All Questions ⁺⁰237784 Questions

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169

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Use two unit multipliers to convert 1000 cm to mm

Use two unit multipliers to convert 1000 cm to mm

Guest Apr 9, 2023

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110

1

+4

Help me please

When (10^5 * 10^77 / (10^15 ) / (10^15)^4 is written as a single integer with no exponents, it is a 1 followed by one or more zeroes. How many zeroes are there?

Ashdog791 Apr 9, 2023

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160

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Counting

Plz help
A standard six-sided die is rolled 7 times. You are told that among the rolls, there was one 1, two 2's, and three 4's. How many possible sequences of rolls could there have been? (For example, 5, 1, 2, 2, read more ..

Guest Apr 9, 2023

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170

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Given 1 mile = 1.6093 km and 1 litre = 0.264 gallons. A car (A) in the USA travels 20 miles and uses 1 gallon of diesel. A car (B) in RSA tr

Given 1 mile = 1.6093 km and 1 litre = 0.264 gallons. A car (A) in the USA travels 20 miles and uses 1 gallon of diesel. A car (B) in RSA travels 300 km and uses 30 litres of diesel. Which information below is least accurate for the trips given? (accurate read more ..

Guest Apr 9, 2023

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133

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Expected value

I need help with these
Suppose we have a bag with 10 slips of paper in it. Eight slips have a 3 on them and the other two have a 5 on them.
(a) What is the expected value of the number shown when we draw a single slip of paper? read more ..

Guest Apr 9, 2023

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133

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geometry

In triangle PQR, M is the midpoint of PQ. Let X be the point on QR such that PX bisects angle QPR, and let the perpendicular bisector of PQ intersect AX at Y. If PQ = 36, PR = 22, QR = 26, and MY = 8, then find the area read more ..

Guest Apr 9, 2023

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138

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sequence

Help how to do this
Cai writes down the list of positive integers, excluding squares and cubes and all perfect powers. His sequence starts
2, 3, 5, 6, 7, 10, 11, ...
What is the 100th term in Cai's list?

Guest Apr 9, 2023

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148

3

+1348

Quick problem

I'd like it if someone could check this problem.
Find all values of c such that 3*(2c + 1) = 28*(3*c) - 9. If you find more than one value of c, then list your values in increasing order, separated by commas.

sandwich Apr 9, 2023

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158

0

+1348

Need help

Can anyone help with this probability question?
In the SuperLottery, three balls are drawn (at random, without replacement) from white balls numbered from 1 to 12, and one SuperBall is drawn (at random) from red balls numbered from read more ..

sandwich Apr 9, 2023

+1

160

2

+5

algebra - quadratics. pls help!! thank you

Let and be real numbers such that a-b=4 and a^3-b^3=52
(a) Find all possible values of ab
(b) Find all possible values of a+b
(c) Find all possible values of and a and b

manilikesmath Apr 9, 2023

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144

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counting

Need help with probability
My sock drawer contains two red socks, two white socks, and two blue socks. For three days in a row, I pull out two socks out of my sock drawer at random. What is the probability that I get matching read more ..

Guest Apr 9, 2023

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149

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Fractions

Levans writes a positive fraction in which the numerator and denominator are integers, and the numerator is 1 greater than the denominator. He then writes several more fractions. To make each new fraction, he increases both the numerator and the denominator read more ..

Guest Apr 9, 2023

0

145

1

counting

I don't get this
Sam wants to color the three sides of an equilateral triangle. He has two different colors to choose from. In how many different ways can Sam color the sides of the triangle? (Two colorings are considered read more ..

Guest Apr 9, 2023

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153

1

how much is 55L in a gallon?

how much is 55L in a gallon?

Guest Apr 9, 2023

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147

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Geometry

Triangle ABC has altitudes AD, BE, and CF. If AD = 12, BE = , and CF is a positive integer, then find the largest possible value of CF.

Guest Apr 9, 2023

+1

124

4

+81

What is the next number in this sequence: ?

What is the next number in this sequence:?

moneydude242 Apr 9, 2023

+1

163

1

counting

Syd chooses two different primes, both of which are greater than and multiplies them. The resulting product is less than How many different products could Syd have ended up with?

Guest Apr 9, 2023

+1

155

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Algebra

We are looking to factor 23x^2 + kx - 5 + x^2 - 3. Some values of k allow us to factor it as a product of linear binomials with integer coefficients. what are all such values of k?

Guest Apr 9, 2023

+1

141

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Counting

In how many ways can three pairs of siblings from different families be seated in two rows of three chairs, if siblings may sit next to each other in the same row, but no child may sit directly in front of their sibling?

Guest Apr 9, 2023

+1

147

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Binomial Theorem

For some real number a and some positive integer n, the first few terms in the expansion of (1 + ax)^n are 1 - 20x + 200x^2 + cx^3 + ...
Find c.

Guest Apr 9, 2023

+1

170

2

In a class, 55% of the students are boys. 60% of the boys and 80% of the girls love singing. What is the percentage of students who love sin

In a class, 55% of the students are boys. 60% of the boys and 80% of the girls love singing. What is the percentage of students who love singing?

Guest Apr 9, 2023

+1

138

0

geometry

Plz help with geometry problem
In the diagram below, PQRS is a parallelogram with a perimeter of 26 and an area of 28. What is the perimeter of rectangle OSTQ? Include an explanation of how you solved the probl read more ..

Guest Apr 9, 2023

+1

137

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geometry

Let ABC be a right triangle, and let H be the point on side AB so that CH is perpendicular to AB. Prove that (x + h)^2*(y + h)^2 = (a + b)^4.

Guest Apr 9, 2023

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