All Questions ⁺⁰192036 Questions

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58

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geo prob

Given a triangle \(ABC\), consider the bisector of \(\measuredangle A\) which intersects \(BC\) at the point \(D\).
If \(CD + AC = 12\text{ cm}\) and \(CD = \dfrac{BC}{3}\), What is the perimeter of the triangle (in \(\text{cm}\))?
read more ..

Guest Jan 13, 2021

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329

1

asg

What is the least positive integer divisible by each of 1, 3, 5 and 7?

Guest Jan 13, 2021

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90

1

what is 1 4/9 divided by 1 5/8???

what is 1 4/9 divided by 1 5/8???

Guest Jan 13, 2021

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64

1

number theory

Suppose that x, y, z are positive integers, and such that the product of all three numbers is twice their sum plus one. Find all solutions.

Guest Jan 13, 2021

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82

1

+112

ASAP

Use the product-to-sum (NOT SUM-TO-PRODUCT) formulas to write the given expression as a product.

A. read more ..

SpaceModo Jan 13, 2021

+1

100

1

probability

On each of the first three days of January, there is a 1/2 chance that it will snow where Bob lives. On each of the next four days, there is a 1/3 chance that it will snow. What is the probability that it snows at least once during the first week of January? read more ..

Guest Jan 13, 2021

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75

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math

Xavier earned a score of 475 on Exam A that had a mean of 550 and a standard deviation of 25. He is about to take Exam B that has a mean of 550 and a standard deviation of 100. How well must Xavier score on Exam B in order to do equivalently well as he read more ..

Guest Jan 13, 2021

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69

1

coordinates

The points (2,3) and (3,2) lie on a circle whose center is on the x-axis. What is the radius of the circle?

Guest Jan 13, 2021

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98

3

Can i have some help please?

In the equation $\frac{1}{j} + \frac{1}{k} = \frac{1}{3}$, both $j$ and $k$ are positive integers. What is the sum of all possible values for $k$?

Guest Jan 13, 2021

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75

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probability

Heather and Isabelle play a two-person game which is won by the first person to accumulate 10 points. At each turn Heather gains a point with probability of 2/3. If she doesn't get a point then Isabelle gets a point. Isabelle is now ahead 8 to 6. What is read more ..

Guest Jan 13, 2021

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67

1

coordinates

What is the slope of the line containing the midpoint of the segment with endpoints at (2,4) and (0,2), and the midpoint of the segment with endpoints at (5,1) and (1,-5)? Express your answer in simplest form.

Guest Jan 13, 2021

+1

140

3

+1195

Valentina is investigating potential relationships between hybrid car ownership and the gender of the owner.

Valentina is investigating potential relationships between hybrid car ownership and the gender of the owner. Assume a survey of 100 persons revealed:
The probability of selecting a person who does not own a hybrid car is 0.315. read more ..

GAMEMASTERX40 Jan 13, 2021

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66

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s (1 -5) (3 1) (-5 4) (4 -2) a function

s (1 -5) (3 1) (-5 4) (4 -2) a function

Guest Jan 13, 2021

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76

1

line

For what value of k does the line represented by the equation 1 + ky = 3y contain the point (4,3)?

Guest Jan 13, 2021

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75

1

lines

Let P and Q be constants. The graphs of the lines x + 5y = 7 and 16x + Py = Q are perpendicular and intersect at the point (8,3). Enter the ordered pair (P,Q).

Guest Jan 13, 2021

0

120

10

Hyperbola and Foci? :(

The graph of \[\frac{x^2}{a^2} + \frac{y^2}{b^2} = 1\]
has its foci at $(0,\pm 4),$
while the graph of \[\frac{x^2}{a^2}-\frac{y^2}{b^2} = 1\]
has its foci at $(\pm 6,0).$ read more ..

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Guest Jan 13, 2021

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94

2

help math

There are 54 chips in a box. Each chip is either small or large. If the number of small chips is greater than the number of large chips by a prime number of chips, what is the least possible number of large chips?

Guest Jan 13, 2021

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80

1

help inequality

\[\dfrac{(8x^3 + 36x^2 + 54x + 27){(x-1)}^2}{(x^3 + 6x^2 + 12x + 8){(x+1)}^2} < 0\]
Find all the possible values of \(x\).

Guest Jan 13, 2021

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105

1

percentage

There are 120 girls and 57 boys in a school. If 5% of the girls leave the school and no new candidates take up admission, what will be the total percentage of boys in the school?

Guest Jan 13, 2021

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71

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sum

Find the sum of all 3-digit numbers 100 + 101 + 102 + ... + 999.

Guest Jan 13, 2021

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98

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another calc question!

Im back, I posted like an hour ago and I have another question

The right hand riemann approximation of $\displaystyle\int_1^3 x^3\,dx$ can take the form of P(n)/n^2 for a polynomial P, find P(n)

Guest Jan 13, 2021

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