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Iris

Questions (87)

4/5 x 8/9 estimated
1. 1 answer
2. 192 views
Along the southern coast of Brazil the central plateau descends in high steep escarpments it towers over the waves and moves
1. 0 answers
2. 663 views
Which proportion can be used to determine what number is 15% of 30?15/30 = x/100 15/100 = x/30*** 15/100 = 30/x 30/100 = 15/x
1. 36 answers
2. 10,077 views
1. which proportion can be used to determine what number is 15% of 3015/30 = x/100 15/100 = x/30 15/100 = 30/x 30/100 = 15/x 2.
1. 19 answers
2. 4,794 views
NO ONE HAS ANSWERED1. How do microorganisms affect the quality of soil? by breaking down the remains of dead organisms*** by
1. 7 answers
2. 1,198 views
How do you write 24% as a decimal?2.4 0.24*** 0.024 How do you write 135% as a decimal? 1.35*** 13.5 0.135 How do you write 4%
1. 26 answers
2. 7,773 views
Please help guys ❤1) What is the GCF of 32 and 56? A) 2 B) 4 C) 8 D) 14 2) The highest temperature ever recorded in Death
1. 11 answers
2. 1,553 views
What is the LCM of 4 and 10?What is the GCF of 8 and 12?
1. 1 answer
2. 457 views
PLEASE DON'T JUST SHOW ANSWER PLEASE SHOW HOW TO DO IT PLEASEMrs. Walters drove 360 miles on 25 gallons of gas. Mr. Walters
1. 8 answers
2. 1,107 views
An urn contains 7 pink and 8 black balls. Five balls are randomly drawn from the urn in succession, with replacement. What is
1. 1 answer
2. 1,567 views
Each wheel on Harley's bike has a radius of 60 cm. How many revolutions does each bike make when Harley bikes 500 cm?A.
1. 3 answers
2. 1,206 views
Two triangles of the same shape are alwaysA. similar B. equilateral C. congruent D. equal
1. 2 answers
2. 1,159 views
An empty beaker weighs 20g and when filled with a liquid weighs 65g. The volume of the liquid is found to be 25cm³. Determine
1. 2 answers
2. 876 views
An empty beaker weighs 20g and when filled with a liquid weighs 65g. The volume of the liquid is found to be 25cm³. Determine
1. 4 answers
2. 1,217 views
If |x| = 11, |y| = 23, and |x-y| = 30, find |x+y|.Textbook answer: 20
1. 4 answers
2. 2,665 views
The cost of sending a package overnight is $14.40 for the first pound and $3.90 for each additionalpound or portion of a pound.
1. 1 answer
2. 833 views
Which of the following shows the correct notation for “The limit of x^2 - 1 as x approaches 3.A. lim x^2-1 x->3 B. lim3
1. 2 answers
2. 1,245 views
What is the correct notation for “The limit of x^2 - 1 as x approaches 3?Thank you
1. 0 answers
2. 388 views
How does the expansion of (x + y)n and (x - y)n differ? If you can offer an example that would be very helpful.Thank you
1. 1 answer
2. 537 views
Find P_(k+1) if P_(k)=2^(k-1)/k!(I used _ as a sign for a subscript) A. 2^(k+1)/(k+1)! B. 2^k/(k+1)! C. 2^(k+1)/k!+1 D. 2k/k!+1
1. 1 answer
2. 417 views
Which of the following shows the correct first step to prove the following by mathematical induction?3 + 11 + 19 + 27 + … +
1. 1 answer
2. 988 views
Find P + 1 ifPk = 7 + 13 + 19 + ...+[6(k - 1)+1] + (6k + 1) (the k+1 and k in front of the P are subscripts) A. 7 + 13 + 19 +
1. 1 answer
2. 342 views
Can someone please explain how eccentricity can be used to classify conics.
1. 1 answer
2. 451 views
Use a graphing utility to graph the polar equation shown below.r = cos 5Θ + n cos Θ, 0 ≤ Θ ≤ π For the integers n = -5
1. 1 answer
2. 1,168 views
How is close reading related to annotation? How are they similar?
1. 1 answer
2. 466 views
Convert to rectangular: 4=4sec thetaA. y=2 B. y=4 C. x=2 D. x=4
1. 1 answer
2. 376 views
Convert to rectangular: theta=(2pi)/3A. y=-sqrt3 B. y=-sqrt3x C. x=sqrt3 D. x=-sqrt3y
1. 1 answer
2. 452 views
Convert to rectangular: theta=2pi/3
1. 2 answers
2. 675 views
Which are examples of the use of parametric equations?A. Position of a person on a ferris wheel. B. Position of a ball after
1. 1 answer
2. 884 views
Which is the best example of the use of parametric equations?A. Measuring weight on the moon. B. Finding the position of a
1. 1 answer
2. 745 views
Can you please give and example of a hyperbola and ellipse with the same vertices and center that I can graph?Then explain the
1. 1 answer
2. 512 views
given: ((x-2)^2/9)+((y-4^2/16)=1what is the major axis?
1. 1 answer
2. 398 views
Why did Santa Anna attack the Alamo?A. It had a supply of gold. B. It was an important strategic location. C. It was his
1. 3 answers
2. 1,200 views
Which of the following would be the best first step when solving the following system using the substitution method?x - y = -4 ;
1. 1 answer
2. 1,024 views
find the angle between u=7i+2j and v=-4j
1. 2 answers
2. 349 views
Given: u <-1, 7> and v <4, -3> What is the measure of the angle between them?
1. 1 answer
2. 410 views
Given: u <-1, 7> and v <4, -3> Find: (u • v)(u + v)
1. 1 answer
2. 332 views
Find the dot product of: <-1, 7> and <2, ¾>.
1. 1 answer
2. 539 views
What is the unit vector of v: <-6, -8>?
1. 1 answer
2. 499 views
Given the vectors u = <−3, 7> and v = <5,1>, find 3u + 2v.
1. 1 answer
2. 1,759 views
Given tan(A) = 2 and A is in Quadrant I, find cos(2A).A. 0 B. 1 C. 1/2 D. -3/5
1. 1 answer
2. 707 views
Just confused. Given tan(A) = 2 and A is in Quadrant I, find sin(2A).A. 0 B. 1 C. 1/2 D. 4/5
1. 1 answer
2. 424 views
Given Tan(A) = 5 in Quadrant III and Sin(B) = ⅔ in Quadrant II, find Cos(A-B).
1. 1 answer
2. 609 views
Given Sin(A) = ⅗ and Cos(B) = 8/17 in Quadrant I, find Sin(A+B).
1. 0 answers
2. 465 views
A.Verify the identity.B.Determine if the identity is true for the given value of x. Explain. [cot(x) – 1] / [cot(x) + 1] = [1
1. 1 answer
2. 623 views
A.Verify the identity.B.Determine if the identity is true for the given value of x. Explain. Sec(x) / tan(x) = tan(x) / [tan(x)
1. 1 answer
2. 592 views
This question has me stuck. Use the Pythagorean identity sin^2 Θ + cos^2 Θ = 1 to derive the other Pythagorean identities, 1 +
1. 1 answer
2. 1,147 views
The Caddo were an American Indian group in Texas that practiced agriculture and build permanent houses. What can be inferred
1. 70 answers
2. 3,925 views
The Atakapans occupied the region from the Sabine river to theA. San Jacinto river B. Red river C. Colorado river D. Trinity
1. 19 answers
2. 3,915 views
Which of the following lists the start of the agricultural revolution according to absolute chronology?A. AD 500 B. after
1. 11 answers
2. 3,786 views
Which of the following statements best describes the domain of the functions sine and arcsin?A)Sine domain is all real numbers;
1. 1 answer
2. 701 views
Use a graphing utility to graph the function y = d + a sin (bx - c) for different values of a, b, c, and d. Write a paragraph
1. 1 answer
2. 1,449 views
You are given the value of tan Θ. is it possible to find the value of sec Θ without finding the measure of Θ? Explain.
1. 1 answer
2. 1,091 views
You read 50 pages in an hour. Your sister reads 40 pages in an hour. Explain how to find out how many more pages you read than
1. 6 answers
2. 604 views
The social unit most responsible for teaching the custom and traditions of a culture is?(A) The family (B) The government (C)
1. 14 answers
2. 1,170 views
Which number is equivalent to 14/4?A 3.2 , because 14 divided by 4 is 3 with a remainder of 2 B 3.5 because 14 divided by 4 is 3
1. 3 answers
2. 507 views
How can you evaluate scientific claims?NEED HELP!
1. 1 answer
2. 402 views
how can models help in science, why they are important, what and some examples of models.
1. 1 answer
2. 542 views
An 83-kg fireman slides down a fire pole. He holds the pole, which exerts 500-N steady resistive force on the fireman. At the
1. 1 answer
2. 1,276 views
Do all art paintings have culture in the paintings
1. 2 answers
2. 616 views
Need some help?How is the model of King Tut like other models used by scientists?
1. 5 answers
2. 585 views
A man holds a flower pot out a window 12m from the ground. He tosses the pot upward with a speed of 5m/s. How long does it take
1. 0 answers
2. 511 views
A projectile is shot at a speed of 30m/s at an angle of 50 degrees above the horizontal. The projectile hits a vertical wall at
1. 0 answers
2. 441 views
I'm a number grater than 45 but less than 90. I am an even number. i have 7 sets of the 16 ones. what number am I?
1. 0 answers
2. 365 views
A sound of constant frequency is produced by the si-ren on top of a firehouse. Compared to the frequen-cy produced by the siren,
1. 1 answer
2. 2,892 views
A marathon runner runs 3km in direction 0degree and them 4km in direction 90degree. total time for the race is 2 hours.so
1. 1 answer
2. 465 views
In addition to alkanes, cracking reactions may also involve alkenes, alkynes and aromatics. For each of the following reactions,
1. 2 answers
2. 736 views
How do I complete an ICE table for a solution of nitrous acid, HNO2, one of the acids associated with acid deposition?
1. 1 answer
2. 1,382 views
In chickens, the Leghorn variety has white feathers due to an autosomal dominant allele. Silkies have white feathers due to
1. 1 answer
2. 977 views
Hey how would you factor this polynomial to find the zeroes of this function?x^4-5x^3+7x^2+3x-10
1. 2 answers
2. 479 views
convert 33 miles/hour to meters/minute
1. 1 answer
2. 768 views
In a Scandal in Bohemia Dr. Watson says that Holmes A)has a Bohemian soul B)has the powers of a warlock C)sees but does not
1. 0 answers
2. 1,071 views
calculate the volumes of 0.10 M acetic acid and 0.20 M sodium acetate that are needed to prepare48-mL buffer solution with pH =
1. 0 answers
2. 560 views
*Explain the meetings that resulted in the Japanese seeing “Rolls-Royce, Rolls-Royce, Ford,” and how was this part of
1. 1 answer
2. 462 views
*Explain the meetings that resulted in the Japanese seeing “Rolls-Royce, Rolls-Royce, Ford,” and how was this part of
1. 2 answers
2. 420 views
Marley and Hassan rounded the number 7.483. Marleys answer was greater than 7.438. Marleys answer was greater than 7.483, and
1. 2 answers
2. 899 views
A 26 inch ribbon is cut into three pieces. One piece is 12 inches. The remaining two pieces must have one piece two inches
1. 3 answers
2. 1,024 views
PLEASE HELP! What amount of water could be heated from 20 degrees C to 50 degrees C by 714 kJ of energy?
1. 1 answer
2. 514 views
Battery Power Problem. A certain type of thermal batteryfor an airplane navigation device backup power has a mean life of 300
1. 2 answers
2. 535 views
The number of accidents that occur at the intersection of Pine and Linden streets between 3 p.p and 6 p.m. on Friday afternoons
1. 0 answers
2. 487 views
Hope Mom baked a cake in rectangular shape 10 by 6. If she starts at the corner and put acndle every 2 inches how many candles
1. 3 answers
2. 507 views
Hope Mom baked a cake in rectangular shape 10 by 6. If she starts at the corner and put acndle every 2 inches how many candles
1. 1 answer
2. 553 views
(4/3)^-2
1. 1 answer
2. 453 views
THE POWER OF A POWER RULE:__-5Y^4(Y^5)^2__ 15Y^7(Y^2)^3
1. 1 answer
2. 400 views
3) Distinguish between a term of an expression and a factor of an expression. Distinguish between an expression and an equation.
1. 1 answer
2. 569 views
(-8 -3 1/3) 1/3 2Can you show me the step by step on this problem? thank you,
1. 1 answer
2. 406 views
How do we write numbers in standard notation?
1. 1 answer
2. 624 views

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