Answer:
r=6
Step-by-step explanation:
(r-(-3))/(2-(-1)) = (r+3)/3
r+3/3 = 3/1
cross-multiply:
r+3 = 9
r = 6
Check:
6-(-3)/2-(-1) should equal 3
9/3 = 3
checks out correctly
Answer:
r = 6
Step-by-step explanation:
Formula
m = (y2 - y1)/(x2 - x1)
Givens
x1 = - 1
x2 = 2
y1 = - 3
y2 = r
m = 3
Solution
3 = (r - -3) / (2 - - 1) Combine
3 = (r + 3) / 3 Multiply both sides by 3
9 = r + 3 Subtract 3 from both sides
6 = r + 3 - 3
6 = r
Helppp PLEASEEEEEEEEEE
Answer:
4321 people
Step-by-step explanation:
Since the population is modeled by exponential growth, we would need to determine the approximate growth factor by using the formula [tex]y=ab^x[/tex] where [tex]a[/tex] is the initial population, [tex]b[/tex] is the growth factor, and [tex]x[/tex] will be the number of years after 1994:
[tex]y=ab^x\\\\1519=1256b^2\\\\\frac{1519}{1256}=b^2\\\\b\approx1.0997[/tex]
Therefore, since 13 years after 1994 is 2007, then we have:
[tex]y=1256(1.0997)^x\\\\y=1256(1.0997)^{13}\\\\y\approx4321[/tex]
Therefore, the population of Amuel in 2007 was approximately 4321 people.
Jessie rode her bike up a 4 km hill then back down. It took her 3 hour
to make the round trip. What was her average speed?
Check your units. Distance should be in kilometer and time should be in hour.
Answer:
8 km per hour or 8 km/hr
Step-by-step explanation:
If riding 4 km took her 1/2 an hour then you multiply by 2 to get 8 km for 1 hr. 8 km for 1 hour means she was going 8 km per hour.
Which expressions below equal a rational number? Choose all that apply.
Answer:
the first one : 4/5 + 3/8
the third one : 7×sqrt(5) - sqrt(245)
the 4th one : 4×sqrt(7) × 2×sqrt(7)
Step-by-step explanation:
per definition, the set of rational numbers is the set of all integers and fractions.
the first answer is simply a prime example of fraction operation, and the result is therefore a fraction again.
the 3rd answer delivers 0, because
sqrt(245) = sqrt(49×5) = 7×sqrt(5). this is a rare occasion where an operation with a non-rational number still delivers a rational result.
the 4th answer squares the square root of 7 creating 7, which creates overall an integer and therefore rational result.
the other options contain at least one number that is not rational and will not be converted or neutralized by the operation.
and the sum and product of a rational with a non-rational number is always non-rational.
sqrt(100) + sqrt(5) = 10 + sqrt(5).
as 5 is not a square number, its square root contains an infinite number of digits after the decimal point without any repeating pattern. this is a real number, not a rational number.
pi is per definition not rational (same thing as for sqrt(5) : infinite number of digits after the decimal point without any repeating pattern).
what is the simplified form of the following expression 2x^2y 3x^2 4y 3x^2y 2y
Answer:
[tex]8x^6y^9[/tex]
Step-by-step explanation:
Multiply the numbers
[tex]2x^2y^3x^2[/tex] · [tex]4y^3x^2y^2y[/tex]
[tex]8x^2y^3x^2y^3x^2x^2y[/tex]
Combine exponents
[tex]8x^2y^3x^2y^3x^2x^2y[/tex]
[tex]8x^2y^9x^2x^2[/tex]
Combine exponents
[tex]8x^2y^9x^2x^2[/tex]
[tex]8x^6y^9[/tex]
Solution
[tex]8x^6y^9[/tex]
what is the fraction 1/4 , 2/5 , 1/5 , 2/4
Answer:
1/4
Step-by-step explanation:
count the gaps in between
Answer:
1/5
Step-by-step explanation:
you have five available spaces
0/5, 1/5, 2/5, 3/5, 4/5, and 5/5
the point is at 1/5
Triangles are used for strength in roof trusses. In the diagram, UV and VW are midsegments of RST. Find UV and RS. RWT= 90in. VW= 57in.
Answer:
I believe UV=45 and RS=114
THIS COULD BE WRONG, IF IT IS I'M SORRY, THIS IS THE ANSWER I GOTPlease help me with this quick!
the picture is above
I’ll make you brainly
Answer:
We can use the ratio of proportional sides to help us solve the question.
m 4
---- = -----
3 2
Using cross products
2*m = 4*3
2m = 12
Divide each side by 2
2m/2 = 12/2
m = 6
The value of m that makes the triangles similar is 6
Step-by-step explanation:
also if you happy with this answer please consider brainliest
Which expression gives the area of the triangle shown below?
Answer:
1/2zw
Step-by-step explanation:
The triangle formula is 1/2 x base x hight.
I'm this triangle the z is representing the base and the w is representing the hight.
helppp is due tomorrow
Answer:for .4 it is c=6
Step-by-step explanation:
first you do 6+3=9 then 3+5=8 then add 9+8=17
how do you find a slope of a line?
Answer:
Using two of the points on the line, you can find the slope of the line by finding the rise and the run. The vertical change between two points is called the rise, and the horizontal change is called the run. The slope equals the rise divided by the run: Slope =riserun Slope = rise run .
Need the answer asap plzz help
Answer:
20
Step-by-step explanation:
LOL can someone help me with this dum.b ixl!!!! I will mark brainliest who was first, and if it was right...... THX
Answer:
1/2 or 2/4
Step-by-step explanation:
The total amount of pieces is 4. The dot is at the second piece. Therefore, it is at 2/4. We can simplify 2/4 to 1/2 by dividing both the numerator and the denominator by 2.
I hope this helped and please mark me as brainliest!
Elsa bought three books at a bookstore. Here are their prices (in dollars).
8.73, 13.09, 19
What is the total amount Elsa pald at the bookstore?
sl
Х
5
?
Answer:
$ 40.82
Step-by-step explanation:
the sum of the three numbers is 40.82.
10 ( 4a + 9 ) -8 ( 2 + a ) = ?
10x4a=40a
10x9=90
-8x2=-16
-8xa=-8a
40a-8=32a
90-16=74
32a+74
HELP PLEASE
Rewrite the following polynomial in standard form.
Answer:
-2x^3 + 1/7x - 1
Step-by-step explanation:
Answer:
-2x*3+x/7-1
Step-by-step explanation:
In standard form for polynomials, you would put the monomial with the highest degree in the front first, then the second most, and so on. -2x*3 has a cubic degree, so it will come first. x/7 has a constant degree, so it will come next. Finally, -1 has no degree, so it will come last.
Three dumpsters are delivering sand to a golf course
to refill the sand traps.
Truck A is carrying 3,715 lbs. of sand. Truck B is
hauling 2,695 lbs. Truck C has 3,590 lbs.
How many tons of sand are being delivered to the
golf course?
Answer:
10,000 tons of sand is being delivered.
Step-by-step explanation:
Answer:
4.290984
Step-by-step explanation:
3175 + 2695 + 3590 = 9460lbs
9460lbs = 4.290984tonnes
a
A container has 14 yellow chips, 10 blue chips and 12 red chips in it.
One chip is randomly chosen from the container, then a second chip is
randomly chosen after replacing the first chip. What is the probability
that both chips are red?
Answer:
1/9 is the probability that its red chip.
Step-by-step explanation:
total chips = 14 + 10 + 12 = 36 chips
first probability = 12/36 = 1/3
second probability = 12/36 = 1/3...........total remains same, 36 as its replaced
therefore probability = 1/3 * 1/3 = 1/9
HELP ME PLS I WILL GIVE BRANINEST
Answer:
Angle A = 180
Step-by-step explanation:
180=7x+40
Subtract 40 from both sides
140 = 7x
Divide 7 from both sides
20=x
Substitue 20 in for x
7(20)+40
140+40 = 180
Answer:
x = 18
< A = 166
Step-by-step explanation:
Angles A and B are corresponding angles, therefore they have the same measure. Using this information, you get the following equation:
7x + 40 = 3x + 112
-3x - 3x
4x + 40 = 112
- 40 - 40
4x = 72
Divide both sides by 4.
x = 18
Solve for A:
7(18) + 40 = 166
Hope it helps!
Answer this please! Thanks
Answer:
no solution
Step-by-step explanation:
The solution to a system of equations is at the point of intersection of the 2 lines.
The lines are parallel and never intersect.
Tgus the system has no solution
Lea walked 12miles in 13 hours. How long will it take Lea to walk214 miles?.
Answer:
221
Step-by-step explanation:
divide 214 by 12 then multiply 13 by that questions answer.
help me plz answer plz answer
HELP ME PLEASE!!!!!
Find the inverse function in slope-intercept form (mx+b):
as you should already know, to get the inverse of any relation we start off by doing a quick switcheroo on the variables and then solve for "y".
[tex]\stackrel{f(x)}{y}=\cfrac{3}{4}x+9\implies \stackrel{quick~switcheroo}{x=\cfrac{3}{4}y+9}\implies x-9=\cfrac{3y}{4}\implies 4x-36=3y \\\\\\ \cfrac{4x-36}{3}=y\implies \cfrac{4}{3}x-12=\stackrel{f^{-1}(x)}{y}\qquad \impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}[/tex]
help me please this is due in 15 mins
Answer: 6^4+10^3−4^2−15+5
6x^4 + 14x^3 + 4x^2 -15x - 5
Step-by-step explanation:
(3x-1)(2x^3 + 4x^2 - 5)
we simply distribute and collect like terms
6x^4 + 14x^3 + 4x^2 -15x - 5
There are 20 students in our class who prefer chocolate ice cream. There are 6 students in our class who prefer vanilla ice cream. Select all of the ratios that represent the number of students who prefer chocolate ice cream to the number of students who prefer vanilla ice cream.
Answer:
20 TO 6, 20:6 OR 20/6
Step-by-step explanation:
All of the ratios that represent the number of students who prefer chocolate ice cream to the number of students who prefer vanilla ice cream, are 20 to 6, 20:6 or 20/6.
What is ratio?
A ratio displays the multiplicity of two numbers. For instance, if a dish of fruit contains eight oranges and six lemons, the ratio of oranges to lemons is eight to six. Similarly, the ratio of oranges to the overall amount of fruit is 8:14, while the ratio of lemons to oranges is 6:8.
Given: There are 20 students in our class who prefer chocolate ice cream.
There are 6 students in our class who prefer vanilla ice cream.
Since the ratio can be expresses as, a/b, a:b or a to b.
So,
the ratio can be express as, 20 to 6, 20:6 or 20/6.
Therefore, all of the ratios that represent the number of students who prefer chocolate ice cream to the number of students who prefer vanilla ice cream, are 20 to 6, 20:6 or 20/6.
To know more about the ratio, click on the link
https://brainly.com/question/2328454
#SPJ2
Help please !! I’m am struggling with this lol
Answer:
x ≈ 3.9
Step-by-step explanation:
Call the segment shared by the two triangle "y". The Pythagorean theorem tells you ...
sum of squares of sides = square of hypotenuse
y² +6² = 10²
x² +7² = y²
Substituting for y² using the second equation, we get ...
x² +7² +6² = 10²
x² = 10² -7² -6² = 100 -49 -36 = 15
Taking the square root, we find ...
x = √15 ≈ 3.9
a warehouse has 1,203 shirts to send 3 stores, If each store gets the same number of shirts , how many shirts will go to each store
Answer:
401 shirts
Step-by-step explanation:
1203 divided by 3 equals to 401
2x+3y=53
3x-y=19
find the values of x and y
Answer:
x = 10.
y = 11
Step-by-step explanation:
2x+3y=53
3x-y=19
x = 10; y = 11
An runner ran at 13mph for 13 hours. How far did the runner travel?
Answer:
13x13=169
Step-by-step explanation:
the runner ran 169 miles
Answer: 169 miles per hour.
13mph x 13 hours= 169
This is because:
mph = miles per hour. This person ran 13 miles PER HOUR, and there are 13 hours.
What is the distance between (2,-9) and (-1,4)
Answer:
total distance might be 16
Step-by-step explanation:
|y2-y1/x2-x1|, plug it the numbers, if you got a negative number, its just positive since the equation is set to absolute value
Bridget's classroom started out with a collection of only 6 books, but she plans to purchase an additional 3 books per week. Cole's library started out with 38 books, and he will purchase another 1 book per week. At what week and amount of books will the two libraries be the same?
Answer:
6 and 19 which is bridgets and 114 and 3 which you know is Coles
Answer:
bridget in week 13 will have 117 books and Cole in week 3 will also have 117 books
Step-by-step explanation:
find total books in a week
Bridget =6+3=9
cole= 38+1=39
find lcm
9={3×3}
39={3×13}
lcm={3×3×13}
=117
for Bridget
117÷9 =13 weeks
for cole
117÷39
3 weeks
