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Kelly
Questions and answers by
Kelly
, page 8
Questions (805)
Q: List the impacts of reduced river flows that were identified within the Murray-Darling Basin in the 1980s.
. Thanks
1 answer
289 views
What is the 20th term of the sequence that begins with −2, 4, -8, 16
ANSWER CHOICES: A)2,097,152 B)524,288 C)-524,288
3 answers
1,185 views
A sample of impure Limestone weighing 0.3440 g was treated with 50 mL of HCl 0.1363 mol/l. after elimination of all CO2 by
2 answers
579 views
Ammonia gas is passed into water, yielding a solution of density of 0.93
g/mL and containing 18.6% NH3 by weight. What is the
2 answers
769 views
A plane flies due east for 35 miles and then due south until it is 37 miles from its starting point. How far south did the plane
2 answers
508 views
How many 1oz bottles will this solution fill.
2 answers
912 views
The Ka of an acid is 1.3 x 10–7. Based on the Ka and its relationship with Kw, what is the value of Kb?
2 answers
807 views
In the reaction C + O2 → CO2, 18 g of carbon react with oxygen to produce 72 g of carbon dioxide. What mass of oxygen would be
3 answers
1,191 views
A glass of water contains 1.2 x 1024 molecules of water. An additional 4.0 moles of water are poured into the glass. How many
4 answers
1,288 views
If you start with 4.00 moles of C3H8 (propane) and 4.00 moles of O2, how many moles of carbon dioxide can be produced?
4 answers
1,439 views
Write chemical formulas for the compounds formed by the following positive and negative ions: Ba2+ and NO3-, Al3+ and Co3, and
3 answers
4,781 views
1) The measurement is 15.5, the tolerance is 5. Whats the precision, uncertainty, range, nominal value and precent error?
2) The
1 answer
613 views
Use upper and lower sums to approximate the area of the region using the given number of subintervals (of equal width). (Round
4 answers
2,180 views
The maker of an automobile advertises that it takes 13 seconds to accelerate from 25 kilometers per hour to 90 kilometers per
6 answers
5,576 views
Use a(t) = -32 ft/sec2 as the acceleration due to gravity. (Neglect air resistance.)
A ball is thrown vertically upward from a
3 answers
980 views
If you used 50 grams of copper (II) oxide, how much copper would be produced. (Use the ratio)
3 answers
922 views
An angle θ satisfies the relation csc θ cos θ = -1.
A) Use the definition of the reciprocal trigonometric ratios to express
2 answers
493 views
Find the unit rate. Round to the nearest tenth, if necessary.
344 miles in 11 hours 344 3,784 0.03 31.27 ** Find the unit rate.
3 answers
1,937 views
Use cross products to see if each pair of ratios forms a proportion. Replace each box with = or ≠.
1. 7/5 ? 15/10 = ≠ <--- 2.
19 answers
asked by
Kelly
13,974 views
Hi can someone please help me?
A recent study gave the information shown in the table about ages of children receiving toys. The
3 answers
2,908 views
A load of 12 kg stretches 15 cm and a load of 30 kg stretches 18 cm. Find the natural (unstretched) length of the spring.
3 answers
1,096 views
In a book closet, mathematics books are kept in stacks of 4. If each student carries no more than one stack, what is the least
3 answers
555 views
In a book closet, mathematics books are kept in stacks of 4. If each student carries no more than one stack, what is the least
3 answers
539 views
Which is a reasonable estimate?
2/3 + 4/5 a. <1 b. About 1 c. About 1 1/2 d. Between 2 and 3
1 answer
344 views
Ryan needs 8 5/16 feet of molding to finish a closet. He has 6 feet of molding. How many more feet of molding does he need?
1 answer
386 views
An ant is roughly 10^(-3) meters in length and the average human roughly one meter. How many times longer is a human than an
4 answers
1,459 views
The crowd encouraged the team. The team scored 10 points.
a-the crowd encouraged the team to score 10 points. b-When the crowd
2 answers
787 views
what is it that makes a state a capitalist state?
Could be the way it influences the world in economic ways? If so, what else
9 answers
594 views
Four candidates running for mayor receive votes as follows:
Ito: 16,032; Johnson: 36,072; Kennedy: 8,016; Lieberman: 12,024 How
2 answers
612 views
The city council gave a questionnaire to its citizens, asking them to rank their priorities for next year's budget. People were
3 answers
1,201 views
Terrell drove at a speed of 48 1/2 miles per hour for 2 14 hours. How far did he travel?
2 answers
657 views
Suppose that 4 cards are drawn from a well-shuffled deck of 52 cards. What is the probability that all 4 are hearts?
Would the
4 answers
2,147 views
James has set up an ordinary annuity to save for his retirement in 19 years. If his monthly payments are $250 and the annuity
1 answer
828 views
Explain how you would factor x^2-5x-24
You must explain EACH step and process t get to your factored solution The work I have
2 answers
615 views
Pouring liquid nitrogen onto a balloon decreases the volume of the balloon dramatically. Afterward, the balloon re-inflates. Use
4 answers
1,455 views
Why Odysseus is an important part of the poem? Your response should be at least 5 sentences long
4 answers
376 views
Describe Odysseus as you imagined him (your interpretation) in 5-6 sentences
1 answer
351 views
Identify one of the darker action from "The Odyssey" poem or "Animal Farm" story. In what piece the action highlighted what
2 answers
947 views
how do provider options impact reimbursement for patients?
1 answer
686 views
A part time job pays $465.55 a week and a fixed hourly rate for any extra hours of work. For 2 weeks Emily works 4 extra hours
3 answers
771 views
Kelly subtracted 2.3 from 20 and got 17.7. Explain why this answer is reasonable
2 answers
811 views
how did barium hydroxide appear in the absence of CO2 and how it appear in the presence of CO2
1 answer
400 views
How many moles of Al2O3 exist in 250.0 g of sample? Please help tried still can't understand how to get it. Need before
4 answers
909 views
A science class has four girls and four boys in the seventh grade and three girls and five boys in the eighth grade the teacher
2 answers
647 views
The position of a particle is given by r(t)=(t+cos(t/2), -3sint).
What is the particles velocity vector when t=pi? a)v=<0.5, -3>
1 answer
364 views
Each of the items below contains two of the types of verb mistakes discussed in this chapter. Find and cross out these two
2 answers
510 views
Write 2 complete Bronsted/Lowry acid/base reactions for the reaction between HC2c2O4- and HPO42-. Identify all conjugate pairs.
m
4 answers
1,229 views
Calculate the pH and % ionization for each of the following acids.a. 0.15 M HNO3b. 0.10 M HCNc. 0.40 M HFd. 0.10 M HClO2
I have
1 answer
429 views
a circular arch of length 3ft subtends a central angle of 25 degrees. Find the Radius of the circle
I got 6.875 but i think that
3 answers
907 views
How many g of C2H5NH3Cl will be needed to combine with 4.7 g of C2H5NH2 to produce 0.250 L of buffer solution at a pH of 10.00?
I
3 answers
503 views
Determine a pH range for which a buffer system containing benzoic acid would be appropriate. Devise a recipe for preparing 1.0 L
4 answers
499 views
If y5 + 3x2y2 + 5x4 = 49 , then dy/dx at the point (–1, 2) is:
–1 11/23 –23/11 –10/3 0
5 answers
1,450 views
A 100.00 ml of volume of 0.500 M HCl was mixed with 100.00 ml of 0.500 M KOH in a constant pressure calorimeter. The initial
4 answers
3,082 views
Consider the following reaction: Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g)
0.103 g of Zn is combined with enough HCl to make 50.0 mL
2 answers
1,538 views
Three particles, each of mass 1.0 kg, are fastened to each other and to a rotation axis by three massless strings, each 0.120 m
1 answer
614 views
Betty's ball and Fred's ball have the same size, but Fred's ball is hollow. Wilma's ball and Barney's ball are scaled down
2 answers
570 views
An observer is located directly between two speakers located 20 metres apart.Speakers are in phase and both are emitting a sound
2 answers
553 views
Suppose active sonar on a stationary ship is used to determine the speed of a ship that is moving away from it. A sonar ping is
2 answers
602 views
Complete the sentence(only one word).As the water waves approach the shore they --------- into a medium of lower wave
1 answer
412 views
Assuming a proprietorship, partnership, and corporation earns equal amount of income and it is distributed evenly among owners,
5 answers
2,810 views
Hola! Can you please check my work to see if it's correct or not? Muchas gracias!
Escoja la forma correcta del verbo para
3 answers
1,420 views
In what way did China's isolated geography contribute to its development as a country?
Isolation allowed China to develop on its
2 answers
1,279 views
A 85 kg man weighs 833 N on the Earth's surface. How far above the surface of the Earth would he have to go to "lose" 18% of his
2 answers
705 views
A sociologist is interested in the proportion of people that would attend a fund raiser if the had to pay to enter the event.
2 answers
536 views
Theta is acute and alpha is obtuse . It is known that sin theta=2/5 and cosec alpha =2. Compute the exact values of
a) sec theta
3 answers
787 views
a) P is the point on the curve y= 2x^3 +kx -5 where x= 1 and gradient is -2.
Find (i) The value of the constant k (ii) The
3 answers
533 views
a) (root 3 + i )to the 8th power
b) (1-i) to the seventh power
1 answer
334 views
Lynn has two jobs. She earns $7.50 per hour as the hostess for a restaurant and earns $10 per hour babysitting for a neighbor.
Ly
3 answers
1,268 views
An enclosed field is made up of three sections:
• One section is a 10-yard by 10-yard square. • Another section is a larger
2 answers
946 views
How much heat is necessary to change 430 grams of ice -9 Celsius to water at 20 Celsius.
2 answers
618 views
A 29.00 mL sample of an unknown H3PO4 solution is titrated with a 0.100 M NaOH solution. The equivalence point is reached when
4 answers
2,299 views
Write 1+iroot 3 and 1-iroot3 in trig form and simplify (1+iroot3)^9 +(1-iroot3)^9 in x+iy form.
4 answers
610 views
The mass of a radioactive substance decreases at a rate proportional to the mass at the time. The orginal mass is 700 grams and
2 answers
633 views
As a senior prefect, write a speech on your principal senth forth party.
1 answer
419 views
Which of the following describes objects that are formed of molecules very close together with little room to move or are made
4 answers
1,039 views
Suppose that there are two types of tickets to a show Advanced and same day. The combined cost of one advance ticket and one
3 answers
1,212 views
A plane leaves an airport p(10°S,60°E) and flies due north 800km/he by taking R 6370 and I 22\7 find it's position after 2hrs
1 answer
440 views
Consider a ballistic pendulum experiment in which the mass of the ball (bullet) and the pendulum cage (block) are the same. What
4 answers
1,446 views
On a certain exam, Tony corrected
10 papers and found the mean for his group to be 80. Alice corrected the remaining 50 papers
4 answers
1,115 views
What eon represents the largest portion of geologic time? What era represents the shortest portion of geologic time?
Thank you!
3 answers
360 views
A 30-kg mass is pushed across a horizontal surface by horizontal force of 60 N. The force is acting in the east direction. The
1 answer
334 views
If 2 side lengths of a triangle are 5ft and 8ft what could the third side length NOT be? Choices: 4ft, 8ft, 11ft or 15ft.
3 answers
294 views
A) Using a ruler and a pair of compasses, construct a triangle with sides of lengths 6cm,8cm and 10cm
1 answer
255 views
What does “Identify a variety of resources that are appropriate to the scenario?” Mean?
2 answers
228 views
Ranjeet parks his car in a lot on the corner of Parklane and Main Street. He walks 100 m east to
first avenue, turns 30% to the
3 answers
561 views
A boat is travelling across the water at 18 km/hr due E. A policeman needs to intercept the boat as quickly as possible but is
1 answer
235 views
A plumber's arrives and includes the cost of parts and labor. The total for the bill is $458 for the job. The cost of parts was
2 answers
249 views
Advices that can caution peers about the consequences of teenage pregnancy
1 answer
74 views
Describe the hardships and indignities faced by Africans from the time of being captured and transported to the Americas to
1 answer
102 views
What is the scientific term for a section of a chromosome?
1 answer
247 views
Which statement is true of all proteins
1 answer
251 views
Which structural data is normally used to classify mosses into the category bryophyta
3 answers
449 views
If a and b of the first term of r+2 terms find second term before reaching r+2
13 answers
67 views
The average mass of class is 52.5 if the average mass of the boy only in class is 50kg and that of girls is only is 54kg find
2 answers
68 views
Find the equation of lines through origin ,perpendicular to the lines
2 answers
68 views
Find the equation of lines through the origin ,perpendicular to the line 2x+y=8
2 answers
53 views
Find the equation of lines through the origin perpendicular to the line 5x+3y+1=0
4 answers
55 views
The LCM and gcf of three number are respectively 360 and 3 if two number are 18 and 24 find third number
4 answers
130 views
use the product rule of exponents to simplify the expression 2^4 × 2^2 1 point
1 answer
14 views
use the product rule of exponents to simplify the expression 3^8 × 3^3 1 point
1 answer
15 views
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