = mx + b[/tex]

So:

[tex]m = 2[/tex]

The line equation is then calculated using:

[tex]y = m(x - x_1) + y_1[/tex]

[tex]y = 2(x - 1) + 5[/tex]

[tex]y = 2x - 2 + 5[/tex]

[tex]y = 2x +3[/tex]