Which graphs are proportional?

A.
B.
C.
D.

Answer:

3   3/4

Step-by-step explanation:

i looked it up with https://www.calculator.net/fraction-calculator.html

Answer:

im leaning option D

Step-by-step explanation:

Answer:

2 , Real

Step-by-step explanation:

The quadratic equation is ,

⇒ 4x² - x - 4 = 0 .

Since it is a quadratic equation and has the highest degree of variable as 2 therefore it will have two solutions . For determining the nature of roots we will find the discriminant . The Discriminant of a quadratic equation in standard form of ax² + bx + c = 0 , is ,

⇒ D = b² - 4ac

⇒ D = (-1)² - 4 × 4 × (-4)

⇒ D = 1 + 64

⇒ D = 65 .

Since Discriminant is Greater than 0 , therefore the roots will be real .

what do you mean.. is this some other things not about math?

Answer:

x⁰ = 45⁰

Step-by-step explanation:

As it is given that the 2 sides of a triangle are equal, then it is an isosceles triangle.

Now, by applying the Triangle Sum Property,

x⁰ + 90⁰ + 45⁰ = 180⁰

x⁰ = 180⁰ - 135⁰

x⁰ = 45⁰

Hope it helps :)

Answer:

x = 45 degrees

Step-by-step explanation:

A triangle is always 180 degrees. One angle is already labeled 45 degrees, and we can tell this is a right triangle, so the other angle is 90 degrees. Add 45 + 90 to get 135. Then subtract 135 from 180 to get 45, which is the value of the missing angle.

Answer:

69 (lol)

Step-by-step explanation:

PEMDAS

parentheses, exponents, multiply, divide, add, subtract (in that order)

[tex](8*12)-2(\frac{60}{10} )-15\\=96-2(\frac{60}{10} )-15\\=96-2(6)-15\\=96-12+(-15)\\=96-27\\=69[/tex]

sorry it can't fit the other half

Answer:

Maximum Value / Vertex : (-2,16)

Step-by-step explanation:

Since the value of a is negative, we will solve for the maximum.

Finding the x-value of the vertex of the parabola is x=-b/2a:

x=-(-4)/2(-1)

x=4/-2

x=-2

Now if we plug x=-2 into the function, we'll get our y-value for the vertex:

f(-2)=-(-2)^2-4(-2)+12

f(-2)=-(4)+8+12

f(-2)=-4+20

f(-2)=16

So the vertex of our parabola is (-2,16) which is our maximum value

Answer:

18 square units

Step-by-step explanation:

The area of a rectangle is simply it's base length multiplied by its height.

A = b × h

Since a rectangle has all right angles, it must have two sets of parallel sides.

Given the coordinates (0, 0), (3, 0), (0, 6) which are vertices of the rectangle. You can find the distance between each point to get the side length and then multiply the two side lengths together.

Answer:

number 2 i think

Step-by-step explanation:

H⁣⁣⁣⁣ere's l⁣⁣⁣ink t⁣⁣⁣o t⁣⁣⁣he a⁣⁣⁣nswer:

bit.[tex]^{}[/tex]ly/3a8Nt8n

Answer:

33.75

20

3624

35

the above numbers are for each of the blanks

the mean - 928.19

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

You can find the slope of two points with the point slope form, [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

in this case, y2=8, y1=0, x2=3, x1=1

plug those numbers in

(8-0)/(3-1)

8/2, or 4

Answer:

i think it is 47

Step-by-step explanation:

Answer:

B. 5438

Step-by-step explanation:

[(78-65)×626]-2700=5438

The correct option is, (B) 5438

In general, profit is defined as the amount generated from the sale of a product, which should be greater than the product's cost price. It is the amount gained from any business activity. In other words, if a product's selling price (SP) is more than its cost price (CP), it is deemed a gain or profit. It refers to the financial gain obtained when the revenue from a company activity exceeds the costs of running the business, such as taxes and expenses.

Profit is better expressed in terms of cost and sale price. The cost price of a product or commodity is the price at which it is purchased, whereas the selling price is the price at which it is sold. If the selling price of the commodity is more than the cost price, the company has made a profit. Profit or Gain = Selling Price – Cost Price is the formula for calculating profit.

However, when a product is sold for less than its cost price, it is referred to as a loss. As a result, loss equals cost price minus selling price.

According, to the question:

A business makes 78.00 per unit and pays 2,700.00 in monthly charges, such as rent and bills, plus 65.00 in manufacturing costs each unit. If the firm sold 626 units in the previous month.

[(78-65)×626]-2700

= 5438

Hence, The company's overall profit is 5438.

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Answer:

3

Step-by-step explanation:

2x² - 7x - 15 = (2x + 3) (x - 5)

                                ↑B

Answer:

8cm

Step-by-step explanation:

The length of the other leg can be determined using the Pythagoras theorem

The Pythagoras theorem : a² + b² = c²

where a = length

b = base

c = hypotenuse

17² = 15² + b²

289 = 225 + b²

b² = 289 - 225

b² = 64

b = √64

b = 8cm

Answer:

It provides different and sometimes opposing viewpoints about an event.

Answer:

5 1/3 or 5.333 or 16/3

Step-by-step explanation:

Yespp

Step-by-step explanation:

1 1/12+4/512=5 6/12= 5 1/2

Answer:

30°

Step-by-step explanation:

x + 150° = 180°

(Linear pair angles)

x = 18.° - 150°

x = 30°

Reason: Linear pair angles

30°

Step-by-step explanation:

180°-150°=30°

a straight line is always equal to 180°

since we know that and we have the 150° given , all we have to do is to subtract 150 to 180 which is 30

Answer:

errrr- I dont know but good luck !

Step-by-step explanation:

Answer:

Most likely A

Step-by-step explanation:

Considering at the beginning it says the gene for back coat color is dominant, it makes brown coat color less dominant

The answer is 624 bagels in 13 hours. The rate is 48 bagels per hour.

240/5 = 48

48 * 13 = 624

pyramid A: 16 + [tex]8\sqrt{5[/tex]

pyramid B: 400 + [tex]8\sqrt{125[/tex]

pyramid A: 4 by 4= 16 cm.

with a height of 1 and length of 2, we use pythagorean theorem to find height of other surfaces to be square root of 5. area of triangle is 1/2 bh

square root of 5 multiplied by 4 and divided by 2 is 2 root 5

multiply this by 4 sides total for 8 root 5

Add the 8 root 5 to 16

To find pyramid B: use ratio of 25:1 and multiply 16 by 25 to find 400, and root 5 to 125

Answer:

105 mph = rate of first plane

130 mph = rate of second plane

Step-by-step explanation:

Let r = rate of first plane

then r + 25 = rate of second plane

2r = distance of first plane

2(r + 25) = distance of second plane

2r + 2(r + 25) = 470

2r + 2r + 50 = 470

4r = 420

r = 105 mph

r + 25 = 130 mph

Answer:

304

Step-by-step explanation:

find the area of each side, then add together

top and bottom are 10*8= 80 80*2= 160

front and back are 10*4=40  40*2=80

left and right sides are 8*4=32  32*2=64

160+80+64=304

Answer:

-12 1/2 feet (12 1/2 feet below the surface).

Step-by-step explanation:

I hope this helps! Have a great rest of your day!

Answer:

(8.4 * 6.4) - (2.2 * 0.8)

Step-by-step explanation:

52 square meters of garden is not used to grow lettuce.

A rectangle is one of the types of quadrilaterals in which all four angles are right angles or equal to 90 degrees. It is four-sided polygon in which the opposite sides are parallel and equal to each other.

For the given situation,

The school garden is in the shape of the rectangle.

The school garden's length = 8.4 meters

The school garden's wide = 6.4 meters

The section used to grow lettuce, length = 2.2 meters

The section used to grow lettuce, width = 0.8 meters

Area of garden is not used to grow lettuce is

⇒ [tex][(8.4)(6.4)-(2.2)(0.8)][/tex]

⇒ [tex][53.76-1.76][/tex]

⇒ [tex]52[/tex]

Hence we can conclude that 52 square meters of garden is not used to grow lettuce.

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Answer:

Step-by-step explanation:

Ratio of string and charms:

Solve by cross-multiplication

The fraction of all charms to number of used:

Answer: Its 140

Step-by-step explanation:

I do russian math too... :(

but ya I don't know how to do it.

Applying the angles of intersecting chords theorem, the measure of arc EI is: 140°.

Based on the angles of intersecting chords theorem, the measure of the vertical angle formed when two chords intersect equals half the sum of the measures of the intercepted arcs.

Given the following:

m∠K = 1/2(2(EY) -m(JL))

25 = 1/2(2(m(EY)) -m(JL))

50 = 2(m(EY)) -m(JL)

m(JL) = 2(m(EY)) - 50

m∠EXY = 1/2(m(JL) + m(EY) [angles of intersecting chords theorem]

Substitute

80 = 1/2[2(m(EY)) - 50 + m(EY)]

2(80) = 2(m(EY)) - 50 + m(EY)

160 = 3(m(EY)) - 50

160 + 50 = 3(m(EY))

210 = 3(m(EY))

210/3 = m(EY)

m(EY) = 70°

m(EI) = 2(m(EY)) = 2(70)

m(EI) = 140°

Therefore, applying the angles of intersecting chords theorem, the measure of arc EI is: 140°.

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