Anna runs a 5k in 20 minutes. What is her speed in kilometers per hour?

Answers

Answer 1

Answer:

15kmh

Step-by-step explanation:

Answer 2

Answer:

15k

Step-by-step explanation:

There is 60 mins in an hour. Since she runs 5k in 20 mins you would multiply 20 by 3 because it would equal 60. Also you would multiply 5k by 3 also.

i hoped that made sense ;-;


Related Questions

Write an equation for the nth term of the arithmetic sequence 56, 48, 40, 32, ....

An equation for the nth term of the arithmetic sequence is an

Answers

Answer:

an = 56-8(n-1)

Step-by-step explanation:

This is an arithmetic sequence

The common difference is 48 - 56 =-8

a1 = 56

an = a1+d(n-1)

an = 56-8(n-1)

The region of integration in the xy-plane for the given integral ∫∫R √(4xy) dy dx, where R is the region bounded by x = 0, x = -3, y = 0, and y = -9 - x^2, can be visualized as a triangular region in the first quadrant.

What is the geometric representation of the given integral?

The given integral is a double integral of the function √(4xy) over a specific region in the xy-plane. To determine the region of integration, we consider the given bounds: x ranges from 0 to -3, and y ranges from 0 to -9 - x^2.

Starting with the x bounds, x = 0 represents the y-axis, while x = -3 represents a vertical line passing through the point (-3, 0). Thus, the region is bounded by the y-axis on the left and the vertical line x = -3 on the right.

Moving on to the y bounds, y = 0 represents the x-axis, while y = -9 - x^2 represents a downward-opening parabola with its vertex at the origin and its axis of symmetry parallel to the y-axis. Since y is negative, the parabola lies below the x-axis.

By combining the x and y bounds, we obtain a triangular region in the first quadrant. The triangle is formed by the x-axis, the line x = -3, and the curve y = -9 - x^2. This region of integration represents the area over which the function √(4xy) is being integrated.

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What is the product of the polynomials below?
(3x^2 - 2x - 3)(5x^2 + 4x + 5)

Answers

Answer:

15x^4+2x^3-8x^2-22x-15

Step-by-step explanation:

Answer:

Your answer is

5x^4+2x^3-8x^2-22x-15

Step-by-step explanation:

I just simplified

I need some help? :(

Answers

Answer:

imposable posable and all the way down like that

Step-by-step explanation:

The diagram shows a prism.
0.5 m
2 m
0.5 m
side elevation
2 m
2 m
front
side
front elevation
Draw the front elevation and the side elevation
of the prism on the grids.
Use a scale of 2 squares to 1 m.​

Answers

Diagrams can be drawn using scale ratios, which can either represent enlargement or compression

The dimensions of the side elevation are given as:

0.5 m, 2 m and 0.5 m

The dimensions of the front elevation are given as:

2 m and 2 m

Using a scale of 2 squares to 1 m, the scaled dimensions become:

Side elevation: 1 square, 4 squares, 1 squareFront elevation: 4 squares and 4 squares

See attachment for illustration of the scaled measurement

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What percent of the students, who have a computer, do not have a phone?

Answers

Answer:

if it was out of all of the data it would be 76 / 300

Help! Please answer the question below!

Answers

Ummm I don’t really know

Please help need it in 1 hour plz help will mark brainleist

Answers

Answer:

I can not see the question

Step-by-step explanation:

What is the equation of the graph below?

On a coordinate plane, a curve goes through (0, 0). It has a maximum of 1 and a minimum of negative 1. It goes through one cycle at StartFraction 2 pi Over 3 EndFraction
y = sine (StartFraction x Over 3 EndFraction)
y = sin(3x)
y = sin(0.3x)
y = sine (StartFraction 2 x Over 3 EndFraction)

Answers

Answer:

B

Step-by-step explanation:

just took the test on edge

By using the given information, the period particularly, we conclude that the function is y = sin(3x).

What equation describes the given graph?

First, we know that:

The function goes through (0, 0).The maximum is 1The minimum is -1

With these 3 considerations, we know that the function is something like:

y = sin(k*x)

So we only need to find the value of k.

We also know that the period of the function is: (2/3)*pi

This means that:

sin(k*(x + (2/3)*pi) = sin(k*x)

Remember that the period of the sine function is 2pi, then:

k*(2/3)*pi = 2pi

k/3 = 1

k = 3

Then the function is:

y = sin(3x).

If you want to learn more about sine functions, you can read:

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The question is in the screenshot attached. Thank you!

Answers

Answer:

Domain: -4 < x < 4

Zeros: (-2, 0), (0, 0) and (2, 0)

The function is positive if: 0 < x < 2

The function is negative if: -4 < x < 0 and 2 < x < 4

Step-by-step explanation:

Domain of the function are those x values where the function is defined, For this case, -4 < x < 4

Zeros of a function are those x values where y = 0, that is, the graph intersect x-axis. For this case, the points are: (-2, 0), (0, 0) and (2, 0)

The function is positive if the graph o the function is above x-axis. For this case, the function is positive at the interval (0, 2)

The function is negative if the graph o the function is below x-axis. For this case, the function is negative at the intervals (-4, 0) and (2, 4)

Amelia has a savings account that has an annual yield of 5.2%. Find the balance of the account after each of the first five years if
her initial balance is $2000.​

Answers

Answer:

Balance of the account after 5 year = $2,577 (Approx)

Step-by-step explanation:

Given:

Initial deposit = $2000

Annual yield (r) = 5.2% = 5.2 / 100 = 0.052

Number of year (n) = 5 year

Find:

Balance of the account after 5 year = ?

Computation:

[tex]Amount = Initial\ deposit(1+r)^n\\\\Amount = 2,000(1+0.052)^5\\\\Amount = 2,000(1.052)^5\\\\Amount = 2,000(1.28848302)\\\\Amount = 2,576.96604[/tex]

Balance of the account after 5 year = $2,577 (Approx)

Lilly found 40 seashells. She
put 10 seashells in each bucket. How many
buckets did Lilly use? Show your work.
--------- buckets

Answers

Answer:

4 buckets

Step-by-step explanation:

40 divided by 10 is 4

Answer:

4 bucket

Step-by-step explanation:

We can either use division or repeated subtraction in this case! Division is easier!

40/10 = 4

4 groups of 10 is what this looks like! (In this case, 4 buckets of 10 seashells)

Suppose matrix D is the inverse of matrix C. Which of the following is equal to D?
O CDD
O CCD
O DDD
O CCC

Answers

Answer is First answer choice: CDD

==========================================

Explanation:

C and D are inverses of each other. When they multiply together, they will produce the identity matrix I

C*D = I

D*C = I

note: this is the uppercase letter 'i' and not the number one. The 'i' stands for 'identity'. Another thing to note is that matrix multiplication is not normally commutative, but it works for matrix inverses.

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

So this means C*D*D = (C*D)*D = (I)*D = I*D = D because multiplying the identity matrix with some matrix X leads to the same matrix X.

This is why the first choice is the answer.

The second choice doesn't work because C*C*D = C*(C*D) = C*(I) = C*I = C

The third choice doesn't work because we don't have any C's here. All we can say is that D*D*D = D^3

Similarly choice 4 doesn't work as all we can say is C*C*C = C^3.

Domain: All real numbers
Domain: 3 > 0
Domain: X < 0
Range: All real numbers
Range: y > 0
Range: y < 0​

Answers

Answer:

Domain: x >0

Range : y < 0

Step-by-step explanation:

Evaluate functions
х
h(x) = 17+
6
h(-18) =

Answers

Answer:-1.277778 i think

Step-by-step explanation:

i think this means h(x) = (17+6)÷x

in which case h(-18) = (17+6)÷(-18) = -1.2777778

would help if you put the question in standard format

Using the triangle below, what is Cos A?

Answers

Answer:

a\b

Step-by-step explanation:

msgsewyjejjhensnsjmsgmyfydnansegnajtwmanae

The answer will be is a/b

Plz help plzzzzzzzzz

Answers

Answer:

47.13cm

Step-by-step explanation:

2×3.142×7.5cm

Answer:

47.13

Step-by-step explanation:

c=2πr

c=2×3.142×7.5cm

c=6.284×7.5cm

c=47.13cm

A cube is a rectangular prism with the same measurement for length, width and height. If a cube is 6
inches tall, what is its volume?

Answers

Answer:

216 inches cubed

Step-by-step explanation:

To find the volume you need length times width times height. Since it is a cube it would be 6 inches * 6 inches * 6 inches which is 216 inches cubed.

Volume of the cube is 216 cubic inch

What is Cube?

A cube is a three-dimensional solid object bounded by six square faces, facets or sides, with three meeting at each vertex

What is Rectangular prism?

A rectangular prism is a 3D figure with 6 rectangular faces

What is Volume?

Volume is a scalar quantity expressing the amount of three-dimensional space enclosed by a closed surface

Given,

A cube is a rectangular prism with the same measurement for length, width and height

Height of the cube h= 6 inches

Length of the cube l= 6 inches

Width of the cube w= 6 inches

Volume of the cube = l× w × h

Volume of the cube = 6×6×6 =216 cubic inch

Hence the volume of  cube is 216  cubic inch

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Math question down below

Answers

The answer is d
Thai is because he is an outlier at 4,1 and that is explains that he eats more vegetables
d because he’s far out, so he at more vegetables

What is the probability of spinning blue on the image shown?
ITS ON THINK THRU MATH NEED HELP

Answers

Answer:

So for the first spinner, the probability of the arrow pointing to blue on a spin is 1/4, the probability of it pointing to green is 1/4 and so on. This assumes that each section is the same physical size.

Step-by-step explanation:

Answer:

Where is the picture

Step-by-step explanation:

4 cm
8.5 cm
What’s the area ?

Answers

Answer:

34 square cm.

Step-by-step explanation:

I am assuming by the number of measurements given that the shape is a rectangle.

[tex]\text {Formula for area of a rectangle: }A = w * l[/tex]

With 4 as the width and 8.5 as the length:

[tex]4*8.5 = 34[/tex]

The rectangle should be [tex]34cm^2.[/tex]

Evaluate (if possible) the six trigonometric functions of the real number t. (if an answer is underfunded, enter UNDEFINED)
T= 4 π/3

Sin t=
Cos t=
Tan t=
Csc t=
Sec t=
Cot t=

Answers

Answer:

Step-by-step explanation:

sin= - square root 3/2                

cos= -1/2

tan= square root 3

csc= -2 square root 3/2

sec= -2

cot= square root3/4

Answer:

[tex]\sin\left(\frac{4\pi}{3}\right)=-\frac{\sqrt{3}}{2}\\\cos\left(\frac{4\pi}{3}\right)=-\frac{1}{2}\\\tan\left(\frac{4\pi}{3}\right)=\sqrt{3}\\\csc\left(\frac{4\pi}{3}\right)=-\frac{2\sqrt{3}}{3}\\\sec\left(\frac{4\pi}{3}\right)=-2\\\cot\left(\frac{4\pi}{3}\right)=\frac{\sqrt{3}}{3}[/tex]

We first find the corresponding angle of 4π/3.

[tex]\frac{4\pi}{3}-\pi=\frac{\pi}{3}[/tex]. And 4π/3 is in the third quadrant. There tan and cot are positive and rest are negative.

[tex]\sin\left(\frac{4\pi}{3}\right)=-\sin\left(\frac{\pi}{3}\right)=-\frac{\sqrt{3}}{2}\\\cos\left(\frac{4\pi}{3}\right)=-\cos\left(\frac{\pi}{3}\right)=-\frac{1}{2}\\\tan\left(\frac{4\pi}{3}\right)=\tan\left(\frac{\pi}{3}\right)=\sqrt{3}\\\csc\left(\frac{4\pi}{3}\right)=-\csc\left(\frac{\pi}{3}\right)=-\frac{2}{\sqrt{3}}=-\frac{2\sqrt{3}}{3}\\\sec\left(\frac{4\pi}{3}\right)=-\sec\left(\frac{\pi}{3}\right)=-2\\\cot\left(\frac{4\pi}{3}\right)=\cot\left(\frac{\pi}{3}\right)=\frac{1}{\sqrt{3}}=\frac{\sqrt{3}}{3}[/tex]

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Please help and explain. Thank you :)

Answers

Answer:

= 6^13

Step-by-step explanation:

6^3 • 6^10

= 6^3 • 6^10

= 6^(3 + 10)

= 6^13

Answer:D

Step-by-step explanation:

A. 6^3 * 6^10 = 6^13

It has the same base so you will make it stay the same and add the exponents.

You can buy 3 apples at the Quick Market for $1.35. You can buy 5 of the same apples at Stop and Save for
$1.00. Which place is the better buy?

Answers

Answer:

stop and save

Step-by-step explanation:

The reason for this is because if you can buy 5 apples for 1 dollar so that is 20 cents each but the other one is 45 cents for 1 apple at quick market

Answer:

stop and save because you can get two additional apples paying only 95 cents

Step-by-step explanation:

3x1.35= 4.05

5x1=5

What are the solutions to the equation 0 = x2 - X-6? Select two options
X=-3
X=-2
Ex=0
x=2
X = 3

Answers

Step-by-step explanation:

x2 - x - 6 = 0

x2 - 3x + 2x - 6 = 0

x(x - 3) + 2(x - 3) = 0

x - 3 = 0. x + 2 = 0

x = 3 x = - 2

Option no 2 and 5 are the correct answer

Corresponding angles of AABC and ADEF are congruent. Does this prove that the triangles are congruent? Justify.

Answers

Answer:

Hi can you please tell of which grade question is this ?

Answer:

C

Step-by-step explanation:

Congruent corresponding angle makes triangle similar. For triangles to be congruent both the corresponding angles and the corresponding sides must be congruent.

please help mee! ill mark you brainliest! pleaseeee& thank qq!

Answers

Answer:172in

Step-by-step explanation:

Answer:

SA=172

Step-by-step explanation:

SA=2lw+2wh+2lh

=2(10)(2)+2(2)(5.5)+2(10)(5.5)

=172

The population of browns burg is 25000. In ten years, it is expected to grow by 8.5%. How many people will live there in ten years?

Answers

25000 x 1.085 = 27125

27125 people will live in Browns burg in ten years.

The population of Gilbert increased 275%. Which of the following are equivalent to 275%?
257
27 1\2

Answers

It’s 27 1/2 which is the 3rd one

The 2 3/4 or 2.75 is equivalent to 275%.

What is Percentage?

The percentage formula is used to calculate the amount or percentage of anything in terms of 100. Percentage indicates "per hundred" in its most basic form. The percentage formula is used to express a number between zero and one. It is a number that is expressed as a fraction of 100. It is represented by the sign% and is mostly used to compare and find ratios.

The population of Gilbert increased by 275%. The equivalent to 275% will be:

To express as fraction and decimal, we divide 275 by 100.

= 275/100

= 2 3/4

= 2 + 0.75

= 2.75

So, the equivalent fraction is 275% = 2 3/4 or 2.75.

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Rounded to the nearest hundredths 27.5=3+5(k-9.5)

Answers

Answer:

12 = k

Step-by-step explanation:

Begin: 27.5 = 3 + 5 (k-9.5)

1. Always begin with the parenthesis, which is 5(k-9.5), which comes out to be 5k - 47.5 since the 5 must be multiplied by the k and the -9.5.

Now: 27.5 = 3 + 5k - 47.5

2. Combine the 3 and -47.5, which comes to be -44.5

Now: 27.5 = -44.5 + 5k

3. Add 44.5 to both sides, to make the right side have only the 5k, and the left side to have 72

27.5 + 44.5 = -44.5 + 44.5 + 5k

Now: 72 = 5k

4. Divide both sides by 5 to be left with just what k equals

72/5 = 5k/5

Final Answer: 12 = k

Which of the following questions describes the equation g + (-4) = -5?

What number, when subtracted from negative four, is equal to negative five?
What number, when added to negative five, is equal to negative four?
What number, when subtracted from negative five, is equal to negative four?
What number, when added to negative four, is equal to negative five?

Answers

Answer:

What number, when added to negative four is equal to negative five.

Step-by-step explanation:

Rearange the numbers to get -4+g=-5.

This eqation now reads -4 plus a number g is equal to -5, and can also be read as what number (g) added to -4 = -5.

If we were to solve for g we would get g= -1.

Hope this helps!

G=-1          so

What number, when added to negative four, is equal to negative five

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