Answers
Answer:
3, 50 and 70
Step-by-step explanation:
Using exterior angle property, we have 15x+5+22x+4=120, 37x+9=120. x=3
B=15x+5=50
C=22x+4=70
Related Questions
PLEASE PLEASEEEEEEEEE PLEASEEEE ANSWERRRRR ILL LOVE UUUU!!!
Answers
Step-by-step explanation:
9 x 4=36 is the answer
hope this helps you
have a nice day:)
FOR BRAINLIEST ANSWER ONLY:
2.
3.
4.
6.
Answers
Answer:
2. x = 2 & y = 4
3. x = 4 & y = 2
Step-by-step explanation:
2. x + y = 6
2x + y = 8 (multiply the first equation by -1, so you can eliminate the ys)
- x - y = -6
2x + y = 8 (now add the variables together)
x = 2 (plug in x in one of the equations to find out y)
x + y = 6
(2) + y = 6
-2 -2
y = 4
3. 3x + y = 14
x = 2y (plug in x into the first equation and solve it for y)
3(2y) + y = 14
6y + y = 14
7y = 14
y = 2 (plug in y in one of the equations to find out x)
x = 2y
x = 2(2)
x = 4
4. One number (x) is 2 more (+2) than twice (times 2) as large as another. their sum is 17. Find the numbers.
2x + 2 = 17 (solve for x)
-2 -2
2x = 15
x = 7.5
6. 7 (4x + 1) - (x + 6) (start by distributing 7 into the first parenthesis)
(28x + 7) - (x + 6) (do the same to the other parenthesis by distributing -1)
(28x + 7) (-x - 6) (and now just combine like terms)
28x + 7 - x - 6
28x - x + 7 - 6
27x + 1
i hope this helped! if you have any question, pls let me know!
please help in it is simple question
[tex] {x}^{2} - 4 \\ {x}^{3} - 27[/tex]
Answers
x^3 - 27 = (x-3) x (x^2+ 3x+9)
1)
[tex]\sf {x}^{2} - 4 \\ \sf \: Use \: the \: sum \: product \: method[/tex]
[tex]\sf {x}^{2} - 4 \\ = \sf{x}^{2} + 2x - 2x - 4[/tex]
[tex]\sf \: Now \: take \: the \: common \: factor \: out \\ \sf{x}^{2} + 2x - 2x - 4 \\\sf = x(x + 2) - 2(x + 2)[/tex]
[tex]\sf \: Factorize \: it \\ \sf \: x(x + 2) - 2(x + 2) \\ = \sf(x - 2)(x + 2)[/tex]
Answer ⟶ [tex]\boxed{\bf{(x-2)(x+2)}}[/tex]
_________________________
2)
[tex]\sf {x}^{3} - 27[/tex]
[tex]\sf {x}^{3} \: and \: 27 \: ( {3}^{3} ) \: are \: perfect \: real \: cubes.[/tex]
[tex]\sf \: So \: use \: the \: algebraic \: identity \: \\ \sf {a}^{3} - {b}^{3} = (a - b)( {a}^{2} + ab + {b}^{2} )[/tex]
[tex]\sf \: a = \sqrt[3]{x^{3}} = x \\ \sf \: b = \sqrt[3]{27} = 3[/tex]
[tex] \sf \: {x}^{3} - {3}^{3} \\ \sf= (x - 3)( {x}^{2} + 3x + {3}^{2} ) \\ = \sf \: (x - 3)( {x}^{2} + 3x + 9)[/tex]
Answer ⟶ [tex]\boxed{\bf{(x-3)(x^{2}+3x+9)}}[/tex]
how didi the temperature change if at it decreased by 60% then increased by 80%
Answers
Answer:
It decreased
Step-by-step explanation:
It decreased. Assuming that the temperature is 100 and it is now reduced by 60% then the temperature will be at 40 and if it increased by 80% then the final temp is 72. So it is 48% of the original temp.
Over what interval is the function in this graph constant?
Answers
Answer:
hjjjnnnhjjjjj
Step-by-step explanation:
answer is d
Independent Practice
Which of the following is a recursive formula for a geometric sequence that has first term 7 and common ratio −3negative 3?
A.
an=−3 · 7n−1a subscript n baseline equals negative 3 times left parenthesis 7 right parenthesis superscript n minus 1 baseline
B.
an=7 · (−3)n−1a subscript n baseline equals 7 times left parenthesis negative 3 right parenthesis superscript n minus 1 baseline
C.
a1=−3an=7 · an−1a subscript 1 baseline equals negative 3 line break a subscript n baseline equals 7 times a subscript n minus 1 baseline
D.
a1=7an=−3 · an−1a subscript 1 baseline equals 7 line break a subscript n baseline equals negative 3 times a subscript n minus 1 baseline
Answers
Answer:
D.
a1=7an=−3 · an−1a subscript 1 baseline equals 7 line break a subscript n baseline equals negative 3 times a subscript n minus 1 baseline
Step-by-step explanation:
(–4c2 + 7cd + 8d) + (–3d + 8c2 + 4cd) =
Answers
Answer:
4c² + 11cd + 5d
Step-by-step explanation:
(–4c2 + 7cd + 8d) + (–3d + 8c2 + 4cd)
-4c² + 7cd + 8d - 3d + 8c² + 4cd (opening bracket)
8c²-4c²+7cd + 4cd + 8d - 3d
= 4c² + 11cd + 5d
4c^2 + 5d + 11cd
Step-by-step explanation:
Hey next time please write the numbers that have exponent like this: (Ex: 3x^2)
(-4c^2 + 7cd + 8d) + (-3d + 8c^2 + 4cd)
Combine like terms
-4c^2 + 8c^2 = 4c^2
Combine Like Terms
7cd + 4cd = 11cd
Combine Like Terms
8d - 3d = 5d
Results:
4c^2 + 5d + 11cd
A 90 ° angle is divided into 2 angles.
Find the size of the angles.
5x+10 and 6x-41
Answers
Answer:
So required ans is 5*11+10=65 6x-41=25
Step-by-step explanation:
You can do as,
5x+10+6x-41=90
11x-31=90
11x=31+90
11x=121
x=121/11
x=11
i need the answer for this 2120 = 18x + 320
Answers
Answer:
100
Step-by-step explanation:
we need to swap sides so we take the 320 and put it in the other side but in negative form and that comes out to 1800 and then we divide that by 18
Answer:
x = 100
Step-by-step explanation:
2120 - 320 = 1800
1800 ÷ 18 = 100
he manager of a grocery store has taken a random sample of 100 customers. The average length of time it took the customers in the sample to check out was 3.1 minutes. The population standard deviation is known to be 0.5 minute. We want to test to determine whether or not the mean waiting time of all customers is significantly more than 3 minutes. Refer to Exhibit 9-2. At a .05 level of significance, it can be concluded that the mean of the population is _____. a. significantly less than 3 b. significantly greater than 3.18 c. significantly greater than 3 d. not significantly greater than 3
Answers
Who know how to do this??
Answers
Answer:
Step-by-step explanation:
With some research I found that the medians (QK, RJ, and SI) are broken into 2:1 ratios.
So what this means is that QD is twice as long as DK.
QD = 2DK
QD = 2 * 6.5
QD = 13
help plsssssssssssssssssssss
Answers
Answer:
Question 10:
Answer: b.
[tex]{ \tt{f(x) = 5 {x}^{2} + 9x - 4}} \\ { \tt{g(x) = - {8x}^{2} - 3x - 4 }}[/tex]
(f + g)x, add f(x) and g(x):
[tex]{ \tt{(f + g)x = (5 - 8) {x}^{2} + (9 - 3)x - 4 - 4}} \\ { \tt{(f + g)x = - 3 {x}^{2} + 6x - 8}}[/tex]
Question 11:
Answer: a.
In relation with solution of question 10, same procedure:
[tex]{ \tt{(f - g)x = - 3 {x}^{3} + (1 - 2) {x}^{2} + ( - 3 - 4)x + 9 - ( - 9)}} \\ { \tt{(f - g)x = - 3 {x}^{3} - {x}^{2} - 7x + 18 }}[/tex]
Graph the inverse of the relation shown. Include at least 5 points. (Picture attached)
Answers
Answer:
Step-by-step explanation:
I'm not sure if I am too late to answer this but the trick to this is to reflect the function over the line y = x.
Basically, if you have the point (-2, 3)
you turn in into (2, -3) and you'll be good. (switch the two coordinates and take the negative for both.)
what is 1 3/4 − 3 9/10?
Answers
Answer:
-2 3/20 or -2.15
Step-by-step explanation:
There is an app you can get on your phone called fraction calculator, its an app for mulitplying, dividing, adding, and subtracting any number with a fraction:)
Hoping to be named Salesperson of the Month, Luther called the names from 1/4 of a page of the phone book last week. This week, he called the people listed on another 1/2 of a page of the same phone book. How many pages worth of people did Luther call in all?
Answers
Answer:
3/4
Step-by-step explanation:
Fraction of names called last week = 1/4 of a page
Fraction called this week = 1/2 of a page
The number of pages worth of people called ;
This is an addition problem, as the total will be the sum. Of the fractions called this week and last week
Hence,
Total page worth of names called :
(1/4 + 1/2) = (1 + 2) / 4 = 3/4
The domain of {(x, y): y = 2x2 + 1 ls
Answers
Answer:
y>1
Step-by-step explanation:
Can you answer this math homework? Please!
Answers
Answer:
Put both of those equations into slope-intercept form (in order to be typed into the graphing calculator).
2x + 3y = 16.9
3y = -2x + 16.9
y = (-2/3)x + 16.9/3
5x = y + 7.4
5x - 7.4 = y
So in the graphing calculator,
Y1 = (-2/3)x + 16.9/3
Y2 = 5x - 7.4
Then find the point of intersection and the x value of that would be the solution.
You get the coordinate (2.3, 4.1). So x = 2.3, y = 4.1
Step-by-step explanation:
πr is the formula for the ________ of a circle.
Answers
[tex]\boxed{\large{\bold{\blue{ANSWER~:) }}}}[/tex]
πr is the formula for the __of a circle.
half of the circumference more information:-[tex]\sf{\pi r^{2}=Area }[/tex] [tex]\sf{2\pi r=circumference }[/tex][tex]\sf{2r=diameter }[/tex]Consider two parabolas: One has equation 1 ( 4)( 4) 2 y x x =−+ . The other has the same xintercepts, but goes through the point (2,−12) How far apart are the vertices of the two parabolas
Answers
Answer:
Following are the responses to the given question:
Step-by-step explanation:
[tex]\to y=(\frac{1}{2})(x-4)(x+4)\\\\\to y=(\frac{1}{2}) (x^2-16)\\\\\to y=(\frac{1}{2})(x-0)^2-8\\\\vertex \to (0,-8)[/tex]
The general x-intercept parabola equation [tex]y=k(x-4)(x+4)[/tex]
Parabola crosses the dot (2,-12)
[tex]\to k(2-4)(2+4)=-12\\\\\to k(-2)(6)=-12\\\\\to -12k=-12\\\\\to k=\frac{-12}{-12}\\\\\to k=1[/tex]
The parabolic equation which crosses the position [tex](2,-12)[/tex] is[tex]y=(x-4)(x+4)[/tex]
[tex]\to y=(x-4)(x+4)\\\\\to y=x^2-16\\\\\to y=(x-0)^2-16\\\\vertex \to (0,-16)[/tex]
The distance among the vertices of the two parabolas:
[tex]= \sqrt{(0 - 0)^2+(-8-(-16))^2}\\\\ = \sqrt{0+(-8+16))^2}\\\\ =\sqrt{0+(8)^2}\\\\=\sqrt{(8)^2}\\\\= 8\\\\[/tex]
does anyone know this?
Answers
Answer:
The volume is approximately 50 m^3
Step-by-step explanation:
The volume of a cylinder is given by
V = pi r^2 h where r is the radius and h is the height
The radius is 1/2 of the diameter r = 8/2 = 4
V = pi ( 4)^2 (1)
V = 16 pi
Letting pi be approximated by 3.14
V = 3.14 * 16
V = 50.24
The volume is approximately 50 m^3
Can someone help me with this math homework please!
Answers
Answer:
10
Step-by-step explanation:
f ( 1 ) = 18
First term ( a ) = 18
f ( n + 1 ) = f ( n ) - 2
When, n = 1
f ( 1 + 1 ) = f ( 1 ) - 2
f ( 2 ) = 18 - 2
f ( 2 ) = 16
f ( 2 ) - f ( 1 )
= 16 - 18
= - 2
Common difference ( d ) = - 2
f ( 5 )
= a + 4d
= 18 + 4 ( - 2 )
= 18 - 8
= 10
The graph of $y=ax^2+bx+c$ passes through points $(0,5)$, $(1,10)$, and $(2,19)$. Find $a+b+c$.
Answers
Answer:
[tex]a+b+c=10[/tex]
Step-by-step explanation:
We are given that the graph of the equation:
[tex]y=ax^2+bx+c[/tex]
Passes through the three points (0, 5), (1, 10), and (2, 19).
And we want to find the value of (a + b + c).
First, since the graph passes through (0, 5), its y-intercept or c is 5. Hence:
[tex]y=ax^2+bx+5[/tex]
Next, since the graph passes through (1, 10), when x = 1, y = 10. Substitute:
[tex](10)=a(1)^2+b(1)+5[/tex]
Simplify:
[tex]5=a+b[/tex]
The point (2, 19) tells us that when x = 2, y = 19. Substitute:
[tex](19)=a(2)^2+b(2)+5[/tex]
Simplify:
[tex]14=4a+2b[/tex]
This yields a system of equations:
[tex]\begin{cases} 5 = a + b \\ 14 = 4a + 2b\end{cases}[/tex]
Solve the system. We can do so using elimination (or any other method you prefer). Multiply the first equation by negative two:
[tex]-10=-2a-2b[/tex]
Add the two equations together:
[tex](-10)+(14)=(-2a+4a)+(-2b+2b)[/tex]
Combine like terms:
[tex]4 = 2a[/tex]
Hence:
[tex]a=2[/tex]
Using the first equation:
[tex]5=(2)+b\Rightarrow b=3[/tex]
Therefore, our equation is:
[tex]y=2x^2+3x+5[/tex]
Thus, the value of (a + b + c) will be:
[tex]a+b+c = (2) + (3) + (5) = 10[/tex]
Because of a manufacturing error, three cans of regular soda were accidentally filled with diet soda and placed into a 12-pack. Suppose that two cans are randomly selected from the 12-pack. (a) Determine the probability that both contain diet soda. (b) Determine the probability that both contain regular soda. Would this be unusual
Answers
Answer:
1 /22
6/11
Step-by-step explanation:
Total number of soda = 12
Number of diet soda in pack = 3
Number of regular soda = 12 - 3 = 9
Suppose selection is done without replacement ;
Recall : probability = required outcome / Total possible outcomes
P(selecting diet soda on 1st pick) = number of diet soda / total Number of soda in pack = 3 / 12
Diet soda left = 3 - 1 = 2
Total sodas left in pack = 12 - 1 = 11
P(selecting diet soda on 2nd pick) = 2 /11
Probability(diet soda on both picks) =
3/12 * 2/11 = 6 / 132 = 1 / 22
B.)
P(selecting regular soda on 1st pick) = number of regular / total Number of soda in pack = 9 / 12
Diet soda left = 9 - 1 = 8
Total sodas left in pack = 12 - 1 = 11
P(selecting regular soda on 2nd pick) = 8 /11
Probability(regular soda on both picks) =
9/12 * 8/11 = 72 / 132 = 12 / 22 = 6/11
5894 divided by 14 step by step
(Please help. I just wanna know if I’m doing this right)
Answers
Answer:
421
Step-by-step explanation:
5894 divided by 14 in decimal = 421 • 5894 divided by 14 in fraction = 5894/14• 5894 divided by 14 in percentage= 42100%
YOUR WELCOME :)))
Bruce drove 25 km and his car used 4 L of gas. How many km can Bruce drive with 30 L of gas? Round your answer to the nearest km.
Answers
Answer:
188km
Hi there!!
I hope this answer helps.
Step-by-step explanation:
You can solve this with simple cross multiplication. (proportion)
Step-by-step explanation:
Solve the system by substitution
y= 5x− 22
y= 4x− 17
(show your work pls)
Answers
Answer:
i think 5 is the answer not sure check with other helpers or brainer
Step-by-step explanation:
Express (13/15 - 7/10) as a percentage.
Answers
I NEED HELP PLEASE i don’t understand how to do it!!
Answers
Answer:
1 Cups (US) = 0.24992635042 Quarts
either divide or multiply by 0.24992635042
52* 0.24992635042 = 13
13 / 0.24992635042 = 52
Step-by-step explanation:
Bodhi has a collection of 175 dimes and nickels. The collection is worth $13.30. Which equation can be used to find n, the number of nickels in the collection?
Answers
Answer:
N + D = 175
.05N + .10D = $13.30
Step-by-step explanation:
You need a system of equations to get the correct answer that applies to both constraints.
Answer:
3
Step-by-step explanation:
A parallelogram is cut out of a 12 inch by 8 inch sheet of paper there are four right triangles remnats two have the dimensions 2 inches by 9 inches and the other two have the dimensions 3 inches by 6 inches
Answers
Answer:
96 in²
36 in²
60 in²
6.51 in
Step-by-step explanation:
Given that :
Dimension of paper = 12 in by 8 in
Dimension of right triangles :
2 in by 9 in ; 3 in by 6 in
Area of sheet of paper = 12 in * 8 in = 96 in²
Area of triangle = 1/2 base * height
Therefore, area of remnant right triangle :
2 * 1/2 * 2 * 9 = 18 in²
2 * 1/2 * 3 * 6 = 18 in²
Combined area of triangle left = 18in + 18in = 36 in²
Area of parallelogram = Area of sheet - Area of triangles left
Area of parallelogram = 96in² - 36in² = 60 in²
Base, b of parallelogram = 9.22 in
Area of parallelogram = base * altitude,h
60in² = 9.22h
h = 60 / 9.22 = 6.51 in
