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SL

Stephen L.

Elementary Statistics a Step by Step Approach

12 seconds ago

Give the definition of a valid instrumental variable

NR

Noor R.

Calculus 1 / AB

19 seconds ago

Find f'

DA

Daniel A.

Algebra

None

The Assyrian calendar was based on the phases of the moon. One lunation was 2912 days long. There were 12 lunations in one year. Find the number of days in one year in the Assyrian calendar.

cl

Cassandra L.

Physics 101 Mechanics

3 minutes ago

The distance between the front and rear wheels of a truck is 6.75 m. If the front wheels each press on the ground with a 6750 N force, and each rear wheel with a 9950 N force, determine the location of the center of gravity.

LH

Lee H.

Linear Algebra

3 minutes ago

A car was driven 6 times to measure the distance and the amount of fuel used. The results are as follows: 1 2 3 4 5 6 Distance (km) 20 25 30 35 28 40 Amount of fuel used (L) 2.14 2.75 2.65 3 2.80 2.479 Construct a scatter plot Is there a linear relationship between distance and the amount of fuel used? If so, How would you describe the relationship? What percentage of the variability in the amount of fuel used can be explained by the variability in the distance? Determining the regression line for distance and amount of fuel used.

cl

Cassandra L.

Physics 101 Mechanics

11 minutes ago

A light fixture is suspended from two wires that make angles of 72.0 deg and 65.0 deg with the horizontal. Determine the tensions in the wires if the light fixture has a mass of 2.0 kg

SO

Sarah O.

Calculus 1 / AB

12 minutes ago

Part 2 - I need help with these calculus questions please!

SO

Sarah O.

Calculus 1 / AB

13 minutes ago

Part 1 - I need help with these calculus questions please!

SS

Smith S.

Precalculus

15 minutes ago

The formula for plasma volume for females given by Hurley is PV=1278S^1.289 , while the formula given by Pearson et al. is PV= 1395S , where PV is measured in mm and S in m2. Find the values of S for which these two formulas give the same answer.

SS

Smith S.

Precalculus

16 minutes ago

What method would you use to solve the following question? Do we have to list any units?

JJ

Julius J.

Geometry

19 minutes ago

USING PARALLEL LINES Find the angle measure- Tell which postulate or theorem you use

KR

Karen R.

Algebra 2

19 minutes ago

Find all other zeros of P(x)=x^3-6x^2+13x-10, given that 2-i is a zero

MF

Mahir F.

Physics 103

24 minutes ago

Find the number of atoms in a unit cell of NaCl structure

SM

Scott M.

College Algebra

None

Find the point that is symmetric to the given point with respect to the x-axis, the y-axis, and the origin.

J

Jen

Geometry

None

Write a 2 column proof. Given:PSTV is a parallelogram. PQ=RQ Prove <STV =<R

MA

Mohammed A.

Linear Algebra

36 minutes ago

I could not solve part b in the question below, would it be possible to help me?

DR

Darious R.

Chemistry 101

None

0.600 mol of BaCl2 in 100.0 mL of solution

ST

Stacy T.

Precalculus

46 minutes ago

When granular materials? fall, they form conical piles. The angle of? slope, measured from the? horizontal, at which the material comes to rest is called the angle of repose. The angle of repose is related to the height h and base radius r of the conical pile by the equation ?=cot?1 r h. When a certain granular material is stored in a pile 20 feet? high, the diameter of the base of the pile is 25 feet.

OA

Olga A.

Algebra and Trigonometry

57 minutes ago

Given that cos 80 = 0.173648 . . . , explain how to find cos 100, cos 260, cos 280, and sin 190 without using a calculator.

OA

Olga A.

Algebra and Trigonometry

59 minutes ago

Given that cos 80 = 0.173648 . . . , explain how to find cos 100, cos 260, cos 280, and sin 190 without using a calculator.

ym

Y M.

Calculus 1 / AB

an hour ago

f(x)=(x+1)^2/1+x^2 What is the second derivative of this function? Also, what is the f''(0)=?

ED

Elci D.

Probability

an hour ago

Leo has a pizza business. The times to prepare and deliver pizzas are approximately normally distributed with average time of 27 min and standard deviation SD of 5 min. a) Suppose that Leo "if takes ,ore than 35 min to get your pizza, you get it free". What fraction of his take-out pizzas will he have to give away free? b) How long a time should Leo allow if he wants to give away no more than 10% of the pizzas?

aa

Akhlas A.

Calculus 3

an hour ago

Use the Chain Rule to find dw/dt. w = ln x2 + y2 + z2 , x = 3 sin t, y = 8 cos t, z = 5 tan t

TJ

Teshawn J.

Linear Algebra

None

Most fast food restaurants will provide nutritional brochures to customers if requested.

MM

Myra M.

Biology

an hour ago

Which of the following about the lymphatic system and infection is FALSE? Select one: a. Lymph is made from filtered blood plasma. b. Bowel and brain tissue can be infected with HIV via the lymphatic system. c. The lymphatic system is physically separate from the circulatory system. d. Free HIV virus is not found in lymph. e. Dendritic cells, after contacting a pathogen and displaying an antigen, migrate in lymph to lymphoid tissue.

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