2,684 Answered Questions for the topic SAT math

12/06/22

Please Help! Write the equation for the ellipses described below:

Write the equation for an ellipse with vertices at (2,-5), (2,3); Foci: (2,-4), (2,2)Write the equation for another ellipse with Major axis vertices: (2,2), (−4,2); Minor axis vertices: (−1,1), (−1,3) more
Sat Math

12/05/22

for which real values of c does the equation x^2 - 6x +c = 0 allow real solutions?

1) For c ≤ 92) For c ≥ 63) For no real value of c4) For c ≤ 45) For any real value of c
Sat Math Accuplacer

12/02/22

How many cups of sugar are need in 1½ batches of cookies

A recipe for 1 batch of cookies uses ¾ cup of sugar. How many cups of sugar are used in 1½ batches of these cookies
Sat Math Math Statistics

11/30/22

What's the probability that there are no more than 6 ​non-smartphone owners?

According to a​ study, ​9% of teenagers​ (age 13-18) have a smartphone. Suppose eight teenagers are selected at random. What's the probability that there are no more than 6 ​non-smartphone owners?
Sat Math Calculus

11/28/22

Calculus show work please.

If 𝑦3 − 𝑥𝑦 = 5, then 𝑑2𝑦/𝑑𝑥2 equals
Sat Math Calculus

11/28/22

Calculus. Show work

Which of the following is an approximate equation of the line tangent to the graph of 𝑓(𝑥) = 𝑥4 + 2𝑥2 at the point where 𝑓′ (𝑥) = 1?
Sat Math Calculus

11/28/22

Calculus. please show work

A particle moves along a line so that at time 𝑡, where 0 ≤ 𝑡 ≤ 𝜋, its position is given by 𝑠(𝑡) = −4 cos 𝑡 − 𝑡2/2 + 10. What is the velocity of the particle when its acceleration is zero
Sat Math Calculus

11/27/22

Calculus. Please show work

Let 𝑓 be the function given by 𝑓(𝑥) = 3𝑒2x and let 𝑔 be the function given by 𝑔(𝑥) = 6𝑥3. At what value of 𝑥 do the graphs of 𝑓 and 𝑔 have parallel tangent lines?
Sat Math Calculus

11/27/22

Calculus. Show work if necessary.

Let 𝑓 be the function 𝑓(𝑥) = 𝑥2 ln 𝑥. For what value of 𝑥 is the slope of the line tangent to the graph of 𝑓 at (𝑥, 𝑓(𝑥)) equal to 2?
Sat Math Calculus

11/27/22

Calculus. Show work please

Consider the curve x2y+y2x=6 Find dy/dx in terms of x and y. Write the equation for the tangent line where x = 2 and y = 1. Find the coordinates of the point (x, y) where the curve has a horizontal... more
Sat Math Math Statistics

11/25/22

What is the expected profit? ​(Round to the nearest dollar as​ needed.)

A man buys a racehorse for ​$20,000 and enters it in two races. He plans to sell the horse​ afterward, hoping to make a profit. If the horse wins both​ races, its value will jump to $60,000. If it... more
Sat Math

11/20/22

The required sample size is

An IQ test is designed so that the mean is 100 and the standard deviation is 19 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics... more
Sat Math Math Probability

11/19/22

Find the probability of the following event.

The number of accidents that occur at a busy intersection is Poisson distributed with a mean of 3.5 per week. Find the probability of the following event.P(9 or more accidents occur in a week)=?
Sat Math

11/17/22

need help ASAP!

Two hundred eighty-eight teachers were surveyed regarding their plans for the upcoming weekend. The results were as follows: 139 plan to grade papers 139 plan to attend a football... more

11/17/22

Math Conversion Oceanography

The drainage basin of the Delaware River encompasses about 35,500 km2 (= 35 x 109 m2). The average annual precipitation for the drainage area is about 44 inches/year (= ~1.1 m/yr) and the... more

Math Conversion

The drainage basin of the Delaware River encompasses about 35,500 km^2 (= 35 x 109 m^2). The average annual precipitation for the drainage area is about 44 inches/year (= ~1.1 m/yr) and the... more
Sat Math

11/16/22

System Of Linear Inequalities

y <= -15x + 3000y <= 5xIn the xy plane, if a point with coordinates (a,b) lies in the solution set of the system of inequalities above, what is the maximum possible value for b?

11/16/22

Can Someone please explain to my grade Predictions

So i currently have 1.5 gpa in a class. I need a 3.0 to pass and these are the only assignments that are left. How well do i have to perform in the remaining assignments order to achieve a 3.0.

11/16/22

Math question easy

Describe the end behavior of each polynomial.(a)    y = x3 − 2x2 + 3x − 12End behavior:    y → as x → ∞y → as x → −∞(b)    y = −3x4 + 11x + 100End behavior:    y → as x → ∞y → as x → −∞

11/16/22

Find the slope of the tangent line to f(x)=x^2-x at x=1

Find the slope of the tangent line to f(x)=x^2-x at x=1Formula used: f(a+h)-f(a)/h

11/16/22

Find the slope of the tangent line to f(x)=x^2-x at x=1

Find the slope of the tangent line to f(x)=x^2-x at x=1Formula used: f(a+h)-f(a)/h
Sat Math

11/16/22

slope is undefined and passes through (3,5)

the slope is undefined and passes through (3,5)

11/16/22

My Qualifications as a Tutor of 5 Years at a Top Five Public University

Hello! My name is Gianna Colby and I am a student at the University of Florida! Nice to meet you all! I have taken almost every AP and AICE, so I can tutor in a lot of those subjects. I got a... more

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