Answer:
t = 6.5
Step-by-step explanation:
This is a Khan question
II
Initial Knowledge Check
A circle has a diameter of 32 mm. What is its circumference?
Use 3.14 for it, and do not round your answer. Be sure to include the correct unit in your answer.
2
וחו
כוחו
mm
32 mm
х
5
Marking Brainlyest
Answer:
C=3.14*32=100.48mm
Step-by-step explanation:
Answer:
100.48
Step-by-step explanation:
[tex]C=\pi D[/tex]
So,
C=3.14*32=100.48
Solve the system of equations 2 + 2y = -20 and x + 3y = -27 by combining the
equations.
Answer:
(6,-11)
Step-by-step explanation:
Carlotta thinks that 3y + 5y3 is the same as 8y4. Which statement shows that it is NOT the same?
3y + 5y ≠ 8y
3y + 5y3 = 8y3
3(4) + 5(4)3 ≠ 8(4)4
3(4) • 5(4)3 ≠ 8(4)4
Answer:
C. 3(4) + 5(4)³ ≠ 8(4)⁴
Step-by-step explanation:
3y + 5y³ is NOT the same as 8y⁴
Assume y = 4
Not equal to sign ≠
3y + 5y³ ≠ 8y⁴
3(4) + 5(4)³ ≠ 8(4)⁴
12 + 20³ ≠ 32⁴
12 + 8000 ≠ 1,048,576
8012 ≠ 1,048,576
The statement which shows that 3y + 5y³ is NOT the same as 8y⁴ is 3(4) + 5(4)³ ≠ 8(4)⁴
On a recent day,8euros were worth $11 and 32 euros were worth $44 .Enter an equation of the form Y = KX To show the relationship between the number of euros and value in dollars.let y be the value in dollars and x be the numbers of euros. The equation is y=? NEED HELP!!!! Hey
Answer:
1.3
Step-by-step explanation:
Question: On a recent day,8 euros were worth $11 and 32 euros were worth $44 .Enter an equation of the form Y = KX To show the relationship between the number of euros and value in dollars.let y be the value in dollars and x be the numbers of euros.
Notes:
8 euro= $1132 euro= $44Need: Enter an equation of the form Y = KX To show the relationship between the number of euros and value in dollars.let y be the value in dollars and x be the numbers of euros.
In Y = K X
| |
| numbers of euros.
value in dollars
Our first number: 8 euro = $11
Y=11
X=8
Then Convert:
11=K8
11=K*8 ---> 8*K=11
8K=11
11/8= 1.3
K=1.3
From your not so smart brainly user
A boat can travel 128.8 miles on 16.1 gallons of gasoline. How far can it travel on 9.4 gallons?
Last summer, 80 students signed up for a summer trip to Washington, D.C. This summer, 94 students signed up. To the nearest percent, what is the percent change in the number of students who signed up for the trip?
Answer:
18 %
Step-by-step explanation:
Last summer: 80 students
This summer: 94 students
94 - 80 = 14
14/80 x 100 = 17.5
rounded = 18%
Please help me this is my final!!!
Answer:
final for what?
Step-by-step explanation:
Answer:
171
Step-by-step explanation:
Okay since the exterior angles of every polygon is always 360
and this polygon has 40 sides,
360/40=9
180-9=171
Hope This helps
(what grade is this?)
A) Write the vertex form by substituting in values for x, y, h, and k, and then solve for a. Show your work. (10 points)
Answer:
[tex]a=-\frac{1}{8}[/tex]
Step-by-step explanation:
Given
See attachment for graph
Required
Write the vertex form and then solve for
The general equation is:
[tex]y = a(x - h)^2 + k[/tex]
From the attachment, the vertex is at:
[tex](h,k) = (24,50)[/tex]
i.e.
[tex]h = 24; k= 50[/tex]
Considering point:
[tex](x,y) = (4,0)[/tex]
i.e.
[tex]x=4;y=0[/tex]
Substitute these values in [tex]y = a(x - h)^2 + k[/tex]
[tex]0 = a(4 - 24)^2 + 50[/tex]
[tex]0 = a(- 20)^2 + 50[/tex]
[tex]0 =a(400) + 50[/tex]
[tex]0 = 400a + 50[/tex]
Solve for a
[tex]400a = -50[/tex]
Make a the subject
[tex]a=-\frac{50}{400}[/tex]
[tex]a=-\frac{1}{8}[/tex]
Answer:
y = a(x - h)^2 + k
h = 24, k = 50, x = 4, y = 0
0 = a(4 - 24)^2 + 50
0 = a(-20)^2 + 50
0 = a(400) + 50
0 = 400a + 50
400a = -50
a = - 50/400
a = - 1/8
Step-by-step explanation:
that's what i put copy and paste
PLS HELP Complete the table so that the numbers in each column represent the coordinates of a point on the graph
Answer:
1 is 1/2 5 is 2 1/2 and 7 would be 3 1/2
Step-by-step explanation:
4-6-5 3-5-4 2-8-?
Ok, can somebody please help me.
You need to find ?. This is not math this is brain game and i can't solve it!!!!
please help
Answer:
345678
Step-by-step explanation:
a scientist produces zinc iodine. This is the method used:
1.weight 0.500 g of iodine 2.dissolve the iodine in ethanol
3.add the excess of zinc
4. stir the mixture until there's no further change
5. filter the excess zinc
6. evaporate off the ethanol
explain why the scientist adds excess zinc rather then excess iodine
Mrs. Moore used the spinner below for a game played during Bear Time.
What is the probability that the next student to spin the spinner will get
blue?
Red Orange
Blue
Red
Red
Blue
Green Orange
1/4
1/2
O 1/8
O 3/5
Answer:
1/8
Step-by-step explanation:
yay
*
Determine if the following is a right triangle. Explain how you know.
Opoints
6
8
9
Answer:
Step-by-step explanation:
Are the sides consistent with the Pythagorean Theorem?
6² + 8² ≟ 9²
36 + 64 ≠ 81, so it is not a right triangle.
Billy had a pie that he baked.He cut it into 5/8 he then gave 2/8 away. How much of the pie did bill have left.
2. please help and i’ll give you brainliest if u get it right
EASY EXTRA POINTS HELP ASAP
Answer:
(-3, -8)
Step-by-step explanation:
The point is in the third quadrant, so both coordinates must be negative. -3 represents the x coordinate and -8 represents the y coordinate.
Students were asked to choose their favorite sport, and 7/9 chose either
basketball or soccer. If 5/9 of the students chose basketball, what fraction
chose soccer?
How can 2 fathers and 2 sons divide 3 automobiles among themselves with each receiving one?
Answer:
haha i know this riddle
Step-by-step explanation:
there is a guy and he has had a son, and his son has also had a son, so there are technically 3 guys, but 2 fathers and 2 sons
How many terms in this question?
Answer:
2?
Step-by-step explanation:
a and b are both terms
write 75m:125cm in its simplest form
Answer: should be 3/5
Step-by-step explanation:
Divide both the numerator and denominator by the GCD
75 ÷ 25
125 ÷ 25 if im wrong sorry
The ratio of 75m : 125cm in its simplest form is 60 : 1.
What are ratio and proportion?A ratio is a comparison between two similar quantities in simplest form.
Proportions are of two types one is the direct proportion in which if one quantity is increased by a constant k the other quantity will also be increased by the same constant k and vice versa.
In the case of inverse proportion if one quantity is increased by a constant k the quantity will decrease by the same constant k and vice versa.
Given, Two similar quantities.
We know 75m = 75×100 = 7500 cm.
Therefore, The ratio between them is,
7500 : 125.
1500 : 25.
300 : 5.
60 : 1.
learn more about proportion here :
https://brainly.com/question/7096655
#SPJ2
The sample for a study exhibits undercoverage bias. Select the statement that best describes the bias in the study. O There are not enough subjects in the sample.
O Many of the subjects in the study did not answer every question on the survey.
O The subjects in the study are not representative of the population, because some members of the population were not able to participate in the study.
O The subjects in the study are not representative of the population, because some members of the population refused to take part in the study.
Answer:
The subjects in the study are not representative of the population, because some members of the population were not able to participate in the study.
Step-by-step explanation: i got it right on the test
A sample is said to exhibit undercoverage bias, if some of the portion or category of the population are not adequately represented or exempted from the selected sample. Hence, undercoverage bias exists because, The subjects in the study are not representative of the population, because some members of the population were not able to participate in the study.
Undercoverage bias produces non - representative samples as some category of the population may have been exempeted from the study. Hence, option C is correct.Undercoverage translates that the opinion of some members of the population were not even considered. Hence, the introduction of undercoverage bias.
Learn more : https://brainly.com/question/21774717
What is the HCF of 130,325 and 845
Answer:
The HCF of 130, 325 and 845 is equal to 65.
Step-by-step explanation:
We need to find the HCF of 130, 325 and 845.
First, we see the prime factors of the above numbers i.e.
The factors of 130 are: 1, 2, 5, 10, 13, 26, 65, 130
The factors of 325 are: 1, 5, 13, 25, 65, 325
The factors of 845 are: 1, 5, 13, 65, 169, 845
Then the greatest common factor is 65. So, the HCF of 130, 325 and 845 is equal to 65.
if the length is 10 ft the width is 4 feet and the height is 8 feet what is the surface area
if you're solving for the surface area of a rectangular prism then it's 304 :D
find the perimeter and area. round to the nearest whole number if needed.
Can someone help please
the answer is x=47 hope this helps
Aiden bought 8 magazines that each cost the same amount. He paid a total of $21.12. How much did he pay for each?
Answer:
168.96
Step-by-step explanation:
21.12 x 8 = 168.96
Answer:
$2.26
Step-by-step explanation:
21.12/8
just divide
You have a coupon for an additional 10% off the price of any sale item at a store. The store has put a laptop on sale for 25% off the original price of $750. What is the price of the laptop after both discounts?
Answer:
$506.025
Step-by-step explanation:
$750 - 25% = $750 - $187.5
$562.25 - 10% = $562.25 - 56.225
31093÷14 with remainder
Answer:
31,093 / 14 = 2,220 R 13
Step-by-step explanation:
Answer:
2,220.9285714286 this is the answer of 31093÷14
If it is 2$ and it was 75 percent off what is the original price?
Answer:
$8
Step-by-step explanation:
If it's 75% of that mean 2=25%
multiply it by 4 to get 8
What is the slope of the line in the graph?
-4/3
-3/4
3/4
4/3
Answer:
-3/4
Step-by-step explanation:
If you take two points, the rise is 3. Also, the change in y is 4. Since the line is going downwards from left to right, it has to be negative.
the average mark of three pupils are 68. what is the ratio of 5:4:3. how many marks did the best student get? HELP ME!
Answer:
85, 68, 51
Step-by-step explanation:
Average: The sum of all the numbers divided by the number of numbers
If the ratio of the scores is 5 : 4 : 3, let's just set it as 5x : 4x : 3x
Then using the definition of an average, we can write this equation.
(5x + 4x + 3x) / 3 = 68
Multiply both sides by 3.
5x + 4x + 3x = 68 * 3
Simplify.
12x = 204
x = 17
Now, substitute x = 17 into the original scores (5x, 4x, and 3x)
5x = 5 * 17 = 85
4x = 4 * 17 = 68
3x = 3 * 17 = 51
Just in case, let's check this answer. Find the average of the 3 test scores.
(85 + 68 + 51) / 3 =
204 / 3 = 68
Thus, the answers are correct