Answer:
95
students in the seventh grade have taken swimming lessons.
Explanation:
We calculate
38
%
of
250
using the following formula:
x
=
250
×
38
100
x
=
25
0
×
38
10
0
(cancel by 10)
x
=
5
25
×
38
2
10
(cancel by 5)
x
=
5
×
19
38
1
2
(cancel by 2)
x
=
5
×
19
x
=
95
Step-by-step explanation:
ILL GIVE BRAINLIEST IF ITS RIGHT
Answer:
7) C) 7
8) D) y=-2x+3
Step-by-step explanation:
7) 3x-1/9(27)=18
3x-3=18
3x=21
x=7
8) y=-2x+3
Please, help me ,,,,,,,,,,,,,,,
Answer:
The correct answer is 80, 190
I NEED ANSWERS ASAP I GOT A 50
I dont understand you already answered
Answer: I would love to help you but this looks like a test am I'm sure it's to see where you are in learning all I can say is to try your best and if you don't know the answer looks at notes or whatever you have to help hope you have a good day lad.
find the area of triangle CDE the length of the square is 24 meters;
Answer:
288
Step-by-step explanation:
If you didnt know a triangle has the area of a square/2
so basically what im saying is the area of that square/2 equals the area of the triangle
to find the area of the square you take 24 and square it
24^2=576
finally we divide that by 2
576/2=288
so the area of the triangle is 288
have a great day :D
Select all the numerical expressions below that are equivalent to
[tex] \frac{ - 6}{3} [/tex]
Answer:
A, B, E
Step-by-step explanation:
You can put the negative sign on either the numerator or denominator (but not both) and you can also give the simplified answer -2.
Factor out the coefficient of the variable.
The expression 4h−3 factored is
Answer:
4
Step-by-step explanation:
because the variable is h and the constant is 3
There are 7 red marbles, 7 blue marbles, 7 yellow marbles, and 7 green marbles in a bag. If a person randomly selects 1 marble from the bag, what is the probability that the person selects a blue marble? (HOW DID YOU GET YOUR ANSWER, PLEASE SHOW ME YOUR WORK!!)
A. 0.75
B. 0.5
C. 0.25
D. 0.0625
Answer:
0.25
Step-by-step explanation:
You have 4 options:
1/4: red
1/4: blue
1/4: green
1/4: yellow
Combined equals a whole, so each one of them equals 0.25
A text book publisher wants to estimate the number of sentences per paragraph in a history textbook. The publisher count the number of sentences in 150 randomly selected paragraphs. The results are shown in the table. Based on the data what is the mean number of sentences per paragraph in the textbook?
A. 4
B. 5
C. 10
D. 15
Using the weighed mean, it is found that the mean number of sentences per paragraph in the textbook is given by:
B. 5
What is the weighed mean?The weighed mean is given by the sum of all elements in a data-set multiplied by it's weight, divided by the sum of the weights.
In this problem:
The sum of the values multiplied by it's weights is: 1 x 0 + 2 x 3 + 3 x 20 + 4 x 43 + 5 x 36 + 6 x 25 + 7 x 10 + 8 x 8 + 9 x 2 + 10 x 3 = 750.Considering that there are 150 books, we have the mean is:
M = 750/150 = 5.
Hence option B is correct.
More can be learned about the weighed mean at https://brainly.com/question/24398353
find the value of x cubed minus 2x squared minus 7x + 5 of x=1/2-√3
9514 1404 393
Answer:
3
Step-by-step explanation:
For f(x) = x^3 -2x^2 -7x +5 and x=1/(2-√3), we have ...
f(x) = ((x -2)x -7)x +5
and ...
x = 1/(2-√3) = (2+√3)/(2^2 -3) = 2+√3
Then ...
f(2+√3) = ((2 +√3 -2)(2 +√3) -7)(2 +√3) +5
= (3+2√3 -7)(2+√3) +5
= 2(√3 -2)(√3 +2) +5 = 2(3 -4) +5 = -2 +5
f(1/(2 -√3)) = 3
_____
If you really mean x = (1/2) -√3, then f(x) = (42√3 -3)/8.
Any idea on what the answer might. Be if u can explain would help alot
Answer:
pythagorean theorem!
Step-by-step explanation:
a²+b²=c² (normal)
a²=c²-b² (to find a)
[tex]a { = \sqrt{c {}^{2} } } - b ^{2} [/tex]
[tex]a = 38 ^{2} - 27 ^{2} [/tex]
[tex]a = \sqrt{1444 - 729} [/tex]
[tex]a = \sqrt{715} [/tex]
[tex]a = 26.7394839142[/tex]
helpppp i’ll give brainlest
find the approximate area of the shaded region
Answer:
240.52 m square is your answer
Answer:
B
Step-by-step explanation:
area of square=20×21=420 m²
diagonal=√(20²+21²)=√(400+441)=√841=29
radius=29/2
area of circle=π×(29/2)²=841/4 π≈660.52 m²
area of shaded region=660.52-420=240.52 m²
Kiana is saving for a new computer that cost $499. So far, she has earned 68 percent of the cost of the computer. How much more must Kiana earn.
Answer:
159.68
Step-by-step explanation:
68% of 499 is 339.32
499 -339.32=159.68
hope this helps
At a dinner, the meal cost $22 and a sales tax of $1.87 was added to the bill.
How much would the sales tax be on a $66 meal?
Please show work.
Answer:
It is 5.61
Step-by-step explanation:
22×3=66
1.87×3=5.61
A company want to find out if there is a linear relationship between indirect labor expense (ILE), in dollars, and direct labor hours (DLH). Data for direct labor hours and indirect labor expense for 25 months are given. Based on your results, If direct labor hours (DLH) increases by one hour, the indirect labor expense (ILE), on average, increases by approximately how much?
DLH(X) ILE(Y)
20 361
25 355
22 376
23 384
20 374
19 311
24 427.2
28 387.5
26 450.8
29 475.2
27 462.6
22 333.3
26 389.9
25 445
Answer:
11.88571
Step-by-step explanation:
Given the data :
DLH(X) :
20
25
22
23
20
19
24
28
26
29
27
22
26
25
Y:
361
355
376
384
374
311
427.2
387.5
450.8
475.2
462.6
333.3
389.9
445
Using a linear regression calculator, the linear equation obtained is : ŷ = 11.88571X + 109.92143
Where, 11.88571 represents the Coefficient of X, which is the slope, the change in direct labor hours per hour change in Indirect labor expense.
Plz help I will give you 40 points and Brainly
Answer:
sorry i don't knowe this, i realy want to help you
ill mark brainlist plss help
Answer:
option 1 is correct
Step-by-step explanation:
Can I plz have brainliest. thx :-)
Have a nice day!
Answer: Quadrilateral parallelogram, trapezoid; trapezoid
Step-by-step explanation:
A trapezoid has four sides so that makes it a quadrilateral, a parallelogram has at least two parallel sides (top and bottom), a lastly a it's a trapezoid and trapezoid has only one pair of parallel sides.
What combination of transformations is shown below
Answer:
rotation ,then reflection
This is a long question so look at the picture thank
you
Answer:
2 students
Step-by-step explanation:
.............
Colton finished his math homework at 8:27. He spent 32 minutes working
on it. What time did Colton start his homework?
classify each triangle
Answer:
See below
Step-by-step explanation:
9. Isosceles triangle
10. Right triangle
11. Equilateral triangle
12. Scalene triangle
13. Obtuse angle triangle
Solve by elimination:
3x + 4y = 0
5x-3y = -58
A (6, -8)
B (-6, -8)
C (-8, 6)
D ( 8, 6)
Answer:
x=−8
y=6=
Step-by-step explanation:
3x+4y=0
5x−3y=−58
In order to solve by elimination, coefficients of one of the variables must be the same in both equations so that the variable will cancel out when one equation is subtracted from the other.
3x+4y=0,5x−3y=−58
To make 3x and 5x equal, multiply all terms on each side of the first equation by 5 and all terms on each side of the second by 3.
5×3x+5×4y=0,3×5x+3(−3)y=3(−58)
Simplify.
15x+20y=0,15x−9y=−174
Subtract 15x−9y=−174 from 15x+20y=0 by subtracting like terms on each side of the equal sign.
15x−15x+20y+9y=174
Add 15x to −15x. Terms 15x and −15x cancel out, leaving an equation with only one variable that can be solved.
20y+9y=174
Add 20y to 9y.
29y=174
Divide both sides by 29.
y=6
Substitute 6 for y in 5x−3y=−58. Because the resulting equation contains only one variable, you can solve for x directly.
5x−3×6=−58
Multiply −3 times 6.
5x−18=−58
Add 18 to both sides of the equation.
5x=−40
Divide both sides by 5.
x=−8
The system is now solved.
x=−8,y=6
Coordinates are: (-8,6)
Graph:
Find the domain and range of the relation.
{(3,-2) (2,1) (-1,0) (1,3)}
A boat travels 102 miles in 5
hours (with a constant speed).
How far can it travel in 12 hours
(with the same speed)?
bvcdrtStep-by-step explanation:
REMOVE the outlier from the data, and then do the following: Round answers to the nearest
hundredths. 84, 71, 100, 88, 23, 100, 81, 93, 92, 100, 87,75.
5. Find the mean
6.
Find the median
7.
Find the mode
Answer:
outliar is23
Step-by-step explanation:
I think of a number, add on 15 and my answer is 8
Answer:
The number is -7
Step-by-step explanation:
x + 15 = 8
Answer:
the number is -7
Step-by-step explanation:
do the opposite( sum-number added)
8-15=-7
Write two numbers that multiply to the value on top and add to the value on bottom
Answer:
9 and 3
Step-by-step explanation:
if we multiply 9 and 3 we get 27
also when we add 9+3= 12
Please help! I will mark brainlist!
Answer: A
Step-by-step explanation:
Is the sequence 7, 9, 12, 16 geometric
Answer:
The sequence is not geometric or arithmetic because there is no common difference or common ratio between each term.
Tom hits golf balls at the driving range every 3 days, practices putting every 4days, and goes golfing every 6 days. If he did all three activities today, in how may days will he do all three activities again?
Answer:
12 days
Step-by-step explanation:
Trust me I did the work.
MO and PR are parallel lines. Which angles are alternate interior angles?
The angles that are alternate interior angles are; ∠ONQ and ∠MNQ
What is an alternate interior angle?Alternate interior angles are defined as the angles that are formed when a transversal intersects two coplanar lines.
Now, from the image of this MO and PR are parallel lines as seen online, it is clear that the angles ∠ONQ and ∠MNQ are alternate interior angles
Read more about Alternate Interior Angles at; https://brainly.com/question/24839702