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Grace
Questions and answers by
Grace
, page 4
Questions (498)
Solve the simultaneous equation:
x^2 + y^2 = 13 and x + 3y = -3
4 answers
1,697 views
By letting x=5^y, show that the equation p5^y + 5^-y = 5 can also be written as px^2-5x+1 = 0
3 answers
1,359 views
There is a unique parabola that goes through the points P = ( 1, 1), Q = (1, 1), and
R=(5,6) that can be described by y=ax^2
6 answers
1,281 views
On the sphere x^2+y^2+z^2 = 13^2, there are many great circles that intersect at (3, 4, 12).
Find coordinates for the other point
4 answers
1,184 views
One of the numbers increased by 10. How did the average of the two numbers change?
4 answers
1,347 views
Given: ∆ABC is isosceles
m∠ACB = 120° m∠BMC = 60° CM = 12 Find: AB M is on line segment PR
3 answers
570 views
Given: ∆ABC is isosceles
m∠ACB = 120° m∠BMC = 60° CM = 12 Find: AB M is on line segment AB
2 answers
992 views
Given: ∆PQR, m∠R = 90°
m∠PQR = 75° M ∈ PR , MP = 18 m∠MQR = 60° Find: RQ M is on segment PR 9sqrt3 is wrong(the
3 answers
712 views
Why western countries such as canada and britain favoured appeasing Hitler? Why did appeasement ultimately fail!
7 answers
567 views
Why do you think such widespread discrimination was socially acceptable back then and is not today?
1 answer
308 views
hi I reposted this question to see if I would get the answer the person who posted this one last time says that 9sqrt3 is wrong
2 answers
534 views
The illustration at right shows a rectangular box, three of whose edges coincide with the coordinate axes, and one of whose
3 answers
900 views
A person runs off a 10.0-meter high balcony in a horizontal direction at 5.0 m/s. The swimming pool is at ground level 5.5
7 answers
1,558 views
Water is being poured into a conical cup that is 12cm tall.
a) When the water in the cup is 9cm deep, what percentage of the cup
5 answers
asked by
Grace
4,267 views
Can anyone help me with this question: What is the time given to each longitude?
I don't understand what it means. Please help!
1 answer
388 views
Calculate the ph of a 1L solution to wgich has been added 25ml of 10mM acetic acid and 25ml of 30mM sodium acetate
3 answers
1,815 views
What was the importance of the inclusion of the bill of rights in the constitution?
a.It limited the power and controls the
6 answers
3,015 views
A ladder is 25 feet long and leaning against a vertical wall at 3 ft/sec. Suppose we wish to determine how fast the top of the
4 answers
1,911 views
x + y = 5
x^y + y^x = 17 Find x and y
3 answers
326 views
Why is the study of infrasound and ultrasound important?
1 answer
348 views
a △ b means (7-a)*(3+b). Find c if
3 △ 1=5 △ c Please help. Ms.Sue possible to answer??
2 answers
343 views
Mrs. Porter purchased 10 grapefruit and 20 plums. One grapefruit weighs the same as 3 plums. The weight of all 30 pieces of
4 answers
610 views
Mrs. Porter purchased 10 grapefruit and 20 plums. One grapefruit weighs the same as 3 plums. The weight of all 30 pieces of
2 answers
579 views
I need some help on some of these, finding which fraction it would be with clues. I answered some, but some I need help on:
1. My
3 answers
1,024 views
There are clues and a fraction you have to figure out which:
My denominator is 5 more than twice my numerator. I am equivalent to
1 answer
437 views
I'm trying to figure out which type of factorial ANOVA test to use for this data. The data is from a hypothetical study looking
1 answer
463 views
Pamela is 10 years younger then Jiri. The sum of their ages is 68. What is Jiri's age?
2 answers
793 views
A cannon is fired with a muzzle velocity of 24.6 m/s with the cannon barrel at an angle of 50.0 degrees with the horizontal.
1 answer
454 views
For the function:
a) integrate by hand to find the area under the curve btwn the given x-values b) verify your answer to part (a)
1 answer
397 views
Seven subtracted from five times a number, then the difference added to nine times a number.
3 answers
1,050 views
The substances in a(n) ___________ mixture are usually easily seen and separated.
A) homogeneous B) heterogeneous C) uniform D)
4 answers
1,175 views
1. A marble sculpture has been repaired and is ready for display. Which two special tests might work together to write a written
6 answers
1,936 views
witch soil layers contains the most humans
1 answer
326 views
What was the Peloponnesian war?
Please check my answer :) A) A conflict between Greece and Persia B) A conflict between Athens
4 answers
548 views
Which of the following rations is equivalent to 5/20?
A) 200 to 150 B) 3:5 C) 5/4 (my answer) D) 45 to 60
1 answer
376 views
What is the amount of sales tax owed on a $550 laptop computer at the tax rate is 7%?
A) $2.65 B) $22.60 C) $38.50 (my answer) D)
5 answers
1,291 views
John weighs 200 pounds. He lost 10% of his weight.
Then he gained back 10% of his weight. How much does John weigh now?
4 answers
467 views
An angel measures 53°. What are the measures of the angles comp meant and supplement?
A) Comlement, 37°; supplement, 137° B)
5 answers
863 views
The compare_and_swap() instruction (CAS) can be used to design lock-free data structures such as stacks, queues, and lists. The
3 answers
3,111 views
Does anyone know why does climate/water movement cause some parts of the ocean to be saltier than others? I'm stuck. Are there
5 answers
613 views
what is the mean median and mode of 13, 11, 16, 12, 42, 8
3 answers
658 views
Six reason for human Rights violation
1 answer
430 views
Determine the equilibrium constant, Ka of 0.12 mole HNO2 is dissolved to make 1 L which has a hydronium ion (Hydrogen ion)
1 answer
433 views
(0.5)to the second power + one eighth divided by one half
3 answers
358 views
A 600L water tank is full to the top. One day, it started leaking at a rate of 15L per hour, when it was half way, water is
4 answers
452 views
While mixing a light green paint, Luke mixes 35% blue paint and the rest is yellow. The green paint fills up two fifths of a
2 answers
716 views
What is the angle created by two pentagons, if one side of each pentagon is glued together? Answer: 144
3 answers
410 views
How much 60% concentrated cordial must be added to 90% concentrated cordial to make 6L of 80% cordial?
4 answers
532 views
Mandy finds she can get a discount on corn cobs if she buys in bulk. She can get 100 kilograms of corn cobs for $160 from Matt,
3 answers
2,468 views
Without a scale on a map,
A. many details must be omitted. B. only global trends can be captured. C. regional details can be
4 answers
2,310 views
Which scenario accurately depicts a way that maps are used as a reference tool?
A. A shopper consults a map to discern the best
3 answers
1,982 views
John draws a square on a coordinate plane. Then, he draws an image of the square 3 units to the right of the original square.
2 answers
576 views
John draws a square on a coordinate plane. Then, he draws an image of the square 3 units to the right of the original square.
5 answers
1,250 views
If AD=27, AC=2x, BC=3, and BD=x, what is x?
4 answers
316 views
What is the scale factor of a dilation centered at the origin that maps the point (12, -8) to the point (-7.2, 4.8)? Please show
2 answers
1,026 views
The coordinates of the vertices of △ABC are A(1,4), B(-2,-1), and C(-3,-2). The height h to side BC is √2, and b is the
4 answers
1,518 views
What is the scale factor of a dilation centered at the origin that maps the point (12, -8) to the point (-7.2, 4.8)?
4 answers
888 views
A 20g bullet moving at 200m/s hots a bag of sand and comes to rest in 0.011s. What is the momentum of the bullet just before
7 answers
3,454 views
okay so i really need the answers for the semester exam English9A Unit6 . I can’t find them anywhere please help.
1 answer
463 views
How do I differentiate y=x^3(3x+5)^7/2
1 answer
355 views
How does our sun’s 11 year sunspot cycle effect Earth?
3 answers
371 views
In my history class, we are currently learning about the Analects of Confucius and I was wondering what this quote means?
"Never
2 answers
518 views
What is the 50th time of the linear sequence below 27, 25, 23, 21, 19
2 answers
794 views
A pulley has a mechanical advantage of 1.
What does this tell you about the size and direction of the input and output forces?
7 answers
1,023 views
italicized word in which of the following sentences is a correct adverb form?
1.After falling during a race three weeks ago,
3 answers
1,391 views
Choose the appropriate pair of verb forms to fill in the blanks: Elle ___ grande et tu _____ petite.
5 answers
1,902 views
Find the value of:
12½%of ½kg PLEASE IT IS NEEDED URGENTLY. I DON'T WANT TO FAIL PLEASE.
4 answers
322 views
Edo:3,220,000
Kaduna:6,070,000. Express Edo as a percentage of Kaduna state
1 answer
259 views
A triangle has side's 8cm and 15cm and an angle of 90 degree between them calculate the smallest angle of the triangle with
4 answers
584 views
2.Use the following graph to estimate the rate of change of the function at x=0.5 using the points (−1,−1) and (1,3)
A.The
3 answers
791 views
A school is supplied with piped water from a water tank 1 km 125m away. If 225 pipes of equal length are to be used.What is the
5 answers
768 views
A sector of a circle of radius 6cm subtends an angle of 105 of the centre of the circle. Calculate
i. the perpendicular of the
7 answers
1,041 views
Erika spent 5/6 hours on her computer visiting two websites. She spent 1/5 of an hour at the first website. How many hours did
4 answers
797 views
Algebra
15ax+10a=5a()
1 answer
188 views
If objects fall with an acceleration of about 10 m/s2 on the Earth, how much would the acceleration be on the Moon's surface?
1 answer
225 views
A body of mass 2kg moving with velocity of 6m/s collides with a stationary object of mass 0.5kg. If the two bodies move together
4 answers
1,747 views
it snowed 14 in' in 5 hours. What is the unit rate
2 answers
671 views
We are making a sequence of triangles out of diamonds. The first three steps are complete. In each step a line of diamonds is
1 answer
357 views
What is marketing and thier authors
1 answer
341 views
A chemist has the following reaction
6ClO2 +3H2O -> 5HClO3 + HCl If a chemist wants 30.0 moles of HClO3, what is the minimum
1 answer
432 views
The first term of an Arithmetic progression is -5, find it's common difference if its last term is 31
3 answers
580 views
A rectangular prism has a length of 20 in., a width of 2 in., and a height of 3 1/4 in.
The prism is filled with cubes that have
5 answers
1,983 views
Positive tags of the following:
(1)It isn't raining. (2)You don't like coffee. (3)We mustn't tell her. (4)They will not help.
1 answer
283 views
Khanya builders are paid R480 for 8 hours of work,while rex builders are paid R660 for 12 hours of work.Which company is paid
4 answers
965 views
A large 2-topping pizza, L, costs $2 more than a medium 3-topping pizza, M.
3 answers
361 views
Which of the following statements is true for the sequence with general term a sub n equals the quotient of the product of the
1 answer
410 views
When Lithium reacts with Tin (ll) Sulfate, what are the products?
3 answers
340 views
Suppose a person absorbed 51 mrad of alpha radiation.What would be the equivalent dose in millisieverts?
4 answers
1,143 views
22.0 rad/s to rpm
1 answer
386 views
Use the given information to find the minimum sample size required to estimate an unknown population mean .
Margin of error:
1 answer
228 views
What is the conditional statement of the sentence?
For all real numbers a, b, and c, a = b implies that a−c=b−c. A. If a, b,
1 answer
302 views
If a wire 510 mm long is cut so that one piece is twice as long as the other piece how many mm is the shorter piece
1 answer
220 views
Sammy has a rectangular piece of cloth7/8 of a meter long and 4/5 of a meter wide. She decides to share the rectangular piece of
1 answer
309 views
The Byzantine Empire began as the eastern half of the old Roman Empire and expanded to include much of Rome’s Mediterranean
1 answer
248 views
Analyze the impact of risky teenage behavior on social,physical and emotional
1 answer
354 views
What is the binding energy of 1 mole of 239/94 Pu if the mass defect is 0.001896 kg/mol
3 answers
295 views
Find the value of log✓15+log2-log6-½
3 answers
257 views
Give the ratios of the length to breadth of a rectangle as 3:1, find the length, if the breadth is 5cm?
3 answers
278 views
Simpliy 2 whole number 2/3+1 whole number 3/4_2 whole number 1/2=
1 answer
176 views
Simplify 2 whole number 2/3+ 1 whole number 3/4_2 whole number 1/2
2 answers
147 views
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