Answer:
3.12mm= 31,2cm
3.12= 0.312m
3.12 = 0.000312km
A magazine collects these data measuring the battery life , in hours , of a sample of MP3 players : 5.7, 6, 6.1, 6.5, 6.8, 7.1, 7.4, 7.6, 8.1, 8.2 About how long does an MP3 player in the 50th percentile play ?
Answer:
the answer is 6.8
Step-by-step explanation:
The computation is shown below:
Since we have to determined the 50th percentile play
So,
= 50(nth value) ÷ number of observations
= 50(nth value) ÷ 10
= 5th value
= 6.8
Hence the answer is 6.8
The same is to be considered and relevant
Simple math! Please help!!!!
[tex] c.\:{x}^{ - 4} [/tex]
[tex]\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\orange{:}}}}}[/tex]
[tex] \frac{7 {x}^{4} }{7 {x}^{8} } \\ = \frac{ {x}^{4} }{ {x}^{8} } \\ = {x}^{4 - 8} \\ = {x}^{ - 4} [/tex]
Note:-
[tex] {x}^{m} \times {x}^{n} = {x}^{m + n} \\ {x}^{m} \div {x}^{n} = {x}^{m - n} [/tex]
[tex]\large\mathfrak{{\pmb{\underline{\orange{Happy\:learning }}{\orange{.}}}}}[/tex]
On a certain hot summer's day, 336 people used the public swimming pool. The daily prices are $1.50 for children and $2.50for adults. The receipts for admission totaled $613.00 How many children and how many adults swam at the public pool that day?
Let c represent the number of children ($1.75 each) and a represent the number of adults ($2.00 each).
We know that there were 340 people total, so c + a = 340. This implies that a = 340 - c
We also know that $1.75 c + $2.00 a = $609.25
By substituting a with 340 -c we have $1.75 c + $2.00 (340 -c) = $609.25
Use the distributive property to obtain $1.75 c + $680 - $2.00 c = $609.25
Subtract $680 from both sides and combine like terms to get - $0.25 c = - $70.75
Now, divide both sides by -$0.25 to get c = 283, the number of children.
The number of adults is 340 - c or 340 - 283 = 57
Answer:
227 children and 109 adults
Step-by-step explanation:
227*1.5+109*2.5=613
227+109=336
Find the area of the triangle. b 22 in h 4 1/2 in.
Answer:
22 times 4 1/2 divided by 2
The volume of a cylinder is 3,166.7 cm2. The radius of the base of the cylinder is 6 cm. What is the height of the cylinder?
Answer:
the height of the cylinder is 28cm
How do you write 0.0006363 in scientific notation?
Answer:
Step-by-step explanation:
Proper scientific notation means that there is only 1 number to the left of a decimal and everything else to the right of it. Also, because the number is initially less than 1, the exponent will be a negative one. We have to move the decimal 4 places to the right in order to get the 6 to the left of it, so in correct scientific notation format, we have
[tex]6.363*10^{-4[/tex]
Jimmy's Bakery sold 950 donuts last week. This week , the number of donuts sold increased 12%. How many more donuts were sold this week?
Plz slove if you can!
Can you find x?
Answer:
x=19 degree
2x=2*19
=38 degree
Step-by-step explanation:
Solve for the variable then find the missing angle.
What is the length of the missing leg?
someone help please
Answer:
7.76
Step-by-step explanation:
tan 29° = XY/14
XY = tan 29° (14)
= 7.76
Answer:
XY=7.76
Step-by-step explanation:
Tan25° says opp÷adj
so it's Tan29°=XY÷14
then multiply both sides by 14 to make CY the subject of the formula...
14×Tan29°=XY
therefore=XY=7.76
x^2=6x+1
rewrite the equation by completing the square your equation should look like (x+a)^2=b or (x-c)^2=d
What are the solutions to the equation?
Answer:
x=3+√10 or x=3−√10
Let's solve your equation step-by-step.
x2=6x+1
Step 1: Subtract 6x+1 from both sides.
x2−(6x+1)=6x+1−(6x+1)
x2−6x−1=0
For this equation: a=1, b=-6, c=-1
1x2+−6x+−1=0
Step 2: Use quadratic formula with a=1, b=-6, c=-1.
x= −b±√b2−4ac
2a
x=
−(−6)±√(−6)2−4(1)(−1)
2(1)
x=
6±√40
2
x=3+√10 or x=3−√10
x=3+√10 or x=3−√10
Let's solve your equation step-by-step.
x2=6x+1
Step 1: Subtract 6x+1 from both sides.
x2−(6x+1)=6x+1−(6x+1)
x2−6x−1=0
For this equation: a=1, b=-6, c=-1
1x2+−6x+−1=0
Step 2: Use quadratic formula with a=1, b=-6, c=-1.
x= −b±√b2−4ac
2a
x=
−(−6)±√(−6)2−4(1)(−1)
2(1)
x=
6±√40
2
x=3+√10 or x=3−√10Answer:
Step-by-step explanation:
It’s not G or J help please I can’t get it wrong again
Answer:
Look Im pretty sure key word pretty sure that it is F
Step-by-step explanation:
Find the roots of the following function:
y = x2 − 7x − 30
Answer:
x = 3, −10
Step-by-step explanation:
The roots (zeros) are the x values where the graph intersects the x-axis. To find the roots (zeros), replace y with 0 and solve for x.
Please help!
At Jefferson Middle School, 84 seventh-grade students have been to the zoo.This number is 75% of the total number of seventh-grade students. What is
the total number of seventh-grade students at Jefferson Middle School?
Answer:
Step-by-step explanation:63
This season, the probability that the Yankees will win a game is 0.6 and the probability that the Yankees will score 5 or more runs in a game is 0.57. The probability that the Yankees lose and score fewer than 5 runs is 0.34. What is the probability that the Yankees would score fewer than 5 runs when they win the game? Round your answer to the nearest thousandth.
The probability that the Yankees would score fewer than 5 runs when they win the game is 0.204 if the probability that the Yankees will win a game is 0.6
What is probability?It is defined as the ratio of the number of favorable outcomes to the total number of outcomes in other words the probability is the number that shows the happening of the event.
The probability that the Yankees will win a game P(win) = 0.6
The probability that the Yankees will score 5 or more runs in a game is:
P(s>5) = 0.57
The probability that the Yankees lose and score fewer than 5 runs is:
P(s<5) = 0.34
To find the probability that the Yankees would score fewer than 5 runs when they win the game:
This is the case of probabilities of one event and another event together we will multiply the respective probabilities of the event:
= P(win)×P(s<5)
= 0.6×0.34
= 0.204
Thus, the probability that the Yankees would score fewer than 5 runs when they win the game is 0.204 if the probability that the Yankees will win a game is 0.6
Learn more about the probability here:
brainly.com/question/11234923
Which of the following best describes a basic postulate of Euclidean
geometry?
O A. A circle measures 360°.
B. A circle can be drawn with any center and radius.
C. All lines continue indefinitely
D. All isosceles right triangles are similar.
find the surface area asap i’ll give brainliest
Answer:
The surface area of the prism is 544 in²
Step-by-step explanation:
Given;
base of the triangular prism, b = 12 in
side length, = 10 in and 14 in
height = 8 in
The surface area is calculated as follows;
S.A = 2(area of the triangular face) + area of the rectangualr faces
S.A = 2( ¹/₂ x 12 x 8) + 2(14 x 10) + 14 x 12
S.A = (96) + 2(140) + (168)
S.A = 96 + 280 + 168
S.A = 544 in²
Therefore, the surface area is 544 in²
Which of the following linear equations has the steepest slope?
Answer:
b
Step-by-step explanation:
This probability distribution shows the
typical grade distribution for a Geometry
course with 35 students.
Grade
A
B
с
DF
Frequency 5
10
15
3
2
Find the probability that a student earns a
grade of B.
p = [?]
Enter a decimal rounded to the nearest hundredth.
Answer:
0.29
Step-by-step explanation:
Total grade frequency = (5 + 10 + 15 + 3 + 2) = 35
Frequency of grade B = 10
Probability = required outcome / Total possible outcomes
Required outcome = frequency of grade B = 10
Total possible outcomes = total grade frequency = 35
P(B) = 10 / 35
P(B) = 0.2857
P(B) = 0.29
Find the value of x and the measure of the angle labeled 3xº.
72°
3x
42°
30°
I really need help!!!!!!!
Answer:
x=10 3x= 30
Step-by-step explanation:
3x = 30 since the angles are vertical angles
3x/3 = 30/3
x = 10
Answer:
B
Step-by-step explanation:
Set up an equation:
30 = 3x
Divide both sides by 3:
10 = x
x = 10 degrees
Plug the value of x into the angle:
3 × 10
30 degrees
Which box plot represents a data set with a lower quartile of 24 and an upper quartile of 42?
24
30 34
40 42
18
36 42 50
34
18 26 34 42 50 58 66 74 82 90
16 20 24 28 32 36 40 44 48
12
92
12 24 32 42
60
36 42 50
TT
10 20 30 40 50 60 70 80 90 100
0 8 16 24 32 40 48 56 64 72
Option D represents a data set with a lower quartile of 24 and an upper quartile of 42.
What is Statistics?Statistics is the discipline that concerns the collection, organization, analysis, interpretation, and presentation of data.
Quartiles are then selected as 3 points such that they create four groups in the data, each group approximately possessing 25% of the data.
The lower quartile, also called the first quartile has approx 25% in its left partition, and on its right lies approx 75% of the data.
Similarly, the second quartile (also called median) is approximately in mid of the data.
The third quartile has approx 75% in its left partition, and on its right lies approx 25% of the data.
Left to right is said in the assumption that data were arranged increasingly from left to right
Hence, the box plot that represents a data set with a lower quartile of 24 and an upper quartile of 42 from the given option is D.
Learn more about quartiles here:
brainly.com/question/9260741
#SPJ1
Solve for d.
3/2
= 5d
-1/2
Answer:
Step-by-step explanation:
3/2=5d-1/2 ( do cross multiplication )
3*2=2(5d-1)
6=10d-2
6+2=10d
8/10=d
4/5=d
0.8=d
n ΔHIJ, the measure of ∠J=90°, HJ = 21, JI = 20, and IH = 29. What ratio represents the cosine of ∠H?
Answer: The ratio represents the cosine of ∠H = [tex]\frac{21}{29}[/tex]
Step-by-step explanation:
Given, In right triangle ΔHIJ, the measure of ∠J=90°, HJ = 21, JI = 20, and IH = 29.
To find: The ratio represents the cosine of ∠H.
According to trigonometry, the cosine of x = [tex]\frac{\text{side adjacent to x}}{\text{Hypotenuse}}[/tex]
So cosine of [tex]\angle H=\frac{HI}{HJ}[/tex]
Cosine of [tex]\angle H=\frac{21}{29}[/tex]
hence, the ratio represents the cosine of ∠H = [tex]\frac{21}{29}[/tex]
Need help please and thanks :)
Answer:
See below.
Step-by-step explanation:
30 + 15c = 10 + 20c
15c - 20c = 10 - 30
-5c = -20
c = 4
When they both catch 4 criminals, they earn the same amount of money.
Find the value of x
Please help out!!
Answer:
x = 12
Step-by-step explanation:
(2x + 4) and (12x + 8) are same- side interior angles and sum to 180° , then
2x + 4 + 12x + 8 = 180
14x + 12 = 180 ( subtract 12 from both sides )
14x = 168 ( divide both sides by 14 )
x = 12
Natalie wants to buy a hoodie for $39.50.If the sales tax rate is 7%,what will be the amount of sales tax?
Answer:
2.77
Step-by-step explanation:
39.50x.07=2.77
Triangle XY Z has vertices X = (5, -1), Y = (1, 4), and Z=
(-8,0). Triangle X'Y'Z' is formed when triangle XYZ is
reflected over the y-axis. What are the coordinates of
triangle X'Y'Z'?
Answer:
see explanation
Step-by-step explanation:
Under a reflection in the y- axis
a point (x, y ) → (- x, y ) , then
X (5, - 1 ) → X' (- 5, - 1 )
Y (1, 4 ) → Y' (- 1, 4 )
Z (- 8, 0 ) → Z' (8, 0 )
What is the product of 4 square root 6 and 7 square root 18 in simplest radical form
Answer:
28√108
Step-by-step explanation:
4√6 * 7√18
28√108
Thank You
Hope u understand
Please mark as brainliest
What is the sum of interior angles of a 53-gon? Type just the number, no words, letters, or symbols
Answer:
S = 9180°
Step-by-step explanation:
Given the following data;
Number of sides = 53
To find the sum of interior angles of a 53-gon;
Mathematically, the sum of the interior angles in a regular polygon is given by the formula;
S = 180(n - 2)
Where;
n is the number of sides.
S is the sum of the interior angles
Substituting into the formula, we have;
S = 180(53 - 2)
S = 180 * 51
S = 9180°