Answer:
9 students in music class.
Step-by-step explanation:
In art there are 4 and since there are 8 more 8 + 4 = 12. so there are 12 in Art.
4 x _ = 12. —> 4 x 3 = 12.
so we need to do the same for music class.
For music there are 3.
so we multiply by 3 like we did with the 4.
3 x 3 = _ —> 3 x 3 =9.
so there are 9 students in music class.
Tali picks a shape. What is the chance she picks a gray shape?
Answer:
3/8
Step-by-step explanation:
hope this helps
pls mark as brainliest
Select the tables that show a proportional relationship between x and y.
Table 2 depicts the proportional relationship between x and y as 2/5 = 4/10 = 6/15.
What is meant by proportional relationship?A proportional relationship exists when each pair of data values is related in the same way, by multiplying by a factor. A proportional relationship can be identified by looking at data, an equation, or a graph. Calculating the ratio of each pair of values can tell you if a table has a proportional relationship. If all of those ratios are the same, the table indicates a proportional relationship. Now consider an example of a proportional relationship in our daily lives: When we fill up our car with gas, there is a connection between the number of gallons of fuel we put in the tank and the amount of money we will have to pay.Therefore,
1x / y
Simplifying the equation, then we get,
1/4 = 2 /8 = 3 / 12 = 6 / 24
= 2 / 8
y l x
Put the value of x and y in above equation,
4/1 = 8 /2 = 12/3
8/2
2, x/ y
5/2 = 10 /4
= 15 /6
30 /12
5 / 2
y l x
2/5 = 4 /10 = 6 /15
Hence, Table 2 depicts the proportional relationship between x and y as 2/5 = 4/10 = 6/15.
To learn more about proportional relationship, refer to:
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please help me with this question.
Five Times the difference of a number and 3 is 17
The number is 6.4.
What is Algebra?Algebra is the part of mathematics that helps represent problems or situations in the form of mathematical expressions.
Given:
Five Times the difference of a number and 3 is 17.
let the number be x
So,
5(x-3) = 17
5x - 15 = 17
5x = 32
x= 32/5
x= 6.4
Learn more about algebra here:
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Find the coordinate of W' after a 270 counterclockwise rotation of the triangle about the origin and then a translation of 2 units down and 1 unit to the right.
Answer: d: -2,2
Step-by-step explanation:
The coordinates of W' after the rotation and the translation is (-2, 2).
Option D is the correct answer.
We have,
The rule for a rotation by 270° about the origin.
(x, y) → (y, −x)
Now,
W = (-4, -3)
Applying the rule.
W = (-3, 4)
Now,
A translation of 2 units down and 1 unit to the right.
So,
W = (-3, 4)
W = (-3 + 1, 4 - 2)
W = (-2, 2)
Thus,
The coordinates of W' after the rotation and the translation is (-2, 2).
Learn more about translation here:
https://brainly.com/question/12463306
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a line through (2, 1) meets the curve x²-2x-y=3 at A(-2,5) and at B. FIND THE COORDINATES OF B
Answer:
(3,0)
Step-by-step explanation:
We know the line will Pss through
(-2,5) and (2,1) so
let find the slope
[tex] \frac{1 - 5}{2 - ( - 2)} = \frac{ - 4}{4} = - 1[/tex]
So the slope is -1.
We know it passes through 2,1 so use point slope to find b.
[tex]y - 1 = - 1(x - 2)[/tex]
[tex]y - 1 = - x + 2[/tex]
[tex]y = - x + 3[/tex]
Set that equal to
[tex] {x}^{2} - 2x - y = 3[/tex]
[tex] {x}^{2} - 2x - 3 = y[/tex]
[tex] {x}^{2} - 2x - 3 = - x + 3[/tex]
[tex] {x}^{2} - x - 6 = 0[/tex]
[tex](x - 3)(x + 2) = 0[/tex]
[tex]x = 3[/tex]
Point (3,0).
X squared -11 X +24 equals zero
Answer:
x=3, 8
Step-by-step explanation:
x²-11x+24=0 can be factored to
(x-3)(x-8)=0
3-3=0
8-8=0
So, x can be 3, 8
This problem illustrates the limit derivation of a Poisson distribution from Binomial distributions. Suppose an average of 6 arrivals occur during a 30 minute interval. To count arrivals, divide the 30 minute interval into n sub-intervals. Enter the probability p of one arrival during a single sub-interval.
For n = 30, we have p =
For n = 60, we have p =
For n = 100, we have p =
Continued from previous.
Answer:
I need help with mathematics please
Please help with the bonus. I beg
Answer: (8x8=64) (64÷8=8) (8+7=15)
Step-by-step explanation:
pls ans this.....i will mark brainliest.
Answer:
[tex]y=\dfrac{10}{3}[/tex]
Step-by-step explanation:
[tex]\left(\dfrac25\right)^{-3} \cdot\left(\dfrac52\right)^{-15} =\left(\dfrac25\right)^{2+3y}[/tex]
[tex]\textsf{Using exponent rule:}\left(\dfrac{a}{b}\right)^{-c} =\left(\dfrac{b}{a}\right)^{c}[/tex]
[tex]\implies \left(\dfrac25\right)^{-3} \cdot\left(\dfrac25\right)^{15} =\left(\dfrac25\right)^{2+3y}[/tex]
[tex]\textsf{Using exponent rule: } a^b \cdot a^c=a^{b+c}[/tex]
[tex]\implies \left(\dfrac25\right)^{-3} \cdot\left(\dfrac25\right)^{15} =\left(\dfrac25}\right)^2 \cdot \left(\dfrac25\right)^{3y}[/tex]
[tex]\implies \left(\dfrac25\right)^{12} =\left(\dfrac25}\right)^2 \cdot \left(\dfrac25\right)^{3y}[/tex]
[tex]\implies \left(\dfrac25\right)^{12} \div\left(\dfrac25}\right)^2 =\left(\dfrac25\right)^{3y}[/tex]
[tex]\textsf{Using exponent rule: } \dfrac{a^b}{a^c}=a^{b-c}[/tex]
[tex]\implies \left(\dfrac25\right)^{10} =\left(\dfrac25\right)^{3y}[/tex]
[tex]\textsf{Using exponent rule: } a^b=a^c \implies b=c[/tex]
[tex]\implies 10=3y[/tex]
[tex]\implies y=\dfrac{10}{3}[/tex]
10g–7g–3=18
please answer windowssssssssssss i will give you branilisest only
Answer:
g=7
Step-by-step explanation:
10g–7g–3=18
subtract 7g from 10 g
3g-3=18
add 3 to both sides
3g=21
divide each side by 3
g=7
Answer:
g=7
Step-by-step explanation:
We move all terms to the left:
10g-7g-3-(18)=0
We add all the numbers together and all the variables
3g-21=0
We move all the terms containing "g" to the left and all the other terms to the right
3g=21
g=27/3
which is the same as
g=3
a home improvement store in ohio had some great deals on garden supplies, if 81 customers visited the store in the morning and 5/9 of them picked up garden tools, how many customers bought garden tools
Answer:
45
Step-by-step explanation:
5/9 of 81 is ((81/9)*5), which is (9*5), which is 45. So 45 picked up the garden tools.
Two airplanes leave an airport at the same time and travel in opposite directions. One plane travels 66 kmh slower than the other. If the two planes are 9804 kilometers apart after 6 hours, what is the rate of each plane
Please help!!!!!!!!!!! Picture below
1. 761/24
2. I don’t understand either u change it to an mix number or it’s already simplified.
Evaluate 20 x (32 – 4) : 50.
20 x (32 - 4) = 50 =
Answer:
[tex]20 \times ( {3}^{2} - 4) \div 50 \\ = 20 \times (9 - 4) \div 50 \\ = 20 \times 5 \div 50 \\ = 100 \div 50 \\ = 2[/tex]
correct answer will be 2What is the value of b in the equation 2x-y=6
Answer:
are you sure its b? b doesnt seem to be present in 2x-y=6
How do you find x????????!
===========================================================
Work Shown:
Let's make each of those unlabeled angles be angle y.
We have two copies of y, since the arcs are the same (meaning they are congruent angles) and 44 as well.
The three interior angles of any triangle add to 180
44+y+y = 180
2y+44 = 180
2y = 180-44 ... subtracting 44 from both sides
2y = 136
y = 136/2 ... divide both sides by 2
y = 68
Once we know y, we can find x
x+y = 180 ... since the adjacent angles form a straight line
x+68 = 180
x = 180-68 ... subtract 68 from both sides
x = 112
Suppose a certain cell reproduces itself in four hours. If a lab researcher begins with 50 cells, how many cells will there be after one day, two days, and three days? (Hint: Use the exponential function y = 50(2x). )
By working with the exponential function, we will see that:
After 1 day there are 3,200 cells.After 2 days there are 204,800 cells.After 3 days there are 13,107,200 cells.How to find the population of the cell?We know that the population of the cell doubles every four hours, then we can write:
y = 50*(2)^x
Where x is time in lapses of 4 hours, and 50 is the initial population of the cell.
In one day, there are 6 groups of 4 hours, then after one day we have:
y = 50*(2)^6 = 3,200 cells.In two days, there are 12 groups of 4 hours, then after two days we have:
y = 50*(2)^12 = 204,800 cells.In 3 days, there are 18 groups of 4 hours, then after 3 days there are:
y = 50*(2)^18 = 13,107,200 cells.If you want to learn more about exponential functions, you can read:
https://brainly.com/question/11464095
Which sum or difference is modeled by the algebra tiles?
A.(x^2 - 2x + 3) - (-x^2 - 4x - 2) = 2x-1
B.(x^2 - 2x - 3) + (x^2 - 4x + 2) = 2x - 1
C. (x^2 - 2x - 3) - (x^2 + 4x + 2) = 2x-1
D. (x^2 - 2x-3) +(-x^2 + 4x + 2) = 2x - 1
I would really like help
Answer:
2[tex]\sqrt{3}[/tex] or ~3.464
Step-by-step explanation:
We see that the triangle ABC has an angle of 90° and 45°, so 90+45 is 135, and 180-135 is 45° which is a special triangle. The hypotenuse is k[tex]\sqrt{2}[/tex] and we know that k is 6 so the other side lengths are 6 since they are just k. Now the triangle CBD hares a side so it is 6 and the angles are 60° and 90° so the last angle is 30° which is another special triangle. Since the side length is 6 and it equals [tex]\frac{\sqrt{3} }{2}[/tex]k. We divide 6 by [tex]\frac{\sqrt{3} }{2}[/tex] and we get 4[tex]\sqrt{3}[/tex] which is the value of k or the hypotenuse. To find x, we multiply k by 1/2 or divide it by 2. Dividing 4[tex]\sqrt{3}[/tex] by 2 gives us 2[tex]\sqrt{3}[/tex] which is x. If the question wants the exact number, then it is 3.464, otherwise, just put 2[tex]\sqrt{3}[/tex]. Hope this helps! (I'm not a bot btw)
between which two integers does -√52 lie
A. -3 and -4
B. -5 and -6
C. -6 and -7
D. -7 and -8
Answer:
D. -7 and -8
Step-by-step explanation:
give it to me an example for Primary and secondary Data Collection
Answer:
Primary data when the researcher collect the information like census by government . And secondary data means when like an entrepreneur take the census data from the government and collect more information .
Mark used a graph to compare the wages from two restaurant jobs. A dishwasher earns 7.25$ per hour, while a waiter earns 3.75$ per hour in addition to 25$ per day.
To the nearest hour, when will the two jobs earn the same amount?
Explain why your estimate is reasonable.
Your missing the graph
Answer/Step-by-step explanation:
To the nearest hour, when will the two jobs earn the same amount?
Answer = 7
Explain why your estimate is reasonable.
Explanation:
Waiter: y = 25 + 3.75x { x which is the time mark work}
Dishwasher: y = 7.25x
⇒ 25 + 3.75x = 7.25x [Same amount]
25 = 3.5x
x = 7.14285714286
Round:
x = 7
~Lenvy~
#8: Which of the following is a whole
number, but not a natural number?
A) -10
B) 0
C) 3/4
D) 2.5
Answer:
-10
Step-by-step explanation:
Hope that helps!!
a sports tournament has 8 teams. each team has n players. using n, write an expression for the total numbers of players in the tournament
Answer:
8n.
Step-by-step explanation:
You would be multiplying the amount of teams by the number of members to find the total members, hence 8 times n.
Can someone give me the answer the answer to this question?
Answer:
-2 is your awnser
Step-by-step explanation:
I hope this helps out.
I NEED HELP PLEASEEE
Answer:
the picture won't show up
Step-by-step explanation:
Raj correctly determined that ray LH is the bisector of AngleGLI. A line contains points K, L, M. 4 lines extend from point L. One line extends to point F, another to G, another to H, and another to I. Which information could he have used to determine this?
Answer:
Hello your question is incomplete below is the complete question
Raj correctly determined that ray LH is the bisector of AngleGLI. A line contains points K, L, M. 4 lines extend from point L. One line extends to point F, another to G, another to H, and another to I. Which information could he have used to determine this? AngleGLH Is-congruent-to AngleILM mAngleKLM = 5mAngleILM , mAngleGLI = 2mAngleGLH, mAngleGLI = mAngleGLH + mAngleHLI
answer : mAngleGLI = 2mAngleGLH
Step-by-step explanation:
The information that could have used to determine this information is
mAngleGLI = 2mAngleGLH
from the figure, we can see that
mAngleGLI = mangleGLH + mangleHLI
Hence we can conclude mangleGLH = mangleHLI
therefore the ray LH bisects angleGLI into two equal angles GLH & HLI.
Answer: mGLI = 2mGLH
Step-by-step explanation: took the test on edge
How many times greater is 5.6 x 10 than 1.4 x 10??
Answer:
4 times greater
Step-by-step explanation:
Complete the slope-intercept form of this line.
y = –4x +
Answer:
the slope intercept form of this line is y = -4x + 9.
Step-by-step explanation:
The equation of line is given by:
y = mx + b .....[1]
where,
m is the slope of line
b is the y-intercept.
As per the statement:
Given: The rate of change = -4
Substitute in [1] we have;
y = -4x + b
Substitute the values of any (x, y) from the given table.
Let x = -1 and y = 13
then;
13 = -4(1-)+b
⇒13 = 4+b
Subtract 4 from both sides we have;
9 = b
or
b = 9
⇒the equation become, y = -4x+9
Therefore, the slope-intercept form of this line is, y = -4x+9