Questions posted in Mathematics

Find an angle between 0 and 360 degrees that is coterminal with 1260 degrees

Answer:

The 180 degrees angle.

Step-by-step explanation:

We can start by dividing 1260 / 360 = 1080. Therefore, a 1080 degrees angle would be coterminal with 360.

Now we take 1260 - 1080, to see how many degrees we have left, this gives us: 180, therefore, the angle between 0 and 360 that is coterminal with 1260 degrees is the 180 degrees angle.

ANSWERED AT 24/01/2020 - 10:54 PM


QUESTION POSTED AT 24/01/2020 - 10:54 PM

Carlos and Maria drove a total of 217 miles in 4.1 hours. Carlos drove the first part of the trip and averaged 52 miles per hour. Maria drove the remainder of the trip and averaged 54 miles per hour. For approximately how many hours did Maria drive? Round your answer to the nearest tenth if necessary

Travel time when Carlos traveled at 52 miles/hr = t1
Travel distance when Carlos traveled at 52 miles/hr = 52 t1

Travel time when Maria traveled at 54 miles/hr = t2
Travel distance when Maria traveled at 54 miles/hr = 54 t2

total time 
t1 + t2 = 4.1 

total distance
52 t1 + 54 t2 = 217

( t1 + t2 = 4.1 ) * 52
52 t1 + 52 t2 = 213.2

Subtract last 2 equations
2 t2 = (217-213.2)
2 t2 = 3.8
t2 = 1.9

t1 = 2.2

Hours Maria driven = 2.2 hours



ANSWERED AT 24/01/2020 - 10:54 PM


QUESTION POSTED AT 24/01/2020 - 10:54 PM

On a saturday,a library checked out 66 books.If 18 of the books were fiction,what what is the ratio of non-Fiction books to fiction books checked out?

We are given with the total number of library books of 66. 18 of these 66 books were classified as fiction while the remaining are non-fiction books. The ratio of non-Fiction to fiction can be determined by first finding out the number of non-fiction books. that is 66-18 or 48 books.The ratio then is 48/18 or 8/3.

ANSWERED AT 24/01/2020 - 10:54 PM


QUESTION POSTED AT 24/01/2020 - 10:54 PM

Micaela le dio 13 figuritas a cada uno de sus 6 compañeros y, cuando termino de repertirlas se quedo con 3 ¿Cuantas figuritas tenia?

Uno dos tres sorry I don't understand

ANSWERED AT 24/01/2020 - 10:53 PM


QUESTION POSTED AT 24/01/2020 - 10:53 PM

PLEASE HELP FAST !!!!! PLEASEEEEEEEE The cost of go-karting is dollars for the first ten laps around the track and dollars for each additional lap. What is the cost, in dollars, of go-karting for 17 laps? (A) + ( × 7) (B) + ( × 7) (C) ( × 10) + (D) 17 + +

you pay x for ten laps an you pay y for every additional lap you just multiply y by seven an add x

so all an all your answer would be (B) 

ANSWERED AT 24/01/2020 - 10:53 PM


QUESTION POSTED AT 24/01/2020 - 10:53 PM

What were the main contours of English colonization in the seventeenth century?

The main contours of English colonization in the seventeenth century was that English colonization was funded by proprietary provinces operating with land grants, or charters, from the English monarchy.

ANSWERED AT 24/01/2020 - 10:53 PM


QUESTION POSTED AT 24/01/2020 - 10:53 PM

Which of the following has the same relationship as circle and cylinder

What are you choices?

ANSWERED AT 24/01/2020 - 10:52 PM


QUESTION POSTED AT 24/01/2020 - 10:52 PM

Antonbought a picnic cooler his total bill with tax was $7.95 he paid 6% sales tax how much did he pay for the cooler alone without the tax

A product increases its value because of the imposition of  tax. For example, a medicine that cost $1 can be bought possibly at $1.4 because of the value added tax. To determine the original bill without tax, the equation is $7.95/1.06. This is equal to $7.5.

ANSWERED AT 24/01/2020 - 10:52 PM


QUESTION POSTED AT 24/01/2020 - 10:52 PM

All swimming equipment is on sale with a 40% discount. A snorkeling set regularly sells for $45. Find the discount.

40% off of 45$ would leave you with 27$

ANSWERED AT 24/01/2020 - 10:52 PM


QUESTION POSTED AT 24/01/2020 - 10:52 PM

Simplify the expression to a single numerical value. 3*2^3*2*3^2 144 432 900 5,184

It is b which is 432

ANSWERED AT 24/01/2020 - 10:52 PM


QUESTION POSTED AT 24/01/2020 - 10:52 PM

Two forces with magnitudes of 100 and 50 pounds act on an object at angles of 50° and 160°, respectively. Find the direction and magnitude of the resultant force

The resultant force is the sum of all forces positioned at different directions and placed in a specific angle. In this case, we can take the short way to answer this problem. we use the calculator and shift the mode to complex to add 100<50 and 50<160. the answer is 95.29<79.54. The magnitude is 95.29 pounds and the angle is 79.54°.

ANSWERED AT 24/01/2020 - 10:51 PM


QUESTION POSTED AT 24/01/2020 - 10:51 PM

Susan wrote the following statements: Statement 1: If two angles form a linear pair, then they are supplementary angles. Statement 2: If two lines intersect in one point, then exactly one plane contains both lines. Which geometry term does each statement represent?

 Statement 1:
Supplementary angles 2 angles whose measures have a sum of 180 degrees.Linear pair  are 2 adjacent angles whose non common sides are opposite rays.
Statement 2:
This statement states that the two lines are perpendicular.

ANSWERED AT 24/01/2020 - 10:51 PM


QUESTION POSTED AT 24/01/2020 - 10:51 PM

What is the gcf of xxyyyzz and xxxxzzz

One has 2 x', the other has 4 
2 x's 

one has 3 y's and the other has none 
no y's 

one has 2 z's and the other has 3 
2 z's 

gfc is xxzz

ANSWERED AT 24/01/2020 - 10:51 PM


QUESTION POSTED AT 24/01/2020 - 10:51 PM

Susan wanted to measure the height of her school’s flagpole. She placed a mirror on the ground 72 feet from the flagpole, then walked backwards until she was able to see the top of the pole in the mirror. Her eyes were 5 feet above the ground and she was 12 feet from the mirror. Using similar triangles find the height of the flagpole to the nearest foot.

The triangle made by Susan, the flagpole and her line of sight is similar to the triangle formed between Susan and the mirror. In this case, using the theorem of similar triangles, the equation is x/(72+12)= 5/12 where x is the height of the pole. The height of the pole is 35 feet.

ANSWERED AT 24/01/2020 - 10:51 PM


QUESTION POSTED AT 24/01/2020 - 10:51 PM

Two forces with magnitudes of 100 and 50 pounds act on an object at angles of 50° and 160°, respectively. Find the direction and magnitude of the resultant force. Round to two decimal places in all intermediate steps and in your final answer.

The resultant force is the sum of all forces positioned at different directions and placed in a specific angle. In this case, we can take the short way to answer this problem. we use the calculator and shift the mode to complex to add 100<50 and 50<160. the answer is 95.29<79.54. The magnitude is 95.29 pounds and the angle is 79.54°.

ANSWERED AT 24/01/2020 - 10:50 PM


QUESTION POSTED AT 24/01/2020 - 10:50 PM

The base of a rectangle has a length of 4 inches and a diagonal has a length of 5 inches, Find the area of the rectangle

Do you happen to know what the width of the rectangle is?
because the formula to find the area of a rectangle is

A=wl
A is the area
w is the width
l is the length

ANSWERED AT 24/01/2020 - 10:50 PM


QUESTION POSTED AT 24/01/2020 - 10:50 PM

Ben is 4 times as old as Ishaan. 6 years ago, Ben was 6 times as old as Ishaan. How old is Ben now?

Ben is 10 years old now.

ANSWERED AT 24/01/2020 - 10:50 PM


QUESTION POSTED AT 24/01/2020 - 10:50 PM

How do you use the formula logbC= logaC/logab for logarithms?

The formula log b C= log a C/ log ab for logarithms can be used for simplifying equations or deriving equations from one to another. This is a common logarithmic expression that can be simplified to solve calculus equations under integral and differential applications, for example.

ANSWERED AT 24/01/2020 - 10:50 PM


QUESTION POSTED AT 24/01/2020 - 10:50 PM

Can you help me solve this equation plzzz ? 5/6x+7=12-5/12x

To find x, the answer of the equation 5 / 6 x+7=12- 5 / 12x, we group the x and the numerics. Hence, the equation becomes 5/6 x -5/12 x = 12-7. we simplify this to 5/12 x = 5. We find x by multiplying 5 to 12 and dividing the product by 5. Hence the answer to this problem is 12.

ANSWERED AT 24/01/2020 - 10:50 PM


QUESTION POSTED AT 24/01/2020 - 10:50 PM

A glass vase is shaped like a cylinder and has a radius of 2.5 inches. The vase holds 170 cubic inches of water. How tall is the vase? Use 3.14 for pi. Round your answer to the nearest hundredth.


volume of a cylinder= πr²h
where r is radius and h is height.

here,
3.14 x 2.5²in x h = 170in²
3.14 x 6.25in x h = 170in²
19.625 x h = 170in²
h = 170in²/19.625
h = 8.66242038...in

corrected to the nearest hundredth, it is 8.66 inches

ANSWERED AT 24/01/2020 - 10:50 PM


QUESTION POSTED AT 24/01/2020 - 10:50 PM

Matt looked at the architectural plan of a room with four walls in which the walls meet each other at right angles. The length of one wall in the plan is 19 inches. The length of the diagonal of the floor of the room in the plan is approximately 20.62 inches. Is the room in the shape of a square? Explain how you determined your answer. Show all your work.

To quickly calculate this problem, we multiply the square root of two to 19 inches and check if the product is equal to 20.62 inches. Square root of two comes from the pythagorean theorem assuming the angle of the corners is 90 degrees. In this case, the answer is 26.87 inches which is greater than 20.62 inches. This means the shape of the room is not a square. 

ANSWERED AT 24/01/2020 - 10:49 PM


QUESTION POSTED AT 24/01/2020 - 10:49 PM

Escriba una exprecion q represente am+m+m+m

The answer is;
Am+m3
Your welcome
I thought no it's right

ANSWERED AT 24/01/2020 - 10:49 PM


QUESTION POSTED AT 24/01/2020 - 10:49 PM

What is the solution to the equation 1/square root 8 = 4(m + 2)?

1/sqrt8 = 4(m+2)

1/sqrt8 = 4m +8

1 = (4m +8)*sqrt8

1 = 4m*sqrt8 +8sqrt8

sqrt8 = 2sqrt2

1 - 16sqrt2 = (8sqrt2)*m

m = (1 - 16sqrt2)/8sqrt2 

m = (1 -16sqrt2)*sqrt2 / (8*2)

m = (sqrt2 -32)/16

hope this will help you 

ANSWERED AT 24/01/2020 - 10:48 PM


QUESTION POSTED AT 24/01/2020 - 10:48 PM

Why is it important to know about trigonometric ratios?

To solve right triangles

ANSWERED AT 24/01/2020 - 10:48 PM


QUESTION POSTED AT 24/01/2020 - 10:48 PM

Round 90% to the thousandth place write as a decimal

The answer is .900, 
.(tens)(hundreds)(thousands)

ANSWERED AT 24/01/2020 - 10:48 PM


QUESTION POSTED AT 24/01/2020 - 10:48 PM

If a cone-shaped water cup holds 23 in.³ has a radius of 1 inch, what is the height of the cup? Use 3.14 for pi. Round your answer to the nearest hundredth.

Volume of the cone is 23 in^3. = (1/3)pi r^2 h.
Given r=1, pi=3.14
so we have
(1/3)(3.14)1^2 h=23
h=23/((1/3)(3.14)1^2)
=21.97
=22 in. (approx.)

ANSWERED AT 24/01/2020 - 10:48 PM


QUESTION POSTED AT 24/01/2020 - 10:48 PM