Answer:
A) 2.5
B) 7/3
C) 11/4
Step-by-step explanation:
A)
4x-1/2=x+7
3x-1/2=7
3x=7.5
x=2.5
B)
3x+2=2x+13/3
x+2=13/3
x=7/3
C)
2x-7/4=x+3/3
x=11/4
Hope this helps!
What is the area??????
Answer:
15.59
Step-by-step explanation:
The answer is 15.59 because to find the area of an equilateral triangle, you need to multiply the height by the length. In this scenario, the length is 6, and we need to find the height. Since we know that all of the sides of the equilateral triangle are 6, we can put a line dividing the equilateral triangle exactly in half as our height. This will form 2 triangles, and each of them will have a length of 3, and a slant height of 6. They would also be right triangles. Now, with this information you can do pythageroum thereom to find the height:: 3^2 + h^2 = 6^2. So, h = √27. Now, to find the area of a triangle, you must multiply the length by the height and then divide by 2. So (6 • √27)/2 is equal to 15.5884572681, which rounded is equivalent to 15.59. So the answer is 15.59.
Uma escola estadual de ensino fundamental e médio possui 600 alunos matriculados e nesse período de isolamento social ,os professores têm oferecido atividades remotas atravês ...
HELP GETS BRAINLIST! AND POINTS! (08.03 LC)
The two dot plots below compare the forearm lengths of two groups of schoolchildren:
Forearm Length, Group A
10
11 12 13
Length (inches)
Forearm Length, Group B
10 11 12 13
Length (inches)
Based on the visual inspection of the dot plots, which group appears to have the longer average forearm length?
Answer:
group A has longer average
Step-by-step explanation:
the average for group A : 11+11+12+12+12+12+13+13+13+13= 122/10=12.2
the average for group B : 10+10+10+10+10+11+11+12+12+12=108/10=10.8
Answer:
group A has longer average
Step-by-step explanation:
Henry examined the table that represents values satisfying the function f(x) shown below.
Based on the information in the table, which one of these key features is incorrect?
A) the maximum value of the function is 4.
B) the y-intercept of the graph of the function is at (0,-18).
C) a local minimium is located within the interval [3,6].
D) a local maximum is located within the interval [ 1,3].
the answer is A. it is asking for the incorrect answer therefor all are correct except A.
Answer:
A got it right
Step-by-step explanation:
The function f(x) =2(3)^x is to be multiplied by the function g(x) 3(3)^(2x) to create the function h(x). Which function is produced?
A. h(x)=6(9)^(3x)
B. h(x)=6(3)^(2x^2)
C. h(x)=6(3)^(3x)
D. h(x)=6(6)^(2x^2)
Please show work!
Answer C is the right answer.
Step-by-step explanation:
h(x) = f(x) * g(x)
h(x) = (2*3^x ) * ( 3*3^2x )
2 * 3 is easy, that will be 6.
The ground number 3 remains 3 in h(x), so that is easy too...
But with multiplying exponents, you can add them.
Let's concentrate only on the exponents of f(x) and g(x)... and add them...
x + 2x =3x
So, now combine the easy part with this new exponent, and you get h(x) = 6*(3)^(3x)
So answer C is the right answer.
Find angle x,y,x,p!
'very easy
Answer:
y=120
z=120
x=120
p=60
Step-by-step explanation:
y=120
z=120
x=120
p=60
The circumference of a circle is 56.52 inches. What is the diameter of the circle?
A. 4.5 in.
B. 9 in.
C. 18 in.
D. 36 in.
Answer:
Circumference of a circle = πd
d=diameter
56.52=3.142d
d=17.98 inches d=18 inches
Answer:
18 in.
Step-by-step explanation:
If you do the math, you'd actually get 17.99 inches lol. Just round your answer to 18 since it's THAT close to 18.
There are 180 girls in a mixed school. lf the ratio of girls is to boys is 4:3 , the total number of students in the school is what?
Answer:
315
Step-by-step explanation:
No. of girls be g
No. of boys be b
g= 180
g/b = 4/3
b = 3g/4
b= 3(180/4)
b= 3*45
b= 135
.
Find b+g
= 135 + 180
= 315
Pythagorean theorem!! If you have a leg that is 10in long and the hypotenuse is 26in long, what is the length of the other leg?
Answer:
a = 24 inches
Step-by-step explanation:
a^2 + b^2 = c^2
a^2 + 10^2 = 26^2
a^2 + 100 = 676 ////// -100 both sides
a^2 = 576
a = 24 /////UNITS!
a = 24 in.
During a sale at the market, steaks sold for $2 and watermelons sold for $1.50. Jan spent $17 and bought a total of 10 steaks and watermelons. How many of each did she buy?
Answer:
She bought 4 steaks and 8 watermelons, hope this helps
Step-by-step explanation:
Name a three dimensional shape that cannot have a triangle as a two dimensional cross section.
Answer:
A sphere
Step-by-step explanation:
A cross section of a three dimensional figure is the surface or intersection of the three dimensional figure and a plane, it is the shape obtained by cutting straight through the three dimensional figure
The shape of an inclined cross section of a cube can be a triangle however, he shape of a horizontal and inclined cross section of a sphere is a circle.
The sample shows how many items 7 people checked out from a library (2,3,13,2,3,6,2) make a dot plot to show data. What is the range? What is the median?
Answer:
median = total observation\ no of observation
median=2+3+2+3+2+6+13\7
median=19.857
Step-by-step explanation:
PLEASE MARK ME AS A BRAINLIEST ANSWER AND FOLLOW ME PLEASE
_________________________________
Hey!!!
Solution,
1. Arranging the data in ascending order:
2,2,2,3,3,6,13
N(total number of items)=7
Now,
Median=(N+1/2)th item
=(7+1/2)th item
=(8/2)th item
=4th item.
Median = 3
2. Solution,
Highest score=13
Lowest score=2
Range=highest score-lowest score
=13-2
=11
So, Median=3 Range=11Hope it helps
Good luck on your assignment
Stay safe....
__________________________________
Does that look right or am I supposed to multiply and get 52.7
Answer: multiply to get 52.7
Step-by-step explanation: scale factor enlargement means the number they give you (6.2) the new size.
in this case would be 8.5 times 6.2
I hope this helps!
maria rolls a regular number cube with sides labeled 1 through 6 a total of 45 times. The number 4 is rolled 12 times. What is the experimental probability of rolling a 4?
Answer:
... ...................
please help e and my sister want to go somewhere but we cant because of this
Answer:
1 5/12 lb
Step-by-step explanation:
This is a subtraction problem.
He started with 4 2/3 lb and used 3 1/4 lb, so you need to subtract 3 1/4 lb from 4 2/3 lb.
Notice that the fractions do not have the same denominator, so we need a common denominator and equivalent fractions.
We start with the
subtraction below
4 2/3
- 3 1/4
---------------
The least common denominator of 3 and 4 is 12. 12/3 = 4, and 12/4 = 3, so we get equivalent fractions with the common denominator 12.
We use the LCD to get
the subtraction below
4 8/12
- 3 3/12
----------------
Now we subtract the whole numbers and the fractions.
4 8/12
- 3 3/12
----------------
1 5/12
Answer: 1 5/12 lb
Sian is twice as old as her sister Abigail. They divide 30 pounds in the ratio of their ages. How much do Sian and Abigail receive?
Answer:
Sian would receive 20 Pounds while Abigail would receive 10 Pounds.
Step-by-step explanation:
Given that Sian is twice as old as her sister Abigail, it means that if Abigail's age is T years then Sian's age would be 2T years.
If they divide 30 pounds in the ratio of their ages, the ratio of their ages will be
T : 2T (Ratio of Abigail's gae to Sian's age)
The amount received by Abigail
= T/(T + 2T) × 30
= T/3T × 30
= 1/3 × 30
= 10 Pounds
The amount received by Sian
= 2T/(T + 2T) × 30
= 2T/3T × 30
= 2/3 × 30
= 20 Pounds
Adam had some candy to give to his three children. He first took seven pieces for himself and then evenly divided the rest among his children. WRITE AN EXPRESSION for how many pieces each child received
Answer:
(x-7)/3
Step-by-step explanation:
x is the amount of candy
x-7 is the amount that Adam got.
(x-7)/3 is the expression for how many pices each child received.
A major retailer has stuff of 6,400 employees for the holidays after the holiday they will decrease their staff bye 30 how many employees will they have after the holidays
Answer:
4480 employeesStep-by-step explanation:
Total number of staffs = 6400 employees
If after the holiday they will decrease their staff bye 30%, the amount of staffs decreased = 30% of 6400
= 30/100 * 6400
= 1920employees.
Amount of staffs that they will have after the holiday = Total staffs - decrement
Amount of staffs that they will have after the holiday = 6400 - 1920
= 4480employees
Hi! I need the answer for this question: solve until you get the minimum expression: 2x . (x+y) + 1/5 x.x + 1/2 y . (x + 3)
Answer:
11/5 x^2 + 5/2 xy + 3/2 y.
Step-by-step explanation:
2x . (x+y) + 1/5 x.x + 1/2 y . (x + 3)
= 2x^2 + 2xy + 1/5 x^2 + 1/2xy + 3/2 y
= 11/5 x^2 + 5/2 xy + 3/2 y.
y is directly proportional to x
when x=6 y=4
determine the value of y when x=9
Answer:
when x=9 then y=6
Step-by-step explanation:
Given that the proportion is a direct proportion, the value of y when x = 9 is 6
How to determine the value of y?From the question, we understand that y is directly proportional to y
This means that:
y = kx
Where k is the constant of proportionality
x = 6, when y = 4
So, we have:
4 = 6k
Divide by 6
k = 2/3
This means that:
y = 2/3x
When x = 9, we have:
y = 2/3 * 9
Evaluate
y = 6
Hence, the value of y when x = 9 is 6
Read more about direct proportion at:
https://brainly.com/question/16177263
#SPJ2
find the area of the shape shown below
Answer:
I think the area is 12 units.
Step-by-step explanation:
Anyone correct me if I'm wrong!
So, I started with 6 times 2 is 12 but since it's a triangle, you have to divide it by 2 . Cause if you cut a square or rectangle, it will become a triangle.
So, 6 for half of the rectangle.
Then in the middle it's a square so 2 times 2= 4.
That square is 4.
Last one would be half a square, so 2 times 2= 4. Divide it in half, you get 2.
That part is 2.
Then I think you have to add all of them, 6+4+2=12
So I think it's 12 units??
Answer:
There are 3 shapes in the figure.
1 scalene triangle
1 equilateral triangle
1 square
the formula to find the area of a triangle is 1/2 x base x height:
Area of scalene triangle: 1/2 x 6 x 2 = 6 units^2
Area of equilateral triangle: 1/2 x 2 x 2 = 2 units ^2
Area of square: (base x height)
Area of square: 2 x 2 = 4 units^2
Then add up all the areas:
6 units^2 + 2 units^2 + 4 units^2 = 12 units^2
So the area of the entire figure is 12 square units.
pls mark brainliest if this helped :)
7) Ryan's school is selling tickets to a play. On the first day of ticket sales the school sold 8 senior citizen
tickets and 10 student tickets for a total of $182. The school took in $109 on the second day by selling 6
senior citizen tickets and 5 student tickets. What is the price each of one senior citizen ticket and one
student ticket?
What is the slope of the line that contains the points (4-1 and1,4)?
Answer:
-5/3 = m
Step-by-step explanation:
Don't you mean (4, -1) and (1, 4)? If so, if we start with (1, 4) and move to (4, -1), then x (the "run") increases by 3 and y (the "rise") decreases by 5. Then the slope is m = rise / run = -5/3 = m
A yard is equal in length to three feet .the function as inputs and returns a measurement in feet as output
Answer:
The output will be 46.2 since the input normally is 1 and the output is 3. So multiply the input by 3 to get your output.
Step-by-step explanation:
The correct answer is 46.2
if the input is 15.4 the answer will be 46.2.
How did i got the answer:
The output will be 46.2 since the input normally is 1 and the output is 3. So multiply the input by 3 to get your output.
Answer: 46.2
Hope this helps.
What is the solution of the system of equations shown below? y = 4x + 4 y
= x^2 - 5x + 18 *
Answer:
(7, 32) and (2, 12)
Step-by-step explanation:
y = 4x + 4
y = x² - 5x + 18
4x + 4 = x² - 5x + 18
x² - 9x + 14 = 0
14 = (-7)(-2)
-9 = -7 + (-2)
(x - 7)(x - 2)=0
x= 7, x = 2
For x = 7
y = 4x + 4 = 4*7 + 4 = 32
(7, 32)
For x = 2
y = 4x + 4 = 4*2 + 4 = 12
(2, 12)
Check:
y = x² - 5x + 18
(7, 32)
32 = 7² - 5*7 + 18
32= 32 true
(2, 12)
12 = 2² - 5*2 + 18
12 = 12 true
Answer:
(7, 32) and (2, 12)
Step-by-step explanation:
in a test +3 marks are given for every correct answer and -1 for every incorrect answer Mary attempted all questions and scored +20 marks though she got 10 correct answers (1)how many incorrect answers has she attempted? (2)how many questions were given in the test?
Answer:
10
20
Step-by-step explanation:
correct c=3 x 10
incorrect i=-1
-------
3c-i=203*10-i=20i=10incorrect= 10
number of questions= 10+10= 20
need help ASAP!! please
Answer:
Step-by-step explanation:
a is the base
b is the power
c is the root
a = 7
b = 9
c = 4
On a coordinate plane, a curved line with a minimum value of (negative 2.5, negative 12) and a maximum value of (0, negative 3) crosses the x-axis at (negative 4, 0) and crosses the y-axis at (0, negative 3). Which statement is true about the graphed function? F(x) 0 over the interval (–∞, –3) F(x) > 0 over the interval (–∞, –4)
Answer:
f(x) > 0 over the interval [tex](-\infty,-4)[/tex]
Step-by-step explanation:
If f(x) is a continuous function, and that all the critical points of behavior change are described by the given information, then we can say that the function crossed the x axis to reach a minimum value of -12 at the point x=-2.5, then as x increases it ascends to a maximum value of -3 for x = 0 (which is also its y-axis crossing) and therefore probably a local maximum.
Then the function was above the x axis (larger than zero) from [tex]- \infty[/tex], until it crossed the x axis (becoming then negative) at the point x = -4. So the function was positive (larger than zero) in such interval.
There is no such type of unique assertion regarding the positive or negative value of the function when one extends the interval from [tex]- \infty[/tex] to -3, since between the values -4 and -3 the function adopts negative values.
Answer:
D
Step-by-step explanation:
I took it on EDGE
Choose the answer based on the most efficient method as presented in the lesson. -- If the first step in the solution of the equation -x + 6 = 5 - 3x is "subtract 5," then what should the next step be? -- A.)add 3x B.) add x C.) subtract 6
Answer:
Should be B...add x
Which of these procedures is the same as multiplying a whole number by 1,000?
A. Add 1,000 to the whole number, three times.
B. Move the decimal point three places to the left and fill in the blank places with zeros.
C.Multiply the whole number by 3, ten times.
D.Move each digit of the whole number three places to the left and fill in the blank places with zeros.
Answer:
D. Move each digit of the whole number three places to the left and fill in the blank places with zeros.
Step-by-step explanation:
Take the number 5 for example.
If you multiply this by 1,000 you get 5,000.
You may do this by moving the digit 3 places to the left which will give you
5---, then you replace the empty spaces with zeros.
