1. Quick Science Check?

A biologist is constructing a cladogram to show the evolutionary relationships between the animals shown below. If anatomical features are used to construct the cladogram, which animal will be placed farthest from the shown animal? Animal shown: connexus.

2. history

The first stirrings of the first Great Awakening took place in A. the backcountry. B. New England. C. the Carolinas. D. Virginia.

3. physics

A barefoot ﬁeld-goal kicker imparts a speed of 44 m/s to a football initially at rest. If the football has a mass of 0.49 kg and the time of contact with the ball is 0.028 s, what is the magnitude of the force exerted by the ball on the kicker’s foot?

4. Statistics

Draw a vertical line through s normal distribution for each of the following z-score locations. Determine whether the tail is on the right or left side of the line and find the proportion in the tail. a. z=2.00 b. z=0.60 c. z= -1.30 d. z= -0.30

5. Statistics

Draw a vertical line through a normal distribution for each of the following z-score locations. Determine whether the body is on the right or left side od the line and find the proportion in the body. a. z= 2.20 b. z= 1.60 c. z= -1.50 d. z= -0.70

6. Algebra 1

I not sure how to do these problems can someone help. a^-1b-2 2x^-3y^1

7. Math

If I graph (-2,-1) and (1,2) on a graph, would I have y = x + 1 as the equation in slope-intercept form?

8. Chemistry

The half-life (t1/2) of a first order reaction is 0.100 s. What is the rate constant? a. 6.93 s-1 b. 0.693 s-1 c. 0.0693 s-1 d. 0.144 s-1 e. 3.01 s-1

9. English

Select the letter of the pair of words that expresses a relationship expressed by the following pair 1.Stethoscope:doctor a.manager: trainee b.best-seller: publisher c.tool:shovel d.microphone:broadcaster 2.cubism:art a.dictatorship:government b.suit:vest

10. Chemistry

A reaction is first order in A. If the rate constant of the reaction is 3.45x10^-3 s-1, what is the half life of the reaction? a. 4.98x10^-3 s b. 200 s c. 3.45x10^-3 s d. 100 s e. 1.73x10^-3 s

11. Pre-Calculus

convert to the alternate form to exponential form. a) 5^4=625 b) e^x=y c) log.001=x I really need help on these problems i have no idea how to do it? pls help me i need to study for it on my exam.

12. Pre-Calculus

Solve the equation 2x + 5y - 3z = -1. Write the general solution as a matrix equation. [x] [ ] [1] [y]= [ ] X [s] [z] [ ] [t] I'm supposed to fill in that blank in the middle, but I don't understand how to solve this if I'm only given one equation. please

13. asap

solve? how do i do this? lmx=5

14. English

Need help revising this paragraph Some folks don’t mind lots of clutter scattered around the house. Others can’t stand that idea. Even doing dishes can be a point of contention. One roommate might see nothing wrong with placing dirty dishes in the sink

15. Math

Recall that the equation for the horizontal distance h in feet of a projectile with initial velocity v0 and initial angle theta is given by h=v0^2/16 sin theta cos theta . a. Assume the initial velocity is 60 ft/second. What initial angle will you need to

16. Algebra

Choose 1 set of points from the choices below. Then, solve the problem and post your solution, showing your steps. Write an equation in point-slope form for the line that passes through one of the following pairs of points (you may choose the pair you want

17. Chem

A radioactive isotope sample has a hal

18. Science

what is the definition of nutrient?

19. Algebra

Can anyone help me with this problem? I need to show all steps and explain what is happening. A graph would be great for a visual too if possible. Thank you for any help. We define the following functions: f(x) = 2x + 5, g(x) = x^2 – 3, h(x) = 7 – x /

20. Chemistry

An aqueous solution containing 17.1 g of an unknown molecular compound ( nonelectrolyte) in 105.0g of water was found to have a freezing point of -1.8 degrees Celsius. What is the molar mass of the unknown compound?

A student wishes to test the accuracy of the measuring jug she is using in an experiment. The label on the jug claims that it measures volume to an accuracy of plus or minus 5 cm3. The density of water is about 0.999 g cm−3, which means that 100 cm3 of

109. Physics Classical Mechanics

MIT A uniform disc of mass m and radius r is acted upon by three forces. find the magnitude of angular acceleration and the sense of rotation. Three different cases. force F, 3F, 2F. need help, not doing so good.

110. chemistry

Complete the following fission reaction 1n0 + 235U92 → 131Sn50 + ? + 2 1n0 + energy

111. algebra

CLEAN CARPET COMPANYS CLEAN 3 ROOMS OF CARPETING FOR 144 DOLLARS. WHICH OF THE FOLLOWING IS AN EQUIVALENT RATE ? A.288 DOLLARS FOR 6.5 ROOMS B. 240 DOLLARS FOR 5.5 ROOMS C. 360 DOLLARS FOR 7.5 ROOMS D. 192 DOLLARS FOR 4.5 ROOMS

112. Math

What is the maximum number of points of intersection of two different lines and three different circles in the same plane?

113. Math

A 5 inch by 8 inch rectangle is enlarged to a similar rectangle whose smallest side measures 9 inches. What is the length in inches of the diagonal of the enlarged rectangle?

114. Math

A bicycle has a 100 cm diameter wheel. If you ride on and around a circle with a 10 km diameter 12 times, how many revolutions does the wheel make?

115. Math

In triangle MABC, D bisects side BC, G bisects side AB, and the points E and F trisect side AC. What is the area of the shaded polygon, if the area of MABC is 108?

116. Math

12. In a triangle ABC, AC = 36, BC = 48, and the medians BD and AE to sides AC and BC, respectively, are perpendicular. Find AB.

117. meteogology

Does the equator receive perpendicular sun rays to the Earth's surface most of the 365 day year.

118. math

A farmer's tractor has gotten stuck in a muddy pasture. To try to free the tractor, the farmer ties a rope to a tree and the front of her tractor, then pulls sideways in the middle of the rope with a force of F = 510 N. Angles of θ = 5 degrees are formed

119. History

Compare European settlements in New England, the Middle Colonies, the Chesapeake, and the South in terms of goals, governments, social structures, and religions. What similarities do you find most remarkable? What differences do you find interesting? Why?

120. math

Two squirrels are sitting on a rope as shown. The tension in segment BD is TBD = 6.3 lb at an angle of ϕ = 47 degrees. The tension in segment AB is TAB = 5.229 lb. Find the weight of the squirrel at B and the angle α.

121. math

Forces are applied to two ropes which are attached to the bumper of a stalled car. If F1 = 100 lbs at an angle of θ1 = 58 degrees, find the necessary magnitude and direction of force F2 so that the resultant force is 190 lbs in the direction shown.

122. Dyanamics

Explain loss of kinetic energy due to oblique impact...

123. Dyanamics

A particle of mass m moves in a x-y plane. the co-ordinates of the particle at any instant are given by x=acos(wt) & y=bsin(wt) where a,b,w are constsnt.Determine the angular momentum of the particle with .r.to the origin of the co-ordinate system

124. PHYSICS

block 3M slides downward without friction. The string connecting blocks 3M and M is ideal (that is, its mass can be neglected and it is not stretchable). The pulley, a uniform solid disc of mass M and radius r , rotates without slipping. Find the

125. Dyanamics

A train is travelling along the circular curve of radius 200m at the instant shown its angular rate of rotation is 10 rad/s which is decresing at 0.2 rad/s determine the magnitude of the trains velocity & acceleration at this instsnt...

126. Dyanamics

A force acting on the body of mass 10kg changes its velocity from 30 miles/hr to 45 miles/hr find the impulse of the force...

127. Dyanamics

Two ships A&B leave port at same time the ship A is north-west at 32km/hr & ship B is 40degree south of west at 24 m/hr determine 1)the speed of ship B relative to ship A 2)At what time they will be 150km apart

128. Math

I Need Help With Two Questions The First One Is Find The Distance Between Riverside And Milton If They Are 12 Cm Apart On A Map With A Scale Of 4 cm : 21 Km And The Second One Is Oak Grove And Salem Are 87 Mi From Each Other . How Far Apart Would The

129. Pre-Calculus

Solve the equation 2x + 5y - 3z = -1. Write the general solution as a matrix equation. I did some guessing and ended up getting this much: [x]= [-1/2 _ _ ] X [1] [y]= [ 0 1 0 ] X [s] [z]= [ 0 0 1 ] X [t] however I still can't figure out the last two values

130. Math :)

In a bag of 10 marbles, there are 5 blue marbles, 3 red marbles, and 2 white marbles. Complete the probability distribution table for drawing 1 marble out of the bag. Draw a: Probability Blue marble 5/10 Red marble 3/10 White marble 2/10 Total: 10 Am I

131. chemistry

A reaction with an equilibrium constant Kc = 1.5 x 1021 would consist of which of the following at equilibrium:

132. Physics

A 4.0 × 103 kg car accelerates from rest at the top of a driveway that is sloped at an angle of 19.6◦ with the horizontal. An average frictional force of 4.0×103 N impedes the car’s motion so that the car’s speed at the bottom of the driveway is

133. chemistry

A reaction with an equilibrium constant Kc = 1.5 x 1021 would consist of which of the following at equilibrium:

134. algebra

Determine X and Y

135. physics

a student is riding in an elevator moving vertically down at a constant speed V. If the mass of the student is M, the power delivered to the student by the normal force of the elevator floor is: +MgV zero -MgV MgV^2

136. economic

College enrollments increased at the same time that average tuition rose dramatically. Does this contradict the law of downward-sloping demand? Explain. (b) Use supply and demand model to explain the dramatic rise in the price of a college education

137. physics

A 2.41 kg ball is attached to a ceiling by a 1.86 m long string. The height of the room is 3.38 m. The acceleration of gravity is 9.81 m/s 2 . What is the gravitational potential energy associated with the ball relative to a) the ceiling? Answer in units

138. Easy Statistics

The probability Joe is at work is 49%,. The probability Joe is at home is 25%. What is the probability Joe is neither at work nor at home? a) 39% b)74% c)52% d) 26% *I personally think it is a or c. I am just needing some help thanks!

139. English

1.the trip led to an argument between Helen and ____ a.I b.me 2. It was ____ who demanded an apology from the newspaper. a.we b.us 3. We appreciated ____ writing a personal letter to explain his stand on the issue. a.his b.him 4. The most outspoken critics

140. English

Select the letter that indicates the correct noun or pronoun in the following sentence. If both choices are correct, select the pronoun. 1. The last time Kevin and Denise were here was right after ____ had broken her ankle. a.she b.Denise 2. In the

141. Bio

What denotes the main relationship between protists and prokaryotes? do they both undergo transcription and translation? do they have different genetic codes?

142. chemistry

A reaction with an equilibrium constant Kc = 1.5 x 1021 would consist of which of the following at equilibrium: A) approximately equal reactants and products B) some reactants and products with reactants slightly favored C) some reactants and products with

143. Statistic

A statistic instructor randomly selected four bags of oranges, each bag labeled 10 pounds, and weighed the bags.They weighed 10.4, 10.9 , 10.8, and 9.9 pounds.assume that the distribution of the weights is normal. Find a 95% confidence interval for the

144. Logic

A fallacy is an argument that a. is a weak inductive argument. b. makes a mistake in deriving a conclusion. c. has a false conclusion. d. is a sound inductive argument.

145. psych

what are some biological and social influences of temperament and what ways are caregivers limited in being able to change an infant's temperament