Answer:
i pretty sure its three
Step-by-step explanation:
Find the area of the following figure.
18in +21in + 17in + 9in =
A. 555 in2
B. 531 in2
C. 612 in2
B. 540 in2
Answer:
The answer is B- 531^2
Step-by-step explanation:
l m f a o
your
pfp
The solution is, the area of the following figure is 360 in^2.
What is area ?Area is the measure of a region's size on a surface. The area of a plane region or plane area refers to the area of a shape or planar lamina, while surface area refers to the area of an open surface or the boundary of a three-dimensional object.
here, we have,
For this case we have that by definition, the area of a rectangle is given by:
A = l*w
In this case, the rectangle is 18 in side, & 21 in.
then:
A = 18*21
= 378
On the other hand, the area of a triangle is given by:
A = 1/2 b * h
Where:
b: It is the base of the triangle
h: It is the height
We have according to the figure that:
b = 21 - 17 = 4
h = 18 - 9 = 9
So:
A = 1/2 *4 *9
=18
Finally, the area of the figure is:
378 - 18
=360
Answer: The solution is, the area of the following figure is 360 in^2.
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There are 9 students entering the school district's science project with all students having an equal chance
of winning. There are medals for 1st, 2nd, and 3rd place. In how many different ways can the medals be
awarded?
Find the error then show the correct way step by step.
Question 4
The error was that in step 2, when distributing -3 into the parentheses, the person did not change the sign of 24 so that it was negative, since a negative number multiplied by a positive number will always make a negative number. Here is the correct way to solve this equation:
[tex]-5x+12-7x=-3(5x+8)\\-12x+12=-3(5x+8)[/tex]
Distrubute -3 into the parentheses
[tex]-12x+12=-15x-24[/tex]
Subtract both sides by 12
[tex]-12x+12-12=-15x-24-12\\-12=-15x-36[/tex]
Add 15x to both sides
[tex]-12+15x=-15x-36+15x\\3x=-36[/tex]
Divide both sides by 3
[tex]\frac{3x}{3} =\frac{-36}{3} \\x=-12[/tex]
Question 5
The error was that 2 was added on both sides in step 5 instead of being subtracted from both sides. Here is the correct way to do it, starting from step 4:
[tex]10=16x+2[/tex]
Subtract both sides by 2
[tex]10-2=16x+2-2\\8=16x[/tex]
Divide both sides by 16
[tex]\frac{8}{16} =\frac{16x}{16} \\\frac{1}{2}=x[/tex]
I hope this helps!
Write these equations of the line in point-slope form given the slope
#1 5 and (13, -8).
#2 2/5 and (6, -7
Answer: #1) y=5x-73
#2) y= 2/5x - 47/5
Step-by-step explanation:
Solve for z:
-0.25z = -1.25
Answer:
z = 5
Step-by-step explanation:
divide both sides of the equation by -0.25
[tex]-0.25z = -1.25[/tex], original equation
[tex]\frac{-0.25z}{-0.25} =\frac{-1.25}{-0.25}[/tex], divide both sides by -0.25, solve for -1.25 ÷ -0.25 = 5
[tex]z = 5[/tex], final answer
I need help with 1 - 4 please someone
Answer:
-3
Step-by-step explanation:
If a person walks 16 miles in 10 minutes, how far will that person walk in one hour?
Answer:
too far to be human
Step-by-step explanation:
in 10 mins i walk 1 mile
Answer:
96 miles
Step-by-step explanation:
There are 60 minutes in 1hr so 10*6= 60
16*6= 96
:)
There are a total of 120 counters in a box.
There are only red counters and blue counters in the box.
There are three times as many red counters as blue counters in the box.
Carl takes
1
of the red counters from the box.
3
Kerry takes 80% of the blue counters from the box.
Work out the ratio of the number of red counters to the number of blue counters now in the
box.
Give your ratio in its simplest form.
Answer:
The ratio of red to blue would be 60: 6 which can be simplified to 10:1.
The ratio of red to blue counters would be 60: 6 which can be simplified to 10:1
What is ratio ?Ratio is the comparison of two quantities in terms of same units.
Example : If a & b be two numbers, then the ratio is a/b, where b≠0
What is the required ratio ?Let Blue counters = x
Red counters would be = 3 times of blue counters = 3x
There are a total of 120 counters in a box.
First we have to find, the number of red and the number of blue counters:
3x + x = 120
⇒ 4x = 120
⇒ x = 120/4
⇒ x = 30
There are 30 blue counters.
Red counters = 3×30 = 90
Carl took 1/3 of the red, 90 / 3 = 30, so there were 60 red counters left in the box.
Kerry took 80% of the blue, 30 * 0.80 = 24, so there were 6 blue counters left in the box.
The ratio of red to blue counters would be 60: 6 which can be simplified to 10:1.
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PLS HELP DUE IN A HOUR!! FIND X
Answer:
x = 20
F = 46
Step-by-step explanation:
For x :
( 20 ) * 2 = 40
40 + 3 = 43
For degrees F
Add triangles have a angle sum of 180
So you just subtract 180 by the angles in the triangle
180 - 91 = 89
89 - 43 = 46
46 is remaining so it is the missing degrees ( F )
Express as a difference. 7+3. Please explain.
Answer:
7 + 3 = 10, difference means the answer to a subtraction problem, not sure I understand the question
Step-by-step explanation:
The given expression (7 + 3) represented in difference form as [tex]7-(-3)[/tex]
Difference of numbers :
We have to express 7 + 3 as difference of two number.
As we know that,
[tex]a-(-b)=a+b[/tex]
In above expression, (a + b) is difference of two number a and -b.
Similarly,
[tex]7+3=7-(-3)[/tex]
Thus, (7 + 3) represented in difference form as [tex]7-(-3)[/tex]
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Use the pic for more info and I will mark as brainlest
De que numero es 49 un medio de. un tercio mas?
Answer:
49 entre 3=16.33
la mitad de 49=24.5
Step-by-step explanation:
A playground is shown below. What is the area of the playground?
Answer:
217
Step-by-step explanation:
You would do the area of the big rectangle and subtract the areas of the two triangles. The triangles add up to 63 and the rectangle is 280 ft^2
The figure below shows a window that is made from a part of a square and a part of a circle,
A. What is the perimeter of this figure, to the nearest unit?
B. What is the area of this figure, to the nearest square unit
Answer:
a. perimeter is 112
b. area is 784
Let f(x)= 6/-2+2e^-0.3x
What is f(-1)?
Answer:
1.3
Step-by-step explanation:
What is bigger 3/5 or .41
Step-by-step explanation:
3/5 is the correct answer to this
Step-by-step explanation:
.41 is biggee than 3/5......
Assume that the Poisson distribution applies and that the mean number of hurricanes in a certain area is 5.3 per year. a. Find the probability that in a year, there will be 3 hurricanes. b. in a 45-year period, how many years are expected to have 3 hurricanes ? c. How does the result from part (b) compare to a recent period of 45 years in which 5 years had 3 hurricanes? Does the Poisson distribution work well here?
Answer:
a) 0.12386 = 12.386% probability that in a year, there will be 3 hurricanes.
b) 5.57 years are expected to have 3 hurricanes, that is, between 5 and 6 years.
c) 5 years is very close to the mean of 5.57, which means that the Poisson distribution works well here.
Step-by-step explanation:
In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:
[tex]P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}[/tex]
In which
x is the number of sucesses
e = 2.71828 is the Euler number
[tex]\mu[/tex] is the mean in the given interval.
The mean number of hurricanes in a certain area is 5.3 per year.
This means that [tex]\mu = 5.3[/tex]
a. Find the probability that in a year, there will be 3 hurricanes.
This is P(X = 3).
[tex]P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}[/tex]
[tex]P(X = x) = \frac{e^{-5.3}*5.3^{3}}{(3)!} = 0.12386[/tex]
0.12386 = 12.386% probability that in a year, there will be 3 hurricanes.
b. in a 45-year period, how many years are expected to have 3 hurricanes ?
0.12386 each year. So, for 45 years:
45*0.12386 = 5.57
5.57 years are expected to have 3 hurricanes, that is, between 5 and 6 years.
c. How does the result from part (b) compare to a recent period of 45 years in which 5 years had 3 hurricanes? Does the Poisson distribution work well here?
5 years is very close to the mean of 5.57, which means that the Poisson distribution works well here.
What is the factored form of y^2 + xy − 6x^2?
Answer:
(y-2x)(3x+y)
B
Answer:
[tex]B. \left(y-2x\right)\left(y+3x\right)[/tex]
Step-by-step explanation:
[tex]y^2+xy-6x^2[/tex]
Break the expression into group:
[tex](yx^{2} -2xy)(3xy-6x^{2} )[/tex]
factor out [tex]y[/tex] from [tex]y^{2} -2yx:y\left(y-2x\right)[/tex], and factor out, [tex]3x[/tex] from [tex]3yx-6x^2:3x\left(y-2x\right)[/tex]
[tex]y\left(y-2x\right)+3x\left(y-2x\right)[/tex]
Now, factor out common terms: [tex]y-2x[/tex]
[tex]\left(y-2x\right)\left(y+3x\right)[/tex]
_________________
OAmalOHopeO
Hailey's car used 4 gallons to travel 172 miles. At what rate does the car use gas, in miles per gallon?
Answer:
43
Step-by-step explanation:
43 miles for every 1 gallon of gas
A combination of numbers and operations is called formula: true or false?
Answer:
true
Step-by-step explanation:
its actually false
True, A combination of numbers and operations is called formula.
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
We have to given that;
A combination of numbers and operations is called formula.
Now, We know that;
The formula is made by the combination of numbers and operations.
Let an example of a formula as;
⇒ (a + b)² = a² + 2ab + b²
Hence, We get;
The above formula is made by the combination of numbers and operations.
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What is the answer
7(2m+5)
Answer:
14m+35 is your answer ☺️☺️☺️
Answer:
14m+35
Step-by-step explanation:
7(2m+5)
7(2m)+7(5)
14m+35
A store that sells skis buys them from a manufacturer at a wholesale price of 57. the stores markup rate is 50%
What price does the store charge it's customers for the skis
Answer:
$85.50
Step-by-step explanation:
57 * .5 = 28.5
28.5 + 57 = 85.5
therefore, the answer would be $85.50
Answer:
85.5
Step-by-step explanation:
Malaya wrote the expression below.
6- 33 = (22+5)
Which value is equivalent to Malaya's expression?
A. -3
B. 3
C. 5
D. -1
-2(x + 2) =
Please help
Answer:
-2x - 4
Step-by-step explanation:
Is your expression
-2 x x = -2x
-2 x 2 = 4
therefore, your expression would be:
-2x - 4
Answer:
-2(x + 2)= -2x - 4
Step-by-step explanation:
WILL GIVE BRAINLST
hAVE A GOOD DAY
Answers:
9) 16/100 = 8/50 = 4/25
10) >
Lincoln is preparing many gifts for a family holiday party. Each gift must either be
wrapped with wrapping paper or prepared in a gift bag. Lincoln can wrap a single gift
in 6.5 minutes and he can do a giftbag in 2 minutes. Lincoln prepared a total 13 gifts
in 57.5 minutes. Write a system of equations that could be used to determine the
number of gifts Lincoln wrapped and the number of giftbags he prepared. Define the
variables that you use to write the system.
Let
Let
System of Equations:
Submit Answer
Answer:
Im not sure but i think you add the vaariableafter the +
linda bought 1 shirt and 2 ties at the same store. What is the total price, in dollars and cents, of Linda's purchase?
Fill in the table and graph the points 1 Fill in the table for the equation: y = 3x + 2
x y
0 ?
1 ?
2 ?
2. Graph the points.
Find the surface area of the prism 5 m 5 m 4 m 7 m 6 m
Answer:
136 m²
Step-by-step explanation:
Bottom: 6x7=42
Sides: 5x7x2=70
Triangles: 2x1/2x6x4=24
42+70+24=136
what is the volume for this prism 7 1/2cm 12cm 15 1/2cm