# Bob

Newest questions posted by Bob-
## Prealgebra

Least common multiple of the monomial 5a^2 and 16a^3 -
## Social Studies

Identify two specific ways the Catholic Church tried to stop the spread of Protestantism -
## Math

Simplify: (6 x 10^5) x (3 x 10^4 -
## math

How to multiply 24 x 435x 13 without a calculator -
## college algebra

find two points on the graph other than the vertex and x intercept of f(x)=-(x+5)^2 -
## trigonometry

A plane starts from point P and flies 240km on a bearing of 120 degrees to Q. At Q the plane makes a 90 degree turn and flies 100km on a bearing of 210 degrees to R. At R the plane again changes directions and flies back to P. -
## social studies

Which of the following texts contains commentaries on the teachings of Moses? A. the Writings B. the Torah C. the Hebrew Bible D. the Talmud please help i dont want a bad grade again -
## social studies HELP

Prior to the destruction of the Second Temple, which of the following areas of the world contained Diaspora communities? A. Central Asia B. Great Britain C. Japan D. Southern Africa -
## math

What set of reflections and rotations would carry rectangle ABCD onto itself? Rectangle formed by ordered pairs A at negative 4, 1, B at negative 4, 2, C at negative 1, 2, D at negative 1, 1. -
## physics

a skier is acceleration down a 30.0 degree hill at 3.50 m/s^2. how long (in seconds) will it take her to reach the bottom of the hill. assuming she starts from rest and accelerates uniformly, if the elevation change is 120m? -
## physics

a skier is acceleration down a 30.0 degree hiss at 3.50 m/s^2. how long (in seconds) will it take her to reach the bottom of the hill. assuming she starts from rest and accelerates uniformly, if the elevation change is 120m? -
## AP physics

a delivery truck travels 9 blocks north, 7 blocks west and 12 blocks southwest. What is the final displacement from the origin? blocks are equal length -
## math

Show that 5x7^n+3+11^n-8 is always divisible by 3 for all numbers for n -
## math

We define two numerical operations labelled T and R. The effect of T is to add 1 to a number. For example, if we apply the operation T to the number 2 three times in a row, we obtain 3, then 4, then 5. The effect of R is to find the negative reciprocal of -
## Math

The angle between two force a and b vectors is 114o. The scalar projection of is – 13 N. Determine the magnitude of b. Can the magnitude be a negative number? -
## Vectors

Determine the numbers a, b, and c, such that the vector (a, b, c) is a unit vector with directional angles of 60.3o, 34.0o, and 105o. -
## math

Bruce draws rings of rhombuses about a common centre point. All rhombuses have the same side length. Rhombuses in the first, or inner, ring are all identical. Each rhombus has a vertex at the centre and each of its sides that meet at the centre is shared -
## math

Diana bought a car for $5000 and plans to sell it to make a 20% profit. What should she sell it for to make the profit she desires? -
## Geometry

Tangent Lines practice problems. Unit 7 3. In the figure below, lines that appear to be tangent are tangent. Point O is the center of the circle. Which is the value of x? I am really confused on this question. If anyone could help that would be great -
## Math

Adam used the three fractions to make a circle graph dhd -
## Physics

The critical angle is the angle at which a ray of light is no longer refracted but completely reflected. True False -
## SCIENCE

A sphere of mass 50g and diameter 20cm is rolling with a speed of 5cm/sec . What will be its its total energy. -
## Maths

The Random Variable X is normally distributed with mean 560 and standard deviation 20. Find P(X -
## Statistics

The Random Variable X is normally distributed with mean 560 and standard deviation 20. Find P(X -
## social studies

which of the following is not a type of hieroglyphic sign? a.)Alphabetic sign b.)word sign c.)number sign d.)syllabic sign -
## Precalculus

Suppose you deposit $10,000 into an account earning 3.5% interest compounded quarterly. After n quarters the balance in the account is given by the formula: 10000(1+0.035/4)^n a) Each quarter can be viewed as a term of a sequence. List the first 5 terms. -
## Precalculus

Suppose you deposit $10,000 into an account earning 3.5% interest compounded quarterly. After n quarters the balance in the account is given by the formula: a) Each quarter can be viewed as a term of a sequence. List the first 5 terms. b) Identify the type -
## Precalculus

ool and die company buys a machine for $175,000 and it depreciates at a rate of 30% per year. (In other words, at the end of each year the depreciated value is 70% of what it was at the beginning of the year.) Find the depreciated value of the machine -
## Precalculus

you borrow $5,000 from your parents to purchase a used car. The arrangements of the loan are such that you make payments of $250 per month toward the balance plus 1% interest on the unpaid balance from the previous month. (a) Find the first year monthly -
## Geometry

Complete the following: Describe one way that concepts about similarity could be used in real life. Write two proportions in the form start fraction a over b end fraction equals start fraction c over d end fraction. Only one of your proportions should be a -
## Precalculus

A museum borrows $2,000,000 at simple annual interest to purchase new exhibits. Let x represent the amount borrowed at 7%, y represent the amount borrowed at 8.5%, and z represent the amount borrowed at 9.5%. Set up a system of linear equations to -
## NM History

Based on your learning in this unit, what is one place that holds special significance for native american identity in new mexico? Give two reasons to justify your choice. -
## use exactly 100 letters to write a sentence or two

? -
## Pre calc

Evaluate using the Pythagorean indentities Find sinθ and cosθ if tanθ =1/6 and sinθ >0 Help please ! Thank you ! -
## NEED G+HELP ASAP

a +1/3 = 6/7 1. 1 3/21 2. 5/10 3. 7/10 4. 11/21 EXPLAIN PLEASE -
## math

a fertilizer covers 5/6 square foot in 1/2 unit rate -
## Social Studies

What examples are given of a limited government and an unlimited government in the section? How did each type of government affect its citizens? -
## algebra

Sylvia bought a 6-month $1900 certificate of deposit. At the end of 6 months, she received a $209 simple interest. What rate of interest did the certificate pay -
## health

which is a main factor that accounts for changes in the american family structure -
## health

which is a main factor that accounts for changes in the american family structure 1.casual friends 2.close friends 3.opposite sex friends 4.personal friends -
## Algebra

The first term in the sequence is -2 and the fifth term is -1/8 what is the common ratio -
## Algebra

The sum of one number and 2 times a second number is 57. The sum of the two numbers is 18 -
## math

10-2[10-3(2+1)] --------------- 12/3(2) -
## Language arts

which word in the following sentence is a conjunction? Wow, aren't computer amazing? A. Aren't B. Wow C. Computers D. amazing Ms. Sue please help -
## math

2005 2006 2007 2008 Plant 1 20 4 25 10 Plant 2 25 5 5 48 Plant 3 20 8 20 32 Plant 4 43 10 10 47 Plant 5 40 11 15 48 For which year is the mean the BEST measure of central tendency? A) 2005 B) 2006 C) 2007 D) 2008 -
## Physics

A desk fan has three (approximately) rectangular sheets of 15.8 cm long and 5 cm wide, each with a mass of 140 g. The fan is rotating at a constant angular speed of 19.8 rad / s when the power is turned off. Due to friction the angular velocity of the fan -
## Physics

A uniform disc of 2.98 kg is mounted so that it can rotate in the horizontal plane around a frictionless axis through its center of mass. The angular velocity of the disc at the start is 140 rpm. A hollow cylinder with thin walls and the same radius as the -
## chemistry

What is the mass of BaCl2 contained in 250 mL of solution since after the addition of 40.00 ml of AgNO3 0.1020M to 25.00 mL of the BACl2 solution, the excess solution of AgNO3 consumed 15.00 ml of NH4SCN 0.09800 M -
## physics

A 1000 kg car traveling is at 40.0 m/ s. To avoid hitting a second car the driver slams on his brakes. The brakes provide a constant friction force of 8000 N. ( a) Find the minimum distance that the brakes should be applied in order to avoid a collision -
## Check Please !!! Re-written

I am an aspiring human rights advocate attending the University of Baltimore. I am an individual with many social and political concerns. I am invested in this because I believe…that regardless of individual’s sexual multiplicities and social -
## eNGLISH

HELP-REWORD!!! OF DOES IT SOUND CLEAR? Although I am not part of the LGBTQ community, as an outsider, I personally know someone that this bill would relate to. People not in the LGTQQ community may not understand the political forces that impact people in -
## Math

ABC has vertices A(0, 6), B(4, 6), and C(1, 3). Find the orthocenter of ABC? -
## Physics

An electron is acted upon by a force of 3.50×10−15 N due to an electric field. Find the acceleration this force produces in each case: The electron's speed is 6.00 km/s . =3.84*10^15 The electron's speed is 2.60×108 m/s and the force is parallel to the -
## math

1000000 + 100000000000000 -
## Physics

A block with a weight of 3.7 N is launched along a slope upwards by a spring with k = 2.25 kN / m. The slope makes an angle of 30° with the horizontal and has a vertical height of 0.75 m (measured from the starting point of the block). When the block is -
## Physics

A placekicker kicks a football with a velocity of 35 m/sec and an angle of 25˚ above the horizontal. When the football is 10 m off the ground, a. What is the horizontal velocity of the ball? b. What is the vertical velocity of the ball? c. What is the -
## Physics

A flight attendant pulls her 66 N flight bag a distance of 359 m along a level airport floor at a constant velocity. The force she exerts is 42 N at an angle of 54Â° above the horizontal. -
## math

what is the property of 7(2-p)=14-7p -
## math

7^2 + 24^2 =??? Please someone help!!!!! -
## math

An old lady has 125 cats. Seven of them are old, 9 of them are her favorite, 5 of them are both (old and favorite). How many of are neither old nor favorite? -
## physics

A sled loaded with bricks has a total mass of 17.0 kg and is pulled at constant speed by a rope inclined at 20.0o above the horizontal. The sled moves a distance of 17.0 m on a horizontal surface. The coefficient of kinetic friction between the sled and -
## Finite Math

An urn contains 55 green marbles and 44 red marbles. One marble is removed, its color noted, and not replaced. A second marble is removed and its color is noted. (a) What is the probability that both marbles are green? red? (b) What is -
## Chemistry

Silver(I) nitrate and sodium sulfate react to form silver(I) sulfate and sodium nitrate. Suppose 49.02 mL of 0.040 M silver(I) nitrate solution and 39.48 mL of 0.10 M sodium sulfate solution are mixed. What is the maximum number of grams of silver(I) -
## Trigonometry

Two students are passing a ball back and forth, allowing it to bounce once between them. If one students bounce passes the ball from a height of 1.4 m and it bounces 3 m away from the students, where should the second student stand to catch the ball at a -
## Pre Calculus

Find all $2 \times 2$ matrices $\bold{A}$ that have the property that for any $2 \times 2$ matrix $\bold{B}$, \[\bold{A} \bold{B} = \bold{B} \bold{A}.\] -
## Pre Calculus

For a vector $\bold{v}$, let $\bold{r}$ be the reflection of $\bold{v}$ over the line \[\bold{x} = t \begin{pmatrix} 2 \\ -1 \end{pmatrix}.\] [asy] unitsize(1 cm); pair O, V, R; O = (0,0); V = (3,1); R = reflect(O,(2,-1))*(V); xaxis(-2,4); yaxis(-3,1); -
## Pre Calculus

Let $\bold{w} = \begin{pmatrix} 2 \\ -1 \end{pmatrix}$. There exists a $2 \times 2$ matrix $\bold{P}$ such that \[\text{proj}_{\bold{w}} \bold{v} = \bold{P} \bold{v}\] for all 2-dimensional vectors $\bold{v}$. Find $\bold{P}$. -
## Pre Calculus

Find the 2 x 2 matrix A such that pmatrix{(-1,-1)(1 -1)} A = I, where I is the 2 x 2 identity matrix. -
## science

I need an acrostic on the word eukaryotic -
## algebra

1. solve 2x + y = 7 for y 2. solve 2y - 18x = 26 for y 3. solve 20x + 5y =15 for y 4. solve 9x - y = 45 for y 5. solve 6x - 3y = -6 for y 6. solve 4x - 5 = 7 + 4y for y -
## algebra

solve y - 3x = 13 for y -
## Math

Laverne starts counting out loud by 5's. She starts with 7. As Laverne counts, Shirley sums the numbers Laverne says. When the sum finally exceeds 5000, Shirley runs screaming from the room. What number did Laverne last say before Shirley flees? -
## social studies

Which of the following statements is accurate regarding the Three-Fifths Compromise and the issue of slavery? -
## math

A serving of ice cream contains 1200 calories. One hundred forty-four calories come from fat. What percent of the total calories come from fat? -
## Physics

A boat leaves the shore of a stream. It starts directly across from point A, as shown. The velocity of the boat is 5.2 m/s, at an angle θ = 25E as shown. The stream is 94 meters across, and is moving at 1.5 m/s. How far downstream from point A does the -
## Physics

An aircraft travels 250 km on a heading of 330 degrees. It then turns due east and travels 420 km. How far and on what heading did it end up from it's starting point? Please help!!! -
## math

You conduct an experiment of dice rolling and roll a six 14 times out of 56 rolls. Write both the experimental probability and the theoretical probability in fraction and percent form. -
## geometry

The two non-parallel sides of an isosceles trapezoid are each 7 feet long. The longer of the two bases measures 22 feet long. The sum of the base angles is 140°. a. Find the length of the diagonal. b. Find the length of the shorter base. Round your -
## geometry

George plans to cover his circular pool for the upcoming winter season. The pool has a diameter of 20 feet and extends 12 inches beyond the edge of the pool. A rope runs along the edge of the cover to secure it in place. a. What is the area of the pool -
## math

what is the answer for it -
## SAT Math

If x/w=28 and 5yw=3, then xy=? -
## Us history

Which of these is an example of a monetary incentive A. Having fun walking a dog B. Making friends on a sports team C. Learning a new skill by studying it D. Earning a allowance for doing chores -
## Personal Finance

Which type of computation would a person use to determine current value of a desired amount for the future? A. Present value of a series of deposits B. Future value of a single amount C. Future value of a series of deposits D. Present value of a single -
## HELP

why are cherry blossoms called cherry blossoms if they don't have cherries -
## science

why are cherry blossoms called cherry blossoms -
## studies

Why was inflation a problem after World War II? -
## Math

When Alina was hungry she ate c cookies, which was 30% of all the cookies she had. How many cookies did she have in the beginning? -
## Math

There were d passengers in the train. 15% of all of them went in the first car, 20% went in the second car. How many passengers were in the rest of the train? -
## Math

This 3 demensional shape has 7 faces that are rectangles as well as two bases that are polygons. What is this shape ? -
## Math

This 3 demensional shape has 7 faces that are rectangles as well as two bases that are polygons. What is this shape ? -
## Geometry

This 3 dimensional shape has 6 faces that are triangles as well as one base that is a polygon. what is this shape? -
## Math

I am a 3 dimensional shape whose 8 faces are equilateral triangles. What am I? -
## 5th Grade English Grammar

positive comparative superlative for troubled, straight, friendly, dry, safe, useful, flat, willing, blue, worst, and sad. Thanks. -
## Math

Let's say you flip 2 coins simultaneously. There are 3 possible outcomes: Both are heads, both are tails, or one is heads and the other is tails. Does this mean that the probability of getting one head and one tail is 1/3? -
## Math

Let's say you flip 2 coins simultaneously. There are 3 possible outcomes: Both are heads, both are tails, or one is heads and the other is tails. Does this mean that the probability of getting one head and one tail is 1/3? -
## Calculus

Consider the equation xy2 − x2y = 6. (a) Find all points on the graph when x = 2. (b) Find a formula for dy dx in terms of x and y. (c) Find the tangent lines for the points you found in the ﬁrst part -
## Caclulu

consider the function f(x) = 9/x^3 -10/x^7 let F(x) be the antiderivatice of f(x) with F(1)=0 then F(x)= -
## Caclulus

A particle is moving as given by the data below 4sin(t)-3cos(t); s(0)=0 -
## Calculus

A particle is moving as given by the data below 4sin(t)-3cos(t); s(0)=0 -
## Calculus

consider the function f(x) = 9/x^3 -10/x^7 let F(x) be the antiderivatice of f(x) with F(1)=) then F(x)=