Answer:
I think it is 1 student per 15 min
Step-by-step explanation:
In an activity, students are pulling marbles from a large jar containing blue and red marbles. In their sample, students will calculate the proportion of blue marbles. Which of the following sample sizes will have the largest sampling variability?
5
10
15
20
Answer:
5
Step-by-step explanation:
largest variability
If Tamair has $100 & gives $40 to her best friend Tsion, but Tsion gives $20 to Tamair, how much money does Tamair have left?
A) 90
B) 80
C) Tamair is broke
D) Tsion is broke
Answer:
B) 80
Step-by-step explanation:
Thats my bestie so dont mess with her or its gonna be a problem
Can someone help within 10 min Help plz
Answer:
-6x + y < 3
Step-by-step explanation:
After y = 3 the shading hits the y axis!
Brainliest Appreciated! Hope I helped!
A computers random number generator produces random integers from 1 - 50. What is the probability that the first three integers generated for single digit numbers
Answer:
9/50
Step-by-step explanation:
There are nine single digit numbers from integers 1-50 so in order to calculate the probability of getting 3 random numbers from 1-50 to be single digits:
Probability = number of favorable outcomes /total number of outcomes
Therefore Probability of getting 3 single digits randomly from 1-50 = 9/50
What is the area of figure ABCD?
(image of figure down below)
104 square inches
120 square inches
136 square inches
168 square inches
Answer:
a
Step-by-step explanation:
write 6 3/10 as a improper fraction
ASAPPPPP
Answer:
63/10
Step-by-step explanation:
Answer:
63/10
Step-by-step explanation:
6 3/10
see, from the denominator that means 10,
multiply to whole, then 10×6,
we got 60 right;
now add numerator 60+3 = 63
here we got improper fraction,
that is 63/10
what is the greatest common factor between 20 and 25
Answer:
5
Step-by-step explanation:
fill in the blank to show an example of the symmetric property:
If JK = ST, then _ = __
Jim is having a Halloween party for 60 children. He will give each child at least one candy bar. If each bag of candy contains 12
candy bars, which inequality gives the minimum number of bags, b, Jim will need to buy?
Yes
Answer:
5 bags of candy
Step-by-step explanation:
60/12= 5
Since there are 12 pieces of candy in each bag, 12*5= 60, so each kid can have 1 piece of candy.
Answer:
5<b
Step-by-step explanation:
Randall collects postcards that his friends
send him when they travel. He can put
6 cards on one scrapbook page. How
many pages does Randall need to fit
42 postcards? (SHOW YOUR WORK/STEPS)
Answer:
7pages
Step-by-step explanation:
42÷6= 7
You are dividing how many postcards you have with how many you can fit on one page. If you divide them, you will get your answer.
Randall needs 7 pages to fit 42 postcards.
What is the Least Common Denominator for the two fractions? 1/4 and 7/10
Answer:
1/4
Step-by-step explanation:
Answer:
20
Step-by-step explanation:
Find the value of x in the triangle shown below
Chose 1 answer
A. x = 2
B. x = 5
C. x = square root of 5
D. x = square root of 17
Answer:d
Step-by-step explanation:
Answer:
i think d
Step-by-step explanation:
it seems right
Find the equation of a line that passes through the points (-1,3) and (3,5). Leave your answer in the form y = m x + c
Answer:
⇒
y
=
−
2
x
+
13
Explanation:
You can use point-slope form to determine the slope
m
:
y
2
−
y
1
=
m
(
x
2
−
x
1
)
Given:
⇒
p
1
=
(
x
1
,
y
1
)
=
(
3
,
7
)
⇒
p
2
=
(
x
2
,
y
2
)
=
5,3)
Finding the slope:
3−7=m(5−3)−4=2m⇒m=−2
Step-by-step explanation:
Please help me solve these problems! I'll give you all my brain points. IM DESPERATE!!!
:-;
Answer: kg
Step-by-step explanation:
what two numbers' sum=-4 and product=-2
Let a and b be the two numbers. Then
a + b = -4
a b = -2
Solve the second equation for b :
b = -2/a
Substitute this into the first equation:
a - 2/a = -4
Multiply both sides by a :
a² - 2 = -4a
Move 4a to the left side:
a² + 4a - 2 = 0
Use the quadratic formula to solve for a :
a = (-4 ± √(4² - 4(-2))) / 2
a = -2 ± √6
If a = -2 + √6, then
-2 + √6 + b = -4
b = -2 - √6
In the other case, we end up with the same numbers, but a and b are swapped.
IS THIS CORRECT?
A 2 fl oz bottle of orange juice costs $8, and a 4 fl oz bottle of orange juice costs $12. Which is a better buy?
ANSWER= 4 fl oz bottle of orange juice that costs $12 is the better buy.
Answer:
yes 4fl oz bottle of orange juice that costs $12 dollars is better to buy
Step-by-step explanation:
2 bottles of orange juice=8$
if you split 8$, you get 4$ that means each bottles of orange juice is 4$
so if you get 4 bottles of orange juice it is 4$x4$= 16$ The question says that 4 bottles cost 12$ its supposed to be 16$. So the 4 fl oz bottle of orange juice that costs 12$ dollars is better to buy.
1 bottle=4$ 2x4=8$ (the first equation)
1bottle=4$ 4x4=16 (the second equation) But the question says we got the bottle of orange juice for 12$ its supposed to be 16$ that is a huge discount. so yes the answer is correct.
Find the domain and range please
Answer:
-2 is the domain
2 is the range.
What is the equation of the line that passes through the point (-4,-6)(−4,−6) and has an undefined slope?
Answer:
x = -4
Step-by-step explanation:
there is no y-intercept when slope is undefined
Undefined slope indicates a vertical line passing through the x-axis at the x-coordinate of any known point
At the beginning of the day there were 90 little fish in the pond.At the end of the day there were 52 little fish in the pond.Find the percent decrease from the beginning of the day to the end of the day.Round to the nearest percent. *
Answer:
42%
Step-by-step explanation:
The first step is to calculate the difference in the number of fishes from the beginning of the day to the end of the day.
90 -52
= 38 fishes
Therefore the percent decrease can be calculated as follows
= 38/90 × 100
= 0.422 × 100
= 42.2 %
= 42% ( to the nearest cent)
A 2-gallon jug of water costs $14.24. What is the price per quart?
Answer:
p
Step-by-step explanation:
p
Building A is 400 feet tall and Building B is 300 feet tall. Johnny is standing in between the two building. The angle of elevation from the point on the ground where Johnny is standing is 70 degrees to the top of Building A and 52 degrees to the top of Building B. How far apart are the two buildings
Answer:
389 feets apart
Step-by-step explanation:
Given that:
Building A
Height = 400feets
Angle of elevation = 70°
Building B:
Height = 300 feets
Angle of elevation = 52°
Distance from the foot of building A to where Jonny is standing = x (see attached picture)
Using trigonometry :
Tanθ = opposite / Adjacent
Tan 70 = 400/ x
2.7474774x = 400
x = 145.58809 feets
Distance from the foot of building B to where Jonny is standing = y (see attached picture)
Using trigonometry :
Tanθ = opposite / Adjacent
Tan 52 = 300/ y
1.2799416y = 300
y = 145.59
y = 234.38568 feets
x + y = distance between the two buildings
(145.58809 + 234.38568) feets
= 379.97377
= 380 feets apart
Does anyone know what to change to make line “p” and “q” parallel?
A hang-glider 25 meters above the ground started to descend (go down) at a constant rate of 2 meters per second. Which equation could be
used to determine the height h of the glider after t seconds of descent?
Answer:
Step-by-step explanation: h = -2t + 25
2t = the distance the glider will pass descending with constant speed of 2 m/s (distance = speed*time)
25 = the initial height that will decrease by the distance that the glider will pass while descending during time t
How much is 2% of 3.50
Answer:
.07
Step-by-step explanation:
3.50 * 2% = .07
or
3.50 * .02 = .07
For nitrogen to be a liquid, its temperature must be within 12.78 °F of –333.22 °F. Which equation can be used to find the maximum and minimum temperatures at which nitrogen is a liquid, x?
The equation that can be used to find the maximum and minimum temperatures is
Answer:
For nitrogen to be a liquid, its temperature must be within 12.78 °F of -333.22 °F. The equation |x + 333.22 | = 12.78 can be used to find x, which represents the maximum and minimum temperatures at which nitrogen is a liquid.
Hope this helps! :D
I need help with number 21 please help!!!
Answer:
This is not a direct variation.Step-by-step explanation:
Direct variation:
mathematical relationship between two variables that can be expressed by an equation in which one variable is equal to a constant times the other.
(y varies directly with x with a constant variation of k)
[tex]y=kx;\ k\neq0[/tex]
[tex]y=kx\qquad|\text{divide both sides by}\ x\\\\\dfrac{y}{x}=k\Rightarrow \dfrac{y}{x}=constant[/tex]
[tex]21.\\\\x=y+2\qquad|\text{subtract 2 from both sides}\\\\x-2=y\qquad|\text{divide both sides by}\ x\\\\1-\dfrac{2}{x}=\dfrac{y}{x}\ro\dfrac{y}{x}=1-\dfrac{2}{x}\neq constant[/tex]
help me please, if it's right i'll mark you brainliest :D
Find the area of the parallelogram.
Answer: i think it's 64
PLEASSSEEEE HELP ME FIGURE THESE OUT ILL GIVE YOU ALL MY POINTS!!!
Answer:
LOL i don't even know
Step-by-step explanation:
PLEASE HELP ME............THANKS
Answer:
i think it's c, I could be wrong djxndnxmmx
Answer:
{2,4,9,16}
Step-by-step explanation:
Range are the y values, which are on the right.
What is the slope of the line that passes through the points (4, 5) and (12, 7)?
Answer:
1/4
Step-by-step explanation:
To find slope, we use the formula rise over run (y2-y1 over x2-x1)
So first, our y's: 7-5=2
And our x's: 12-4=8
2/8 simplifies to 1/4