6,938 Answered Questions for the topic mathematics

Mathematics Math Prealgebra Statistics

05/16/21

Please help with question I really don't understand!

The door prizes at a dance are gift certificates from local merchants. there are four $10 certificates, five $20 certificates, and three $50 certificates. The prize envelopes are mixed together in... more
Mathematics

05/16/21

989is related to 16 then in same way 21 is related to

989is related to 16 then in same way 21 is related toThis is reasoning analogy q
Mathematics Linear Algebra

05/16/21

Subspace proof.

If U and W are subspaces of a vector space V, prove that U intersect W is also a subspace of V. Is the union of V and W a subspace of V?
Mathematics Math Elementary Math

05/15/21

A square shape is divided into two non-overlapping rectangular shapes

A square shape is divided into two non-overlapping rectangular shapes. Each of these two rectangular shapes is divided into three non-overlapping square shapes. Compute the sum of the perimeters of... more
Mathematics Math Algebra 1 Algebra 2

05/15/21

How many cubic meters of water can this pool hold?

Pool: https://ibb.co/XzZdtQGA city is going to build a new swimming pool at the recreation center. Assuming that the pool is 10 feet deep, approximately how many cubic meters of water will this... more
Mathematics

05/15/21

-6x+7y=15 solve with substitution

Mathematics Math Prealgebra Statistics

05/15/21

Q; A pair of dice are rolled 20 times.

A pair of dice are rolled 20 times.Please explain for each variable when you solve.a) What is the probability that double sixes are rolled twice?b) Determine the expected number of double sixes?
Mathematics Math Algebra 1 Prealgebra

05/15/21

Q; The door prizes at a dance are gift certificates from local merchants.

The door prizes at a dance are gift certificates from local merchants. there are four $10 certificates, five $20 certificates, and three $50 certificates. The prize envelopes are mixed together in... more
Mathematics

05/15/21

For a parallelogram with a long side that is 4 times the length of its short side find the area if the height from the long side is 23 and the perimeter is 125.

For a parallelogram with a long side that is 4 times the length of its short side find the area if the height from the long side is 23 and the perimeter is 125.

05/15/21

Pls slove the math

Find the surface area of the region under the curve (x/a)2/3 + (y/a)2/3 =1 by revolving about x-axis.
Mathematics Calculus

05/15/21

pls slove the math step by step

Sketch the graph and find the points on the cardioid r = a(1 +cosθ ) at which tangent lines are horizontal. Also, find its surface area by revolving about initial line.
Mathematics Calculus

05/15/21

pls slove the math step by step.

Describe the graph of the curve y2 - 8x - 6y - 23 = 0 and find the equation axis, tangent at vertex and equation of its directrix.
Mathematics Math Trigonometry Sat Math

05/15/21

Solving a triangle using different formulas

Solve for the triangle (find all angles and sides). PLEASE USE DIFFERENT FORMULAS, NOT ONLY SINE LAW.
Mathematics Math

05/15/21

Answer true or false for each statement. If the statement is false, explain. ) In scientific notation, if the exponent on the 10 is -6, then the number is in the millionths.

 In scientific notation, if the exponent on the 10 is -6, then the number is in the millionths.
Mathematics Math Algebra 1 Algebra 2

05/15/21

Rewrite the expression using exponents.

5 • 3 • 3 • 3​(Type whole​ numbers.)
Mathematics Math Algebra 1 Algebra 2

05/15/21

The distance between two European cities is about 2600 km. Convert this to miles.

2600 km ≈ __ mi(Type an integer or decimal rounded to two decimal places as​ needed.)
Mathematics Math Algebra 1 Algebra 2

05/15/21

The technology output for 1/2^74 is 5.29395592E - 23. Write this number in scientific notation with three significant digits.

The number 1/2^74 written in scientific notation with three significant digits is __.​(Use scientific notation. Use the multiplication symbol in the math palette as​ needed.)
Mathematics Math Algebra 1 Algebra 2

05/15/21

Let I represent the income​ (in millions of​ dollars) for a company.

A company posted a net income loss of ​$12,717 million for the fiscal year 2016.I = __ (million of dollars)(Do not include the​ $ symbol in your​ answer.)
Mathematics Math Algebra 1 Algebra 2

05/15/21

Determine the number of significant digits in the following number.

0.904The number 0.904 has __ significant​ digit(s).(Type a whole number).
Mathematics Math Algebra 1 Algebra 2

05/15/21

For the description​ below, choose a variable name for the given quantity. Give two numbers that the variable can represent and two numbers that it cannot represent.

The height​ (in inches) of a bookcaseWhich of the following would be a proper variable name for the height of a​ bookcase?a. 5b. hc. √5d. πChoose two numbers that the variable for the height​ (in... more
Mathematics Math Calculus Statistics

05/15/21

List the elements in the set.

{x | x is a whole number that is not a natural number​}{__} (Use a comma to separate answers as needed. Use ascending​ order.)
Mathematics Math Algebra 1 Algebra 2

05/15/21

Let s be the annual sales​ (in millions) for a particular electronic item. The value of s is 55.6 for 2005. What does s​ = 55.6 mean in this​ situation?

The given situation means that in the year ___, ___ million of this electronic item were sold.

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