Answer:
7/2
Step-by-step explanation:
Mrs. Alberts has two seventh grade math classes this year. They took their final exam, and Mrs. Alberts just finished grading them. She made a box-and-whisker plot for each class in order to compare their results.
Analyze the box-and-whisker plots from above and then select the following comparative inferences that are true. Select all that apply.
1. The interquartile range of Class A is about twice as large as the interquartile range of Class B.
2. There is very little overlap in the two data sets.
3. The median of Class A is about 5 points higher than the median of Class B.
4. The range of Class B is about 12 points less than the range of Class A.
5. A student in Class B had the highest score of both classes.
6. In general, the students from Class B scored better than the students from Class A.
Answer:
these are true = 1, 3, 5
Step-by-step explanation:
overall class a scored better than class b
they're more students in class a compared to class b
Hello could someone please help me with this and explain how to do it thank you:) 7n= 301
answer:
n=43
Step-by-step explanation:
Divide both sides by 7:
[tex]\frac{7n}{7}=\frac{301}{7}[/tex]
simplify: n=43
Which system of equations has infinitely many solutions?
A
4x+2y=8
4x−2y=8
B
4x−2y=8
−4x+2y=−8
C
4x+2y=8
4x+2y=10
D
4x+2y=8
−4x−2y=−10
Answer: B.
[tex]4x - 2y = 8\\-4x + 2y = -8[/tex]
Step-by-step explanation:
Let's solve your system by elimination.
4x−2y=8;−2x+2y=6
Add these equations to eliminate y:
4x-2y=8
-2x+2y=6
2x=14
Substitute 7 for x in 4x−2y=8:
(4)(7)−2y=8
−2y+28=8 (Simplify both sides of the equation)
−2y+28+−28=8+−28 (Add -28 to both sides)
−2y=−20
−2y/−2=−20/−2 (Divide both sides by -2)
y=10
What is the value of 2x + 3y when x = 5 and y = 2?
A. 6
B. 7
C. 12
D. 16
E. 19
Answer:
16
Step-by-step explanation:
8.
Which of the quadratic functions has the narrowest graph?
A. y = 1/9x2
B. y = –x2
C. y = 1/4x2
D. y = 4x2
Answer:
D: y = 4x^2
Step-by-step explanation:
The graph for which the absolute value of the coefficient of x is largest has the narrowest graph. That takes us immediately to D: y = 4x^2.
I need help with this question please help me
Triangle PQR is similar to triangle STU, where P, Q, and R correspond to S, T, and U,
respectively. In triangle PQR, the length of PQ is 2 and the length of QR is 8. In triangle STU,
the length of ST is 9. What is the length of TU?
9
11
18
36
Answer:
TU=36
Step-by-step explanation:
use the side lengths of PQR to determine the proportionality of the two triangles. 9/2=4.5 so, multiply 8 by 4.5 to find TU.
PLEASE HELP, MARKING BRAINLIEST !!!
What is the surface area of the prism ?
Answer: 1726
Step-by-step explanation:
A=2(wl+hl+hw)
A=
2
w
l
h
l
h
w
=
2
6.5
29
19
29
19
6.5
=
1726
h + 9.2 = -9.2 what is h =
Answer:
h = - 18.4
Step-by-step explanation:
h + 9.2 = - 9.2
h + 9.2 - 9.2 = - 9.2 - 9.2
h = - 18.4
Answer:
-18.4
Step-by-step explanation:
Fixed it : )
plzzz help mee! asap
Answer:
22
Step-by-step explanation:
Please answer this math question for me
Answer:
Hello! answer: e = 103 f = 77
and I don't really know what d is sorry! but If I had to guess id say 90
The roof of a turret is shaped like a cone. The base of the cone is 30 m across and the height is 8 m. The slant height of the roof, which is unknown, is the hypotenuse of the right triangle formed with the radius and the height of the cone.
(a) Sketch the roof of the turret. Label all lengths, using x as the unknown.
(b) What is the slant height of the roof? Answer:
Answer:
Solution given:
base=diameter [d]=30m
radius [r]=d/2=15m
height [H]=8m
slant height [l]=xm
we have
∆ ABC is a right angled triangle
base[b]=r
perpendicular [p]=H
hypotenuse [h]=x
by using Pythagoras law
h²=p²+b²
x²=H²+r²
x²=8²+15²
x=√289
x=17m
the slant height of the roof is 17m.
Work out the size of an exterior and an interior angle of a regular 18-sided polygon.
Answer:
160 and 20 degrees
Step-by-step explanation:
What is the average amount of milk used for an order of pancakes? Enter your answer as a fraction or mixed number in simplest form.
Complete question :
What is the average amount of milk used for an order of pancakes? Enter your answer as a fraction or mixed number in simplest form.
1/2c, 1/4c, 1/2c, 3/4c, 1/2c, 3/4c, 1/2c, 1/4c, 1/2c, 1/2c
Answer:
1/2c
Step-by-step explanation:
Taking the sum :
1/2c + 1/4c + 1/2c + 3/4c + 1/2c + 3/4c + 1/2c + 1/4c + 1/2c + 1/2c = 6/2c + 2/4c + 6/4c
6/2c + 2/4c + 6/4c
3/1 + 1/2 + 3/2 = (6 + 1 + 3) / 2 = 10 /2
= 5
Total number of orders = 10
Average = 5 / 10 = 1 /2 c
Sharon needs 3 pounds of turkey for every 2 people
that are attending her dinner party.
How many people can she feed with 30 pounds of
turkey?
Answer:
20
Step-by-step explanation:
30 ÷1.5
each person eats 1.5 pounds
A bag contains 6 marbles, chosen randomly from a bin of red and green marbles. What is the probability that the bag contains at most 1 red marbles?
Answer:
1/6
Step-by-step explanation:
Since There are 6 marbles in total and possibly one red marble than its 1/6.
Im not sure if that makes sense but i hope it does :)
Need help with school please
Answer:
11. <7.
12. <1.
13. <6.
Step-by-step explanation:
Same place
Outside and opposite
Inside and opposite
According to the histogram, how often has Illinois had between 19 and 36 tornadoes in the same year?
Answer:
9 times
Step-by-step explanation:
Answer:
9 times
Step-by-step explanation:
i got 100%
Find the determinant:
- 4 5
7 3
Answer:
-47
Step-by-step explanation:
To get the determinant of a 2x2 matrix,
Step 1: Multiply the top left and bottom right numbers
Step 2: Subtract it by the top right number times the bottom left number
(-4*3)-(7*5)
=-12-35
=-47
What type of triangle is this triangle?
acute isosceles
obtuse isosceles
Right isosceles
acute scalene
Answer:
obtuse isosceles
Step-by-step explanation:
An obtuse triangle has one angle measuring more than 90º but less than 180º (an obtuse angle). It is not possible to draw a triangle with more than one obtuse angle. Note: It is possible for an obtuse triangle to also be scalene or isosceles. An equiangular triangle has three congruent angles.
Which one is an example of an answer that has no-solutions? *
Answer:
3 = 6
Step-by-step explanation:
Please help will give brainliest if correct. What’s the equation of line a?
Answer:
y = 14/5x + 2
Step-by-step explanation:
is seems as though the y-intercept would be 2 and the slope is 2.8 which is
2 4/5 or 14/5
therefore, equation would be y = 14/5x + 2
1.
Calculate the volume of the following cylinders.
Radius = 10 cm
Height = 20 cm
Answer:
2000pi
Step-by-step explanation:
V of a cylinder = Area of the base × height
Area of a circle = pi × r^2
A = pi × (10)^2 = 100pi
V = 100pi × 20 = 2000pi
Eighteen students passed the Science Test. If 18 students is 72% of the total number of students in the class, how many students are in the class?
Answer:
There are 25 students in the class.
Step-by-step explanation:
Let the total number of students in the class= x
No. of students who passed the test = 18 = 72% of x = 72x/100
Therefore, 72x/100=18
=72x=18*100=1800
=x=1800/72= 25 students.
Hence, total number of students in the class= 25 students
Rewrite in vertex form y=x2+2x+6
Answer:
y = (x+1)^2+5
Step-by-step explanation:
Add or subtract from both sides to complete the square;
y=x^2+2x+6; Subtract 5 from both sides
y-5 = x^2+2x+1; Factor;
y - 5 = (x+1)^2; Add 5 back to both sides;
y = (x+1)^2+5
Answer:
y=(x+1)²+5
Step-by-step explanation:
y=x^2+2x+6
a=1; b=2;c=6
subtract 6 from both sides: x^2+2x= -6
complete the square by using the equation (b/2)^2 and add to both sides: x^2+2x+1=-6+1
simplify: x^2+2x+1=-5
find the factors of 1 that add up to 2: 1 and 1
(x+1)(x+1)=-5
add 5 to both sides and simplify
y=(x+1)^2+5
need the answer to this
Answer:
the second answer choice i think
Step-by-step explanation:
the angles of the quadrilateral are 135º, 135º, 45º, 45º which is the same as the answer choice
What is the value of the expression -9 x 2.2?
Martika surfs with her friends at Virginia Beach. Her friend, Mark caught 8 waves out of 20 possible waves to ride in the shore. They plan to stay out in the water for 50 more waves. How many of the 50 waves do you predict Mark will catch?
Answer:
40 waves
Step-by-step explanation:
Prob (Mark catches waves) = Times waves caught / Total waves = 8 / 20 = 4 / 5 = 20%
Predicted waves out of 50 , caught = 4 / 5 or 20% of 50 = (4 / 5) x 50 = 40
Alternatively, multiplying numerator & denominator of wave catch probability ie 4 / 5 with 10 each , we get (4 x 10) / (5 x 10) = 40 / 50 . This also signifies 40 out of 50 waves are predicted to be caught.2x + 4y = 16
3x - 2y = 8
solve using SUBSTITUTION METHOD ONLY!
PLS ANSWER QUICK !!!
Answer:
x = 4, y = 2
Step-by-step explanation:
3x - 2y = 8
-2y = -3x + 8
y = 3/2x - 4
2x + 4(3/2x - 4) = 16
2x + 6x - 16 = 16
8x = 32
x = 4
3(4) - 2y = 8
12 - 2y = 8
-2y = -4
y = 2
HELP RIGHTTT AWAYYYYY PLSSSSSS
Answer:
64 pretzels = 16 oz
16 pretzels = 4 oz
1 pretzel = .25 oz
4 pretzels = 1 oz
Step-by-step explanation:
If you know that 64 equals 16 ounces than you can divide 64 by 16 to get 4. This means that one ounce equals four pretzels. Then you can multiply 1 oz by 4 and 4 pretzels by 4 to get 16 pretzels that equal 4 oz. If 4 pretzels equals 1 oz then 1 pretzel equals 1 oz divided by 4.