59,603 Answered Questions for the topic Math

Math

11/05/23

i do not know how to solve this
Line ℓ passes through (-2, 5) and (4, -7). Write an equation for the line that passes through (2, 9) and is perpendicularto line ℓ. Leave in slope-intercept form.
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Math

11/05/23

i do not know how to solve this
Line ℓ passes through (-2, 5) and (4, -7). Write an equation for the line that passes through (2, 9) and is perpendicularto line ℓ. Leave in slope-intercept form.
Follows • 1
Expert Answers •1
Math

11/05/23

i do not know how to solve this
Line ℓ passes through (-2, 5) and (4, -7). Write an equation for the line that passes through (2, 9) and is perpendicularto line ℓ. Leave in slope-intercept form.
Follows • 1
Expert Answers •1
Math

11/05/23

i do not know how to solve this
Line ℓ passes through (-2, 5) and (4, -7). Write an equation for the line that passes through (2, 9) and is perpendicularto line ℓ. Leave in slope-intercept form.
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Expert Answers •1
Math

11/05/23

for what values of z does 4-z/4+z = z/z+z+z+z
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11/05/23

calculus urgent help!! i got the answers its wrong pleasse help with detail
A volcanic cone spews fine particles of rock which land in the surrounding area and cause the size of the cone to increase.(a) Suppose that a volcanologist takes measurements that show that when... more
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Math

11/05/23

Consider the funciton f given by f(t)=log49(t7). Find values for a and b such that f(t)=a+logb(t). a= . b= 49 .
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11/05/23

pleaseee help!!. Calculus!!!...
A large sphere of material is placed in a dissolving liquid.(a) When the radius is 1 m, it is observed to be changing at 7 cm/hour. At that instant, what is the rate at which the sphere's volume is... more
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11/05/23

The decibel level of a sound
The decibel level of a sound is given by dB=10log(E/E0), where E0=10^−12watts/m^2 and E is the intensity of the sound.(a) Find the intensity of a 120-decibel sound.E=  watts per square meter.(b)... more
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11/05/23

The apparent magnitude (how bright an object appears to the observer) is given by
The apparent magnitude (how bright an object appears to the observer) is given by M=(5/2)log(b0/b) where b is the brightness of the object and b0 is a positive constant. A particular telescope is... more
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Math

11/05/23

A card is drawn from a​ well-shuffled deck of 52 cards. Find the probability that the card is a red card or a 6.
A card is drawn from a​ well-shuffled deck of 52 cards. Find the probability that the card is a red card or a 6.
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11/05/23

The pH scale for acidity is defined by pH=−log10[H+]
 The pH scale for acidity is defined by pH=−log10[H+] where [H+] is the concentration of hydrogen ions measured in moles per liter (M). A solution has a pH of 3.9. Calculate the concentration of... more
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11/05/23

calculus help!!
Consider the curve e^x^2 − y = y^7x + 8. Using logarithmic differentiation find dy/dx. Give the answer as a function of both x and y. dy/dx=
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11/05/23

calculusss help urgent
Write the first derivative of the given function.f(x) = x3/2ln(x)f'(x)= x^1/2 + ((3x^1/2)ln(x))/2this is correctFor which x-values does f(x) have horizontal tangents? (Enter your answers as a... more
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11/05/23

calculus helpp!!!!!
A volcanic cone spews fine particles of rock which land in the surrounding area and cause the size of the cone to increase.(a) Suppose that a volcanologist takes measurements that show that when... more
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Expert Answers •1

11/05/23

pleaseee help!!. Calculus!!!...

A large sphere of material is placed in a dissolving liquid.(a) When the radius is 1 m, it is observed to be changing at 7 cm/hour. At that instant, what is the rate at which the sphere's volume is... more
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Expert Answers •2

11/05/23

Calculusss Helppp!! Urgent..please help with this one!!!
Suppose that fluid is leaking from an overhead pipe and spreading in the shape of a circle on the ground. If the radius of the circle is increasing at a rate of 0.5 feet per minute, how fast is the... more
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11/05/23

Calculusss Helppp!! Urgent..please help with this one. i tried every method i know, keep getting it wrong. help out!!!
A road running north to south crosses a road going east to west at the point P. Car A is driving north along the first road, and car B is driving east along the second road. At a particular time... more
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11/05/23

Distance, Rate, and Time
Jack leaves Kingstown at 1:00 P.M. and drives to Queensville, 160 mile distant, at 45 miles per hour. At 1:15 P.M. Jill leaves Queensville and drives to Kingstown at 40 miles per hour. At what time... more
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11/05/23

At the beginning of an experiment, a scientist has 224 grams of radioactive goo.
At the beginning of an experiment, a scientist has 224 grams of radioactive goo. After 105 minutes, her sample has decayed to 7 grams.What is the half-life of the goo in minutes?Find a formula... more
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11/05/23

The apparent magnitude (how bright an object appears to the observer) is given by
The apparent magnitude (how bright an object appears to the observer) is given by M=(5/2)log(b0/b) where b is the brightness of the object and b0 is a positive constant. A particular telescope is... more
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Expert Answers •1

11/04/23

STATS HELP PLEASE
I need help with STATS homework please. I tried twice already on A thinking that the random variable was a "random selected night" however it tells me that this is wrong for the answer. I tried... more
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Math Calculus

11/04/23

Calculus 1: f(x) = ln(2 + sin(x)), 0 ≤ x ≤ 2𝜋
f(x) = ln(2 + sin(x)), 0 ≤ x ≤ 2𝜋Find the interval(s) on which f is concave up. (Enter your answer using interval notation.)Find the interval(s) on which f is concave down. (Enter your answer using... more
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Math

11/04/23

Translate this sentence into an equation
The sum of 19 and Carlos's score is 68
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11/04/23

AMC 10, Base That Makes a Difference Indivisible by Three
Which integer value of b makes it so that when you subtract the base-bb number 221b ​ from 2021b​, the result isn't a multiple of 3? The choices are:(A) 3 (B) 4 (C) 6 (D) 7 (E) 8
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