Answers
Related Questions
Students in Ms. Singh's class had the following scores on their last quiz.
85, 83, 68, 77, 72, 95, 87, 75, 73, 55, 82, 85, 91, 86, 92, 78, 85, 86, 79, 82
Part A
What was the median score of Ms. Singh's 20 students?
Median =
Answers
The median score of Ms. Singh's 20 students is 82.5
What are mean and median?The mean is the average value which can be calculated by dividing the sum of observations by the number of observations
Mean = Sum of observations/the number of observations
A Median represents the middle value of the given data when arranged in a particular order.
We are given the Students in Ms. Singh's class had the following scores on their last quiz.
First, we have to arrange the given data in an ordered manner. Thus:
55, 68, 72, 73, 75, 77, 78, 79, 82, 82, 83, 85, 85, 85, 86, 86, 87, 91, 92, 95
The median = the average of the 10th and 11th data
Median = (82 + 83) ÷ 2
Median = 165 ÷ 2
Median = 82.5
Learn more about mean and median;
https://brainly.com/question/17060266
#SPJ2
what is seven squared as an exponetial expression
Answers
Answer:
7^2
Step-by-step explanation:
A bag contains an assortment of marbles.
3 marbles are swirled
8 marbles are striped
2 marbles are spotted
A marble will be randomly selected from the bag. What is the probability that the marble selected will NOT be a striped marble?
F 5/13
G 1/8
H 5/8
J 8/13
Answers
Answer:
5/13
Step-by-step explanation:
because the total of marbles is 13
take away the striped ones and u get 5/13
Help please!!!! Question is in picture!!!!
Answers
Answer:
y=36degrees
Step-by-step explanation:
74+2y+34=180
2y+108=180
2y+108-108=180-108
2y=72
72/2
y=36degrees
Answer:
Step-by-step explanation:
Because these are supplementary angles they must have a sum of 180 degrees.
74+2y+34=180
2y+108=180
2y=72
y=36 degrees
Chris wrote a equation and the first step of his solution process, as shown. what math operation did Chris apply in his first step
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Patrick usually drinks 90 ounces of water each day. On Saturday, he spent the day out on the boat so decided to drink 140 ounces of water. What is the percent increase
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Answer:
5555.55556
Step-by-step explanation:
a% over 100 and 50 over 90
EMERGENCY PLEASE HELP!!
Consider the functions represented by the graph and table shown below.
The rate of change of the function in the graph is _____ that of the function in the table by _____ unit(s)
Blank 1 options: less than, or greater than
Blank 2 options: 1, or 2
Answers
Answer:
24 61.
Step-by-step explanation:
hope it helps you.
Mr. Armstrong went to Target to buy four pairs of dress socks. There was a 30% off sale
on the socks, and his total bill before tax was $14. What was the price of each pair of socks
before the sale?
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Answer: $5
Step-by-step explanation:
We should note that since there was a 30% off sale, it means that he paid for 70% (100% - 30%) of the sales price.
Therefore, let the price of the socks be represented as x.
70% of x = 14
70/100 × x = 14
0.7 × x = 14
0.7x = 14
x = 14 / 0.7
x = 20
Therefore, the price of the socks was $20. Since there are 4 pairs, each pair will be:
= $20 / 4
= $5
Write the equation of the line graphed below.
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please helpp meeeeeeeeeeeeeeeeer
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Answer:
sinA = 12/13, cosA = 5/13, tanA = 12/5
sinB = 5/13, cosB = 5/13, tanB = 5/12
Step-by-step explanation:
Answer:
Step-by-step explanation:
Use SOH CAH TOA to recall how the trig functions fit on a triangle
SOH: Sin(Ф)= Opp / Hyp
CAH: Cos(Ф)= Adj / Hyp
TOA: Tan(Ф) = Opp / Adj
Sin(A) = 12/13
Sin(B) = 5/13
Cos(A) = 5/13
Cos(B) = 12/13
Tan(A) = 12/5
Tan(B) = 5/12
If Carla runs across the park along the diagonal instead of along the streets, how many yards of running will she save?
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Answer:
how big is the park? 20 feet??? 50???? 80???
Plot three points on the graph of function f. f(x)=–3(x - 2)^2 + 1
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Answer:
Step-by-step explanation:
x | y
-4 | 13
-3 | 4
-2 | 1
-1 | 4
0 | 13
A ball is thrown into the air with an upward velocity of 44 ft/s. It’s height h in feet after t seconds is given by the function h=-16t^2 +44t+5. How long does it take the ball to reach its maximum height? What is the balls maximum height?
Answers
9514 1404 393
Answer:
1.375 seconds35.25 feetStep-by-step explanation:
A quadratic function y=ax^2 +bx +c is symmetric about the vertical line x=-b/(2a). That is the x-coordinate of the vertex (maximum or minimum).
Here, we have ...
h = -16t^2 +44t +5
t = -44/(2(-16)) = 11/8 = 1.375
It takes 1.375 seconds for the ball to reach its maximum height.
The height at that time is ...
h = (-16(11/8) +44)(11/8) +5 = (-22 +44)(11/8) +5 = 121/4 +5 = 141/4 = 35.25
The maximum height is 35.25 feet.
Five books and four pens cost $800. One book costs $120. How much does one pen cost?
Answers
The customer had a coupon for a 6% discount on a $12 (whole) meal. What is the total that she paid?
Answers
Answer:
$11.28
Step-by-step explanation:
12 x 0.06= 0.72
12.00 - 0.72=11.28
A Ferris Wheel has a radius of 16 feet. How far will you travel if you take a ride that goes around 5 times? Round answer to the nearest hundredth and for pi use π = 22 7 .
Answers
Answer:
502.85 feet
Step-by-step explanation:
Given that,
The radius of a Ferris wheel, r = 16 feet
We need to find how far will you travel if you take a ride that goes around 5 times.
Distance = 5×2πr
So,
= 10πr
[tex]=10\times \dfrac{22}{7}\times 16\\\\=502.85\ \text{feet}[/tex]
So, the required distance is 502.85 feet.
PLEASE HELP I ASKED THIS QUESTION YESTERDAY AND NOBODY ANSWERED.
Answers
Answer:
b
Step-by-step explanation:
i think
Find the value of X and the value of Y.
A) x=9, y=18 square root 2
B) x=18, y=18
C) x=9 square root 2, y=18 square root 2
D) x=9 square root 3, y=18
Answers
Given:
A figure of a triangle.
To find:
The values of x and y.
Solution:
From the given triangle it is clear that the base angles of the triangle are equal, so the triangle is an isosceles triangle.
Altitude on the base of the isosceles triangle from from the opposite angle is a median. It means, it divides the base in two equal parts.
In the given triangle, the altitude divides the base in two equal parts and the measure of each part is 9 units.
In a right triangle,
[tex]\cos \theta=\dfrac{Base}{Hypotenuse}[/tex]
[tex]\cos 60^circ=\dfrac{9}{y}[/tex]
[tex]\dfrac{1}{2}=\dfrac{9}{y}[/tex]
[tex]1\times y=9\times 2[/tex]
[tex]y=18[/tex]
And,
[tex]\tan \theta=\dfrac{Perpendicular}{Base}[/tex]
[tex]\tan 60^\circ=\dfrac{x}{9}[/tex]
[tex]\sqrt{3}=\dfrac{x}{9}[/tex]
[tex]9\sqrt{3}=x[/tex]
Therefore, the correct option is D.
Answer:
D.
Step-by-step explanation:
What integer would represent "32 degrees below zero"?
Answers
Answer:
-32
Step-by-step explanation:
Please give me branliest!
Graph the equation.
y = 4(x + 6)(x+4)
Answers
Answer: thanks for posting an easy question that requires no skill or stress
Step-by-step explanation:
Write an equation whose graph is a line perpendicular to the graph of x = -7 and which
passes through the point (-7,1).
Answers
Answer:
y = 1
They will pass through each other perpendicular, also you can look up graph in chrome and use a free graph.
Step-by-step explanation:
The equation of the line perpendicular to the graph of x = -7 and which passes through the point (-7,1) is y=1.
What is an equation?An equation is formed when two equal expressions are equated together with the help of an equal sign '='.
As the equation x=-7 will represent a straight verticle line at x=-7. Therefore, the line that will perpendicular to this line will be a horizontal line. Since it is given that the line must intersect at (-7,1). The horizontal line should be at y=1.
Hence, the equation of the line perpendicular to the graph of x = -7 and which passes through the point (-7,1) is y=1.
Learn more about Equation:
https://brainly.com/question/2263981
to get the number of atoms in a formula ____ the total subscripts. Please help! Giving brainliest
Answers
Answer:
[tex]\huge\boxed{\sf Add}[/tex]
Step-by-step explanation:
To get the total number of atoms in a compound, we should add the subscripts to get the total number.
For example:
[tex]\sf C_6H_{12}O_6[/tex] (Glucose)
Add the subscripts of the compound:
=> 6 + 12 + 6 = 24
Hence, Glucose has 24 atoms in its compound.
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807Answer:
Add
Step-by-step explanation:
“Use the graph or table to write a linear function that relates y to x”
Answers
Answer:
8)y=2x-3
9)y= -1/2+4
Step-by-step explanation:
Find the value of x and y! Also their given relationship. Ty!
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Answer:
x = 3, y = 30.4
Step-by-step explanation:
From the given diagram;
8x - 3 = 6x+3 (alternate exterior angle are equal)
Collect like terms
8x - 6x = 3 + 3
2x = 6
x = 6/2
x = 3
Also;
8x - 31 + 5y + 35 = 180 (sum of angle on a straight line is 180)
8(3) - 31 + 5y + 35 = 180
5y + 24 - 31 + 35 = 180
5y + 28 = 180
5Y = 180 - 28
5Y = 152
y = 152/5
y = 30.4
Hence x = 3, y = 30.4
Need help ASAP!! What is the value of x?
Answers
Answer:
98
Step-by-step explanation:
the exterior angle is equal to the sum of the opposite interior angles
-Sumin <3
Answer:
98
Step-by-step explanation:
53+45+x = 180
53+45=98
180-98=82
82 (interior)
82+98=180
x = 98
You have $80 in your bank account each week plan to deposit $9 from your allowance and $25 from your paycheck. The equation b=80+(25+9)w gives the amount b in your account after w weeks. How many weeks from now will you have $315 in your bank account?
There will be $315 in the account after _weeks.
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315 = 80 + (25 + 9)w
315 = 80 + 34w
Subtract 80 from both sides
235 = 34w
Divide both sides by 34
w = 6.9117
So I would answer 7 weeks.
A = 1
2 × (15 + 20) × 16
B = 1
2 × 15 × 20 × 10
C = 1
2 × (15 + 20) × 10
D = 1
2 × (10 + 16) × 20
Answers
Answer: a
Step-by-step explanation:
Please help with number 1,2,3 it will mean a lot !!
Answers
A : (-6,-2) Third Quadrant
B : ( 3, 1 ) First Quadrant
C : (-3, 4) Second Quadrant
D : ( 5,-3). Fourth Quadrant
E : (0,-6). Fourth Quadrant
F : (-4, 0). Second Quadrant
G : (0, 2). First Quadrant
H : (0, 7). First Quadrant
2)
The y-intercept you’re going to have to make a point where the red line connects to the top line
The x-intercept you’re going to have to make a point where the red line connects to the line on the right
The y axis is the line basically going from top to bottom like this l
The x axis is the line going from side to side like this -
And the origin is the center point of the whole grid , or the center of the cross like symbol
3)
for this question the only pair that works is (6,0)
I hope this helps you can text me through here if an answer is unclear
Answer:
1.
A=-6,-2 Q 3
B=3,1 Q 1
C=-3,4 Q 2
D=5,-3 Q 4
E=0,-6 Q 4
F=-4,0 Q 2
G=0,2 Q 1
H=7,0 Q 1
2. See 2nd pic
3. (6,0)
Step-by-step explanation:
1. See the first pic
2. Second pic
3.
2a-4b=12 Try the first set of pairs
2(1)-4(-3)=12 (2*1)-(4*-3)=12
2-(-12)=12 2-(-12)=14 This is incorrect
Now the second pair
2(0)-4(-1)=12
0-(-4)=12 This is incorrect
Next...
2(6)-4(0)=12
12-0=12 Yay! Its correct!
P.S I know the second pic is very blurry and I apologize, I couldn't show you how with a different graph
Factor.
X^2 - 11x + 28
Answers
Answer:
=(x-7)(x-4)
Explanation:
x^2-11x+28
x^2-7x-4x+28
(x^2-7x)+(-4x+28)
x(x-7)-4(x-7)
=(x-7)(x-4)
Savannah has a principle of 15000 with a 4.25% and saves 1,275 in interest. How long is she saving for
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Answer:
5.73 years
Step-by-step explanation:
Considering she saved 4.25% in each year of the amount $15000.
So, we have to calculate in what time her saving reaches $1275, if she save each year.
it becomes question of simple interest in which
SI = $1275, Principal P= $5000, time T, rate R = 4.25%
we know SI = PRT/100
1275 = 5000×4.25×T/100
⇒T = 1275×100/(5000×4.25)
⇒ T= 5.73 years