Answer:
10+2+4x
Step-by-step explanation:
its very simple but still right because 10 and 2 is 12 and well 12+4x is the thing you want to have the same as
2x + 10 =28
What is the solution to this equation?
find the area of each shaded sector. Round to the nearest hundredths place. Use 3.14 for pi
Answer:
8.48cm²
Step-by-step explanation:
area of a sector = [tex]\frac{0\pi r^2\\\\}{360}[/tex]
where 0 = angle measure of sector
and r = radius
we are given the angle measure ( 23° ) and the radius ( 6.5 cm )
so all we have to do is plug in the values into the formula
(Note that the question asks us to use 3.14 for pi)
[tex]A=\frac{23*3.14* 6.5^2\\\\}{360}\\6.5^2 = 45.25\\23*3.14 =72.22\\72.22*45.25 = 3051.295\\\frac{3051.295}{360} =8.47581944[/tex]
so the area of the sector = 8.47581944 cm^2
finally we want to round to the nearest hundredth and we get that the answer is 8.48cm²
You invite your best friend Sheila out for a picnic on Thursday. Sheila tells you "If it rains, there is a 20% probability
that I will come, but if it's sunny, there is an 80% probability that I will come." You check the weather and see that
there is a 40% chance of rain for that day. What is the overall probability that Sheila will attend your picnic? Explain
how you found your answer.
Answer: 56%
Probably that it will rain and she goes + probably that it will be sunny and she goes
= 0.4 * 0.2 + 0.6*0.8
= 0.08 + 0.48
= 0.56
56% chance
help out please !
Select all of the quadratic expressions in vertex form.
A (2+4)^2– 3
B (- 5)^2+ 2
C x^2+ 2x + 5
D x (x+2)
E (2+4)^2
Answer:
A C E
Step-by-step explanation:
is 8x+2x equivalent to 8+2x?
Answer:
As long as I know if it's not the same then its not equal, because if you solve it they will give you different answers.
A model train is inches long. Each car in this train is inches in length. How many cars are in the train?
Answer:
5
Step-by-step explanation:
The figure shown is made up of a triangle and a square. The perimeter of the figure is 56 inches. Complete
the description to find the area of the figure.
10 in.
8 in.
10 in.
The total length of three sides of the square is in., so the side length of the square is
in. The area of the triangle is in?, and the area of the square is in?, so the total area is
Image of figure is missing so i have attached it.
Answer:
The total length of three sides of the square = 36 in
Side length of square = 12 in
A_triangle = 48 in²
Area of square = 144 in²
Total area of figure = 192 in²
Step-by-step explanation:
Total perimeter = 56 inches
Let the side of the square be s.
Thus, perimeter of the 3 sides of the square = 3s
Therefore, adding all the external sides of the figure, we have;
3s + 10 + 10 = 56
3s + 20 = 56
3s = 56 - 20
3s = 36
s = 36/3
s = 12
Area of triangle is given by the formula;
A_triangle = ½bh
Where;
b is base
h is height
Thus;
A_triangle = ½ × 12 × 8
A_triangle = 48 in²
Area of square = 12 × 12 = 144 in²
Total area of figure = 144 + 48 = 192 in²
8x - 3y = -9 what is the slope-intercept form?
Answer:
y=(8/3)x+3
Step-by-step explanation:
8x-3y=-9
-3y=-8x-9
y=(8/3)x+3
Answer:
x = 3
y = 11
Step-by-step explanation:
8x - 3y = -9
8(3) - 3(11) = -9
24 - 33 = -9
What is the best definition for “sample” as used in statistics? *
Mark only one oval.
the entire population of the group
a part of the population that represents the entire population
a measure of how much the values within a population vary
Answer:
a part of the population that represents the entire population
Step-by-step explanation:
Answer:
a part of the population that represents the entire population
Step-by-step explanation:
A sample simply refers to a smaller group of observation usually drawn from a larger group or a collection of the total possible observation that fits a particular or specific characteristic(population). This smaller group or subset of observation is usually chosen to be representative of the larger group of population. Representative Samples are usually obtained by drawing at random from the population and are very important where using the entire population for a study seems impossible or very expensive or intensive.
Mark ME AS BRAINLIEST
can someone check my answer? i got 600.
Answer:
Volume = 120 cubic cm
Step-by-step explanation:
We would apply the formula for determining the volume of a square bases pyramid which is expressed as
Volume = 1/3 x base area x height
From the diagram,
length of square base = 6 cm
The base area = 6^2 = 36
height = 10
Thus,
Volume = 1/3 x 3/6 x 10
Volume = 120 cubic cm
I hope this help you! :)
After 2014 the sales of new cell phones without cameras began declining. The number of people y (in thousands) who bought a cell phone without a camera can be estimated by the equation y=-30x+240, where x is the number of years after 2014
Answer:
60,000 people
Step-by-step explanation:
Given the number of people y (in thousands) who bought a cell phone without a camera can be estimated by the equation y=-30x+240,
x is the number of years after 2014
We can find the number of people that bought the cell phone in 2020. In year 2020, that will be after 6years
Substitute x = 6 into the expression
y=-30x+240
y=-30(6)+240,=
y = -180 + 240
y = 60
Since y is in thousands, hence the the number of people that have bought the cell phone by 2020 is 60,000 people
Shawn earns $250 per week grooming animals Write an algebraic expression to represent the amount of money that Shawn earns
Answer [tex]m=250w[/tex]
Step-by-step explanation:
To write an engebraic expression, you should first start off by defining the variables.
Money earned = m
Weeks = w
Next, you have to define the relationship.
Shawn earns $250 per week, so in 2 weeks, he will earn 500, 3 weeks, 750, and so on. I did this by mulitplying, so amount of weeks times the amount of money earned would equal the total money he earned over "w" amount of weeks.
To create the expression, you just have to put the numbers and variables together.
m (money earned over "w" weeks) = 250 (money per week) w (number of weeks).
m=250w
9
Find mZWVT
T
35x-2
U
93 °
W
V
7x + 5
mZWVT =
Answer:
40
Step-by-step explanation:
[tex] \frac{35x - 2 - 93}{2} = 7x + 5[/tex]
[tex] \frac{35x - 95}{2 } = 7x + 5[/tex]
[tex]17.5x - 47.5 = 7x + 5[/tex]
[tex]17.5x = 7x + 52.5[/tex]
[tex]10.5x = 52.5[/tex]
[tex]x = 5[/tex]
Plug 5 in for 7x+5.
[tex]7(5) + 5 = 40[/tex]
Choose the equation where b= 6 11-b=6 b+4=9 8xb=48 63/3=9
What number makes the equation true? 35 + = 42
Answer:
7
Step-by-step explanation:
42 - 35 = 7
I have alot of questions and I need help with a practice quiz
ok imma help u just it should not be chem
Triangle ABC is graphed on a coordinate plane with vertices at A (-3,7), B (9,-8), and
C(-5, -6). If triangle ABC is dilated by a scale factor of m with the origin as the center
of dilation to create triangle A'B'C', what will be the coordinates of the dilated vertex
B?
Answer:
Step-by-step explanation:
What is the midpoint of the segment shown below?
Answer:
option c is the correct answer
HELP 25 POINTS BRAINLIEST EASY
Answer: the third one
Step-by-step explanation:
Sam asked some other children which sport they like. They all choose swimming. Now the most children choose swimming. How many children did Sam ask?
Answer:
five or more than five
Step-by-step explanation:
From the chart, we know that,
Number of children who chose soccer = 7 (this was the highest)
Number of children who chose swimming = 3
So for swimming to be chosen the most, it should gave been chosen by more than 7 children, i.e. 8 children or more than 8.
So the difference between 8 children and 3 children is = 8 - 3
= 5
Thus, 5 is the least number of other children to chose swimming.
Therefore, Sam asked at least 5 number of children or more than 5.
pls solve this fast pls help me fast
is depth the same thing as height?
Answer:
Depth is the downward direction actually and height is upward direction got it?
Step-by-step explanation:
Answer:
No height is like a positive number while depth is like a negative number
An airplane flies 105 miles per half an hour. How far can it fly in 1.25 hours at the same speed. Brainliest for correct answer. (ANSWER ISN't 262.5)
Answer:
Airplane fly 262.5miles far.
solution given:
rate=105 miles per 0.5 hour=210miles per hour
distance =rate ×time=210×1.25=262.5miles
Suppose the population of a town is 17,400 and is growing 2% each year.
Predict the population after 9 years.
Answer: 20,532
Step-by-step explanation:
17,400(.02)=348
348(9)=3132
17,400+3132=20,532
Answer:
Step-by-step explanation:
This is an exponential growth function of the form:
[tex]y=ab^x[/tex] where a is the initial population and b is the growth rate. This could also be written as
[tex]y=a(1+r)^x[/tex] which is a bit more accurate. We'll use that one. r is the percent growth: 2% for us.
Filling in the formula:
[tex]y=17400(1+.02)^x[/tex] and then simplifying:
[tex]y=17400(1.02)^x[/tex]
That's the model for this population. Filling in any number of years for x will give you the population y. Our time is 9 years:
[tex]y=17400(1.02)^9[/tex]
Take care of the exponents first, giving us:
[tex]y=17400(1.195092569)[/tex] and then multiply to get
y = 20,794.6 or 20,794 people (since you can't have 6/10 of a person)
I'm not sure of the question but that's the picture
Answer:
The answer is the first one
Step-by-step explanation:
[tex]46.2 \: {ft}^{2} [/tex]
Yha it is bad question :)
I hope that is useful for you
Two toy robots are turned on at the same time. The first robot beeps every 24 seconds. The second robot beeps every 36 seconds. In how many seconds will they beep at the same time? Choose only ONE best answer. А 12 B 24 36 72 E 96
How many solutions does the system have? 2x+3y=-6 3x-4y=-12. A) exactly one solution b) no solution c) infinity many solutions
Answer:
a.
Step-by-step explanation:
by elimanation,cimparison or substitution you wull get the value of x=-60/17 and y=6/17
Evaluate g(10) if g(x)=12x−4.
Answer:
116
Step-by-step explanation:
plug in the 10 in the x values to get 12(10)-4 which is 116.
Find the values of x and y.
Answer:
Step-by-step explanation:
y = 5
All sides measure the same So 8y= 40 y = 5
x = 30 degrees
The straight line of 40+40 is a straigth angle of 180 Each angle of equilateral triangle is 60 degrees.So its supplementary is 120.The other 2 angles need to add to 60 (30 each) to sum 180 in a triangle
Determine the value of y for y=x-2
Answer:
y=7, -3, 3, -9, 1 (in the empty boxes from left to right)
Step-by-step explanation:
Since y=x-2, all you have to do is take an x value from the top box and subtract 2 from that number to find the value of y.