Answer:
H=44
Step-by-step explanation:
−(−62)+8=−(−36)+8=36+8=44
Answer:
-28
Step-by-step explanation:
-x^2+8
-(-6)^2 + 8 (-6 to the 2 power)
-36 + 8
-28
"The Kid Laroi"- Rapper-Songwriter
if a geometric progression G2= -10, G4= -8/5 and G5 is positive, what is the general formula for Gn?
what is 30% -21% nk wnn
Plz Help Me
A system of two equations is shown.
2 + 2y = 6
2x - 3y = 26
What is the solution of the system?
0 (-2,3)
(1, -2)
O (-2.4)
(10.-2)
Answer:
The solution to the system of equations be:
(x, y) = (16, 2)
Step-by-step explanation:
Given the system of equations
2 + 2y = 6
2x - 3y = 26
Isolate y for 2+2y=6
2+2y=6
subtract 2 from both sides
2+2y-2 = 6-2
2y = 4
divide both sides by 2
2y/2 = 4/2
y = 2
now substitute y = 2 in 2x - 3y = 26
2x - 3y = 26
2x - 3(2) = 26
2x-6=26
add 6 to both sides
2x-6+6=26+6
2x = 32
divide both sides by 2
2x/2 = 32/2
x = 16
Therefore, the solution to the system of equations be:
(x, y) = (16, 2)
Note: It seems you may have missed adding the correct option in your answer choices.
Which is an example of a cash transaction?
A): a TV streaming service payment automatically debited from a checking account on the 21st of each month
B): paying for gas at the pump with a credit card
C): taking out a student loan
D): financing a new car
Simplify the expression.
we
8 + 3
the answer of this question is 11
Answer:
8+3=11
Step-by-step explanation:
you have to add 8+3 and get 11
2 and 3 ! Please help
Answer:
2.) yes
3.) x=3
Step-by-step explanation:
2.) if u plug in 2 into the x-value, then the y-value equals to 5 (so it's correct)
3.)
y = 6
2x + 6 = 12
x = 3
Leiha buys 19 apples in the grocery store. She makes 2 pies and puts the leftover 7 apples in the refrigerator. How many apples did she use in each pie?
Answer:
6 apples per pie
Step-by-step explanation:
2x+7=19
x=# of apples per pie
Subtract 7 from both sides:
2x=12
Divide both sides by 2:
x=6
I will give brainiest to whoever answers correctly !!
Please do not steal my points I'm tired of it put a legit answer or leave!! I will give brainiest to whoever answers correctly!!
HELP PLEASE ANYONE OR SOMEONE HELP. It’s due in 10 minutes.
Which is the correct answer? Show how you know.
Justin has 23 marbles to give to five of his friends he gives each friend the same number of marble keeps only the remainder how many marbles does Justin keep
Answer:
Justin only keeps 3 marbles while his friends get 4 marbles each
amelia is wrapping ribbon around a circular present that has a diameter of 4 inches if she wants to wrap the present three complte times how long of a piece of ribbon will she need round to the nearest inch
Answer:
Response:12 inches
Step-by-step explanation:
Explanation step-by-step: 4*3=12 inches
Pls someone help!! Im failing. Plsssss
Answer:
I think it is the third one.
Step-by-step explanation:
Answer:
Step-by-step explanation:
8 + p/10 >= 3
p/10 >= -5
p >= -50
A random sample of 16 airline passengers at the Ontario Airport showed that the mean time spent in line to check in at the ticket counters was 18 minutes with a standard deviation of 7 minutes. Construct and interpret a 99% confidence interval for the mean time spent waiting in line by all passengers at this airport. Assume that such waiting times
Answer:
The 99% confidence interval for the mean time spent waiting in line by all passengers at this airport is between 12.84 minutes and 23.16 minutes. It means that we are 99% sure that the truw mean waiting time for all passengers in this airport is in this interval.
Step-by-step explanation:
We have the standard deviation for the sample, so we use the t-distribution to solve this question.
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 36 - 1 = 15
99% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 15 degrees of freedom(y-axis) and a confidence level of [tex]1 - \frac{1 - 0.99}{2} = 0.995[/tex]. So we have T = 2.947
The margin of error is:
[tex]M = T\frac{s}{\sqrt{n}} = 2.947\frac{7}{\sqrt{16}} = 5.16[/tex]
In which s is the standard deviation of the sample and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 18 - 5.16 = 12.84 minutes
The upper end of the interval is the sample mean added to M. So it is 18 + 5.16 = 23.16 minutes
The 99% confidence interval for the mean time spent waiting in line by all passengers at this airport is between 12.84 minutes and 23.16 minutes. It means that we are 99% sure that the truw mean waiting time for all passengers in this airport is in this interval.
What number is 0.2% of 80 round the answer to the nearest hundredth if necessary
Answer:
0.16
Step-by-step explanation:
You have a coupon for an additional 25% off the price of any sale item at the store. The store has put a robotics kit on sale for 15% off the original price or $40. What is the price of the robotics kit after both discounts?
Answer:
The price of the robotics kit should be $34 dollars
Step-by-step explanation:
First we have to find out what 25% and 15% of 40 is.
25% of 40 = 10
15% of 40 = 6
Next we have to add 10 plus 6 then subtract 40 by it.
10 + 6 = 16
40 - 16 = 34
So, the robotics kit should cost 34 dollars after both discounts.
Water is slowly leaking from a bird bath at the rate of 8 cm3/min. The birdbath is in the shape of a cone with the vertex down and the radius is double the height. How fast is the water level changing when the water is 10 cm deep
Answer:
The water level is changing at - 0.016 centimeters per minute when the water is 10 centimeters deep.
Step-by-step explanation:
From Geometry, the volume of the cone ([tex]V[/tex]), measured in cubic centimeters, is defined by:
[tex]V = \frac{\pi\cdot r^{2}\cdot h}{3}[/tex] (1)
Where:
[tex]r[/tex] - Radius, measured in centimeters.
[tex]h[/tex] - Height, measured in centimeters.
Then, we find a formula for the rate of change of the volume of the birth bath ([tex]\dot V[/tex]), measured in cubic centimeters per minute, by means of differentiation:
[tex]\dot V = \frac{\pi}{3}\cdot \left(2\cdot r\cdot h\cdot \dot r + r^{2}\cdot \dot h \right)[/tex] (2)
Where:
[tex]\dot r[/tex] - Rate of change of radius, measured in centimeters per minute.
[tex]\dot h[/tex] - Rate of change of height, measured in centimeters per minute.
In addition, we have the following relationship:
[tex]r = 2\cdot h[/tex] (3)
And by Differential Calculus:
[tex]\dot r = 2\cdot \dot h[/tex] (4)
By applying (3) and (4) in (2), we find the following expanded formula:
[tex]\dot V = \frac{\pi}{3}\cdot \left[2\cdot (2\cdot h)\cdot (2\cdot \dot h)+4\cdot h^{2}\cdot \dot h\right][/tex]
[tex]\dot V = \frac{\pi}{3}\cdot (8\cdot h+4\cdot h^{2})\cdot \dot h[/tex] (5)
If [tex]\dot V = -8\,\frac{cm^{3}}{min}[/tex] and [tex]h = 10\,cm[/tex], then the rate of change of the water level is:
[tex]\dot h = \frac{\dot V}{\frac{\pi}{3}\cdot (8\cdot h + 4\cdot h^{2}) }[/tex]
[tex]\dot h = \frac{-8\,\frac{cm^{3}}{min} }{\frac{\pi}{3}\cdot [8\cdot (10\,cm)+4\cdot (10\,cm)^{2}] }[/tex]
[tex]\dot h \approx -0.016\,\frac{cm}{min}[/tex]
The water level is changing at - 0.016 centimeters per minute when the water is 10 centimeters deep.
pls answer number 12
Answer:
$1.50
Step-by-step explanation:
When you add $0.29 and $1.23 you get $1.52
then you round $1.52 down to get $1.50 because $1.52 is closer to $1.50 than it it closer to $1.60
6-(-2)-(-5)= find the difference
Answer:
answer = -1
Step-by-step explanation:
Karen runs 3 miles in 28 minutes. At the same rate, how many miles would she run in 42 minutes?
Answer:
4.5
Step-by-step explanation:
Well, she runs 3 miles in 28 minutes.
42 = 28 ⋅ 1.5
So, her journey would just be running
1.5
times, with each time running
28
minutes.
So, she runs a total of
1.5 ⋅ 3 = 4.5 miles
1. What statement about 8 multiplied by 7/4
must be true?
2..
sp
rep
cal
A. The product is less than 2.
B. The product is greater than 8.
C. The product is between 1 and 8.
D. The product is between 8 and 9.
Answer: B
Step-by-step explanation: 7/4 time 8/1 is 56/4 which simplifies to 14. B is the only statement that satisfies this
A manufacturer of banana chips would like to know whether its bag filling machine works correctly at the 449.0 gram setting. It is believed that the machine is underfilling the bags. A 37 bag sample had a mean of 441.0 grams. A level of significance of 0.05 will be used. Determine the decision rule. Assume the standard deviation is known to be 18.0.
Answer:
the decision rule is to reject H0 if Z is < -1.645
Step-by-step explanation:
this question is interested in the decision rule.
H0: u = 449
H1 : u <449
We find the test statistic
Mean bar x = 441
u = 449
Sd = 18
n = 37
Z = barX - u / sd/√n
= 441-449/18/√37
= -8/18/6.083
= -8/2.959
Z = - 2.7036
This is the value of the test statistic
The critical value at 0.05 = -1.645. this is a left tailed test
The decision rule is to reject H0 if Z < -1.645
The test statistic is less than the critical value
-2.7036 < -1.645
So we have enough evidence to reject H0. At 0.05 level we have enough evidence to support claim.
1/2 (18x + 9) = 3/2 (x - 2)
Answer: x = −1
ask if you need explanation
s
solve for X
2x - Px = 5
Answer:
[tex]2x - P = 5 \\ x(2 - P) = 5 \\ \boxed{x = \frac{5}{(2 - P)} }[/tex]
Subtract these polynomials.
Answer:
D is answer
Step-by-step explanation:
you will subtract like terms
Answer:
It is D
Step-by-step explanation:
Adam earns $36 for every four hours of work. If he continues to be paid at the same rate:
a. How long will it take him to earn $144? Show and explain your reasoning.
b. How long will it take him to earn $222? Show and explain your reasoning.
c. How could you describe his rate for a 40-hour work week? For a 7-hour day? Show and explain your reasoning.
Answer:
a certain number that i do not know
Step-by-step explanation:
a). It will take 16 hours to earn $144.
b). It will take 24.67 hours to earn $222
c). In a 40 hours week he will earn $360.
In a 7 hours day he will earn $63.
Proportionality if two variables: If two variables 'x' and 'y' represent number of hours worked and total earning respectively,
Proportionality law states,
y ∝ x
y = kx [here, k = proportionality constant]
If Adam earns $36 in 4 hours,
36 = 4k
k = 9
Therefore, expression for total earnings will be,
y = 9x
a). For y = $144,
144 = 9x
x = 16 hours
b). For y = $222,
222 = 9x
x = 24.67 hours
c). For 40 hour week,
y = 9(40) = $360
Adam will earn $360 in a week by the rate $9 per hour.
For 7 hour day,
y = 9(7) = $63
Adam will earn $63 in a day by the rate of $9 per hour.
Therefore, a). It will take 16 hours to earn $144.
b). It will take 24.67 hours to earn $222.
c). In a 40 hours week he will earn $360.
In a 7 hours day he will earn $63.
Learn more about the proportionality relation here,
https://brainly.com/question/5837592?referrer=searchResults
HELP ME PLSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
Please answer this correctly without making mistakes
Answer:
4 gal 3qt
Step-by-step explanation:
Han has a new puppy that weighs 6 pounds.the vet says that the puppy is now 20% of its adult weight what will be adult number line
Answer:
6 12 18 24 30
20% 40% 60% 80% 100%
Step-by-step explanation:
smarts
GIVING BRAINLIEST! A rectangular garden has a width of 10 feet and a length of 14 feet. A cement walkway is added around the outside of the garden. The area of the garden and the walkway together are 396 square feet. What is the width of the walkway?
I will give you a hint on how to start:
The new width is 10 + 2x and the new length is 14 + 2x.
Given:
Width of a garden = 10 feet
Length of the garden = 14 feet
Area of the garden and the walkway together = 396 square feet.
To find:
The width of the walkway.
Solution:
A cement walkway is added around the outside of the garden.
Let x be the width of the walkway.
The width of the garden with walkway = 10+2x
The length of the garden with walkway = 14+2x
Area of a rectangle is
[tex]Area=length\times width[/tex]
Area of garden and the walkway together is
[tex]Area=(14+2x)\times (10+2x)[/tex]
[tex]396=140+28x+20x+4x^2[/tex]
[tex]396=140+48x+4x^2[/tex]
[tex]396=4(35+12x+x^2)[/tex]
Divide both sides by 4.
[tex]99=35+12x+x^2[/tex]
[tex]0=35-99+12x+x^2[/tex]
[tex]0=-64+12x+x^2[/tex]
Splitting the middle term, we get
[tex]x^2+16x-4x-64=0[/tex]
[tex]x(x+16)-4(x+16)=0[/tex]
[tex](x+16)(x-4)=0[/tex]
Using zero product property, we get
[tex](x+16)=0\text{ and }(x-4)=0[/tex]
[tex]x=-16\text{ and }x=4[/tex]
Width of walkway cannot be negative. So, x=4.
Therefore, the width of the walkways is 4 feet.
Answer:
Width = 4 feets_____________☁️☁️
Hope it helps
~ƒöᏝϗʆѻʁᶥąռ¹₃
Helen is pushing the handle of a push broom with a force of 190 newtons at an angle of 33 degrees with the ground. Find the magnitudes of the horizontal and vertical components rounded to the nearest tenth.
Horizontal Force __ N
Vertical Force __ N
Answer:
Horizontal=159.3
Vertical=103.5
Step-by-step explanation
I don't really know but these are the answers
The magnitude of the horizontal force is approximately 159.6 N, and the magnitude of the vertical force is approximately 103.5 N.
To find the horizontal and vertical components of the force applied by Helen, we can use trigonometric functions.
Given that Helen is pushing the handle of a push broom with a force of 190 newtons at an angle of 33 degrees with the ground, we can determine the horizontal and vertical components as follows:
Horizontal Force: To find the horizontal component, we use the cosine of the angle:
Horizontal Force = Force * cos(angle)
Horizontal Force = 190 N * cos(33°)
Calculating the value:
Horizontal Force ≈ 190 N * 0.8387
Horizontal Force ≈ 159.6 N (rounded to the nearest tenth)
Vertical Force: To find the vertical component, we use the sine of the angle:
Vertical Force = Force * sin(angle)
Vertical Force = 190 N * sin(33°)
Calculating the value:
Vertical Force ≈ 190 N * 0.5446
Vertical Force ≈ 103.5 N (rounded to the nearest tenth)
Therefore, the magnitude of the horizontal force is approximately 159.6 N (rounded to the nearest tenth), and the magnitude of the vertical force is approximately 103.5 N (rounded to the nearest tenth).
To know more about magnitudes click here :
https://brainly.com/question/14059006
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