Answer:
5/4 since 125/100 = 5/4
Step-by-step explanation:
Solve the system by substitution
Answer:
(x,y) = (-36,6)
Step-by-step explanation:
-6y=x
x+y=-30
x=-6y,
so -6y+y=-30
-5y=-30
y=6
x=-36
Hope this helps pls hit the crown :D
Select all of the points that are in the solution set graphed below.
please help this is due in 10 mins. 1
sin^2a-sin^2b=cos^2b-cos^2a
Answer:
see explanation
Step-by-step explanation:
Using the trigonometric identity
sin²x + cos²x = 1 , then sin²x = 1 - cos²x
Consider the left side
sin²a - sin²b
= (1 - cos²a) - (1 - cos²b)
= 1 - cos²a - 1 + cos²b
= cos²b - cos²a
= right side , thus verified
SOMEONE HELP ItS URGENT ILL GIVE BRAINLEST!
Answer:
Step-by-step explanation:
y = [tex]\frac{1}{35} x[/tex]
for y = 1
x = 35
for y = 2
x = 70
and so on
substituting the values in y = [tex]\frac{1}{35} x[/tex] will also give same result!
Answer:
B. y = 35x
Step-by-step explanation:
If you multiply 35(x), by the number of gallons used, you will get the values of x as your result.
35 × 1 = 35
35 × 2 = 70
35 × 3 = 105
35 × 4 = 140
35 × 5 = 175
Help me. I need help
Answer:
i cant read that
Step-by-step explanation:
Which table represents a linear function?
Answer:
A.
(1,3)
(2,7)
(3,11)
(4,15)
Step-by-step explanation:
I plotted the points into a graphing calculator
!PLEASE HELP ME!
Tim thinks that the following expression will only yield values that are positive. x^2
Is Tim correct? Explain why or why not and provide three examples that prove whether Tim’s statement is correct.
Answer:
We conclude that Tim is correct when he says that the expression x² only yields values that are positive.
Step-by-step explanation:
Given the expression
x²
Plug in and checking x = 1 and x = -1 in the expressionPutting x = 1 in the expression
x²= (1)² = 1
Putting x = -1 in the expression
x²= (-1)² = 1
Thus, the expression yields the same output '1' when we enter x = 1, and x=-1.
Plug in and checking x = 2 and x = -2 in the expression
Putting x = 2 in the expression
x²= (2)² = 4
Putting x = -1 in the expression
x²= (-2)² = 4
Thus, the expression yields the same output '4' when we enter x = 2, and x=-2.
Plug in and checking x = 3 and x = -3 in the expressionPutting x = 3 in the expression
x²= (3)² = 9
Putting x = -1 in the expression
x²= (-3)² = 9
Thus, the expression yields the same output '9' when we enter x = 3, and x=-3.
The reason why the expression x² only yields positive values because the expression is in the square form, and the square of any number will always yield a positive value, no matter whether the input number is negative or positive.
Therefore, we conclude that Tim is correct when he says that the expression x² only yields values that are positive.
Which value is equivalent to 7 multiplied by 3 multiplied by 2 whole over 7 multiplied by 5, the whole raised to the power of 2 multiplied by 7 to the power of 0 over 5 to the power of negative 3, whole to the power of 3 multiplied by 5 to the power of negative 9? (1 point)
Answer:
36/25
Step-by-step explanation:
7 multiplied by 3 multiplied by 2 whole over 7 multiplied by 5, the whole raised to the power of 2 multiplied by 7 to the power of 0 over 5 to the power of negative 3, whole to the power of 3 multiplied by 5 to the power of negative 9
((7 * 3 * 2)/(7 * 5))^2 * (7^0/5^-3)^3 * 5^-9 =
= (42/35)^2 * (1 * 5^3)^3 * 5^-9
= (6/5)^2 * 5^9* 5^-9
= 36/25 * 5^0
= 36/25
A total of 54 adults and students show up for the play. Adult tickets cost $8 and kid tickets cost $5 and the total money collected
was $360. How many of each type of ticket were sold?
It’s using substitution or elimination to find the number of kids and adults. Really need help!!
9514 1404 393
Answer:
24 kids30 adultsStep-by-step explanation:
If find that "substitution" works well for "mixture" problems like this. Usually, you will want to substitute for the lower-priced item, so that you're solving for the number of higher-priced items.
Let "a" and "k" stand for the number of adult and kid tickets, respectively.
a + k = 54 . . . . . . total number of tickets sold
8a +5k = 360 . . . total revenue
__
To substitute for k, we solve the first equation for k:
k = 54 -a
Now, we substitute that into the second equation:
8a +5(54 -a) = 360
3a = 90 . . . . . . . . . . . subtract 270 from both sides; collect terms
a = 30 . . . . . . . . . . . . divide by 3
k = 54 -30 = 24 . . . . . use the above formula for k
The number of kids was 24; the number of adults was 30.
A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by the given equation. Using this equation, find out the time at which the rocket will reach its max, to the nearest 100th of a second. y=-16x^2+218x+75
Answer:
6.81s
Step-by-step explanation:
First you must know that the velocity of the body is zero at the maximum height.
v =dy/dx
v= -32x+218
Since v = 0
-32x+218 =0
32x =218
x= 218/32
x = 6.81s
Hence the rocket reaches its maximum height after 6.81s
Answer i got it wrong it was 5.94
Step-by-step explanation:
Can someone tell me if these equations are parallel, perpendicular, intersect but not perpendicular, or coincide??
3x = 4y - 6
-4x = 3y - 6
PLS HELP FIRST ONE RIGHT GETS BRAINLEST |||| A produce stand is packing blueberries into 2/5 pound containers. How many containers can be filled with 60 pounds of blueberries? 1/150 1/24 24 150
Answer:
The answer is 24
Step-by-step explanation:
24
Answer:
24
Step-by-step explanation:
24
What is the total area, in square units, of the four triangular faces of a right, square-based pyramid that has base edges measuring 6 units and lateral edges measuring 5 units
Given :
Square-based pyramid that has base edges measuring 6 units and lateral edges measuring 5 units.
To Find :
The total area, in square units, of the four triangular faces of a right.
Solution :
We know, area of square based prism is given by :
[tex]A = a^2 + \dfrac{ah}{2}[/tex]
Here, a is the length of square base and h is the height .
[tex]A = 6^2 + \dfrac{6\times 5}{2}\\\\A = 51 \ units^2[/tex]
Therefore, total area in square units is 51.
A varsity boy's basketball team has ratio of seniors to juniors that is 7:4. If the team is made up of only juniors and seniors, what is the ratio of seniors to the total team members?
Answer:
The ratio of seniors to the total team members is 7: 11
Step-by-step explanation:
Let us solve the question
∵ A varsity boy's basketball team has a ratio of seniors to juniors that is 7: 4
∴ seniors: juniors = 7: 4
→ That means seniors have 7 parts and juniors has 4 parts
∴ The seniors' members = 7 parts
∴ The juniors' members = 4 parts
→ Add them to find the total parts of the team
∴ The team's members = 7 + 4 = 11 parts
→ To find the ratio of the seniors' members to the total team's member
divide their parts
∵ The seniors ÷ The total = [tex]\frac{7}{11}[/tex]
∵ The seniors' member : The team's members = 7: 11
∴ The ratio of seniors to the total team members is 7: 11
(6.7x10 with an exponent of 8)(1.2x10 with an exponent of 2) please help!
operations with scientific notation
Answer:
Step-by-step explanation:
Since the bases are different, each expression must be done independently.
6.7*10^8
6.7*6.7*6.7*6.7*6.7*6.7*6.7*6.7= 4,060,676.78
1.2*10^2
1.2*1.2= 1.44
multiply the two= 5847374.56
Will be mark brainless
The number of hours that 20 people spent watching television per day, in relation to age, is graphed. This quadratic equation represents the
model for the set of data.
y = 0.00412 - 0.3141 +7.5
Based on the model, approximately how much time does an 18-year-old spend watching television each day?
A. 2 hours
B. 0.5 hour
C. 7.5 hours
D. 3 hours
Answer:
D. 3 hours
Step-by-step explanation:
As part of summer camp, Henry goes on a treasure hunt. He starts at the base of a tree and walks 180 feet due north. He then turns and walks 80 feet due east. (Hint: Draw a picture.)
How far is Henry from the tree? Round your answer to the nearest foot.
Answer:
hmmmmmmmmmmmmmmm
62
Step-by-step explanation:
Sandra rollerbladed ALL DAY. When she got home, she realized that she had
traveled 93.5 miles in 8 hours. What is her unit rate?
her unit rate was about 11.7 miles per hour.
divide 93.5 by 8 to get answer.
hope this helps.
i could also be wrong.
if x and y vary directly, and x=1/2 when y=36, what is the value of x when y=144
Answer:
23223232322323
Step-by-step explanation:
nothing sorry.......
Answer:
ok
Step-by-step explanation:
well thats good
On a two-week job, a repairman works a total of 70 hours,He charges 75$ plus 40$ per hour. An equation shows this relationship, where x is the number of hours and y is the total fee. 3.Which number is the slope of the line shown by the equation? A .14 C .70 B. 40 D.75 4.Which number is the y-intercept A. 14 C. 70 B.40 D.75
Answer:
Which number is the slope of the line shown by the equation?
B. 40
Which number is the y-intercept
D.75
Step-by-step explanation:
The formula for the Equation of a line =
y = mx+b
where:
m is the slope and b is the y-intercept.
Hence, interpreting the above question:
On a two-week job, a repairman works a total of 70 hours,He charges 75$ plus 40$ per hour.
x is the number of hours and y is the total fee.
Hence, the Equation we have is:
y = $40 × x + 75
y = 40x + 75
Comparing with the Equation of a line formula
= y = mx+b
Therefore:
The slope of the line = 40
The y intercept = 75
A bowl contains blueberries and strawberries. There are a total of 16 berries in the bowl. The ratio of blueberries to strawberries is 3 : 1. How many of each berry are in the bowl?
Answer:
12 blueberries and 4 strawberries
Step-by-step explanation:
We can try the guess method.
3:1 3 + 1 = 4 4 is too low. We need a sum of 16.
Multiply both numbers in the ratio by 2.
6:2 6 + 2 = 8 8 is still too low
Multiply both numbers in the ratio by 4.
12:4 12 + 4 = 16 16 is correct.
Answer: 12 blueberries and 4 strawberries
josh sketched on a paper tree one-fifth of a foot tall. Then he drew the same tree on the wall two-thirds of a foot tall to decorate his room. how much larger than the sketch is the drawing.
Answer:
Step-by-step explanation:
Subtraction
Equation
2/3 - 1/5
Solution
20/30 - 6/30
14/30
7/15
The tree on the wall is 7/15 of a foot larger than the tree on paper.
Division
2/3 // 1/5 = 2/3 * 5/1 = 10/3 = 3 1/3
The tree on the wall is 3 1/3 times the tree in the drawing.
Classify the triangle. Check all that apply
Acute
Obtuse
Right
Scalene
Isoceles
Equilateral
Equiangular
None of the above
Answer:
The answer is Right because of the tiny square in the right corner and scalene because none of the three sides are equal in length.
Step-by-step explanation:
I hope this helps!
State if the following graph is discrete or continuous.
Please help me
Answer:
the graph is continuous
An electrician charges $50 to come to your house. He also charges $25 for each hour he spends at your house. The electrician charges you a total of $125. How many hours did he spend at your house? Please also write the equation
Answer:
He was there for three hours
Step-by-step explanation:
$25 times 3=$75
$50+$75=$125
A baseball team won 20 games and lost 10 games. What percent of the games did the team win?
o 3359%
50%
6659%6
200%
Answer:
the first one
Step-by-step explanation:
Please Help Me with this one too
Answer:
The second one
Step-by-step explanation:
0.5 times 5 is 2.5
2.5 plus 14 is 16.5
0.5 times 10 is 5
5 plus 14 is 19
And so on
Q8
The table below shows the masses of 6 stick insects.
Name of Insect
Mass (m)
Arthur
7.825 9
Bethan
7.265 9
Clarry
8.15 9
Deena
7.455 9
Ethan
8.945 9
Freya
7.0159
(a) Write the name of the stick insect with m > 8.85 g
Answer:
(b) Write the name of the stick insect with m s 7.155 g
Answer:
(1
Score:
out of 16
Answer:
Ethan
Question b is incomplete
Step-by-step explanation:
Given the masses of the 6 insects below :
Name of Insect ______ Mass (m)
Arthur _____________ 7.8259
Bethan ____________ 7.2659
Clarry ______________8.159
Deena _____________ 7.4559
Ethan ______________ 8.9459
Freya ______________ 7.0159
Write the name of the stick insect with m > 8.85g
Mass (m) greater than 8.55 g
From the table :
8.945 > 8.55 ;
Hence, Ethan
(b) Write the name of the stick insect with m s 7.155 g
Question b isn't complete