Questions in Grade High-school

Questions in Grade High-school

[Done] Select the correct answer. Paula used these steps to solve an equation: Step 1: $-4(x+8)-2 x=25$ Step 2: $-4 x-32-2 x=25$ Step 3: $-6 x-32=25$ Step 4: $-6 x=57$ Step 5: $x=-9 \frac{1}{2}$ Between which two steps did Paula use the division property of equality? A. steps 1 and 2 B. steps 2 and 3 C. steps 3 and 4 D. steps 4 and 5

[Done] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Done] Read the excerpt from 'Jabari Unmasked' by Nikki Grimes: Fresh out of middle school, we all understand the rules: wear whatever's in, scowl on cue to convince the world we're fearless-anything to mask the million insecurities that pockmark our skin like acne. Gone the grins when we strut down the hall. We talk tough and hope to God it's enough to get us by. It's all lies. Which graphical elements are used in this excerpt? Check all that apply. A. very short lines B. punctuation C. enjambment D. right justification E. caesura F. left justification

[Done] Does the element [tex]$p=60$[/tex] belong to the set [tex]$\lbrace p \mid p=3x, 0 \leq x \leq 21, x \in W\rbrace$[/tex]? True False

[Done] The depth of snow after $n$ hours of a snowstorm is represented by the function $f(n+1)=f(n)+0.8$ where $f(0)=2.5$. Which statement describes the sequence of numbers generated by the function? A. The depth of snow was 0.8 inches when the storm began, and 2.5 inches after the first hour of the storm. B. The depth of snow was 1.7 inches when the storm began, and 0.8 inches of snow fell each hour. C. The depth of snow was 2.5 inches when the storm began, and increased by 0.8 inches each hour. D. The depth of snow was 3.3 inches when the storm began, and 2.5 inches of snow fell in 1 hour.

[Done] Which recursive formula can be used to generate the sequence shown, where [tex]f(1)=9.6[/tex] and [tex]n \geq 1[/tex]? [tex]9.6,-4.8,2.4,-12,0.6, \ldots[/tex] A. [tex]f(n+1)=(-0.5) f(n)[/tex] B. [tex]f(n+1)=(0.5) f(n)[/tex] C. [tex]f(n+1)=f(0.5 n)[/tex] D. [tex]f(n+1)=f(-0.5 n)[/tex]

[Done] For a standard normal distribution, find: [tex]$P(-2.56\ \textless \ z\ \textless \ 0.01)$[/tex] Express the probability as a decimal rounded to 4 decimal places.

[Done] In basketball, hang time is the time that both of your feet are off the ground during a jump. The equation for hang time is [tex]$t=2\left(\frac{2 h}{32}\right)^{\frac{1}{2}}$[/tex], where [tex]$t$[/tex] is the time in seconds, and [tex]$h$[/tex] is the height of the jump, in feet. Player 1 had a hang time of 0.9 s. Player 2 had a hang time of 0.8 s. To the nearest inch, how much higher did Player 1 jump than Player 2? $\square$ in.

[Done] While researching a topic, a student has taken the following notes: * Yoji Totsuka is a Japanese particle physicist. * Particle physicists study subatomic particles. * Neutrinos are some of the least understood subatomic particles. * Neutrinos were first discovered in the mid-twentieth century. * Totsuka is known for his discovery of atmospheric muon-neutrino oscillations. The student wants to provide an example of a particle physicist whose research focuses on neutrinos. Which choice most effectively uses relevant information from the notes to accomplish this goal? A. Particle physicist Yoji Totsuka is known for his discovery of atmospheric muon-neutrino oscillations. B. Neutrinos are a type of subatomic particle that particle physicists are still trying to understand. C. By studying atmospheric muon-neutrino oscillations—to name just one example—particle physicists can learn more about neutrinos. D. The research done on atmospheric muon-neutrino oscillations exemplifies the work particle physicists do to advance our understanding of subatomic particles.

[Done] ∫ e^x [log(sec x + tan x) + sec x] dx