A cyclist sprinter does 1200 J of work in a race. While her bike does 800 J of work
during the race. What is the efficiency of the bike?

Answers

Answer 1

Answer:

66.666666666666666666%

Step-by-step explanation:


Related Questions

Find the area and perimeter pls!!!

Answers

P = a + b + c =4.81 + 8.8 + 8.42 = 22.03

which ordered pair represents the points at which line r and line s intersect?

A. (1.5 , 0.5)
B. (9.375 , 38.75)
C. (12.5 , 23.75)
D. (15, 27.5)

Answers

Answer:

C. (12.5 , 23.75)

Step-by-step explanation:

A test has 25 true/false questions. If 64% of the answers are true, how many of the test questions are true?

Answers

Answer:

16

Step-by-step explanation:

First, let's find 64% of 25. We do this and get:

[tex]\frac{64}{100}\cdot25=\frac{1600}{100}=16. \text{ so our answer is \boxed{16 \text{ problems are true}}}[/tex]

−6 7/8÷(−3 3/4)


Help me pls :{

Answers

67/66 or 1 1/66 would be the answer
11/6
---:
convert both into improper fractions
-55/8 and -15/4
turn both into a positive bc two negatives
then flip 15/4 to 4/15
simplify
11/2 * 1/3 =
11/6
hope this helps

10. Find the slope of the line.

Answers

Answer:

-2/1

Step-by-step explanation:

Answer:

67

Because I just know

Find the distance between (2, 9) & (-1, 4). Round to the nearest tenth.

Answers

Answer:

1.7

Step-by-step explanation:

To find the distance between two coordinates, use the formula [tex]\frac{y_{2} -y_{1}}{x_{2}-x_{1}}[/tex].

y2 = 4, y1 = 9, x2 = -1, x1 = 2

Insert the values into the equation:

[tex]\frac{4-9}{-1-2}[/tex]

Simplify:

[tex]\frac{4-9}{-1-2}= \frac{-5}{-3}=\frac{5}{3}[/tex][tex]\frac{}{} =1.7[/tex]

The distance between (2, 9) and (-1, 4), rounded to the nearest 10th, is 1.7.

Have a nice day!

Plx help me! Brainlist!

Answers

Answer:

Its A. have a good day

Step-by-step explanation:

HURRY!! I need the answer. The assignment closes soon.

Answers

Answer: option 3

Step-by-step explanation:

option 2 is the answer.

On a soccer team there are 5 sixth graders. 9 seventh graders, and eight eighth graders. What percent of the car is sixth graders?​

Answers

Answer:

22.72 %

Step-by-step explanation:

There are 5 sixth graders over a  total of 5+8+9 = 22 students. Therefore the percent of sixth graders would be:

5/22 * 100 ≈ 22.72 %

Help ASAP!!! What do I do!!!

Answers

Answer: 3

Step-by-step explanation:

24/8

Help Please!!!!!!! Solving angle word problems with complementary and supplementary angles

I will give you brainliest and 20 points

Answers

Answer #1:

X= 75

Y= 15

Step-by-step explanation: The first equation is x+y=90 and then your next equation is x=5y. After you have those two equation you sub them in 5y+y=90 and once you solve for y you solve for x.

Por una tubería de 4.02 cm de diámetro circula agua a una velocidad de 1.9 m/s. En
una parte más estrecha el diámetro es de 3.61 cm. ¿Cuál es la velocidad que llevará el
agua en ese punto?Por una tubería de 4.02 cm de diámetro circula agua a una velocidad de 1.9 m/s. En
una parte más estrecha el diámetro es de 3.61 cm. ¿Cuál es la velocidad que llevará el
agua en ese punto?​

Answers

Answer:

7.91

Step-by-step explanation:

I just took the quiz and i got an A


What does the discriminant determine?

Answers

It determines if the solution is equal, less than , or more than zero so if it’s equal you only have one solution but if it’s less than so it’s an imaginary graph that doesn’t have solution or more than means it has more than a solution

Which two operations are needed to write the expression that represent eight more than the product of a number and two

Answers

addition and multiplication
hope this is correct and helps

what is the intersection point of function f and g

Answers

Answer:3,15) and (-1.5, 1.5)

Step-by-step explanation:

If g(x) = 2x² - 3

URGENT find the volume of these rectangular prisms. Round answers to the nearest tenth when necessary

Answers

Answer:

A= 120  

b=200 (if the number on the bottom is a 4 thats cut out)

Step-by-step explanation:

for volume u just multiply the 3 numbers it gives u for the models like for example in the picture u do

6*4*5 in no specific order

if its a triangle and volume or area u do that but at the end divide by 2 in area

PLZ help!! what the answer????

Answers

Answer:

Think you alredy said the answer.

Step-by-step explanation:

solve for x
x^9=12^2x12^7

Answers

Answer:

12

Step-by-step explanation:

Hi!

Here is your answer,

I will explain in step by step,

[tex] {x}^{9} = {12}^{2} \times {12}^{7} [/tex]

Here we can simplify this further using this law,

[tex] {a}^{m} \times {a}^{n} = {a}^{m + n} [/tex]

So we will get,

[tex] {x}^{9} = {12}^{7 + 2} \\ {x}^{9} = {12}^{9} [/tex]

Since the powers are same we can cancel it out and we will get,

[tex]x = 12[/tex]

(Hope this answer helped :))

-6x+5y=1
6x+4y=-10
what is the answer to this problem by elimination

Answers

Answer:

x= -1 and y= -1

Step-by-step explanation:

Answer:

(-1,-1)

Step-by-step explanation:

-6x+5y=1

6x+4y=-10

Add the two equations together to eliminate x

-6x+5y=1

6x+4y=-10

---------------------

9y     = -9

Divide by 9

9y/9 = -9/9

y= -1

Substitute back into one of the equations to find x

-6x+5y=1

-6x +5(-1) = 1

-6x -5 = 1

Add 5 to each side

-6x -5+5 = 1+5

-6x = 6

Divide by -6

-6x/-6 = 6/-6

x = -1

(-1,-1)

Last night, Mandy ate 2/8 of a pizza. Today for lunch, she ate 3/8 of the pizza. What fraction of the pizza is left over? PLEASE I NEED THE ANSWER NOW

Answers

Step-by-step explanation:

its 3/8 because she has eaten 2/8+3/8=5/8 and 8/8-5/8=3/8 is left

What property is being used in 6 x (3+8) = 6 x 3 + 6 x 8?

Answers

Answer:

The distributive property

Step-by-step explanation:

What is the are of the rectangle? L= x-4 W=4x-2 PLEASE ANSWER!​

Answers

The answer is 4x^2-18x+8 because you multiple the length times width

Step-by-step explanation:

✧ [tex] \underline{ \underline{ \large\tt{ P\: R \: O \: V \: I\: D\: E\: D\: }}} : [/tex]

Length ( l ) = x - 4Width ( w ) = 4x - 2

✧ [tex] \underline{ \underline{ \large{ \tt{T\: O \: \: F\: I\: N\: D}}}} : [/tex]

Area of the rectangle

✧ [tex] \underline{ \underline{ \large{ \tt{S \: O \: L\: U\: T \: I \: O\: N}}}} : [/tex]

✑ [tex] \boxed{ \text{Area \: of \: a \: rectangle }= \tt{ \: l \times \: w}}[/tex]

~Plug the values :

⟶ [tex] \large{ \tt{(x - 4)(4x - 2)}}[/tex]

~ To multiply a binomial by a binomial , Firstly use the distributive property to multiply each term of the first binomial by each term of second binomial.

⟶ [tex] \large{ \tt{x(4x - 2) - 4(4x - 2)}}[/tex]

⟶ [tex] \large{ \tt{4 {x}^{2} - 2x - 16x + 8}}[/tex]

~Simplify

⟶ [tex] \large{ \tt{4 {x}^{2} - 18x + 8}}[/tex]

⟿[tex] \boxed{ \boxed{ \underline{ \text{Our \: Final \: Answer } : \underline{ \bold{ \tt{4 {x}^{2} - 18x + 8}}}}}}[/tex]

Hope I helped ! ♡

Have a wonderful day / night ! ツ

❁ [tex] \underline{ \underline{ \mathfrak{Carry \: On \: Learning}}}[/tex] !! ✎

▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁

evaluate the expression if g-=2, r=3, and t=. 3ab+c^2/a

Answers

Answer:

3ab+(c^2)/a

you can't really solve this because g and r is not in the equation.

Is 9/10, 1 1/5, 1 1/2 a right triangle?

Answers

Answer:

using Pythagoras theorem 11/2 is the largest side so let a=9/10 b=11/5 c=11/2

a²+b²=c²

(9/10)²+(11/5)²=(11/2)²

81/100+121/25=121/4

lcm of 25 and 100 =100

(81+484)/100=121/4

565/100=121/4

113/20=121/4

since they are not equal therefore it's not a right angle triangle

can someone please help me with this? I'll mark brainliest for the right answer

Answers

It’s D. When multiplying by -1, you’re changing the signs from addition to subtraction, both inverses of each other.
The answer is D nnnhhhhygggffftyhvjjj

Jake has a bag of 50 beads, some of which are blue and the remaining are green. Jake randomly pulls out a bead from the bag, records the color, and replaces it in the bag. Jake has already recorded 16 blue and 4 green beads. Based on these results, what is most likely the number of blue beads in the bag?

a.10

b.20

c.30

d.40

Answers

Answer:

d

Step-by-step explanation:

Find the volume of the cone. Round your answer to the nearest tenth.
13 ft
10 ft

Answers

Answer:

340

Step-by-step explanation:

340.33 and rounfing off whole number is 340

A square painting has a side length of 13 inches.

What is the area of the painting?

Answers

Answer:

169

Step-by-step explanation:

13*13=169

Answer:

169

Step-by-step explanation:

length x width = area

since it is a square, all sides are equal.

13 x 13 = 169

A toy manufacturer is shipping its newest product, an interactive talking globe, to a major toy store. The packaging for the globe is a rectangular prism that measures 2512 2512 inches high, 18 inches long, and 18 inches wide. The boxes for the globes are packaged into shipping crates that hold 8 globes each. What is the minimum volume of one shipping crate? Explain your answer in the space provided.

Answers

Answer:

6 511 104 in³

Step-by-step explanation:

Since we have 1 crate and 8 boxes fit into one crate.

So, volume of one crate, V' = 8 × volume of 1 box, V

Since the box is a rectangular prism of sides 2512 inches high, 18 inches long, and 18 inches wide, its volume, V = lwh where l = length of prism, h = height of prism and w = width of prism.

So, V = lwh = 18 in × 18 in × 2512 in = 813 888 in³

So, V' = 8 × 813 888 in³ = 6 511 104 in³

So, the minimum volume of the crate is 6 511 104 in³

Engineers are designing a rollercoaster that at one point goes underground. The rollercoaster’s path underground is a large curve. The engineers use the function shown to model the elevation, ܧ ,in feet and ݐ , time, in seconds, of the rollercoaster’s path while it is underground.

Answers

Answer:

One way to solve the quadratic equation x2  = 9 is to subtract 9 from both sides to get one side equal to 0: x2  – 9 = 0. The expression on the left can be factored:

(x + 3)(x – 3) = 0. Using the zero factor property, you know this means x + 3 = 0 or x – 3 = 0, so x = −3 or 3

Step-by-step explanation:

One way to solve the quadratic equation x2  = 9 is to subtract 9 from both sides to get one side equal to 0: x2  – 9 = 0. The expression on the left can be factored:

(x + 3)(x – 3) = 0. Using the zero factor property, you know this means x + 3 = 0 or x – 3 = 0, so x = −3 or 3

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