A speed skater skates 1.5 km in 78 s. What is her speed in km/h? Round to the nearest

Answers

Answer 1

Answer:

Step-by-step explanation:

Speed=Distance/Time

1.5/78=0.01923076923

Answer rounded=0.02/0.019


Related Questions

Question Help
X)53 PS 8
Hiker's Elevation
A
3.000
1,500
(다
Hiking The scatter plot shows a hiker's elevation above sea level during a hike
from the base to the top of a mountain. The equation of a trend line for the
hiker's elevation is y = 8.49x + 629, where x represents the number of minutes
and y represents the hiker's elevation in feet. Use the equation of the trend line
to estimate the hiker's elevation after 140 minutes.
0
75 150
Time (minutes)
feet above sea level.
After 140 minutes, the hiker's elevation will be about
(Round to the nearest whole number as needed.)
Enter your answer in the answer box and then click Check Answer
Check A
Clear All

Answers

Answer:

if u divide it then slop  it u will get your answer

Simplify (9^3\6^3)^-1/3 using rational exponents

Answers

the simplified answer is 3
((9^3)/(6^3))^-1/3
((6^3)/(9^3))^1/3
(6^3*1/3)/(9^3*1/3)
(6^1)/(9^1)
6/9=2/3

An engineer designed a valve that will regulate water pressure on an automobile engine. The engineer designed the valve such that it would produce a mean pressure of 7.1 pounds/square inch. It is believed that the valve performs above the specifications. The valve was tested on 24 engines and the mean pressure was 7.3 pounds/square inch with a standard deviation of 1.0. A level of significance of 0.025 will be used. Assume the population distribution is approximately normal. Determine the decision rule for rejecting the null hypothesis. Round your answer to three decimal places.

Answers

Answer:

Step-by-step explanation:

Given that:

Population Mean = 7.1

sample size = 24

Sample mean = 7.3

Standard deviation = 1.0

Level of significance = 0.025

The null hypothesis:

[tex]H_o: \mu = 7.1[/tex]

The alternative hypothesis:

[tex]H_a: \mu > 7.1[/tex]

This test is right-tailed.

[tex]degree \ of \ freedom= n - 1 \\ \\ degree \ of \ freedom = 24 - 1 \\ \\ degree \ of \ freedom = 23[/tex]

Rejection region: at ∝ = 0.025 and df of 23, the critical value of the right-tailed test [tex]t_c = 2.069[/tex]

The test statistics can be computed as:

[tex]t = \dfrac{ \hat X - \mu_o}{\dfrac{s}{\sqrt{n}}}[/tex]

[tex]t = \dfrac{ 7.3-7.1}{\dfrac{1}{\sqrt{24}}}[/tex]

[tex]t = \dfrac{0.2}{0.204}[/tex]

t = 0.980

Decision rule:

Since the calculated value of t is lesser than, i.e t = 0.980 < [tex]t_c = 2.069[/tex], then we do not reject the null hypothesis.

Conclusion:

We conclude that there is insufficient evidence to claim that the population mean is greater than 7.1 at 0.025 level of significance.

The function f(x)= (x– 4)^3
is transformed to g(x)= (x+3)^3– 4
What transformations are performed from function f to function g?
Choose each correct answer.
0 Function f is translated to the left 4 units.
✓ Function f is translated to the left 7 units.
O Function fis translated to the right 7 units.
Function fis translated down 4 units.

Answers

Answer:

Function f(x) is translated left 7 units and down 4 units

(x-4) --> (x+3)

+7 = translation left 7 units

-4 at end affects y (down 4 units)

The transformations are performed from function f to function g is

Function f(x) is translated left 7 units and down 4 units.

What is dilation?

The process of resizing an object is known as dilation. Dilation allows the items to be enlarged or shrunk. This transformation yields a shape that is identical to the source image. The size of the form, on the other hand, varies. A dilatation should either lengthen or shorten the original form. This shift is referred to as the scale factor.

We have function,

f(x) = (x - 4)³

and, g(x) = (x+ 3)³ - 4

Here, we can see the following transformation

(x-4) --> (x+3)

So, here the function translated 7 unit left and 4 units down.

Hence, Function f(x) is translated left 7 units and down 4 units.

Learn more about dilation here:

brainly.com/question/13176891

#SPJ5

I need help with this please help

Answers

Answer:

There are infinitely many solutions

Step-by-step explanation:

Whatever number you plug in you'll get the same answer on both sides

Answer:

i think its infinitely many solutions

explanation; b + 14 = X and X can be anything, therefore theres many solutions

Which of the following eight times the difference of a number and seventeen is thirty

Answers

Answer:

The answer is 24

Step-by-step explanation:

Because 30-17=3 and 3 x 8=24

The keyword difference means subtraction, and the keyword times means multiplication.

Given cos 0 = 3\4 and angle 0 is in Quadrant IV, what is the exact value of sin 0 in
simplest form? Simplify all radicals if needed.

Answers

-sqrt7/4 would be the correct answer with radicals. if you set up the given information for your right triangle in quadrant 4, the right side or the other leg of the triangle would need to be negative, therefore your answer will have a negative sign in front of the sin of theta

Principal ordered 100 pizzas for a total of $1255. Cheese pizza was $11.50 each, and Pepperoni pizza was $13.00 each. Write a system of linear equations that can be used to determine c, the number of cheese pizzas the Principal ordered, and p, the number of pepperoni pizzas the Principal ordered.

Answers

Answer: c+p=100

11.50c+13p=1255

Step-by-step explanation:  Since cheese pizzas cost $11.50 and pepperoni pizzas cost $13.00, then you would plug them into an equation where they equal to the total cost, $1255.

11.50c + 13p = 1255

Monica wants to spend no more than $35.

Answers

Answer:

ayuda necesito

Step-by-step explanation:

PLEASE ANSWER ASAP!!!!!!!!!!!!!!!!!!
Is 5 + 3(1 - x) equivalent to 8 - 8x? EXPLAIN and show your work.

Answers

in the order of operations or PEMDAS you do parentheses first, however you have an unknown value in there so hold off on that, the next in this equation is multiplying, 3•(1-x) or 3-(3x), the final part you have left is 5+3-(3x) 5+3=8 so No it does not, it equals 8 - 3x! hope this helps!!

as
Classify each pair of angles
complementary, supplementary, or neither.

Answers

Answer:

complementary

Step-by-step explanation:

complementary angles add up to 90

60 + 30 = 90

Find the measure of angle 5.

Answers

Answer:

First 5= vertically and 5=7 straight angle

((((((ASAP))))))On Tuesday afternoon at camp, Finn did archery and sailing before dinner. Archery started at 12:10 P.M. Finn spent 1 hour and 25 minutes at archery and 40 minutes sailing. What time did sailing end?

Include A.M. or P.M. in your answer (for example, 11:58 A.M.).

Answers

Answer:

2:15

Step-by-step explanation:

legit just mush it up and add or sum .-.

2:00 P.M i think sorry if it’s wrong I did the math in my head!

Wade was asked to solve this inequality:

\large \frac{x}{3}\ge11

He decides that he needs to multiply both sides by 3. Is this step correct?

Yes, that is the correct step.
No, that is not the correct step.

Answers

Answer:

The correct option is Option A: Yes, that is the correct step

Step-by-step explanation:

Wane was asked to solve the inequality [tex]\large \frac{x}{3}\ge11[/tex]

He decides that he needs to multiply both sides by 3.

We need to tell if the step is correct?

So, solving the inequality

[tex]\frac{x}{3}\ge11[/tex]

We need to multiply both sides by 3, to get value of x i.e.

[tex]\frac{x}{3}*3\ge11*3\\x\geq 33[/tex]

So, Wanes step is correct.

The correct option is Option A: Yes, that is the correct step

Zack counts 12 total stars on a paper. 1/3 of the stars are yellow. How many yellow stars are on the paper?

Answers

Answer:

4 stars

Step-by-step explanation:

4 stars are yellow .

There are 100 performers in a dance recital. The ratio of men to women is 4 : 6. How many performers in the dance recital were men?

Answers

Answer:

40 men

Step-by-step explanation:

100 performers so the total men and women = 100

4 + 6 = 10

100/10 = 10

so 4(10) = 40

Is 8(a+b) and (6a+3b)+2b equivalent

Answers

Answer:

no

Step-by-step explanation:

8a+8b are not equivalent 6a+5b

I need help on this pls help me lol

Answers

Answer:

k = 31

Step-by-step explanation:

17 = (-14) + k

Add 14 to both sides

k = 31

K=31 your welcome buddy

write a story to represent 15÷1/9 Solve the equation and complete and complete the story what multiplication equation shows that your divisions is correct​

Answers

Answer:

7.89473684211

Step-by-step explanation:

goooooood luuuuucccckkkkkk

Answer:

EhM

Step-by-step explanation:

lucy had 15 bottles of dish soap, she gave 1/9 of 15 bottles of dish soap to her friend. How much in fraction form did she have left?

15/1 x 9/1 = 135/1 = 135

PLZ HELP QUICK!! 20pt+

Answers

Q1.

Angle BAD is adjacent to angle CAD

which means they are equal

so angle BAD = 26 degrees


Q2.

Angel BAC = the sum of angles BAD and CAD

because they are adjacent angles

To find the angles we solve the equations

9x-5 = 3x+7

9x-3x = 7+5

6x = 12

x = 12/6

x = 6




Cos G =
5/12
12/13
5/13
12/5

Answers

Answer:

[tex]\boxed {\boxed {\sf cos(G)=\frac{5}{13} }}[/tex]

Step-by-step explanation:

First, recall the trigonometric ratios.

sin(θ)=opposite/hypotenuse cos(θ)= adajcent/hypotenusetan(θ)=opposite/adjacent

The question asks us to find the cosine of G. Therefore, we need the adjacent side and the hypotenuse.

Adjacent: 5 is the side next to angle G (12 is opposite, but we don't need that for cosine).Hypotenuse: 13 is the hypotenuse because it is the largest side and opposite the right angle.

Substitute the values into the ratio.

[tex]cos(G)= \frac{adjacent}{hypotenuse}[/tex]

[tex]cos(G)=\frac{5}{13}[/tex]

This fraction cannot be reduced further, so it is the answer.

The cosine of G is 5/13

does anyone know this i will put you the brainiest if you do


what is the smallest positive integer that is a multiple of 28 and 35 42

Answers

the answer is 420... i-

1.1.37
Let f(x) = x² - 9 and g(x) = x4. Simplify or evaluate the function g(f(u)).
Find g(f(u)). Do not expand your answer.
g(f(u)) =

Answers

64 is the correct answer.

Step-by-step explanation:

Let u represent x.

g[f(u)]

= g(u² - 9)

= (u² - 9)⁴.

The answer is (u² - 9)⁴.

Solve for x.
log₅(x+22)-log₅(x-2)=2

Answers

Answer:

x= 3

Step-by-step explanation:

Using the mileage chart below, find the distance between Rapid City and
Sturgis.
Hot Springs
Sioux Falls
O A. 386 miles
O B. 215 miles
OC. 28 miles
D. 369 miles

Answers

Answer:

28 miles

Step-by-step explanation:

i took the quizz

P is directly proportional to M and inversely proportional to N. If P = 9 when M = 24 and N = 8, find the value of P when M = 5 and N = 6.
Please I need the solvings to this question

Answers

Answer:

2.5

Step-by-step explanation:

P = k*M /N

9 = k * 24/8

9 = k * 3

k = 3

if M=5 and N=6

P = 3 * 5/6 = 5/2 = 2.5

Tell whether (8,36) is a solution of y= 4x + 2.
O yes
O no

Answers

Answer:

yes

Step-by-step explanation:

first you add 8 plus 36 then done

36=4(8)+2
36=32+2
36=34
So no.

And now
AsapSCIENCE presents-
100 digits of π
3.14159, this is π
Followed by 2-6-5-3-5-8-9
Circumference over diameter
7-9, then 3-2-3
OMG! Can't you see?
8-4-6-2-6-4-3
And now we're on a spree
38 and 32, now we're blue
Oh, who knew?
7, 950 and then a two
88 and 41, so much fun
Now a run
9-7-1-6-9-3-9-9
Then 3-7, 51
Half way done!
0-5-8, now don't be late
2-0-9, where's the wine?
7-4, it's on the floor
Then 9-4-4-5-9
2-3-0, we gotta go
7-8, we can't wait
1-6-4-0-6-2-8
We're almost near the end, keep going
62, we're getting through
0-8-9-9, on time
8-6-2-8-0-3-4
There's only a few more!
8-2, then 5-3
42, 11, 7-0 and 67
We're done! Was that fun?
Learning random digits
So that you can brag to your friends

Answers

Answer:

I know another one

Step-by-step explanation:

THERES HYDROIGEN AND HELIUM THEN LITHNIUM BERILIUM BPRON CARBON EVERYWHERE NITROGEN ALL THROUGH THE AIR WITH OXYGEN SO U CAN BREATHE AND FLUORINE FOR UR PRETTY TEETH

D +23 equals 40 evaluate

Answers

Answer:

D=17

Step-by-step explanation:

D+23=40

D+23-23=40-23

D=17

Identify the quadrant or axis that the following point lies on. If the point lies on an axis, specify which part (positive or negative) of which axis (x ory).
(-2,-5)

Answers

Answer:

Quadrant 3! Hope this helps!

Step-by-step explanation:

The x and y are both negative. Meaning that they will lie on quadrant 3 which both axis in this quadrant are negative.

Other Questions
which is larger Ca or Ca2+ Sara is often tired when she wakes up, so she startsdrinking coffee every day at 8:00 am, which makes her feelenergized. One morning she is coming home from thegrocery store she notices the time- it is 8:00 am. She hadnot wanted coffee before she checked the time, but shesuddenly feels tired and craves the drink. Sara's suddencraving for coffee after noticing the time is an example ofwhich behavior? Explain that phenomena in detail. please help only 10 minutes Select the correct location on the image.In pea plants, white seed coat is a recessive trait and gray seed coat is a dominant trait. Which offspring have a white seed coat? write the algebraic expression for: Kim has 7 more than 5 times the amount Sylvia has. WILL GIVE BRAINLEISTWhich graph shows three points that represent equivalent ratios? help pleaseeeee and please dont waste my time by saying that ydk :) ty What value will the color variable have after these lines of code run? Mina says triangle A with anglesmeasuring 34 and 57 is similar totriangle B with angles measuring 57and 89. Is Mina correct? Is 2/3 + 3/8 over 1 or less than 1 if x=2y-5 and z=16y^3, what is z in terms of x Hope you can help me with this problem Makes his heart thump and race 1. Simile2. Hyperbole3. Metaphor4. Personification 5. Onomatopoeia 6. Idiom Quadrilateral ABCD has vertices at A(-3, 3), B(0, 4), C(3, 3),and D(0,2). What word below best describes this quadrilateral? A) SquareB) RectangleC) Parallelogram D) Rhombus name two mediterranean trade routes How many significant figures below?3.7 x 10^-3 LA. 1B. 2C. 3D.4E. 0 14. A Representative Democracy can be described as? 1 pc O Form of government which power is exercised by citizens Form of government in which elected leaders write and manage laws for the country O Form of government where all people directly control laws that govern O Form of Form of government last month 7,364 people visited game world this month 5,858 people visited game world how many total people visited game world Last month and this monthshow your work I REALLY NEED HELPplease please help me answer all please Please help, due tomorrow