Answer:
see explanation
Step-by-step explanation:
so, when a=-3, c is -20. now, to find b when a is -3, plug a (which is -3) into the equation b=4a-5 to get b=-17. so b=-17, c=-20. b is obviously larger (remember the negative sign)
when c is 21, a is 5. plug numbers in to get b=15.
when a is 6, there is no clear value for c, so i'd guess undefined. b however is 19
we can plot the line and the points, for problem 4 and all points above the line means that c is greater than b, and when below it's less than. doing this we get when a is 12, when a is 0, and when a is 5. hope this was clear
PLEASEI BEG U ALL PLEASE 26 POINTSPLEASE JUST HELP ME ON THIS I DONT HAVEMUCH TIMELEFT
Answer:
a) 14
b) 7/45
Step-by-step explanation:
a) 12 are male and studied chemistry
b) There are 14 male Biologists and 90 in total which is 14/90 which = 7/45
(I'm not 100% sure but if I'm wrong I'm very sorry)
I read the question wrong 3 times I'm blind
What is the value of d/dx sin (2x-Pi/3) at x= Pi
Answer:
1/2 at x=pi
Step-by-step explanation:
d/dx sin(x) = cos(x)
Therefore:
d/dx sin(2pi-pi/3) = cos(5pi/3) = 1/2
2. Which of the following makes the equation
true? B/4=16
Answer:
64
Step-by-step explanation:
64/4=16
Plz need helppp Quick !!!!!!!
Step-by-step explanation:
A. 1 cup of blue rate for 3/5 cup of red paint
B. 1 cup of flour for 2.5 muffins
C. r = d/t = 420 miles/7 hours = 60 miles per hour.
D. 48/3 = $16 for every hour
E. $15/6 = $2.5 for every hot dog
F(x)=3x and g(x)=x+2 find fog(x),gof(x),fog(2),gof(2)
Answer:
Step-by-step explanation:
fog(x)=f(g(x)) =f(x+2) =3⋅(x+2) =3x+6
gof(x)=g(f(x))=g(3x) =3x+2
gof(2)=3⋅2+2 =6+2 =8
fog(2)=3⋅(2+2) =3*2+6=12
The jacket at the department store originally cost $199. It was selling so well that the store decided to increase the price by 25 percent. What was the new cost of the jacket?
Answer:
$248.75
Step-by-step explanation:
25% more of 199 is 248.75
Subtract -21 from 30
Answer:
-9
Step-by-step explanation:
yu subtract 21 from 30 and and just add a negative before the answer
There are 20 more dogs at the pet store than cats. If there are 7 cats, which equation can be used to find the number of dogs, d, at the pet store?
Answer:
if d=dogs and c=cats then c+20=d
Step-by-step explanation:
Answer:
20 + 7 = 27 dogs
Step-by-step explanation:
If there are 20 more dogs than there are cats, you add the number of cats with how many more dogs. 20 + 7 = 27 dogs.
What is the magnitude of -10 + 24i?
this is for a unit over complex numbers on a p e x
Answer:
The magnitude of the number is of 26.
Step-by-step explanation:
Magnitude of a complex number:
A complex number has the following format: a + bi
In which a is the real coefficient and b is the imaginary coefficient.
The magnitude of the number is:
[tex]\sqrt{a^2+b^2}[/tex]
What is the magnitude of -10 + 24i?
For this number, a = -10, b = 24. So
[tex]\sqrt{a^2+b^2} = \sqrt{(-10)^2+24^2} = \sqrt{676} = 26[/tex]
The magnitude of the number is of 26.
A rectangular region is removed from another rectangular region to create the shaded regions shown below. Find the combined area of the
shaded regions
Syd
yd
16 yd
Answer:
50 yards
Step-by-step explanation:
Answer: 96yd²
Step-by-step explanation:
Multiply:
Larger Rectangle: 16 * 8 = 128ft²
Smaller Rectangle: 8 * 4 = 32ft²
Subtract both your solutions:
128 - 32 = 96ft²
Final Answer:
96ft²
Hope this helped! :)
Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer and Step-by-step explanation:
First step we can do is find the slope of the line.
To find the slope, use the following equation:
[tex]\frac{y_2 - y_1}{x_2 - x_1}[/tex]
(2, 0) will be the ([tex]x_{2}, y_{2}[/tex]) set, and (0, 4) will be the ([tex]x_2, x_1[/tex]) set.
[tex]\frac{0 - 4}{2 - 0} = \frac{-4}{2} = -2[/tex]
The slope of the line is -2.
Don't worry about the inequality part yet, make it look like an equation because you'll be more familiar with it.
y = -2x + b (b is the y-intercept)
The y-intercept is the point where the lines intersects with the y-axis. this y-value is 4.
y = -2x + 4 -- That is the equation of the line.
We see that all values make the inequality true is on the left side of this line. This means that the sign to replace the = sign with is >=, in which the values of y are less than what is plugged in and evaluated for x.
y <= -2x + 4
That is the inequality equation.
(You can also use Desmos. com to help with the plotting of the inequality equations and graphs)
#teamtrees #PAW (Plant And Water)
Write 3 more equations using the same numbers that express the same relationship.
Equation: 3 + 2 = 5
Answer:
2+3 = 5
5-2 = 3
5-3 = 2
Step-by-step explanation:
Pre-cal! Please help!
Represent the product of A and B geometrically given that point A is located at (2,45°) and B is located at (4, 45°). Give
the coordinate of AxB in polar form.
Answer:
(8,90°)
Step-by-step explanation:
To get this answer, you multiply the r values together to get 2*4 = 8. At the same time, you add the theta angles to get 45° + 45° = 90°
The general rule is that if A = (r,theta) and B = (s,phi) then
A*B = (r*s,theta+phi)
where the point (s,phi) is a polar form point.
Which linear inequality is represented by the graph?
Oys 2x + 4
Oyszx+ 3
O yz {x + 3
O y 2x + 3
The linear inequality that represents the graph is: [tex]y \le \frac 23x + \frac 15[/tex]
The line of the inequality passes through the points:
(0,0.2) and (3,2.2)
So, the slope of the line is:
[tex]m = \frac{2.2 - 0.2}{3 - 0}[/tex]
[tex]m = \frac{2}{3 }[/tex]
The equation is then calculated as:
[tex]y =mx + c[/tex]
Where c represents the value of y, when x = 0.
So, we have:
[tex]y =\frac 23x + 0.2[/tex]
Rewrite as:
[tex]y =\frac 23x + \frac 15[/tex]
The down region is shaded, and the line is a closed line.
So, the inequality is:
[tex]y \le \frac 23x + \frac 15[/tex]
Read more about inequalities at:
https://brainly.com/question/9774970
Alisa has $6.27. She has to give that value to a florist using only coins. How would she do it, using the least number of coins.
each day on the way to work emily stops to get a large latte and a scone the latte cost $4.85 the scone cost $2.25 she works 20 days a month
How much she spend each month?
(PLEASE HELP! ITS URGENT) Move all expressions whose product is negative to the box.
Answer:
The 2nd and the 4thᕕ( ᐛ )ᕗ
Answer:
the second [2ǹd] & the fourth [4th]
2. The rectangles below are similar. Solve for the AREA of the larger rectangle. *
PLEASE HALP MEEEEEEE
what is 50% of 4 ?
Answer:
equal to 2
Step-by-step explanation:
50% is the same as 1/2 of 4
(NO LINKS)
Please help this assignment is over due and I don't get it thx ;)
Answer:
45
Step-by-step explanation:
9 x 5 = 45
45 / 9 = 5
45 is the answer!
NO LINKS OR YOU WILL BE REPORTED
help me pls
Answer:
i think b
Step-by-step explanation:
Solve: 3,125 = 5–10 + 3x x =
Answer:
5
Step-by-step explanation:
Answer:
The answers is 3 for Evaluate using the given value
The answers is 3,125=-5+3x for simplify the Matrix
Step-by-step explanation:
Please tell me if those ways are correct
And how did you want me to solve it
4) Jenna works at Chirping Chicken. On Superbowl Sunday, she fries 3,708 wings and boxes them for
delivery so that each box has 20 wings inside. What is the maximum number of full boxes she can
pack?
A 180
B 185
C 186
D 189
Answer:
B = 185
Step-by-step explanation:
You must divide 3,708 by 20.
3,708 divided by 20 = 185.4 = 185.
Answer:
B
Step-by-step explanation:
3,708/20=185.4
You obviously can't cut of the fries and wings- so u can't keep the .4 so the answer is 185
22x^5+20x greatest common factor
Answer:
2x
Step-by-step explanation:
2x(11x^4 + 10)
Could I get help/an explanation on this problem? Thanks
Answer:
HEY BABE
Step-by-step explanation:
Inscribed Angles & Arcs and Sectors
(Giving brainliest to correct answer)
Answer:
0.4 pi
Step-by-step explanation:
find the circumference by doing 2 pi r
then you multiply that by a slice of the circle which is 72 degrees divided by 360.
Which one is correct?
What is 3,000,000 + 800,000 + 20,000 + 6,000 + 600 + 70 + 9 in standard form?
Answer:
3,826,679
Step-by-step explanation:
Answer:3,826,679
Step-by-step explanation:
Howard needs to buy pens and pencils for work. Pens cost $0.40 each and pencils cost 50.25 each. He needs to buy at least 340
pens and pencils combined, while spending no more than $100. If x represents the number of pens and y represents the number
pencils, which TWO statements are correct?
A)
x = 40 and y - 320 is a viable solution
B)
X = 100 and y = 260 is a viable solution
C)
x + y = 340 and 0.40x +0.25y 2 100 models the situation
D
-* + y 2 340 and 0.40x + 0.25y = 100 models the situation
E
x + y2 340 and 0.40% +0.25y 2 100 models the situation
Answer: what is the answer
Step-by-step explanation:
According to a report in USA Today (February 1, 2012), more and more parents are helping their young adult children get homes. Suppose 8 persons in a random sample of 40 young adults who recently purchased a home in Kentucky got help from their parents. You have been asked to construct a 95% confidence interval for the population proportion of all young adults in Kentucky who got help from their parents. You have been asked to construct a 95% confidence interval for the population proportion of all young adults in Kentucky who got help from their parents. What is the margin of error for a 95% confidence interval for the population proportion?
a.1.645(0.0040)
b.1.645(0.0632)
c.1.96(0.0040)
d.1.96(0.0632)
Answer:
d.1.96(0.0632)
Step-by-step explanation:
The margin of error for a 95% confidence interval for the population proportion calculated as below:
Given that x = 8
n = Size of the sample = 40 (Large sample)
Sample population: P=x/n = 8/40 = 0.2; q = 1-p = 0.8
Standard error = [tex]\sqrt{pq/n}[/tex] = [tex]\sqrt{0.2(0.8)}/40[/tex] = 0.0682
95% of confidence Z∝ = 1.96
Margin of Error = Z∝ .[tex]\sqrt{pq/n}[/tex]
Margin of Error = 1.96(0.0682)
So, therefore, option d is correct.