Answer:
No, the equation is not a good fit because the residuals are all far from zero.
Step-by-step explanation:
i hope i helped :)
The relationship between the total distance traveled in miles, y, and time, in hours, x, can be described by the equation y=65x. What is the constant of proportionality?
There are 100 bacteria in a jar. Every day, the number of bacteria increases 25%. In approximately how many days will there be 500 bactria in the jar? Pick the closest answer.
A. 3
B. 12
C. 10
D. 2
E. 7
Answer:
E. 7
Step-by-step explanation:
General form of exponential equation: [tex]y=ab^x[/tex]
where [tex]a[/tex] is the initial value, [tex]b[/tex] is the growth/decay rate, and [tex]x[/tex] is time.
Given:
[tex]a[/tex] = 100 bacteria[tex]b[/tex] = 25% increase = 1.25[tex]x[/tex] = number of days⇒ [tex]y=100 \cdot 1.25^x[/tex]
If y = 500, then:
[tex]\implies 500=100 \cdot 1.25^x[/tex]
[tex]\implies 5=1.25^x[/tex]
[tex]\implies \ln5=\ln1.25^x[/tex]
[tex]\implies \ln5=x\ln1.25^[/tex]
[tex]\implies x=\dfrac{\ln5}{\ln1.25}[/tex]
[tex]\implies x=7.212567439...[/tex]
[tex]\implies x \approx7[/tex]
find the degree measure of angle a in the diagram below
Answer: 30
Step-by-step explanation:
Find the length of the hypotenuse round to the nearest hundredth
Answer:
[tex]\displaystyle 4\sqrt{5}[/tex]
Step-by-step explanation:
Use the Pythagorean Theorem:
[tex]\displaystyle a^2 + b^2 = c^2 \\ \\ 8^2 + 4^2 = c^2; \sqrt{80} = \sqrt{c^2} \\ \\ 4\sqrt{5}\:[or\:8,94427191...] = b[/tex]
So, you have this:
[tex]\displaystyle 8,94 ≈ c[/tex]
I am joyous to assist you at any time.
Solve for x in the diagram below (6x-2)
Answer:
x=12 is the answer to this question
You open a brand-new savings account January 1, 2021. Every paycheck you earn you deposit $25 into a savings account, and you never make any withdrawals from this account. Your savings account makes 0.01% interest and is compounded monthly. Assuming you get paid every two weeks (twice a month) how much money will you have at the end of the year?
The amount of money that you will have at the end of the year from your brand-new savings account is $600.69.
What is future value?The future value is the value of periodic cash flows in the future. It can be computed using an online finance calculator as follows:
Data and Calculations:N (# of periods) = 24 (12 X 2)
I/Y (Interest per year) = 0.12% (0.01% X 12)
PV (Present Value) = $0
PMT (Periodic Payment) = $25
Results:
FV = $600.69
Sum of all periodic payments = $600.00 ($25 X 24)
Total Interest = $0.69
Thus, the amount of money that you will have at the end of the year from your brand-new savings account is $600.69.
Learn more about future values at https://brainly.com/question/24703884
Please help!! Determine if 3 and 4 are linear the explain why it why not
Can the side lengths of 4, 8, and 14 form a triangle?
Answer:
No.
Step-by-step explanation:
8+4, the sides is not greater than 14, so no.
Daniel has $100. After he buys 4 pencils and 3 pens, he has $7 left. If each pencil costs $3 more than each pen, is $25 enough to buy 2 pens?
Answer: Yes, Daniel has enough money to buy 2 pens.
=========================================================
Explanation:
x = cost of one pencil
y = cost of one pen
4x = cost of 4 pencils
3y = cost of 3 pens
4x+3y = cost of 4 pencils and 3 pens
100 - (4x+3y) = amount Daniel has left = 7 dollars
100-(4x+3y) = 7 is one equation we can form
Another equation we can form is x = y+3 because "each pencil costs $3 more than each pen".
Let's plug that into the first equation and solve for y.
100-(4x+3y) = 7
100-(4(y+3)+3y) = 7
100 - (4y+12+3y) = 7
100 - (7y+12) = 7
100 - 7y - 12 = 7
-7y + 88 = 7
-7y = 7-88
-7y = -81
y = -81/(-7)
y = 11.57 is the cost of one pen
2y = 2*11.57 = 23.14 is the cost of two pens.
Since this is less than $25, this means he has enough to buy two pens. This assumes that we either ignore tax, or the tax is already included in the listed prices.
Given 8x=-24, What is the value of x?
a. -3
b. 12
c. -2
d. 3
Answer:
divide both sides by 8.
x=-3
4. April took out a $600 loan from the
bank. At the end of 5 years, she pays
back the principal, plus $60 simple
interest. What was the interest rate?
7. Cora's
weigh
thev
perc
rou
1 of 2
Assessment, Form A
Answer:
60/600=.1
.1/5=.02=2% interest rate over 5 years
Is this correct? If not what is the correct answer
Answer:
it would be the first one
Step-by-step explanation:
At the book store you purchased some $5 clearance mystery books and $12 regular priced science fiction books how many of each did you buy if you spent a total of $126?
5 mystery and 9 sci-fi
6 mystery and 8 sic-fi
7 mystery and 7 sci-fi
8 mystery and 6 sci-fi
Answer:
To find the answer to this question, we have to multiply the number of books by the price, then add the prices together. I did this, but it seemed that none of the answer choices are correct. Make sure you included all important information that we need to answer the question.
Step-by-step explanation:
At an intersection, the red-light times are normally distributed with a mean time of 3 minutes and a standard deviation of 0. 25 minutes. Using the empirical rule, approximately what percent of red lights last between 2. 5 and 3. 5 minutes? 32% 68% 95% 99. 7%.
The red light lasts between 2.5 minutes and 3.5 minutes is 95 %. Then the correct option is C.
What is normal a distribution?It is also called the Gaussian Distribution. It is the most important continuous probability distribution. The curve looks like a bell, so it is also called a bell curve.
At an intersection, the red-light times are normally distributed with a mean time of 3 minutes and a standard deviation of 0. 25 minutes.
In this case, the mean is 3 and the standard deviation is 0.25, We move one space to the right that would represent 3.25 minutes, one more space to the right that is 3.50 minutes. Similarly, we move one space to the left, this would be 2.75, one more space to the left, and the shows 2.50 minutes.
Thus, the correct option is C.
More about the normal distribution link is given below.
https://brainly.com/question/12421652
HELPPP FOR BRIANLEST!!!
Answer:
1/16
Step-by-step explanation:
NOT vanilla and NOT Saturday (1) over total (16)
1/16
What is this question?
Answer:
so its saying ummm write x with < or > or the other ones but with equal on the bottom
i think the answer here would be x < 5
Step-by-step explanation:
because it cannot be equal to 5 since the circle is hollow. also x just goes to the number less than 5
A bird drops a stick to the ground from a height of 70ft. The function h = -16t^2 + 70 gives the stick's approximate height h above the ground, in feet, after t seconds. Graph the function. At about what time does the stick hit the ground?
Answer:
√ 80/16=t t=0.5590169943749474
Step-by-step explanation:
The function h(t) = -16t^2 + 70 is a quadratic function, and the stick hits the ground at about 2.092 seconds
Here, we have,
to determine the time it hits the ground:
The function is given as:
h(t) = -16t^2 + 70
Next, we plot the graph of the function h(t)
From the graph of the function h(t) (see attachment), we have the following highlight:
t = -2.092 and t = 2.092 when h(t) = 0
Time cannot be negative.
So, we have:
t = 2.092
This means that the stick hits the ground at about 2.165 seconds
Read more about quadratic functions at:
brainly.com/question/8649555
#SPJ2
find the value x from the diagram below and then find M ∠ ABC
Answer:
Answer: x = [tex]\frac{25}{6}[/tex]
∠ABC = 53°
Step-by-step explanation:
Solution In given triangle, 2B=12x+3
12x+3
∠A = 86 , ∠C = 43°
We know that, Sum of all angles of triangle is 180°
86
∴ ∠A+ ∠B + ∠C = 180°
a
86 + 12x+3+ 43 = 180°
4-3
12x = 180° - 130
X = [tex]\frac{50}{12}[/tex] x = [tex]\frac{25}{6}[/tex]
с
∠ABC = 12x + 3 = [tex]\frac{12}{6}[/tex]x25 +3 → 50+3 = 53
suppose ice cream cones were sold on Saturday and were sold on Sunday. What is the 8 + 25 7x − 9 total number of ice cream cones sold?
Answer:
is a figure giving a long side right in names the point and lines
Expand
3(x + 4)
Could you explain the answer as well and I hope u have an amazing day if your reading this<33
Answer:
See below.
Step-by-step explanation:
3(x+4)
You multiply 3 by all of the terms in the parenthesis.
3*x and 3*4
The simplified product is 3x+12.
-hope it helps
helppppppppppppp:))))
please please please please please please
One sponsor will donate $80 just for entering the race. Another sponsor will donate $12 for each mile she walks. How many miles should she walk if she wants to raise exactly $200 from those two sponsors?
Answer:
10 miles
Step-by-step explanation:
first you subtract 80 from 200
200-80= 120
then you divide 120 by 12
120/12= 10
she will need to walk 10 miles in order to raise 200 dollars
hope this helped!
Justin builds a triangular fenced area for his dog called Triangle ABC. If AB = 17 ft and BC = 8ft, and angle C is a right angle, which of the following are true? Select all that apply.
ロThe missing side measures 12.5 ft.
ロ The missing side of the fence measures 15 ft.
ロ The perimeter of the fence is 40 ft.
ロ The perimeter is 37.5 ft.
ロ The area inside the fenced in section is 60 sq ft
ロ The area inside the fenced section is 68 sq ft.
The missing side of the fence measures 15 ft
The perimeter of the fence is 40 ft
The area inside the fenced in section is 60 ft²
The fence is triangular and a right triangle.
Right triangle:A right triangle has one of its angle as 90 degrees. Therefore, the sides can be found using Pythagoras theorem.
c² = a² + b²
17² - 8² = b²
b = 15 ft
AC = 15 ft
perimeter of the triangle = 15 + 8 + 17 = 40 ft
Area of the triangle = 1 / 2 × 15 × 8 = 60 ft²
Therefore,
The missing side of the fence measures 15 ft
The perimeter of the fence is 40 ft
The area inside the fenced in section is 60 ft²
learn more on right angle triangle here; https://brainly.com/question/2192748
when 25 percent is allowed,a customer pays Rs 1680 to buy a watch.Find the cost of the watch before the discount.
Answer:
nobody knows, go to a shop
Step-by-step explanation:
Dante watched a video for 3/8 minutes. He watched another video for 1/8 minutes.
For how long did he watch videos in all?
Write your answer as a fraction in simplest form.
Answer:4/8 are u in pre?
Step-by-step explanation:
Carmen buys 153 shares of Cawh Consolidated Banks, each of which pays a constant yearly dividend of $7. 14. After six years, how much has Carmen received in dividends? a. $5,783. 40 b. $1,820. 70 c. $1,092. 42 d. $6,554. 52 Please select the best answer from the choices provided A B C D.
Answer:
d. $6,554.52
Step-by-step explanation:
1) 153 shares x $7.14 = $1092.42
2) $1092.42 x 6 = $6,554.52
Suspensions require active mixing to stay suspended
Answer:
any other part of the question?
Step-by-step explanation:
What is the 11/30 take away 3/10 in it’s simplest form
Answer:
1/15 is simplest, answer 2/30
Step-by-step explanation:
11/30 - 3/10. Find LCD
Since it's 30, leave 11/30 how it is and turn 3/10 into 9/30
Next, 11-9=2
meaning 2/30, which if you divide by 2 both sides, you get 1/15.
Help me out it’s urgent
Answer:
sorry but i also dont kbow
For one photography session, Dexter earns no less than $50, but no more than $100. Which inequality can be used to represent his earnings, e?
e ≥ 50 or e ≤ 100
e > 50 or e < 100
50 < e < 100
50 ≤ e ≤ 100
Answer:
The 4th - 50 ≤ e ≤ 100
Step-by-step explanation:
Hope this helps!
Answer:
D
Step-by-step explanation:
[tex]50 \leqslant e \leqslant 100[/tex]
this is because e is greater than 50 but 100 is greater than e
pls give brainliest