HELP ASAP PLEASE!!!
In the past 3 years, Hannah’s savings account has earned $90 in interest. She initially deposited $600. What simple annual interest rate is the bank paying on this account?
A. 2.7%
B. 3.5%
C. 4.0%
D. 5.0%
A climber is on a hike. After 2 hours he is at an altitude of 400 feet. After 6 hours, he is at an altitude of 700 feet.
What is the average rate of change?
A 75 feet per hour
B 200 feet per hour
C 116 feet per hour
D 100 feet per hour
Which of the following are not congruence theorems for right triangles? Check all that apply.
A. LA
B. HL
C. AA
D. HA
E. HH
F. LL
Answer:
E. HH, C. AA
Step-by-step explanation:
Got these from the quiz
make a conjecture about the next item in the sequence.
6,8,-32,-30,120
answer choices....... a.122 b.-480 c. -488 d. 116 ...?
The sequence alternates between adding 2 and multiplying by -4. Starting with 6, the sequence progresses by these operations to reach 120. Following this pattern, the next term after 120 is a) 122 by adding 2.
The student has asked to make a conjecture about the next item in the sequence 6, 8, -32, -30, 120. To determine the pattern, let's look at the differences between each pair of numbers.
From 6 to 8, we add 2.
From 8 to -32, we multiply 8 by -4.
From -32 to -30, we add 2.
From -30 to 120, we multiply -30 by -4.
It appears that the sequence alternates between adding 2 and multiplying by -4. Following this pattern, after 120 the next operation should be adding 2.
Therefore, the next number in the sequence would be 120 + 2 = 122. Hence, the answer is option a. 122.
Kalon has $175 and needs to save at least $700 for a new computer. If he can save $35 per week, what is the minimum number of weeks Kalon will need to save to reach his goal?
A.10 weeks
B.12 weeks
C.15 weeks
D.20 weeks
Factor the expression.
9x^2 + 48x + 64
A dvd costs $20 the sales tax is 6.5% how much sales tax do you have to pay
using the quadratic formula 3x2 – 13x + 4 = 0
Given that the hypotenuse of this right triangle is 25 cm long and that tan(θ) = 3find the values of x and y, accurate to the nearest tenth.
Answer:x ≈ 7.9; y ≈ 23.7
Step-by-step explanation:
The right triangle above you can use SOHCAHTOA and determine that tanθ =
y
x
. Replacing tanθ with 3 you get
3 =
y
x
3x = y
Then use the Pythagorean Theorem to
x2 + y2 = 252. Replace y with 3x
x2 + 9x2 = 625
10x2 = 625
x2 =
625
10
x =
25
10
= 7.9
Since,
y = 3x
y = 3(7.9) = 23.7
In 1992, jason bought a gallon of gas for $1.23. yesterday, he bought a gallon of gas for $2.19. what is the percentage increase of the price of a gallon of gas from 1992 to yesterday? if necessary, round to the nearest tenth of a percent.
Answer:
39.7
Step-by-step explanation:
ABC has vertices A(0,6) B(4,6) C(1,3). Sketch a graph of ABC and use it to find the orthocenter of ABC. Then list the steps you took to find the orthocenter including any necessary points or slopes you had to derive.
To find the orthocenter of triangle ABC with vertices A(0,6), B(4,6), and C(1,3), one must plot the triangle, calculate the slopes of its sides, find the slopes and equations of the altitudes, and determine their intersection point, which is the orthocenter.
The question involves finding the orthocenter of the triangle ABC with vertices A(0,6), B(4,6), C(1,3). To find the orthocenter, we have to identify the altitudes of the triangle and find their point of intersection. Here are the steps:
Plot the points A(0,6), B(4,6), C(1,3) on the Cartesian coordinate system and draw the triangle ABC.Find the slopes of the sides of triangle ABC: The slope of AB is 0 (horizontal line), the slope of BC and AC can be found using the formula [tex](y_2 - y1) / (x_2 - x1)[/tex].Determine the slopes of the altitudes: The slope of an altitude is the negative reciprocal of the slope of the side it is perpendicular to.Find the equations of the lines representing the altitudes by using the point-slope form of the equation of a line, which involves a point on the line (vertex of the triangle) and the slope you've just found.Calculate the point of intersection of any two altitudes. The intersection point is the orthocenter of the triangle.Upon completing these steps, the point of intersection is the orthocenter of the triangle ABC.
the table below represents the total number of laps jessica swam in the pool this summer.
week 1 18 laps week 2 28 laps week 3 38 laps week 4 48 laps
if the linear function representing the number of laps jessica swam each week is f(w)=10w+8. what does the 10 represent in this function?
In the function f(w) 10w+8, the number 10 represents the number of laps Jessica increased her swim by each week.
To find out what the coefficient 10 represents in the linear function f(w) = 10w + 8, we need to understand the structure of the function.
In this function:
- w represents the week of the summer.
- f(w) represents the number of laps Jessica swam in week w.
- The coefficient 10 is multiplied by w, indicating a relationship.
Since the linear function represents the number of laps Jessica swam each week, the coefficient 10 represents the number of laps Jessica increased her swim by each week.
So, the correct answer is: C. The number of laps Jessica increased her swim by each week
Complete question:
The table below represents the total number of laps Jessica swam in the pool this summer:
Week Laps
1 18
2 28
3 38
4 48
If the linear function representing the number of laps Jessica swam each week is f(w) 10w+8, what does the 10 represent in this function?
The number of laps Jessica swam in total
The week of the summer that Jessica swam
The number of laps Jessica Increased her swim by each week
A The number of laps Jessica swam in week
what's is width of a rectangle with an area of 5/8 in and a length of ten inches
Marge has 4 more than 2 times as many books as Susan. If Marge has 22 books and x is the number of books that Susan has, the relationship can be written as 4 + 2x = 22. How many books does Susan have?
8
9
10
11
Convert 1.50 μm² to square meters.
what is the answer to this : (3m 3 - y)(3m 3 - y)
A child takes a nap averaging three hours and gets an average of 12 hours of sleep at night. Nap time and night time sleep can each vary by 30 mins. What are the possible time lengths for the child's nap and night time sleep? ...?
Final answer:
The possible time lengths for the child's nap are 2.5 to 3.5 hours, and for night time sleep are 11.5 to 12.5 hours, as each can vary by up to 30 minutes.
Explanation:
The question asks about the possible time lengths for a child's nap and night time sleep, given that each can vary by 30 minutes. The average nap time is three hours, so the possible nap lengths range from 2.5 hours (3 hours - 30 minutes) to 3.5 hours (3 hours + 30 minutes). Similarly, the average night time sleep is 12 hours, meaning the possible night time sleep lengths range from 11.5 hours (12 hours - 30 minutes) to 12.5 hours (12 hours + 30 minutes).
The child's nap can be from 2.5 to 3.5 hours and night sleep from 11.5 to 12.5 hours, totaling a possible sleep range of 14 to 16 hours per day.
Explanation:The child's nap time can vary by 30 minutes from the average of 3 hours, meaning the possible lengths for nap time range from 2.5 hours to 3.5 hours. Similarly, the night time sleep also has a variability of 30 minutes from the average of 12 hours, which gives a range of 11.5 hours to 12.5 hours for night time sleep. Therefore, the possible lengths for the child's total sleep time can range from a minimum of 14 hours (2.5 hours nap + 11.5 hours night) to a maximum of 16 hours (3.5 hours nap + 12.5 hours night).
Write a real-world prblem in which you would need to convert pints to cups
On April 11, 2012, two earthquakes were measured off the northwest coast of Sumatra. The first had a magnitude of 8.6. The second had a magnitude of 8.2. By what approximate factor was the intensity of the first earthquake greater than the intensity of the second earthquake?
0.40
1.02
1.05
2.51
Answer:
Option D. 2.51 is correct.
Step-by-step explanation:
Magnitude of first earthquake = 8.6
Let intensity of first earthquake be x
[tex]Magnitude = \log(\frac{x}{S}),\text{ where S is seismographic factor}\\\\\implies 8.6=\log(\frac{x}{S}).......(1)[/tex]
Magnitude of second earthquake = 8.2
Let intensity of second earthquake be y
[tex]Magnitude = \log(\frac{y}{S}),\text{ where S is seismographic factor}\\\\\implies 8.2=\log(\frac{y}{S}).......(2)[/tex]
Now, to find the factor by which intensity of first earthquake is greater than intensity of second : we divide equation (1) by equation (2)
[tex]\implies\log(\frac{x}{y})=8.6 - 8.2\\\\\implies \log(\frac{x}{y})=0.4\\\\\implies\frac{x}{y}=10^{0.4}\\\\\implies\frac{x}{y}=2.51[/tex]
Hence the required factor is 2.51
Therefore, Option D. 2.51 is correct.
Answer:
2.51
Step-by-step explanation:
1/5n -3/4 + 7/10n
Need to simplify
You measure a piece of rope and find its length to be 13 m. Find the percent error of this measurement.
I know the answer, but how to solve?
8x + 2y= 10
Solve the equation for y ...?
On level ground, a 60-foot-tall vertical building casts a 10-foot shadow. at the same time, another vertical building casts a 25-foot shadow. how many feet tall is the second building?
Using the concept of similar triangles, the height of the second building is calculated to be 150 feet, since its 25-foot shadow corresponds proportionally to the 60-foot building's 10-foot shadow.
Explanation:To find the height of the second building given that a 60-foot-tall building casts a 10-foot shadow, and another building casts a 25-foot shadow, we can use the concept of similar triangles. The idea behind similar triangles is that corresponding sides of similar triangles are proportional. Therefore, if one building is 60 feet tall and casts a 10-foot shadow, the ratios of the height to shadow length will be the same for the second building.
To set up the proportion, we have:
We can write the proportion as:
h1/s1 = h2/s2
Substituting the known values into the proportion gives us:
60/10 = x/25
Now we solve for x:
x = (60/10) * 25
x = 6 * 25
x = 150
Therefore, the height of the second building is 150 feet.
Ashley's penny bank is 1/4 full. After she adds 400 pennies, it is 2/3 full. How many pennies can Ashley's bank hold?
show that if k is a positive constant, then the area between the x-axis and one arch of the curve y=sin kx is 2/k
Which equation, when graphed, has x-intercepts at (−1, 0) and (−5, 0) and a y-intercept at (0, −30)?
f(x) = −6(x + 1)(x + 5)
f(x) = −6(x − 1)(x − 5)
f(x) = −5(x + 1)(x + 5)
f(x) = −5(x − 1)(x − 5)
Answer:
Option A
Step-by-step explanation:
The equation has x intecepts at -1 and -5.
Hence function would be of the form
a(x+1)(x+5) for some real a.
To find a, let us use y intercept
When x =0 we have y =a(1)(5)
y intercept is given as -30
i.e. 5a = -30
a=-6
So
f(x) = -6(x+1)(x+5)
Option A is the right answer.
the function p(t)=350e^-.2t represents the population of a city, in thousands, t years after 2010. determine the population of the city in 2014
For each function, what is the output of the given input?
For f(x) = 4x+7, find f(4)
Answer:
f(4)=23
Step-by-step explanation:
Plug 4 in to the function
f(4)=4(4)+7
f(4)=16+7
f(4)=23
Final answer: 23
b+c=10/a
solve for a ...?
To solve the equation b + c = 10/a for a, isolate a on one side of the equation by multiplying both sides by a, distribute a to both terms inside the parentheses, and then solve for a by dividing both sides by (b + c).
Explanation:To solve the equation b + c = 10/a for a, we need to isolate a on one side of the equation. We can start by multiplying both sides of the equation by a to get rid of the denominator:
a(b + c) = 10
Next, we can distribute a to both terms inside the parentheses:
ab + ac = 10
Finally, we can solve for a by dividing both sides of the equation by (b + c):
a = 10 / (b + c)