Answer:
=0.423 yards (3 sig figs.)
Step-by-step explanation:
38.7÷91.44
=0.4232283
=0.423 yards (3 sig figs.)
Complete the following problems.
Amy has $50 in her lunch account. Amy spends $3 a day for lunch. Amy's mother receives a notification when Amy's
account balance reaches $5 or lower. How many lunches can Amy purchase until her mother receives a notification? And what is the equation in slope intercept form
Answer:
Amy can purchase up to 14 lunches until her mother receives the notification. When she has the 15th lunch, the notification will be sent.
Step-by-step explanation:
The balance Amy has in her lunch account is a function of the number of lunches she has consumed.
The initial balance is $50 and it decreases by $3 for every lunch Amy has. Thus, the function that models the balance in her lunch account is:
[tex]B(x)=50-3x[/tex]
Where x is the number of lunches.
Her mother receives a notification when the balance goes at $5 or lower, thus the condition that triggers the notification is:
[tex]B(x) \le 5[/tex]
Or, equivalently:
[tex]50-3x\le 5[/tex]
Subtracting 50:
[tex]-3x\le 5-50[/tex]
[tex]-3x\le -45[/tex]
Multiplying by -1 (and flipping the sign):
[tex]3x\ge 45[/tex]
Solving:
[tex]x\ge45/3[/tex]
[tex]x\ge 15[/tex]
Amy can purchase up to 14 lunches until her mother receives the notification. When she has the 15th lunch, the notification will be sent.
x+2y=8
standard to slope intercept form
Answer:
2x + 8 = y
or
2y = x + 8
Step-by-step explanation:
Which expression is equivalent
to cos(4x)?
Answer: A 2(2cos^2(x) - 1)^2 - 1
Step-by-step explanation: E 2020
The expression equivalent to cos(4x) is 2cos²(2x) - 1.
Out of the options provided, the correct choice is 2cos²(2x) - 1.
The expression equivalent to cos(4x) can be found using trigonometric identities and formulas. One such identity is the double angle identity for cosine:
cos(2θ) = 2cos²(θ) - 1.
We can apply this identity to the expression cos(4x) by considering it as cos(2(2x)).
Using the double angle identity, we have:
cos(4x) = cos(2(2x)) = 2cos²(2x) - 1.
Therefore, the expression equivalent to cos(4x) is 2cos²(2x) - 1.
Out of the options provided, the correct choice is:
O 2cos²(2x) - 1.
By substituting 2x for θ in the double angle identity, we obtain the equivalent expression for cos(4x).
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BRAINILEST IF ANSWEED QUICKLY AND CORRECT
(05.01)Which statement best describes the area of the triangle shown below?
A coordinate grid is shown with a triangle. The base is 4 units, and the height is 4 units.
It is one-half the area of a rectangle of length 4 units and width 2 units.
It is twice the area of a rectangle of length 4 units and width 2 units.
It is one-half the area of a square of side length 4 units.
It is twice the area of a square of side length 4 units.
The answer is B. It is one-half the area of a square of side length 4 units.
Please help me! Is the ordered pair, in the form (x, y) x , y , a solution of the equation below?
Ordered Pair: (−1, −12)
Linear Equation: 4x − y = 8
options:
True
False
ethan planted a tree that was 1.85 meters tall. several year later the tree is 5.30 meters tall
Find 4.8 x 7.2 show your proof
Answer:
34.56
Step-by-step explanation:
it is what it is
A leak in a pool causes the height of the water to decrease by 0.25 foot over 2 hours. After the leak is fixed, the height of the water is 4.75 feet. The equation 4.75 = x + (negative 0.25) can be used to find x, the original height of the water in a pool.
What was the original height of the water in the pool in feet?
Answer:
Assuming the leak took 2 hours to fix, the original height of the pool is 5 feet.
Step-by-step explanation:
This is probably the most simple "high school" problem I've seen in a while. All you have to do is move the negative 0.25 to the other side to isolate x. That gives you 4.75 + 0.25, or 5 feet.
The original height of the water in the pool was 5 feet.
Given that there is leak in a pool causes the height of the water to decrease by 0.25 foot over 2 hours.
After the leak is fixed, the height of the water is 4.75 feet.
The equation 4.75 = x - 0.25 can be used to find x, the original height of the water in a pool.
we need to find the original height of water,
To find the original height of the water in the pool, we can use the given information and equation.
Let's break down the equation: 4.75 = x - 0.25
Here, x represents the original height of the water in the pool, and -0.25 represents the decrease caused by the leak.
The equation states that after the leak is fixed, the height of the water in the pool is 4.75 feet. This means that the final height (4.75 feet) is equal to the original height (x) minus the decrease caused by the leak (-0.25 feet).
To solve for x, we can isolate it on one side of the equation.
Adding 0.25 to both sides of the equation, we get:
4.75 + 0.25 = x - 0.25 + 0.25
Simplifying the equation, we have:
5 = x
Therefore, the original height of the water in the pool was 5 feet.
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The coldest temperature ever recorded on Earth is 135.8°F below 0, recorded
in Antarctica on July 21, 1983. The hottest temperature ever recorded
on Earth is 134°F, recorded in Death Valley, California, on July 10, 1913.
What is the difference between those two temperatures?
Answer:
-269.8
Step-by-step explanation:
Below 0 is negative.
Them do -135.8 - 134.
Which of these equations, when solved, gives a different value of x than the other three? 9.1 = -0.2x + 10 10 = 9.1 + 0.2x 10 – 0.2x = 9.1 9.1 – 10 = 0.2x To prepare for his mountain biking trip, Rhyan bought four tire patches. Rhyan paid using a gift card that had $22.20 on it. After the sale, Rhyan's gift card had $1.90 remaining. Which equations could you use to find the price of one tire patch? Select all that apply. 4x – 1.9 = 22.2 4x – 22.2 = 1.9 4x + 1.9 = 22.2 4x + 22.2 = –1.9 22.2 – 4x = 1.9
Given:
Different equations are given.
Rhyan paid using a gift card that had $22.20 on it. After the sale, Rhyan's gift card had $1.90 remaining.
To find:
The equation which gives a different value of x than the other three.
To find the equations that could you use to find the price of one tire patch.
Solution:
In option A,
[tex]9.1 = -0.2x + 10[/tex]
[tex]0.2x= 10-9.1[/tex]
[tex]0.2x= 0.9[/tex]
Divide both sides by 0.2.
[tex]x=\dfrac{0.9}{0.2}[/tex]
[tex]x=4.5[/tex]
Similarly,
In option B,
[tex]10 = 9.1 + 0.2x[/tex]
[tex]0.9= 0.2x[/tex]
[tex]4.5=x[/tex]
In option C,
[tex]10-0.2x = 9.1[/tex]
[tex]-0.2x = -0.9[/tex]
[tex]x = 4.5[/tex]
In option D,
[tex]9.1 – 10 = 0.2x[/tex]
[tex]-0.9 = 0.2x[/tex]
[tex]-4.5 = x[/tex]
Since option D has difference solution, therefore the correct option is D.
Let price of one tire patch be x.
So, price of 4 tire patches = 4x
Remaining amount in Rhyan's gift card = $1.90
Total amount = $22.20
Price of 4 tire patches + Remaining amount in gift card = Total amount
[tex]4x+1.9=22.2[/tex]
It can be written as
[tex]4x-22.2=-1.9,1.9=22.2-4x,22.2-4x=1.9[/tex]
Therefore, the correct options are C and E.
Answer:
c and e the last and second to last one
Step-by-step explanation:
What is the maximum number of turns in the graph of this function? f(x) = x5 – x2 – x+1
Answer:
4
Step-by-step explanation:
A number plus one is greater than negative five and less than three.
Answer:
Step-by-step explanation:
1. It is less than three and more than negative five. 1 + 1 is 2 and 2 is less than 3.
220 miles on 8 gallons. How many miles in one gallon?
Answer:
Tune answer is 27. 5
Step-by-step explanation:
220/8=27. 5
Given the relation y = 7x^2 + 3, if the input is 4, what is the output? (4 points) 115 116 118 120
Answer:
115
Step-by-step explanation:
PLug in 4 as the value of x.
7 (4)^2 + 3
7 (16) + 3
112 + 3
115.
The output is 115.
Thank you if you could help!
Answer: 12/8
Step-by-step explanation:
Answer:
[tex]\frac{3}{2}[/tex]
Step-by-step explanation:
Simplify: [tex]\frac{5}{8} - (-\frac{7}{8}) = \frac{5}{8} + \frac{7}{8}[/tex] [tex]\frac{5}{8} + \frac{7}{8} = \frac{12}{8}[/tex] [tex]\frac{12}{8} = \frac{3}{2}[/tex]I hope this helps!
Triangle ABC is isosceles. What are the steps you would take to construct the perpendicular bisector for segment AB.
Answer:
look at my Step-by-step explanation
Step-by-step explanation:
The perpendicular bisector of a line segment
open the compass more than half of the distance between A and B, and scribe arcs of the same radius centered at A and B.
Call the two points where these two arcs meet C and D. Draw the line between C and D.
CD is the perpendicular bisector of the line segment AB. Call the point where CD intersects AB E.
Proof. top.
Simplify 6(3a - 8b + 2)
3(x-5) = 5x - (3 - x)
Answer:
X=-4
Step-by-step explanation:
Answer: Isolate the variable by dividing each side by factors that don't contain the variable.
X= -4
Step-by-step explanation:
Explain and correct the error made by a student who simplified this expression
–2x + 7x + 8 (–2 + 7 + 8)x 13x
Answer:
−11(−3−3x) ( i think)
Step-by-step explanation:
Derek has a bird that weighs 4 pounds. Use the double line diagram below to help you determine approximately how many kilograms this bird weighs. (2 points)
2 lines. The first line is labeled Pounds and has 6 marks, equally spaced apart, and every other mark labeled 3, 5, 7, respectively. The second line is labeled Kilograms and has 6 marks, equally spaced apart, and every other mark labeled, 1, 2, 3, respectively.
Group of answer choices
1.5 kilograms
2 kilograms
5 kilograms
7 kilograms
Answer:
2 killograms
Step-by-step explanation:
hope this helps :)
Answer:
2 2 2 it is 2
Step-by-step explanation:
John hosts an art workshop on the weekends. He has an average of 14 students in each session and charges a fee of $12 per session. He estimates that for every $2 increase in the fee, the average number of students reduces by 1.
Complete the equation that models this scenario, where c(x) is the revenue generated and x is the number of $2 fee increases.
Answer: c(x)=-2 x2 + 16x + 168
Step-by-step explanation: I hope this helps if im wrong im srry!
Answer:
[tex]c(x) = - 1(x - 7.5)^{2} + 222.25[/tex]
I apologize if this is the wrong format. It's also extremely complicated to explain.
What’s the answer hurry
Answer:
y=12x
Step-by-step explanation:
According to the table
48=12(4) which is true
60=12(5) which is true
96=12(8) which is true
Answer:
12, 60/5 is 12, 48/4 is 12, 96/8 is 12
solve for x
3(x-2)-2x+3=-12
help plz
Answer:
x = -9
Step-by-step explanation:
First, subtract 3 from both sides of the equation and distribute the 3 to the x and -2.
3x - 6 - 2x = -15
Now, add the 6 to both sides of the equation and combine 3x and -2x.
x = -9
The value of x is -9.
42dx - 7dx = 70f solve for x
what ordered pair is the solution
which posture or theorem proves that these two triangles are congruent
ASA Congruence
AAS Congruence Theorem
HL Congruence Theorem
SAS Congruence postulate
Answer:
AAS Congruence Theorem
Help me please, this is due in like 20 mins
Answer:
[tex]-\frac{8}{27}[/tex]
Step-by-step explanation:
Use 9 for the denominators since 3 goes into 9
[tex]-\frac{3}{9} *\frac{8}{9}[/tex]
You can simplify 3 and 9 across
[tex]-\frac{1}{9} *\frac{8}{3}=-\frac{8}{27}[/tex]
“without using technology describe the end behavior of f(x) equals negative 3X to the 4th+ 7X squared -12 X +13” PLEASE HELP!!!!
Pls help i don't want to fail
Answer:
27/50
Step-by-step explanation:
Just do 9/10/3/5
Answer:If the question is asking for 9/10/3/5 the answer is 3/50; however, if the question is asking for (9/10) / (3/5), the answer should be 3/2.
Step-by-step explanation: The 3/50 answer comes from 9/10 which equals .9, dividing that by 3. That equates to .3, and then dividing by 5 which measures up to .06. From there you can turn .06 into a fraction being 3/50.
You get the 3/2 by dividing (9/10) by (3/5). .9/.6 is 1.5. When converted to a fraction 1.5=3/2. Hope this could help.
samantha makes her own soap and sells it at a craft markets. she makes 15 bars of soap in 3 hours. If she works for 6 hours every Saturday for 4 Saturdays, how many bars of soap will she have?
Answer:
120
Step-by-step explanation:
She makes 15 in 3 hours
15÷3= 5
5 bars of soap an hour
if she works 6 hours
5x6=30
every Saturday, 4 Saturdays
30x4=120