On each of 3 days Derrick rode 6.45 km to school 150 meters to the library and then 500 m back home how many km did he ride for the three days all together

Answers

Answer 1

Derrick rode 21 total km.

You can find this by adding the 3 distances together and multiplying by 3. Also remember to watch the units as 500m = .5km.

Related Questions

I will fan and medal!!! PLEASE
A gray-scale digital camera with 1,000,000 pixels takes a picture (the picture is made of 1,000,000 parts and each part has a certain amount of gray). A histogram is made where the data is the amount of gray in each of these parts. The histogram looks bell-shaped with a mean of 125 gray levels and a standard deviation of 15.

How many pixels are brighter than 163 gray levels?

5000
10,000
160,000
50,000

Answers

To find the number of pixels brighter than 163 gray levels in a digital camera histogram, calculate the Z-score and use it to determine the percentage of values above that score, resulting in 160,000 pixels.

A gray-scale digital camera with 1,000,000 pixels has a histogram with a mean of 125 and standard deviation of 15 gray levels. To find the number of pixels brighter than 163 gray levels, first calculate the Z-score for 163: Z = (163 - 125) / 15. Then, use a Z-table or calculator to find the percentage of values above this Z-score, which corresponds to the number of pixels brighter than 163.

The answer to the question is 160,000 pixels brighter than 163 gray levels.

Please help with 2 questions thank you.

Answers

1) m∠1 = 360°/8 = 45° . . . . . a regular octagon is 8-way rotationally symmetrical, so each sector is 1/8 of a circle.

2) m∠2 = (180° -45°)/2 = 67.5° . . . . . . the angles of a triangle add to 180°. The base angles of an isosceles triangle are equal.

The hypotenuse of a right triangle is 6 inches. if one of the legs is 2 inches, find the degree measure of each angle

Answers

a and b are the 2 smaller sides, and c = hypotenus; only for right triangles,
Pythagorean Theorem states that:
[tex] {c}^{2} = {a}^{2} + {b}^{2} [/tex]
given c = 6 in., a = 2 in.
[tex] {c}^{2} = {a}^{2} + {b}^{2} \\ {6}^{2} = {2}^{2} + {b}^{2} \\ {b}^{2} = {6}^{2} - {2}^{2} = 36 - 4 \\ \sqrt{ {b}^{2} } = \sqrt{36 - 4} = \sqrt{32} [/tex]
[tex]b = \sqrt{32} = \sqrt{16} \times \sqrt{2} = 4 \sqrt{2} \\ b = 5.66 \: inches[/tex]
So the three side are 2, 6, and 5.66 inches

Answer:

(square root) 30

Step-by-step explanation:

I don't know if that's right I'm taking this test right now it might be wrong sorry if its wrong lol

What is a possible value for the missing term of the Geometric sequence. 50_450

Answers

Let the missing number be x
r= x/50= 450/x
x^2 = 22500
x = 150

Answer: The missing term of the Geometric sequence can be 150.

Step-by-step explanation:

Let the missing number is x,

Hence, the G.P. will,

50, x, 450

Since, the consecutive element of G.P. are in same ratio,

[tex]\implies \frac{x}{50}= \frac{450}{x}[/tex]

[tex]\implies x^2 = 50\times 450 = 22500[/tex]

[tex]\implies x = 150[/tex]

Thus, the missing term of the Geometric sequence can be 150.

Jake is in the stands at a football game with his girlfriend Diane. He decides that he needs to ask Diane a serious question, so he brings her to a quiet lounge in the stadium complex. What type of context has Jake changed?

A. the cultural context
B. the social-psychological context
C. the temporal context,

Answers

Jake has opted for the social psychological context. Jake has a serious question for Diane and he wants to take her to a quiet and pleasant surrounding in order to answer the question. One might think that Jake is going to ask Diane to marry him. Yet that would be jumping to conclusions, which is something that is difficult at times. One doesn't know the question and it can't be inferred. He simply wants to ask her something removed from crowded bleachers with cheering fans.

Jake has shifted the (B) social-psychological context by moving to a quieter, more private space in the stadium to ask Diane a serious question, which changes the norms and atmosphere to match the situation's gravity.

Jake has changed the social-psychological context by moving from the stands to a quiet lounge. The social-psychological dimension of context includes status relationships among participants, roles, norms of the society or group, and the overall atmosphere like friendliness, formality, or gravity of the situation. By choosing to ask Diane a serious question in a quieter, more private environment, Jake is altering the norms and atmosphere to better suit the gravity of the conversation he intends to have, thus changing the social-psychological context.

How many solutions does the equation sin(4x)=1/2 have on the interval (0,2pi)?

Answers

8 I believe let me know if I am wrong

Answer:

2 solutions

Step-by-step explanation:

Given the equation sin(4x)=1/2, to know the total number of solutions that the equation has within the interval (0,2π), we will need to solve for x first.

sin(4x)=1/2

4x = arcsin1/2

4x = 30°

x = 30/4

x1 = 7.5° (This angle lies in the first quadrant)

Since sine is positive in the second quadrant as well and the angle in the second quadrant is (180°-theta) where theta is 7.5°, therefore;

x2 = 180-7.5°

x2 = 172.5°

Therefore 7.5° and 172.5° are the two solutions of x that falls within the range (0,2π)

Describe the trend in the scatter plot.

not enough information because the trend line is unclear

positive correlation

no correlation

negative correlation

Answers

The correct answer is C. no correlation

Answer:

No correlation.

Step-by-step explanation:

A Scatter (XY) Plot has points that show the relationship between two variables.

Scatter plots use a collection of points placed using Cartesian coordinates to show values of two variables. By showing a variable on each axis, it can be detected if there is a relationship or correlation between the two variables.

Several types of correlation can be interpreted through the patterns shown in the scatter diagrams. These are: positive (values increase together), negative (one value decreases as the other increases), null (no correlation).

In the case presented, it can be clearly seen that the variables have no correlation, because the trend is not that the points form a straight line, but that there is too much dispersion.

So, the answer is:

No correlation.

Hope this helps!

State whether the relationship between the variables in the table is a direct variation, an inverse variation, or neither. If it is a direct or inverse variation, write a function to model it.
x=3,9,13,20
y=9,27,39,60

I know it's direct but how do I write a function model to it?,

Answers

The variation is a direct variation, and the function to model it is y = 3x

From the table, we can see that:

The y values are calculated by multiplying the corresponding x values by 3

Take for instance;

When x = 3, y = 9

When x = 9, y = 27

Using the above pattern, the function to model the table is y = 3x

Read more about direct variations at:

https://brainly.com/question/6499629

Answer:

B. Neither

Step-by-step explanation:

-21 - 7x = 8x + 24 How do you solve this?

Answers

-21 - 7x = 8x + 24
add 21 to both sides

-7x= 8x + 45
subtract 8x from both sides

-15x= 45
divide both sides by -15

x= -3

Hope this helps! :)

PLEASE HELPME QUICKLY QUICK

Answers

Okay. So no more than 660 minutes will be spent cutting the lawn. The sign will be less than or equal to. A and D are out, because those show greater than or equal to symbols, which is not what we're looking for. x represents the number of lawns mowed, which is an average of 40 minutes, and he will have done 110 minutes. The equation is 40x + 110 ≤ 660. The answer is C.

Hurry please I need the answer right away soo send me math work answers my friend said it's 42? Is it right

Answers

1/2*12*7=1/2*84=42

Hope i helped :)

sin A=0.7245
A=

sin D=0.4567
D=

Answers

The simplest way would be to use a calculator to evaluate B = arcsin(0.7245)

If you don't have a calculator, the next, more complex way would be to interpolate a table of sines and find the value of the angle whose sine is 0.7245. That is the method that was most widely used before the invention of hand held calculators and after sine tables had been published.

The next, most complex way would be to evaluate terms in the infinite series representation of the arcsine function which is the way the sine tables were developed for publication. That series is
arcsin(x) = x + x³/6 + (3/40)x^5 + (15/336)x^7 + ...

The result for any of those methods would be B = 46.4°

Geometrically, you could:
1) Draw a circle of known radius, R. centered at the origin of a rectangular coordinate system
2) Draw a line parallel to the x axis a distance 0.7245R above the x-axis
3) Draw a line connecting the origin to the rightmost point of intersection between the circle 1) and the line 2).
4) Measure the angle between the line 3) and the +x axis.

The Angle 4) will be the measure of the angle whose sine is 0.7245.

That explains four ways you can find the measure of the angle whose sine is 0.7245.

what is the factored form of 3c²+24c+48 ?

Answers

1st step factor 3 out of each number in the equation to get:

3(c^2+8c+16)

16 can be rewritten as 4^2 to get:
3(c^2+8c+4^2)

4+4 = 8 ( the middle number)

so the factor would be 3(c+4)^2

The value of x is
PLEASE ANSWER FAST IM IN THE MIDDLE OF A TEST

Answers

The value of the exterior angle next to a triangle is equal to the sum of two angles of the triangle, opposite of the interior angle. In this case: Angle QRT is equal to the sum of angle RTS and angle RST. So if we put that into an equation it will look like this:

9x = 5x + (9 + x)
Now we can solve for x.
9x = 5x + 9 + x
9x = 6x + 9 (Combine like terms)
9x - 6x = 9 (transpose)
3x = 9
3x/3 = 9/3

x = 3

25, 8, 10, 35, 5, 45, 40, 30, 20 What is the upper quartile of the data set above?A.35
B. 37.5
C. 37
D. 40,

Answers

An upper quartile is the range of numbers above the median in a set. Thus, the numbers have to be rearranged mentally or on paper. Fortunately, there are an odd set of numbers, so one number, 25, is the median. The upper quartile is 30, 35, 40, 45.

What’s 100-((10x7)+(5x7-5)

Answers

100-70+30=60 hope this helps. Answer is 60. Oh wait, if that's an extra bracket, it could be 100-(70+30)=0

Answer:

the answer 60

Step-by-step explanation:

First I did 10x7 which equals 70, Second I did 5x7 which equals 35 and then subtracted 5 to get 30, Third I did 100-70 to get 30 and than I did 30+30 to get 60.

The main tank at an aquarium is a cylinder with a diameter of 203 ft and a height of 4 ft. What is its approximate volume? Use 3.14 for π. a. 129,400 ft3 b. 79,830 ft3 c. 236,560 ft3 d. 32,366 ft3

Answers

V=pi *r^2* h
diameter d= 2r=203
r=203/2=101.50
h=4
V=3.14 * 4 * (101.50)^2
V=129,400 ft^3

Answer: [tex]a.\ 129,400\ ft^3[/tex]

Step-by-step explanation:

The volume of a cylinder is given by:-

[tex]\text{Volume}=\pi r^2h[/tex]

Given: The diameter of cylinder = 203 ft.

Then the radius of the cylinder =[tex]\dfrac{203}{2}[/tex] ft.

The height of the cylinder = 4 ft.

Now, The volume of cylinder :will be -

[tex]\text{Volume}=(3.14)(\dfrac{203}{2})^2(4)=\\\\\Rightarrow\text{Volume}=129,396.26\approx129,400\ ft^3[/tex]

HELP! Two lines intersect at a point, forming ∠1 , ∠2 , ∠3 , and ∠4 .

∠1 and ∠3 are vertical angles.

∠2 and ∠4 are vertical angles.

m∠1=70°

What is the measure of ∠2 ?

Answers

Answer: 110 degrees

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

Angle 2 is supplementary with angle 1, as they form a straight angle
This means the two angles add to 180 degrees

(angle 1) + (angle 2) = 180
(70) + (angle 2) = 180
angle 2 = 180 - 70
angle 2 = 110 degrees

Please help! How many ways can a cook arrange 7 or 10 spice jars on a spice rack?

A. 720
B. 604,800
C. 5,040
D. 120

Answers

i think its C.or A. Im not sure

A will be your answer

sam decides to build a square garden if the area of the other garden is 9x^2 -24x +16 square feet what is the length of one side of the garden

Answers

9x^2 -24x +16 can be factored into (3x-4)²
the length of each side is 3x-4

One gallon of paint usually covers about 350 square feet. How many square feet will 2.5 gallons cover? Show your work, including labeling your answer with the appropriate units of measure.

Answers

350 sq ft/gal * 2.5 gal = 875 sq ft

Unit rate is the quantity of an amount of something at a rate of one of another quantity.

If 1 gallon covers 350 square feet.

2.5 gallons will cover 875 square feet.

What is a unit rate?

It is the quantity of an amount of something at a rate of one of another quantity.

Example:

A man can walk 8 miles in 2 hour

In one hour, the man can walk for 4 miles

We have,

One gallon covers 350 square feet.

This can be written as:

1 gallon = 350 square feet

Multiply both sides by 2.5.

2.5 x 1 gallon = 2.5 x 350 square feet

2.5 gallons = 875 square feet

Thus,

If 1 gallon covers 350 square feet.

2.5 gallons will cover 875 square feet.

Learn more about unit rates here:

https://brainly.com/question/11258929

#SPJ5

The area of a rectangle is 10r (squared) − 11r − 6. The width is 2r − 3. What is the length?

Answers

10r^2 − 11r − 6 = (2r - 3)(5r +2)
so
A = (2r - 3)(5r +2)
as you know A = L * W
if width = (2r - 3) then length = (5r +2)

answer
length = (5r +2)

The length of the rectangle whose area is (10r² − 11r − 6) and the width is (2r−3) is (5r+2).

What is a rectangle?

A parallelogram in which adjacent sides are perpendicular to each other is called a rectangle. A rectangle is always a parallelogram and a quadrilateral but reverse statement may or may not be true.

Area of rectangel = Length × Width

Given that the area of a rectangle is 10r² − 11r − 6, while the width is 2r − 3. Therefore, it can be writen as,

[tex]\text{Area = Length}\times\text{Width}\\\\10r^2 - 11r - 6 = \text{Length} \times (2r - 3)\\\\\text{Length} = \dfrac{10r^2 - 11r - 6}{2r-3}\\\\\text{Length} = 5r+2[/tex]

Hence, the length of the rectangle is (5r+2).

Learn more about Rectangle:

https://brainly.com/question/15019502

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Please help ASAP! 16 points

Answers

The y-intercept is 28, while the slope is
[tex] - \frac{9}{2} [/tex]
I did this by moving the x to left, then dividing everything by 4.

Can not figure out the slope but the Y-intercept is 28

MEDAL
True or false

The coefficient of x^k y^n-k in the expansion of (x+y)^n equals (n-k / k),

Answers

The statement The coefficient of x^k y^n-k in the expansion of (x+y)^n equals (n-k / k) is true. This will show the standard formula and the expansion of it. We all know that it can still be expanded based on the power or degree of the terms.

Answer: the answer is FALSE. Just took this on a p e x

Step-by-step explanation:

The Smiths were just approved for a 25 year mortgage at an 11% fixed rate. If they had not filed bankruptcy in the past, they could have gotten a rate of 7%. If their loan amount is $128,000, how much more per month will the Smiths be paying for their mortgage as a result of their bankruptcy? a. $349.86 b. $125,840.78 c. $904.68 d. $235.09

Answers

To answer the problem, the amortization formula will be of great help. The formula is as follows:

A = P × ((r(1+r)ⁿ)/((1+r)ⁿ-1))
A = is the amortization
P = is the principal
r = is the rate
n = is the period

1. Compute for the amortization using the 11% interest rate.

A = $128000 × ((0.11(1.11)²⁵)/((1.11)²⁵-1))
= $1,254.54
*if solve manually, the answer should be divided by 12 because it was on a monthly basis.

2. Compute for the amortization using the 7% interest rate.

A = $128000 × ((0.07(1.07)²⁵)/((1.07)²⁵-1))
= $904.68
*if solve manually, the answer should be divided by 12 because it was on a monthly basis.

3. Thus, the increase in monthly amortization as a result of higher interest rate is $349.86.

so your answer is A ;)

Divide a six-sided polygon into triangles to find the sum of its interior angles.

A.360 degrees
B. 900 degrees
C. 1080 degrees.
D. 720 degrees

Answers

the answer is C. 1080. i got this by multiplying 180 by 6.

Hello, the answer would be C. 1080. Hope this helps you, i am a geometry teacher.

Three-fourths of an inch on a map equals 750 miles. what would one inch equal?

Answers

Final answer:

One inch on the map is equal to 1000 miles.

Explanation:

To find what one inch would equal on the map, we can set up a proportion using the given information. We know that three-fourths of an inch on the map equals 750 miles. Therefore, the proportion would be: 3/4 inch = 750 miles. To find what one inch would equal, we can cross multiply and solve for the missing value:

3/4 inch * 1 inch = 750 miles * 1 inch

Simplifying, we get: 3/4 = 750 miles * 1 inch

Dividing both sides by 3/4, we get: 1 inch = (750 miles * 1 inch) / (3/4)

Simplifying further, we find that one inch on the map is equal to 1000 miles.

(ab - 9)(ab + 8) Please help

Answers

Use FOIL. :)

(ab - 9)(ab + 8)
ab^2 + 8ab - 9ab + 72
Simplify:
ab^2 - ab - 72

a^2 b^2 + 8ab - 9ab - 72
a^2 b^2 + (8ab - 9ab) - 72
[tex] a^{2} [/tex] [tex] b^{2} [/tex] - ab - 72

-Love, live, and watch anime.

You have 20 shirts in your closet. 4 blue, 7 red, 3 green and 6 black. You pick one without looking. What is the probability that you pick a blue or black shirt?

Answers

50% /// because if it is blue+black (6+4=10) and the leftovers 3+7=10 and if there is 20 shirts and its 10 and 10 its half so half is 50%

Please help with this one question thanks!

Answers

A 240 is the correct answer

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