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hannah
Questions and answers by visitors named
hannah
, page 4
Questions (468)
Lisa buys a carpet for $230. The price is $3.50 per square foot. If Lisa had a special discount of $50 off, which linear
1 answer
398 views
Three friends share the cost of a pizza. The base price of the pizza is p and the extra toppings cost $4.50. If each person’s
10 answers
2,209 views
One-fourth of the distance between two cities is 100 miles less than two-thirds the distance between the cities. Which equation
2 answers
813 views
. A tile setter is joining the angles of two tiles, A and B, to make a 90-degree angle. The degree measure of Angle A can be
6 answers
1,460 views
What are the reactants in the following chemical formula?
C6H12O6 + 6O2 �¨ 6CO2 + 6H2O
1 answer
943 views
Covalent bonds are not affected by chemical reactions.
true ir false
2 answers
548 views
Marshall has $1.25 in dimes, d, and nickels, n, in his pocket. Which equation could be solved to find the possible combinations
6 answers
445 views
Ms. Tweed earns $12 an hour. Deductions for taxes and insurance take 25 percent of her earnings. Which equation could be solved
3 answers
388 views
A garden supply store sells two types of lawn mowers. The cashiers kept a tally chart for the total number of mowers sold. They
3 answers
676 views
You have $22 in your bank account, and you deposit $11.50 per week. Your cousin has $218 in his bank account and is withdrawing
3 answers
944 views
A garden supply store sells two types of lawn mowers. The cashiers kept a tally chart for the total number of mowers sold. They
3 answers
976 views
is 3/8 more,less than or equal to 40%
3 answers
270 views
the 2 unequalities
-26<4k-2 and 2k-1<6 A. Write a compound inequality to combine the inequalities shown previously. and B. Solve
2 answers
799 views
How to solve 547X73
3 answers
315 views
How to solve 547X73
4 answers
1,108 views
by 10 there are 25 people admitted to a park by 11 there are 50 what would a slope of zero between 2 consecutive hours mean
and
3 answers
301 views
In a line with a slope of 1/2 a perpendicular to another line, the the slope of the is -2
true or false
1 answer
324 views
one line paasses through -3,-2 and -2,1 and another line passes through -1,2 and 2,1 what is the relationship between the lines
a
1 answer
358 views
wtite an equatiom of the line through 5,-3 and -2 and -8 in slope intercept form
1 answer
286 views
find an equation of the line that passess throught 0.-6 amd 5, 3
4 answers
354 views
last one
write an equation of the line that passess through 10,-4 and is perpendicular to the line whose equation is y=2/5x+8
3 answers
390 views
1. Marissa is a photographer. She sells framed photographs for $100 each and greeting cards for $5 each. The materials for each
3 answers
547 views
Isabella shipped a 5-pound package for $4. She shipped a 3-pound package for $3.60 and a 1-pound package for $3.20. A 10-pound
1 answer
423 views
What is a possible explanation of why China abandoned overseas exploration in 1435?
A. China could not develop advanced naval
2 answers
583 views
Sulfur has six electrons in its outer most energy level. In ionic bonding, it would tend to
2 answers
641 views
Which of the following involve electronic charges?
A. hydrogen bonds B. ionic bonds C. polar molecules D. all of the above
2 answers
474 views
Which of the following involve electronic charges?
A. hydrogen bonds B. ionic bonds C. polar molecules D. all of the above
1 answer
385 views
Sulfur has six electrons in its outer most energy level. In ionic bonding, it would tend to
4 answers
3,550 views
1. In an experiment, a scientist notices that an enzyme’s catalytic rate decreases when the pH of the environment is changed.
1 answer
517 views
2. How do enzymes impact biochemical reactions in the body?
A. Enzymes are catalysts to biochemical reactions. B. Enzymes lower
1 answer
779 views
an experiment, a scientist notices that an enzyme’s catalytic rate decreases when the pH of the environment is changed. Which
2 answers
609 views
Substance X is converted to substance Y in a chemical reaction. What role would a catalyst play in this scenario?
A. It would
2 answers
610 views
Enzymes in the human body work in a very wide range of conditions.
A. True B. False
4 answers
607 views
During road construction a section of rock is cleared which contains many fossils each shovel of rock removed from the trench
3 answers
431 views
There is a 10% chance it will rain on Saturday and a 30% chance it will rain on Sunday. What percent chance is there that it
3 answers
949 views
In a shipment of alarm clocks, the probability that one alarm clock is defective is 0.04. Charlie selects three alarm clocks at
2 answers
619 views
A cafeteria has 5 turkey sandwiches, 6 cheese sandwiches, and 4 tuna sandwiches. There are two students in line and each will
2 answers
591 views
1.The remains of an old campfire are unearthed and it is found that there is only 80% as much radioactive carbon-14 in the
4 answers
537 views
2. A bacteria population grows exponentially with growth rate k=2.5 how long it would take for the bacteria population to double
2 answers
608 views
3. The half-life of a certain drug in the human body is 8 hours how long it would take for a dose of this drug to decay to 0.1%
1 answer
387 views
A cars gas tank holds 15.2 gallons of gasoline (density = 0.66 g/ml). How many pounds of gasoline are present in a full tank?
1 answer
829 views
Which is the equation of the line that contains the points (0,3) and (-2,4)?
A. x+2y=6 B. 2x+y=3 C. 2x+y=0 D. x-2y=
1 answer
325 views
y-6 = -3(x + 1)
A. The slope is 3, and the y-intercept is -6. B. The slope is 3, and the y-intercept is 1. C. The slope is -3,
4 answers
307 views
There is a 10% chance it will rain on Saturday and a 30% chance it will rain on Sunday. What percent chance is there that it
1 answer
482 views
. There is a 10% chance it will rain on Saturday and a 30% chance it will rain on Sunday. What percent chance is there that it
5 answers
1,904 views
A builder has 8 lots available for sale.
· 3/4 Six lots are greater than one acre. · Two lots are less than one acre. answers I
3 answers
604 views
A cafeteria has 5 turkey sandwiches, 6 cheese sandwiches, and 4 tuna sandwiches. There are two students in line and each will
6 answers
1,542 views
. Which of the following is the best example of an inverted sentence?
A. “All that breathe/Will share thy destiny. . . .” B.
5 answers
493 views
Oxygen becomes part of cellular respiration _________________.
A. at the end of glycolysis B. at the end of the electron
5 answers
648 views
Before entering the Krebs cycle, an intermediate molecule bonds to a 2-carbon molecule. This intermediate complex enters the
4 answers
1,493 views
what is the derivative of y=ln (1-x^2)^1/2
so its hard for me to write all of my work on here but i got 1/2(1-x^2) as my answer
1 answer
338 views
a car rental company charges a flat rate of $29 per day and an additional $0.15 per mile. Write an equation to model the total
2 answers
590 views
Stephanie is working on a graph that represents the path of a roller coaster. The point (0, 840) represents the point at which
2 answers
972 views
Find the change in the force of gravity between two planets when distance between them is decreased by 12
2 answers
752 views
True or false;
1.Lenders gain when inflation is higher than expected. 2. Lenders lose when inflation is higher than expected 3.
3 answers
1,960 views
True or false;
1.Lenders gain when inflation is higher than expected. 2. Lenders lose when inflation is higher than expected 3.
1 answer
851 views
When Joe started his job at the laundromat 5 years ago, his wage was $4.50 an hour. Today his wage is $6.50 an hour. If Joe
3 answers
1,536 views
Which of the following accurately characterizes the distribution of real GDP per capita internationally?
5 answers
624 views
X+3÷9-X^2
1 answer
274 views
Match the process with the fundamental interaction responsible for this process.
1)A falling object slows down from a great speed
1 answer
1,194 views
A moon orbits a planet in the xy plane, as shown in the figure. You want to calculate the force on the moon by the planet at
3 answers
1,703 views
One mole of titanium (6 1023 atoms) has a mass of 48 grams, and its density is 4.54 grams per cubic centimeter, so the
4 answers
4,552 views
The given curve is rotated about the y-axis. Find the area of the resulting surface.
y = 3 − x2, 0 ¡Ü x ¡Ü 4
5 answers
1,562 views
what is the sum from 1 to infinity of ( 3n^3 - 4n^2 + 5)/(6n^5-2n+7)
1 answer
266 views
What is the equation of the line that passes through (-2, 2) and (1, -4)?
1 answer
314 views
A square pyramid has sides of 8 m. Each face is an equilateral triangle.
What is the lateral area of the pyramid?
4 answers
1,714 views
A horizontal spring-mass system has low friction, spring stiffness 210 N/m, and mass 0.6 kg. The system is released with an
3 answers
849 views
A picture frame is 18 inches long and 8 inches tall. It is 2 inches wide on all 4 side. What is the area of the picture frame?
4 answers
1,279 views
A regular hexagon has sides of 5 feet. What is the area of the hexagon
2 answers
600 views
The base of a rectangular prism is 6 inches - 9 inches. what is the lateral area of the prism
3 answers
1,174 views
george has been hired to paint the smtihs house. he need to be sure that his ladder reach the highest point of the house, so he
1 answer
437 views
a rectangle is inscribed in the upper half of the circle x^2+y^2=a^2 calculate the area of the largest such rectangle.
So A=2xy
3 answers
865 views
which of the following is true about the function g(x)= 4x^2 - 3x^4?
a)g is decreasing for x<1 b) g has a relative extreme value
4 answers
701 views
find d/dx of the integral from 1 to 2x of the (sqrt t^2+1)dt at x=sqrt2
the answer is 6. but i am not sure how to find d/dx. i
3 answers
349 views
Two identical small spherical conductors (point charges), separated by 0.6 m, carry a total charge of 200 mu or micro CC. They
1 answer
598 views
A barge is hauled along a straight-line section of canal by two horses harnessed to tow ropes and walking along the tow paths on
4 answers
1,720 views
the expression that is equivalent to -2(x - 7).
3 answers
903 views
A 755 N diver drops from a board 10.0m above the water's surface.Find the diver's speed 5.00 m above the water's surface. Then
4 answers
11,210 views
Calculate the number of moles of ZnCl2, in 100. mL of 0.600M solution.
3 answers
428 views
sharon completed her reading homework in 2/3 hour.she completed her science homework in 5/6 hour. how much longer did it take
4 answers
770 views
Find the inverse of A = [−5 2 2; −3 1 1; −9 3 4]
4 answers
689 views
Which of the following homogeneous systems have a nontrivial solution?
5x+ y + 5z =0 −2x + 2y− 4z = 0 4x− 3y + 6z = 0 can
1 answer
350 views
If possible, solve the following linear systems by Cramer's rule.
2x1 + 4x2 + 6x3 = 14 x1 + 2x3 = 0 2x1 + 3x2 − x3 = 30
2 answers
648 views
For what values of a and b are the vectors
[ a − b −3] and [7 a + b] equal?
1 answer
340 views
If possible, find an example of actual numbers c1, c2, and c3, not all zero, so that the following is true.
c1[3,3,−1] +
7 answers
761 views
Question Part
Points Submissions Used 1 –/2.35 0/100 Total –/2.35 ... Janet wants to find the spring constant of a given
2 answers
772 views
Let
L: R2 �¨ R2 be a linear transformation for which we know that L(1 1)= [-2 1] L(-1 1)=[3 2] a)what is L(-1 5) b)what is L(u
4 answers
1,583 views
You are testing the claim that the mean GPA of night students is less than the mean GPA of day students.
You sample 45 night
4 answers
2,551 views
A speed skater moving across frictionless ice at 9.0 m/s hits a 5.3 m -wide patch of rough ice. She slows steadily, then
4 answers
2,043 views
3(y+2) for y = 3
5 answers
205 views
where Amanda lives the sales tax is 7%. Amanda paid $35 in sales tax on a new stereo. what was the price of
the stereo?
1 answer
381 views
please help!!
which number is the solution of x/4=-5? a. 20 b. 1.25 c. -1.25 d. -20
1 answer
249 views
Which of the following state program areas consumes the largest part of the executive budget? (1 point)
human services education
10 answers
2,276 views
the supplement of an angle is 20 degrees less than 3 times its complement. find the ratio of the supplement to the complement.
2 answers
505 views
The ramp shown below is used to move crates of fruit to loading docks of different heights. When the horizontal distance AB is
4 answers
1,555 views
A blue car pulls away from a red stop-light just after it has turned green with a constant acceleration of 0.2 m/s2. A green car
3 answers
673 views
Given that A= 4.00i(hat)+ 10.0j(hat)and B = 3i(hat)-5.00j(hat), find the
magnitude and directions(i.e., angle with respect to the
1 answer
436 views
was the murder of Franz Ferdinand the main cause of ww1
Due on 24/2
4 answers
604 views
A family is building a circular fountain in the backyard the yard is rectangular and measures 6x by 7x and the fountain is going
3 answers
993 views
If the bike wheel is rolled along the ground 10 inches, through what angle does the wheel rotate?
5 answers
1,095 views
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