Answer:
10x-8x=9+19
2x=28
X=28/2
X=14
14 is the answerr
Answer:
14
Step-by-step explanation:
because u bring the 8x to 10x which would be 2x. and the u bring the 19 to nine, and it would be 28. u take away the 2 and bring it to the 28, and divide it by 2. u would get 14
What is the arc measure of minor arc AB in degrees?
Answer:
[tex] m\widehat{AB} =55 \degree[/tex]
Step-by-step explanation:
[tex] \because m\angle APC=m\angle DPE[/tex]
(Vertical angles)
[tex] \therefore m\widehat {ABC} =m\widehat {DE} [/tex]
(Measure of minor arc is equal to the measure of it's corresponding central angle)
[tex] \therefore m\widehat {AB}+m\widehat {BC} = m\widehat {DE} [/tex]
[tex]\therefore m\widehat{AB} = m\widehat {DE} - m\widehat {BC} \\ \\ m\widehat{AB} =93 \degree - 38 \degree \\ \\ m\widehat{AB} =55 \degree[/tex]
Type SSS, SAS, ASA, SAA, or HL to
justify why the two larger triangles are
congruent.
8 cm
8 cm
100 POINTS PLZ HELP ME
This graph shows a proportional relationship.
What is the constant of proportionality?
Enter your answer as a ratio in simplified form by filling in the boxes.
$$
A graph with a line running through coordinates left parenthesis 0 comma 0 right parenthesis and coordinates left parenthesis 1 over 4 end fraction comma 3 over 8 end fraction right parenthesis.
Answer:
I dont see a graph, but the constant of proportionality the ratio between two directly proportional quantities. two quantities are directly proportional when they increase and decrease at the same rate
Step-by-step explanation:
if you add a graph, ill edit my answer
hope this helps!
Can someone please help with these two questions please?
1. Assume that the radius r of a sphere is expanding at a rate of 60 cm/min. The volume of a sphere is V = 4/3r^3 and its surface area is 4r^2. Determine the rate of change in surface area at t = 2 min, assuming that r = 16 at t = 0.
2. A conical tank has height 3 m and radius 2 m at the top. Water level is rising at a rate of 2.1 m/min when it is 1.8 m from the bottom of the tank. At what rate is water flowing in? (Round your answer to three decimal places.)
Answer:
Step-by-step explanation:
S=4πr²
ds/dt=4π×2r×dr/dt=8πr dr/dt
dr/dt=60 cm/min
ds/dt=8π×60r=480πr
r=16,t=0
at t=2,r=16+32=48 cm
so ds/dt=480π×48=23040 πcm²≈72382.79 cm²
2.
[tex]V=\frac{1}{3} \pi r^2*h\\\frac{r}{h} =\frac{2}{3} \\r=\frac{2}{3} h\\V=\frac{1}{3} \pi( \frac{2}{3} *h)^2h\\V=\frac{4}{27} \pi h^3\\\frac{dV}{dt} =\frac{4}{27}\pi *3h^2\frac{dh}{dt} \\\\when ~h=1.8 ~m,\frac{dh}{dt} =2.1~m/min\\\frac{dV}{dt} =\frac{4}{9}\pi h^2\frac{dh}{dt} =\frac{4}{9} \pi*(1.8)^2*2.1=27.216 \pi \approx 85.502 m^3[/tex]
I need help with before 9
Answer:
There is no 9 on the paper.
Step-by-step explanation:
Answer:
1) p = how much he was paid per lawn
2) 4p = how much he was paid for 4 lawns
3) 4p = 24, then p = $6
4) 45-d = 21, d = $24
Help&EXPLAIN
Don’t use for points or will be reported and I’ll take the points back
Answer:
B = 243°
Step-by-step explanation:
Full revolution = 360°
360 - 117 = 243
Answer:
243 degrees
Step-by-step explanation:
The angle of a full circle = 360 degrees
360 - 117 = 243
Solve by graphing.
x + 3y = -9
5x + 3y = 3
Answer:
Step-by-step explanation:
The solution of the system of linear equations is [tex]x = 3[/tex] and [tex]y = -4[/tex].
In this question, we notice that given system of linear equations consist of two equations and two variables, which means that solution is unique and can be found by graphic means. We proceed to graph each line with a graphing tool and label the point, in which both lines intersect each other.
The outcome from the graphing tool is presented below as attachment. In a nutshell, the solution of the system of linear equations is [tex]x = 3[/tex] and [tex]y = -4[/tex].
We kindly invite you to see this question related to systems of linear equations: https://brainly.com/question/13647755
The carnival is in town for 21 days. How many weeks is the carnival in town?(There are 7 days in 1 week.) Write and equation,and solve.
Answer:
egn= 7x=y
where x= weeks no.
y= days
atq...x= 3
Unit price $5 for 60lb bag
Answer:
12 per one bag
Step-by-step explanation:
60lb bag divided by the amount it costs which is $5.
Which equals $12.
Answer:
$1/12lb
Step-by-step explanation:
Divide 60 by 5.
- Kirk is reading a book and found that after 5 days he had read 180 pages.
rate is Kirk reading the book in (b) If the book is 765 pages long, how many
days will it take him to read the book at
the rate you found in (a)?
Answer:
21.25 days
Step-by-step explanation:
We first need to find the rate that he read the book for the first 5 days:
180 (pages)/5 (days)= 36
So he reads 36 pages a day. Now we need to find how many days it will take him to read the whole book, while reading 36 pages a day.
765 (total pages)/36 (pages he reads in a day) = 21.25
Have a wonderful day, my friend.
If you need 2 liters of soda for every 12 students at the school dance, and you sold 360 student tickets to the dance. About how many liters of soda should you buy so that you have enough for all 360 students at the dance.
Explain the answer please
PLEASE HELP I WILL GIVE BRAINLIEST!!
(the name of the video to help is "Math Antics - Proportions"
Answer:
60 liters
Step-by-step explanation:
360/12=30
30x2=60 liters
Hope this helps! :)
At a height of about 212 meters, One Shell Square is the tallest building in New Orleans. Marlie is creating a scale model of this building, using the scale factor 1:250.
To the nearest tenth of a meter, what will be the height of the scale model?
Enter your answer as a decimal in the box.
given 90 points for answering, thank you!
Answer:
0.8 meters
Step-by-step explanation:
The scale factor is 1:250 (can be rewritten as 1/250 or 1 to 250).
1/250 × 212 = 0.848 Meters
Round to the nearest tenth, the scale model will be 0.8 meters.
OR: SET UP A PROPORTION:
[tex] \frac{250}{1} \times \frac{212}{x} [/tex]
cross-multiply
[tex]250x = 212[/tex]
[tex]x = 0.848[/tex]
Answer:
0.8
Step-by-step explanation:
ye
The graph of y= -x2+3x-2 is shown. The ZERO(S) of the function is/ are?
A. -2
B. -2, 2
C. -2, 1, 2
D. 1, 2
please answer quick brain list on cludded
Answer:
(-3,-4)
Step-by-step explanation:
In a research experiment, the population of a colony of bacteria doubles every hour. The population, f() of the colony atter z hours can be modeled by the function () - 25.2" What values for the domain are reasonable in the given
context
Answer:99
4/2ndjsjhowkllsnlove u
Pls help this is due in 10 minutes
Answer:
y = 52
Step-by-step explanation:
y/4 - 7 = 6 (get the y isolated)
y/4 = 13 (add 7 to both sides)
y = 52 (multiply 4 on both sides)
there are 84 girls in grade 3.the boys are twice the numbers of girls. how many pupils are there in all in grade 3?
Answer:
252
Step-by-step explanation:
Girls = 84
Boys = 84 * 2 = 168
Total = 252
Answer:
Step-by-step explanation:
no of girls in grade 3 = 84
by the question no of boys are twice the number of girls so
no of boys = 2 * 84 = 168
Total no of pupil in grade 3
= 168 + 84
= 252
hope it will help :)
Help I’ll mark you brainly!!
the numbers to the questions are on the top left corner of each bubble, hope this helps!
In a triangle ABC if ∠A= 72° and ∠B= 63° find ∠C
Answer:
Angle C = 45 degrees
Step-by-step explanation:
All interior angles of a triangle add up to 180 degrees.
180-72-63 = angle C
Angle C = 45 degrees
A frame is 4 inches tall and 3 inches wide if it is enlarged to a height of 24 inches then how wide will it be
Please help- Show ur work,, and please answer correctly
I will also give brainliest
Answer:
x = -4.
n = -2.
v = -5.
Step-by-step explanation:
18 = -4x + 2
18 - 2 = -4x
x = 16/-4
x = -4.
6 + 2n = 2
2n = 2 - 6 = -4
n = -2.
5v + 8 = -17
5v = -17 - 8
5v = -25
v = -5.
What is the value of DOB in this figure? Please help me
Answer:
48degrees
Step-by-step explanation:
108+(2n+n)= 180. - ( supplementary angles)
n= 24
DOB=2n= 2*24= 48degrees
What are the zeros of f(x) = x^2 - x- 12? Please explain if you can.
Answer:
4 and -3
Step-by-step explanation:
So our function is f(x) = x² - x -12
We need to find factors such that 0 = x² - x -12
So, it looks something like this 0 = (x - a)(x - b)
We know that the first term is x², which can only be obtained if we multiply x by another x.
Now, we need to find the other terms a and b. We know that a × b = -12
The correct answer would be that a = 4 and b = -3
0 = (x - 4)(x + 3)
We know this because, if we multiply this out, we get x² + 3x -4x -12, which can be simplified to x² -x -12.
Our zeroes are the values of x that this equation 0 = (x - 4)(x + 3) is true. What values of x will make this zero?
4 and -3
I need help the question is solve the equation n+75=155
Answer:
80
Step-by-step explanation:
155-75=80
COMPLETE THE SEQUENCES.
1- 0, 16, 32, 48, 64,_,_,_,
2- 2,9, 11, 18, 20, 27,_,_,_,
SOMEONE PLEASE HELP ME
Answer:
0,16,32,48,64,80,96,112
2,9,11,18,20,27,29,36,38
Step-by-step explanation:
1.Counting by 16
2. Counting by 7 and 2
Can you Help me please!!
Step-by-step explanation:
10 and under= 3
11-15=7
16-20=8
20 and over= 2
Which could be the dimensions of a rectangular prism whose surface area is greater than 140 square feet? Select
three options.
6 feet by 2 feet by 3 feet
6 feet by 5 feet by 4 feet
17 feet by 6 feet by 4 feet
8 feet by 3 feet by 7 feet
8 feet by 4 feet by 3 feet
Answer:
6 feet by 5 feet by 3 feet
17 feet by 6 feet by 4 feet
8 feet by 3 feet by 7 feet
Use the grouping method to factor the polynomial below completely.
3x3 + 6x2 + 5x + 10
A. (3x2 +5)(x+2)
B. (3x2 + 5)(x + 5)
C. (3x2 + 2)(x + 5)
D. (3x2 + 2)(x + 2)
Answer:
its A
Step-by-step explanation:
i did the test
z + y2
for y = 6 and z = 1
Answer:
37
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightStep-by-step explanation:
Step 1: Define
z + y²
y = 6
z = 1
Step 2: Evaluate
Substitute in variables: 1 + 6²Evaluate exponents: 1 + 36Add: 37A.find the price elasticity of demand at the equilibrium points? quantity demand=72-8p and quantity supply=-24 +24p. B.substitutes the equation.
Answer:
p = 3
Step-by-step explanation:
The price elasticity of demand at the equilibrium points occurs when quantity demand equals quantity supply.
So,
72-8p= -24 +24p
Taking like terms together,
72+24 = 24p+8p
96 = 32p
p = 3
Hence, the price elasticity of demand is at p = 3.