It used to take Lizzy 11 minutes to run a mile. Now she runs the mile in 8 minutes. What is the percent of increase in her speed? Round to the nearest whole percent

Answer:

b*h/2   120*90/2 10800/2=5400

Step-by-step explanation:

The area of the red triangle with sides A= 90 B=120 and C=150 would be equal to 5400.

The area of the triangle is defined as the product of half the base and the height of the triangle.

The area of the triangle = 1/2 x b x h

It is given that the length of the sides are as A= 90 B=120 C=150.

So, The area of the triangle = 1/2 x b x h

= b x h/2  

= 120 x 90/2

= 10800/2

= 5400

Learn more about triangles;

https://brainly.com/question/7116550

Answer:

excuse me, but how do we answer this? This question is unanswerable without it being a question!

Step-by-step explanation:

Answer:

16 is mean

median is 2

mode is 1

range is 3

Step-by-step explanation:

mean is total added

median is the middle- 1+1

mode- occurs most

and range is the biggest minus smallest #'s

Answer:

-6 x 6= -36+-5= -41

Step-by-step explanation:

Answer:

4 and -9

Step-by-step explanation:

4 * -9 = -36 since 1 negative * 1 positive = a . negative

4 + -9 = -5 since 9 is the larger number the result stays negative

Question: Find the circumference of the circle to the nearest hundredth

d = 11cm

Answer:

34.54 cm

Step-by-step explanation:

Applying,

P = πd...................... Equation 1

Where P = Circumference of perimeter of the circle, d = diameter of the circle, π = pie

From the question

Given: d = 11 cm

Constant: π = 3.14

Substitute these values into equation 1

P = (3.14×11)

P = 34.54 cm

Answer:

c = 24.34

Step-by-step explanation:

Here, we can use the cosine rule

Generally, we have this as:

a^2 = b^2 + c^2 - 2bcCos A

12^2 = 14^2 + c^2 - 2(14)Cos 19

144 = 196 + c^2 - 26.5c

c^2 - 26.5c + 196-144 = 0

c^2 - 26.5c + 52 = 0

We can use the quadratic formula here

and that is;

{-(-26.5) ± √(-26.5)^2 -4(1)(52)}/2

(26.5 + 22.23)/2 or (26.5 - 22.23)/2

24.37 or 2.135

By approximation c = 24.34 will be correct

Answer:

acute

Step-by-step explanation:

Answer:

Complementary angle pair is here working

Answer:

D. 3y + 1

Step-by-step explanation:

Hi there!  

»»————-　★　————-««

I believe your answer is:  

Option D) [tex]3y + 1[/tex]

»»————-　★　————-««  

Here’s why:  

⸻⸻⸻⸻

[tex]\boxed{\text{Breaking The Phrase Down:}}\\-------------\\! - \text{Three times a number 'y'} \rightarrow \text{the product of 3 and y} \rightarrow \boxed {3y}\\! - \text{One more than....}\rightarrow \boxed{ + 1}\\--------------\\\boxed{\text{Putting it all together:}}\\\\!-\text{One more than three times a number 'y'} \rightarrow \boxed{3y+1}\\\\\text{The correct answer should be }\boxed{\text{Option D}}.[/tex]

⸻⸻⸻⸻

»»————-　★　————-««  

Hope this helps you. I apologize if it’s incorrect.  

Answer:

24÷2=12

3.14×12×12=452.16

Answer is 452.16

Answer:

The circle's area above is 452.39 I believe.

Step-by-step explanation:

Use A = pie*r^2 and d = 2 * r to solve this problem.

A = 1/4*pie*d^2 = 1/4*pie*24^2 = 452.38

Round and you have the area of the circle: 452.39

Step-by-step explanation:

In,

Question 2 I have already answered,

Q. 3)

[tex] \frac{ {c}^{2} }{d} [/tex]

Given values:-

c = 6 , d = 3

By putting the values in the question,

[tex] \frac{ {6}^{2} }{3} [/tex]

[tex] = \frac{36}{3} [/tex]

= 12 (Ans)

Answer:

Mean: 12.6

Median: 12

Mode: None

Step-by-step explanation:

To find the mode, add everything up.

12 + 9 + 17 +15 + 10 = 63. Then, divide by five.

63 ÷ 5 = 12.6

To find the median, put the numbers from least to greatest. Then, highlight the one in the middle.

9, 10, 12, 15, 17

To find the mode, look for the number that appears the most. Because each number appears once. So, put "none" in the box.

Have a wonderful day!

Answer:

Unit rate

Step-by-step explanation:

Answer:

x would equal 40

Step-by-step explanation:

x+(2x-5)+(x+25)=180

4x+20=180

x=40

Answer:

50

Step-by-step explanation:

m3 and m4 are going to be equaivalent due to some law I don't remember the name of.

So, 3x-16 = x+84

(do some rearranging)

2x=100

x=50

Answer:

that would be 1

Step-by-step explanation:

in this equation x=74 and 74/74 equals one

Answer:

y = 2x – 1

Step-by-step explanation:

i got a 100%

Answer:

A. y = 2x - 1

Step-by-step explanation:

y = mx + b

Plug in your values. (2 for m)

1 = 2(1) + b

Simplify.

1 = 2 + b

Subtract 2 from both sides.

-1 = b

Finally, form your equation together.

y = 2x - 1

Find completion to question in comment section.

Answer:

D. One of the jellybeans that slipped out was orange and one was black

Step-by-step explanation:

We calculate the option with the highest probability of occurrence :

Total number of jellybean = 75

n(T) =75

n(Pink) = 8

n(red) = 22

n(Orange) = 17

n(green) = 8

n(white) = 6

n(black) = 4

We assume that the jelly beans must have slipped out one after the other.

Evaluating the options :

A.)

P(pink) and P(white)

8/75 * 6/74 = 0.0086486

B.)

P(green) and P(green)

8/75 * 7/74 = 0.0100900

C.)

P(white) and P(white)

6/75 * 5/74 = 0.0054054

D.)

P(orange) and P(black)

17/75 * 4/74 = 0.0122522

From the probability values obtained, the highest is D. Hence, the most likely to have occurred is One of the jellybeans that slipped out was orange and one was black

Answer:

2/21 * (6x-7)

Step-by-step explanation:

1/21 * (3*4x - 14)

1/21* (12x-14)

1/21* 2(6x-7)

2*1/21 * (6x-7)

2/21* (6x-7)

Answer:

4.5

Step-by-step explanation:

Answer:

y = 41°

Step-by-step explanation:

∡ y and 139° are adjacent angles and sum to 180° , that is

∠ 1 + 139° = 180° ( subtract 139° from both sides )

∠ 1 = 41°

Answer:

x= 1/28+y + 11/84

Step-by-step explanation:

Answer:

First choice

Step-by-step explanation:

a is - 2

Open downward

Answer:

first answer choice

Step-by-step explanation:

because in the equation a is less then 0 which makes the parabola open downward

also if ur struggling just search up Desmos that calculator is going to save ur life

Answer:

C... 3

Step-by-step explanation:

Answer:

$63.55

Step-by-step explanation:

if one of the adults has a free coupon for adult admission, then we have 5 adults

8.20 x 5 = $41

We have 6 children and one with half pay

= (5 x 4.1) + (4.1/2 )

= 20.5 + 2.05

=$22.55

41 + 22.55 = $63.55

Answer:

The area of the shaded region is 11.606 square centimeters.

Step-by-step explanation:

The area of the shaded region is obtained by subtracting the area of the triangle from the area of the circular section. The area of the triangle ([tex]A_{t}[/tex]), in square centimeters, can be calculated by the Heron's formula:

[tex]A_{t} = \sqrt{s\cdot (s-a)\cdot (s-b)\cdot (s-c)}[/tex] (1)

[tex]s = \frac{a + b + c}{2}[/tex] (2)

Where:

[tex]a[/tex], [tex]b[/tex], [tex]c[/tex] - Lengths of the sides of the triangle, in centimeters.

[tex]s[/tex] - Semiperimeter, in centimeters.

If we know that [tex]a = 10.50\,cm[/tex] and [tex]b = c = 9.28\,cm[/tex], then the area of the triangle is:

[tex]s = \frac{10.50\,cm + 2\cdot (9.28\,cm)}{2}[/tex]

[tex]s = 14.53\,cm[/tex]

[tex]A_{t} = \sqrt{(14.53\,cm)\cdot (14.53\,cm - 10.50\,cm)\cdot (14.53\,cm - 9.28\,cm)^{2}}[/tex]

[tex]A_{t} \approx 40.174\,cm^{2}[/tex]

And the area of the circular section ([tex]A_{c}[/tex]), in square centimeters, is determined by the following formula:

[tex]A_{c} = \left(\frac{\theta\cdot \pi}{360} \right)\cdot r^{2}[/tex] (3)

Where:

[tex]r[/tex] - Radius of the circle, in centimeters.

[tex]\theta[/tex] - Internal angle, in sexagesimal degrees.

If we know that [tex]r = 9.28\,cm[/tex] and [tex]\theta = 68.9^{\circ}[/tex], then the area of the circular section is:

[tex]A_{c} = \left(\frac{68.9}{360}\right)\cdot \pi\cdot (9.28\,cm)^{2}[/tex]

[tex]A_{c} \approx 51.780\,cm^{2}[/tex]

Finally, the area of the shaded region ([tex]A[/tex]), in square centimeters, is:

[tex]A = A_{c} - A_{t}[/tex] (4)

[tex]A = 51.780\,cm^{2}- 40.174\,cm^{2}[/tex]

[tex]A = 11.606\,cm^{2}[/tex]

The area of the shaded region is 11.606 square centimeters.

Answer:

1

Step-by-step explanation:

y2 - y1/ x2 - x1

3-2/ 5-4 = 1/1 = 1

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-Chetan K