Answers
Answer: i think you should label it with numbers first
maybe??
Step-by-step explanation:
Related Questions
Zoe charges £9 per student to attend a dance class. There are y students in the class.
a . Write an expression for the total amount she charges for a class.
b. How much does she charge for 5 students?
c. How many students must she have in the class to make £72?
Answers
b. 9(5) - She charges 45$ for 5 students
c. 9y= 72
y = 72/9
y = 8
She must have 8 students in her class.
Given −7 is one of the roots of the quadratic equation
(x + k)2 = 16, where k is a constant, find the values of k.
Answers
Answer:
k = {3, 11}
Step-by-step explanation:
Taking the square root of the given equation, we find ...
x +k = ±4
For x = -7, this is ...
-7 +k = ±4
k = 7 ±4 = {3, 11}
Possible values of k are 3 and 11.
[tex]\huge\bf\underline{\underline{\pink{A}\orange{N}\blue{S}\green{W}\red{E}\purple{R:-}}}[/tex]
Taking square root on the both sides of equation (x + k)² = 16 we get,
[tex]\implies\rm{( {x + k)}^{2} } = 16[/tex]
[tex]\implies\rm{x + k = ± 4}[/tex]
Making two conditions for ± 4 i.e
1) x + k = 4
[tex]\implies\rm{ - 7 + k = 4}[/tex]
[tex]\implies\rm{k = 4 + 7}[/tex]
[tex]\implies\rm{k = 11}[/tex]
2) x + k = -4
[tex]\implies\rm{ - 7 + k = - 4}[/tex]
[tex]\implies\rm{k = - 4 + 7}[/tex]
[tex]\implies\rm{k = 3}[/tex]
Thus the values of k can be either 11 or 3.Johnathan is driving from Houston to Seattle. After 3 hours, he has traveled 150 miles. After 7 hours, he has traveled 350 miles. This information is also represented in the table below.
Driving Time
Time (hr) Distance (miles)
3 150
7 350
10 500
What is Johnathan’s average rate of speed?
Answers
Answer:
50mph
Step-by-step explanation:
first divide 150 by 3 and you get 50
then divide 350 by 7 you get 50
and finally divide 500 by 10 and you get 50
help please?????????
Answers
Answer:
A, to B, to D,
or A, to E, to C, to D
Step-by-step explanation:
Which postulate or theorem can be used to prove the triangles congruent?
a) ASA
b) SAS
c) AAS
d) SSS
e) cannot be proved congruent
Answers
Answer:
D) SSS
Step-by-step explanation:
They have 3 sides that are congruent to each other. We don't know anything about the angles.
2) (x8y2)(x3y11)
a) xlly13
b) x24y22
c) xSy
d) 1
Answers
Answer:
the answer would be A.)
Step-by-step explanation:
“write each number as a percent”
6 and 1/2 ( mix number)
Help please
Answers
Answer:
650%
Step-by-step explanation:
Since percent means "out of one hundred", we can use that to find out the answer6 would be 600 percent, and 0.5 would be 50 percentTherefore, the answer would be 650%A line has a slope of 0 and passes through the point (10, 2). What is its equation in slope intercept form?
Answers
Answer:
y = 10
Step-by-step explanation:
y = m x + C, where m is the slope and c is the intercept on the y axis. Plugging in the values of m and C, we get: y = 0 x + 10 = 0 + 10 = 10. Therefore, y = 10.
The equation of line that passes through the point P ( 10 , 2 ) and has a slope of 0 is y = 2
What is an Equation of a line?
The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept
And y - y₁ = m ( x - x₁ )
y = y-coordinate of second point
y₁ = y-coordinate of point one
m = slope
x = x-coordinate of second point
x₁ = x-coordinate of point one
The slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )
Given data ,
Let the equation be represented as A
Now , the value of A is
Let the point be represented as P ( 10 , 2 )
And ,let the slope of the line be m = 0
Slope m = 0
Now , the equation of line is given by the formula y - y₁ = m ( x - x₁ )
Substituting the values in the equation , we get
y - 2 = 0 ( x - 10 )
On simplifying the equation , we get
y - 2 = 0
Adding 2 on both sides of the equation , we get
y = 2
Therefore , the value of A is y = 2
Hence , the equation of line is y = 2
To learn more about equation of line click :
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Sarah is buying gifts for her friends. She is purchasing phone cases and chargers. The phone cases cost $25 and the charges cost $30. She
plans on spending no more than $100 and wants to buy at least 4 gifts. Which inequalities would be used to model this situation?
Answers
Answer:
Step-by-step explanation:
Let P be the number of phone cases and C the number of chargers.
p($25) + C($30) ≤ $100
and
P + C ≥ 4
Frank and Chris both took the ABC achievement test, which is N(950,50). If frank had a z-score of 2.5 and Chris had a
score of 675, how much higher was Frank's score?
1075
1700
400
525
none of the above
Answers
======================================================
Explanation:
The notation N(950,50) tells us that we have a normal distribution with the following parameters:
mu = 950 = meansigma = 50 = standard deviationUse the z score z = 2.5 to convert to its raw score x
z = (x-mu)/sigma
2.5 = (x-950)/50
2.5*50 = x-950
125 = x-950
x-950 = 125
x = 125+950
x = 1075
Frank's z score of z = 2.5 corresponds to the actual score of x = 1075. This is 1075-675 = 400 points higher than the score Chris got.
1. Rosie orders dessert at the cafe. The total bill is $50. She tips the waiter 10%.
How much money does the waiter get?
Answers
Answer:
5
Step-by-step explanation:
this means it'll be $55
A line passes through the points (8, -1) and (-4, 2).
10
8
6
4
-10 -3 -6 6 -2
2
4
6
8
10
X
4
-6
do
8
-10
What is the y-intercept of this line?
Answers
Answer:
The y-intercept of this line is 1 (or (0, 1) )
Step-by-step explanation:
Going from (8, -1) to (-4, 2), the x-coordinate decreases by 12 and the y-coordinate increases by 3. Thus, the slope of this line is m = rise/run = 3/(-12), or m = -1/4.
Let's use this information (x = 8, y = -1, m = -1/4) and the slope-intercept formula y = mx + b to find the y-intercept (b):
-1 = (-1/4)(8) + b, which simplifies to -4 = -8 + 4b. Solving for b, we get
4 = 4b, so that b must be 1.
The y-intercept of this line is 1 (or (0, 1) )
Write as an equation and solve: Eight less than the number is 31.
Answers
Step-by-step explanation:
x is the number
so, the equation is
x - 8 = 31
x = 39
Answer:
n is the number
Step-by-step explanation:
n-8=31
n = 39
hoped that helped:P
Find the slope of each line.
1)
Answers
Answer:
7/1 or 7
Step-by-step explanation:
because you rise (vertically) seven and run (horizontally) 1, so 7/1 but simplified it's just 7 so either is valid.
y=-1/2x+5/2 Find the slope
Answers
Answer:
Here is a pic hope this helps! <3
Step-by-step explanation:
Answer:
-1/2
Step-by-step explanation:
y=-1/2x+5/2
y=mx+b
m=slope
m=-1/2
HELP HURRY PLS
What is the equation of this line?
y =2/3x
y=3/2x
y= -2/3x
y= -3/2x
Answers
Answer:
y = 2/3x
Step-by-step explanation:
If 12g of a radioactive substance are present initially and 8yr later only 6g remain, how much if the substance will be present after 13 years?
Answers
The weight of substance remaining after 13 years is 2.25 g.
Given:
Present weight of substance = 12 g
After 8 years weight remains = 6 gm
Now, weight loss in 8 year will be,
12-6=6 gm
So, weight loss in 1 year will be,
[tex]\dfrac{6}{8} =\dfrac{3}{4}[/tex]
Total weight loss in 13 year will be,
[tex]\dfrac{3}{4}\times13=9.75[/tex]
The weight of substance remaining after 13 years will be,
[tex]12- 9.75 = 2.25 \;\rm g[/tex]
Therefore, the weight of substance remaining after 13 years is 2.25 g.
To know more about radioactive decay, refer to the link:
https://brainly.com/question/12116123
The scale for an
airplane is 1 cm
for 15 feet. If the
plan is 9 cm
long, how long is
the actual plane?
Answers
Answer:
135 ft
Step-by-step explanation:
Each centimeter represents 15 feet, so 9 centimeters will represent ...
9 × 15 ft = 135 ft
The plane is 135 feet long.
Can someone please help me with this? Tysm!! ^^
Answers
Answer:
90 feet
1080 inches
Step-by-step explanation:
I hope it helps you!
90 feet
How many inches is this?
1080 inches
it takes 5 days to repair 1250 meters of road.
At this rate, how many days will it take to repair 8 kilometers of road?
Answers
Answer:
2000 Meters
Step-by-step explanation:
First, DIvide 1250 by 5 and you get 250. Multiply by 8 and you get 2000.
8 kilometres is 8000 meters
We know that 1250 meters takes 5 days, so we can work out how many times 1250 goes into 8000 to find out how many times longer it will take
8000 / 1250 is 6.4
It will take 6.4 times longer to produce 8km
6.4 x 5 is 32
32 days
Factorize (x-y)^2+(x-y)
Answers
..............answer..
check whether the given fraction are equivalent
a) 7 /13 ,5/11
Answers
Answer:
No
Step-by-step explanation:
Not equivalent
7/13 ≠ 5/11
factor the expression 14x - 21 using the GCF
Answers
Please not answer just for points! I really need help~
Answers
Answer:
All I know is that it is the Last Option
Step-by-step explanation:
I did most of this mentally but I can kinda help you out :D
original R: (-5,-5) New R: (-11,-11)
To go back to original R: (-11+6, -11+6)
original U: (-5, 1) new U: (1,7)
HOPE THIS HELPEDDDD :333
Translate. Eight less than the difference of a number and five is twelve.
Answers
Answer:
(x - 5) - 8 = 12
Step-by-step explanation:
Lets portion each part out:
Eight less than
The difference of a number and five
Is twelve.
First, we must write down the portion with "a number" in it: x - 5. We use subtraction because the sentence states "the difference".
Next, we will write down "eight less than". The problem states that twelve is "eight less than" the difference. This means that we must subtract 8 from out first part: (x - 5) - 8
Finally, the sentence tells us that this equals twelve: (x - 5) - 8 = 12
Which is the graph of 2x + 3y > -3
Graph: C
Answers
A) by AA similarity
B) by sas similarity
C)Not enough information
D) by sss similarity
Please see the photo
Please don't answer randomly because if you answer randomly you are gonna lose points
Answers
Answer: b
Step-by-step explanation:
Answer: It's yes and (D) SSS because all the angles are side side side and all have the same angles but one's smaller while the other is bigger but that doesn't change anything. :)
Step-by-step explanation:
HELP FAST (x+y+2)(y+1) REWRITE IN AN EQUATION
Answers
Answer:
xy+x+y^2+3y+2
Step-by-step explanation:
Simplify. Pls help really need help
Answers
Answer:
the answer is 5a
Step-by-step explanation:
What is meant by a stratified sample?
Answers
Answer:
A stratified random sampling involves dividing the entire population into homogeneous groups called strata (plural for stratum). Random samples are then selected from each stratum. ... A random sample from each stratum is taken in a number proportional to the stratum's size when compared to the population.
Answer:
Sampling that is used to represent different groups depending on their different qualities.
Hope that helps. x