Tree Diagrams and the counting Principle (PLEASE HELP)

No a yield sign does not form a right triangle.

If all sides are equal, that is an equilateral triangle, where all angles are equal as well. In a triangle, there are 180 degrees. If all angles are equal in an equilateral triangle, each angle is 60. 180/3=60 In order for a triangle to be a right triangle, the triangle must have a right angle, which is 90 degrees. So equilateral triangles can NEVER be right triangles.

Hope this helped!

Answer:

The student answers 15 answers correctly.

Answer:

15

Step-by-step explanation:

hope it helps

1) Popcorn unit price: 17.57/7 = $2.51

2.51 x 3 = 7.53

Three bags of popcorn would cost $7.53.

2) Old games unit price: 73.10/5 = 14.62

14.62 x 6 = 87.72

If they sold six games they would've made $87.72.

3) Lollipop unit price: 20.51/7 = %2.93

2.39 x 4 = 11.72

Four lollipops would cost $11.72

4) Hotdogs unit price: 82.86/3 = $27.42

Hamburgers unit price: 55.12/2 $27.56

Hotdogs have the lower unit price. $27.42 < $27.56

5) Packs of paper unit price: 12.74/7 = $1.82

1.82 x 2 = 3.64

Two packs of paper would cost $3.64

6) Pair of shoes unit price: 49.32/4 = $12.33

12.33 x 6 = $73.98

Six pairs of shoes would cost $73.98

7) Brand A unit price: 71.28/6 = $11.88

Brand B unit price: 59.15/5 = $11.83

Brand B has the cheaper price. $11.83 < $11.88

8) Pounds of seeds unit price: 37.62/2 = $18.81

18.81 x 6 = $112.86

Six pounds of seeds would cost $112.86

9) Red Grapes unit price: .82

Green Grapes unit price: .84

Green grapes are more expensive. .84 > .82

10) Book Store unit price : 21.69/3 = $7.23

Online unit price: 14.28/2 = $7.14

Online has a lower unit price. $7.14 < $7.23

Answer:

The first click beetle went higher.

Step-by-step explanation:

The vertex is the minimum point of a parabola that opens upwards, or the maximum point of a parabola that opens downwards.

Since the height of each of the beetles at time, t seconds, is modelled as a parabola that opens downwards, the maximum height of each beetle is the y-value of the vertex.

The function representing the height, h, of the first beetle is:

\(h(t)=-16t^2+8t\)

We could complete the square to rewrite the function in vertex form, however the quickest way to find the vertex of a quadratic function in the form ax² + bx + c is to use the formula for the x-value of the vertex:

\(\boxed{x_{\sf vertex}=-\dfrac{b}{2a}}\)

Comparing  ax² + bx + c with the given function:

Therefore, substituting the values of a and b into the formula, the x-value of the vertex of h(t) is:

\(x_{\sf vertex}=-\dfrac{8}{2(-16)}=0.25\)

To find the y-value of the vertex, and thus the maximum height of the first beetle, simply substitute t = 0.25 into function h(t):

\(\begin{aligned}\implies h(0.25)&=-16(0.25)^2+8(0.25)\\&=-16(0.0625)+2\\&=-1+2\\&=1\end{aligned}\)

Therefore, the maximum height of the first beetle is 1 foot.

From inspection of the given graph modelling the height of the second beetle, we can see that the maximum y-value is approximately 0.76 feet.

As the height of the second click beetle is less than the maximum height of the first click beetle, the first beetle went higher.

Answer:

#1.40.02

#2.24.02

Step-by-step explanation:

#1.A=a2+2aa2

4+h2=42+2·4·42

4+2.242≈40.02346

#2.AL=aa2+4h2=4·42+4·2.242≈24.02346

Answer:

-9

Step-by-step explanation:

both are negative so you add them and both a negative sign so the results are negative as well

same sign you add

different sign you subtract

Answer:

Area of five squares = 1289.09 square units

Perimeter =  194.6 units

Step-by-step explanation:

Area of square and perimeter:

   First find the length of each square, then find the area of each square.

To find the area of five squares, add all the area of each square.

Side of square1 = 27 units

\(\sf Side \ of \ square2 = \dfrac{2}{3}*27=2*9 = 18 \ units\\\\Side \ of\ square3= \dfrac{2}{3}*18=2*6=12 \ units\\\\Side \ of \ square4=\dfrac{2}{3}*12=2*4=8 \ units\\\\Side \ of \ square5=\dfrac{2}{3}*8=\dfrac{16}{3}=5.3 \ units\)

Area of square1 = 27*27 = 729 square units

Area of square2 = 18*18 = 324 square units

Area of square3 = 12*12 = 144 square units

Area of square4 = 8*8 = 64 square units

Area of square5 = 5.3*5.3 = 28.09 square units

Area of five squares = 729 + 324 + 144 + 64 +28.09

                                  = 1289.09 square units

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Perimeter of the composite figure = (27 + 27+27+9) + (18+18+6) +(12+12+4) + (8+8+2.7)+ (5.3+5.3+5.3)

                                                         = 90 + 42 + 28 + 18.7 + 15.9

                                                          = 194.6 units

Answer:

11/16 :)

Step-by-step explanation:

Answer:

58

Step-by-step explanation:

It is the middle point/dot

in the box with the line

Answer:

The Formula F=1.8C+32 gives the temperature in degrees Celsius (C). There is one temperature for which a number of degrees Fahrenheit is equal to the number of degrees Celsius.

Step-by-step explanation:

20ºC = 68ºF i think this is equation.;-;

Answer:

The answer is D.

Step-by-step explanation:

y = mx + b

C = 5/9 (F - 32)

C = 5/9F - 5/9 (32)

Option (D) is correct.

Answer:

r = 1

Step-by-step explanation:

The equation is,

→ 6r - 1 + 6r = 11

Now the value of r will be,

→ 6r - 1 + 6r = 11

→ 12r = 11 + 1

→ r = 12/12

→ [ r = 1 ]

Hence, the value of r is 1.

Answer:

The answer is 1 r is equal to 1

Step-by-step explanation:

Answer:

17,792.3792

Step-by-step explanation:

you times each number for example in this case 2 times 6 ,2 times 5 ,times 4,2,3 then do the exact with the other numbers on a different row then add a zero every time you go to the next row after add everything together and you get your answer

Answer:

x=5

Step-by-step explanation:

step1: subtraction 7 from both sides (from 7 itself and 22)

step 2: divide both sides by 3

3x +7 =22

     -7 =-7

     3x=15

3x/3 = 25/3

   x=5

Answer:

23/14 or 1.642857143

Step-by-step explanation:

we know that

A=lxb

= 5 3/4 divided by 3 1/2

= 23/4 divided by 7/2

= 23/4 x 2/7

= 23/2 x 1/7

= 23/14

     or

= 1.642857143

please mark as brainliest

Answer:

11/12

Step-by-step explanation:

To divide a mixed number by a whole number, we first need to convert the mixed number to an improper fraction. To do this, we multiply the whole number by the denominator of the fraction and add the result to the numerator. So, for 2 3/4:2 3/4 = (2 × 4 + 3)/4 = 11/4Now, we can divide 11/4 by 3:11/4 ÷ 3 = 11/4 × 1/3 (dividing by 3 is the same as multiplying by 1/3)

= 11/12

Answer:  C

Step-by-step explanation:

An equation will always contain an equals sign (like this =) and inequalities will always contain a > or <.

Answer:

y-3=-2(x+0)

Step-by-step explanation:

Answer:  see below

Step-by-step explanation:

Use the slope (m) formula: \(m=\dfrac{y_2-y_1}{x_2-x_1}\)

Let (x₂, y₂) = (2, -1) and (x₁, y₁) = (0, 3)

\(m=\dfrac{-1-3}{2-0}=\dfrac{-4}{2}=-2\)

Use the Point-Slope form y - y₁ = m(x - x₁) where m = -2 & (x₁, y₁) = (0, 3):

y - 3 = -2(x - 0)      -->    y - 3 = -2x

Use the Point-Slope form y - y₁ = m(x - x₁) where m = -2 & (x₁, y₁) = (2, -1):

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

Answer: I believe... -17.

Follow the order of operation. PEMDAS....

1+1 x 2 - (2+3) / 2 x 8.

First add up the 2 and the 3 because they're in parenthesis.

1+1 x 2 - (5) / 2 x 8

The multiply the numbers...

1+2 - 5/2 x  8

Multiply the 5/2 and 8 together.

1+2 -20

Add up the 1 and the 2

3-20

Subtract,

-17

So the answer is -17

Answer:

Step-by-step explanation:

y = mx + b

0 = 300,10 + 240 =550  

Answer:

c

Step-by-step explanation:

Answer:

y = 1.3x + 10

Step-by-step explanation:

the exponent without the variable 10 is the y-intercept on a chart x will always be 0 at this point.

subtract 16.5 to 10

16.5 - 10 = 6.5

divide 6.5 by 5

6.5 / 5 = 1.3

x = 1.3

y = 1.3x + (y intercept)

y = 1.3x + 10

Answer:

I think the answer is 8

Step-by-step explanation:

The answer should be 5 hours.