Questions and answers by

Valerie

Questions (205)

What is the difference between DNA, genes, and chromosomes?
1. 1 answer
2. 36 views
Triangle\[\triangle A'B'C'\] is the image of \[\triangle ABC\] under a dilation with a scale factor of \[2\]. A first quadrant
1. 1 answer
2. 35 views
Triangle\[\triangle A'B'C'\] is the image of \[\triangle ABC\] under a dilation. A first quadrant coordinate plane. The
1. 1 answer
2. 38 views
Quadrilateral\[A'B'C'D'\] is the image of quadrilateral \[ABCD\] under a dilation with a scale factor of \[4\]. A first quadrant
1. 1 answer
2. 46 views
Quadrilateral\[A'B'C'D'\] is the image of quadrilateral \[ABCD\] under a dilation with a scale factor of \[3\]. A first quadrant
1. 1 answer
2. 36 views
what is the main conflict in the short story call of duty by jason reynolds
1. 1 answer
2. 35 views
Discuss the source of the main conflict in Jason Reynolds’ short story “Call of Duty.”
1. 1 answer
2. 34 views
Point\[Q'\] is the image of \[Q(0,6)\] under the translation \[(x,y)\to(x+7,y-5)\]. What are the coordinates of \[Q'\]?
1. 1 answer
2. 40 views
Point\[P'\] is the image of \[P(5,-5)\] under a translation by \[2\] units to the left and \[5\] units up. What are the
1. 1 answer
2. 29 views
Explain the concepts you have learned in Organic Chemistry, and Properties of Matter with application in daily life examples.
1. 1 answer
2. 76 views
Plastic is polymer. List two drawback of using plastic.
1. 1 answer
2. 62 views
Summarize the strengths and weaknesses of hydrogen gas as an alternative energy.
1. 1 answer
2. 56 views
Imagine you pour 250 mL of hot cocoa into an insulated Thermos and another 250 mL into a ceramic cup. Explain why the cocoa in
1. 1 answer
2. 64 views
A debate against the motion boys should not help in the kitchen
1. 1 answer
2. 107 views
The equation of an ellipse is\frac{x^2}{a^2} + \frac{y^2}{b^2} = 1. Point $Q$ is at $(0,b).$ Points $P$ and $R$ lie on the
1. 3 answers
2. 172 views
An ellipse is tangent to both the $x$-axis and the $y$-axis, and its foci are at $(2, -3)$ and $(2, -8).$ Find the length of the
1. 8 answers
2. 227 views
The polynomial p(x) = x^2+ax+b has distinct roots 2a and b. Find a+b.
1. 3 answers
2. 137 views
Compete the following nuclear equation:235 4 92 u----> 2 He
1. 1 answer
2. 120 views
Compete the following nuclear equation:235 4 92 u----> 2 He a Pa-231 b U-235 c Th - 231 d Ac - 231
1. 4 answers
2. 146 views
Compete the following nuclear equation:a Pa-231 b U-235 c Th - 231 d Ac - 231
1. 1 answer
2. 147 views
How many grams of CO2 are formed if 10.0 g of carbon are burned?C + O2 ----------> CO2 a 38 grams b 38.7 grams c 36.7 grams d
1. 1 answer
2. 138 views
How many grams of iron can be made from the complete reaction of 21.4 grams of Fe2O3?Fe2O3 + 3CO -----> 2Fe + 3CO2 a 0.150 grams
1. 1 answer
2. 167 views
What is the mole ratio between potassium chlorate and oxygen in the following equation:2KClO3 --------> 2KCl + 3O2
1. 1 answer
2. 152 views
What is the pOH of a solution that has a pH of 2?a 12 b 14 c 10 d 2
1. 1 answer
2. 86 views
A gas sample has a volume of 0.150 L at a temperature of 265K. what volume will the gas occupy at 288 K?(V1/T1 = V2/T2) a 138 L
1. 1 answer
2. 101 views
Which of the following will always have a charge of -2 when present in a compound?a Fe b O c Cr d Na
1. 1 answer
2. 127 views
What volume of hydrogen gas at STP is produced by the complete reaction of 15.0 g of sodium according to the following equation:
1. 1 answer
2. 176 views
What volume of hydrogen gas at STP is produced by the complete reaction of 15.0 g of sodium according to the following equation:
1. 1 answer
2. 158 views
What mass of sucrose (C12H22O11) is needed to make 0.500 L of a 0.200 M solution?(grams = M x gfm x M; sucrose = 342 g/mol)
1. 1 answer
2. 175 views
What is the percentage composition of the iron in Fe(C2H3O2)2?
1. 1 answer
2. 96 views
When balancing the following equation, what is the coefficient for KCl?KI + Cl2 à KCl + I2
1. 1 answer
2. 131 views
A compound is 69.9% iron and 30.1% oxygen by mass. What is its empirical formula?
1. 1 answer
2. 110 views
Which of the following half-reactions is an oxidation?a AuCl4- -----> AuCl2- b Co3+ -----> Co2+ c Mn7+ -----> Mn2+ d Cl2 ----->
1. 1 answer
2. 115 views
When balancing the following equation, what is the coefficient for potassium chloride, KCl?AlCl3 + K3PO4 à AlPO4 + KCl
1. 1 answer
2. 131 views
Find all values of x such that \sqrt{4x^2} + \sqrt{x^2} = 6 + 3x.
1. 3 answers
2. 168 views
Real numbers a and b satisfya + ab = 250 a - ab = -240 Enter all possible values of a, separated by commas.
1. 1 answer
2. 133 views
Let p(x) be a quadratic polynomial, such that its graph is tangent to the lines y = -11x - 37, y = x, and y = 9. The
1. 1 answer
2. 159 views
A circle sits in the interior of the parabola with equation y = x^2/4, so that it is tangent to the parabola at two points. How
1. 2 answers
2. 157 views
Six parabolas are arranged around a circle. Each parabola is congruent to the graph of y = x^2/4. Also, each parabola is tangent
1. 1 answer
2. 158 views
Assuming that p neq 0 and q neq 0, simplify (pq^2)^3*(4pq^2)^(-3)*(2pq)^2*(2p^2*q^3)^2
1. 1 answer
2. 93 views
What is the smallest distance between the origin and a point on the graph of y = 1/2*(x^2 - 18)?
1. 1 answer
2. 209 views
Create: Write a ResponseLevel 1: Use the information in the chart to create a one-paragraph summary of “Female WWII Pilots:
1. 1 answer
2. 151 views
The sum of a non-zero integer and zero has the same value as the square of the integer. What is the integer?
1. 1 answer
2. 106 views
200 grams of a liquid completely fill a 500 mL bottle. What is the density of the liquid?
1. 0 answers
2. 190 views
can i have the answer to the science unit testlesson 10 unit one 6 a SUB 1 Introduction to science 6
1. 9 answers
2. 1,280 views
Consider the sequence of steps to solve the equation:5(x - 3) = 7x 2 Step 1 ⇒ 10(x - 3) = 7x Step 2 ⇒ 10x - 30 = 7x Step 3
1. 5 answers
2. 3,897 views
Which territorial acquisition- excluding the original United States-- added the greatest number of states to the nation?Gadsden
1. 3 answers
2. 840 views
Hillary buys 3 pounds of Gala apples and some Granny Smith apples. Both kinds of apples cost $4.50 per pound. The total cost is
1. 2 answers
2. 1,404 views
a sample of radioactive iodine (half life=3 days) originally weighed 10 g, but now weighs 0.625 g. How old is the sample?
1. 2 answers
2. 1,046 views
I am learning Java in programming right now. I need to write a program that should have an output like this:The program says
1. 1 answer
2. 895 views
Find the value of this integer expression: -2(+3+-4+-8++7) Calculate in distributions and without distribution. There are
1. 5 answers
2. 1,124 views
Can anyone check this and see if I'm right?A crafts store bought 27 1/4 ounces of potpourri. The shop divides the potpourri into
1. 6 answers
2. 792 views
Mali-li has 7 1/2 yd of material. Her new skirt will take 4 5/8 yd. How much material will she have left after the skirt is
1. 18 answers
2. 4,663 views
Estimate these14/16 + 1/5 2 0 1/2 1 This one 5 2/11 - 3 2/18 3 1 This one? 4 2 7 1/13 * 4 15/17 28 35 this one 48 40 I'm not
1. 1 answer
2. 826 views
Are there any problems in this?-3 1/5 / -2/3 = -4 4/5 Here is the work it showed. -3 1/5 / -4 4/5=-16/5 * -3/2=-8/5 * -3/1 =
1. 3 answers
2. 414 views
This is what the chart talks about.A Melt 1 cup of butter chop an onion mix ingredients in a large bowl B Brown the meat in a
1. 2 answers
2. 1,145 views
How does the amount of substance affect the rate at which temperature changes? I will like someone to explain this to me,
1. 2 answers
2. 1,018 views
Which sentence uses coordinates adjectives?Mario gazes at the large painting of the beautiful lake. Mario gazed at the lake and
1. 4 answers
2. 899 views
Name the subset of the real numbers to which each number belongsdivided 113
1. 2 answers
2. 767 views
Where in North America did the Mound Builders live?in the Southwest in the Northwest in the Central Mexico in eastern North
1. 4 answers
2. 724 views
When you are translating a number from scientific notation to standard form, what does the exponent tell you?The number of zeros
1. 3 answers
2. 1,373 views
1.What is 10^3 written in standard form10 100 1,000 10,000 Please check this, my answer will be the third choice
1. 2 answers
2. 490 views
What is the goal of technologyto understand the natural world to improve how devices operate to improve how people live THIS ONE
1. 14 answers
2. 2,141 views
order of operation16 divided by 4 . 2= I just did 16 divided by 4 which is 4 then multiply it by 2 which is 8 Am I right
1. 8 answers
2. 998 views
CHECK MY ANSWERS PLEASE1.9 squared is equivalent to ___ 18 9^2 81 both b and c this one
1. 1 answer
2. 555 views
Can anyone check my answers pleaseTrue or false 927 is divisible by 3 and 9 true 13,012 is divisible by 9 false 7,434 is
1. 28 answers
2. 7,488 views
Can anyone check my answers pleaseTrue or false 927 is divisible by 3 and 9 true 13,012 is divisible by 9 false 7,434 is
1. 5 answers
2. 1,271 views
You decide you will buy a stock only if it shows an overall increase over the next 30 days. The first 10 days, it has an average
1. 39 answers
2. 7,511 views
Amy is making a drawing of different things in her neighborhood. One house she drew is 30 feet wide. Her scale drawing of the
1. 9 answers
2. 806 views
Sarah flipped a pair of coins 60 times on 24 occasions, heads appeared on both coins. How is this outcome different from the
1. 3 answers
2. 1,697 views
What is one theme, or central of "Two Kinds"?Persistence is the key to success High expectations are the key to success
1. 23 answers
2. 5,269 views
How are the three types of intermomecular forces similar? How are they different?
1. 1 answer
2. 432 views
The isotope californium-252 has a half life of 162 days. How many days would it take for 61.7% of the original material to
1. 3 answers
2. 670 views
The isotope sodium-22 has a half life of 2.60 years. What is the 1st order rate constant in inverse years?I am using the Ln
1. 2 answers
2. 451 views
In abc, if ab =11 cm and bc =13 cm, what is the possible range of values for ac?
1. 1 answer
2. 404 views
Carlita saw 5 times as many robins as cardinals while bird watching. She saw a total of 24 birds. How many robins did she see
1. 1 answer
2. 565 views
when adding /25 and -9 which type of number is the sum?Plz help me
1. 1 answer
2. 643 views
What does it mean to say that a number is a perfect square? Give one example of a number that is a perfect square and one that
1. 56 answers
2. 16,612 views
Throughout the 1900s, many countries in Africa and Asia gained independence from European colonial powers. India is one of these
1. 5 answers
2. 990 views
15+37
1. 1 answer
2. 263 views
What is the solution to r/-3=12?
1. 4 answers
2. 2,392 views
What is the solution to 5q=-75?Please Help
1. 6 answers
2. 2,557 views
What is one change Mansa Musa brought to Mali?A) He sent all of the scholars out of the empire. B) He brought Christianity to
1. 6 answers
2. 2,357 views
BD bisects <ABC.Find m<ABD and m<ABC when BDC= 28
1. 1 answer
2. 624 views
10 MS. SMITH: {glossing over his misbehavior and adopting a serious tone as she hands Jason a piece of paper}Yes, ok. So, tell
1. 9 answers
2. 3,150 views
Are there any books that are about greedy people that change? Other than Christmas Carol because I'm trying to write a compare
1. 3 answers
2. 635 views
You roll a standard cube once. Find P(0)a) 7/6 b) 1 c) 1/2 d) 0
1. 39 answers
2. 6,049 views
What are some books that are about greedy people who change for the better?
1. 3 answers
2. 553 views
Shelly is working 250 math problems and she wants to finish in 6 days. If she works the same number of problems each day for 5
1. 1 answer
2. 636 views
An advertisement for a steel-belted radial tire states that this tire delivers 16% better gas mileage. If the present gas
1. 1 answer
2. 1,642 views
absolute value of 2x+15 less than or equal to -12x+15<-1 -15<-15 2x less than or equal to -16 x = -8
1. 1 answer
2. 393 views
What is the slope of a driveway that rises 1.1 metres over a length of 10.9 metres
1. 1 answer
2. 573 views
Solve for x9x+5=0
1. 2 answers
2. 359 views
What is an homograph.
1. 1 answer
2. 391 views
During a track meet Kelly throws the shotput 51 feet, 50 feet,and 58 feet. Write an expression that represents the length of her
1. 1 answer
2. 731 views
1) Which Geographic Feature most enabled people to cross the himalayas and other northern Mountains to settle the Indian
1. 20 answers
2. 1,846 views
Sodium!!S- O- D- I- U- M-
1. 4 answers
2. 471 views
There is an 8 meter tall hill with a circular radius of 20 meters. What is yhe minimum speed a car needs to momentarily lose
1. 1 answer
2. 465 views
10.Which Piece Of Evidence Supports a Loosening of Islamic Tradition In saudi Arabia? A)The Hijab B) Five Pillars C)Women
1. 6 answers
2. 917 views
A small fish is dropped by a pelican that isrising steadily at 0.44 m/s. After 2.6 s, what is the velocity of the fish? The
1. 0 answers
2. 526 views