Answer:
33.3
Step-by-step explanation:
The straight line parts adds to [tex]9+9+6=24[/tex]. Then it's the half circle. A whole circle of radius 3 would have a length of [tex]2\pi\cdot3,[/tex] but we're only using half of it, so we divide it by 2. The whole shape has a perimeter of[tex]24 + 3\pi \approx 24+9.3 = 33.3[/tex]
Errata corrige: I used the diameter instead of the radius
An exponential function in the form y=2401(b)^x contains the point (4,1). What is the value of b?
Could someone please help me?
-
I need help please
[tex]x = 7 - p\implies x + p = 7\implies \boxed{p = 7 - x} \\\\[-0.35em] ~\dotfill\\\\ y = 3p+4\implies y = 3(7-x)+4\implies y = 21-3x+4\implies \blacktriangleright y = 25 - 3x\blacktriangleleft[/tex]
4x-5y=12, 6x+10y=18: solve by addition method
Answer:
x = 3 , y= 0
Step-by-step explanation:
Answer:
[tex]x=3[/tex];[tex]y=0[/tex]
Step-by-step explanation:
Double the first one, and add it to the second, to get rid of y
[tex]2I + II :8x -10y +6x -10y = 24+18\\14x = 42 \rightarrow x=3\\[/tex]
For the second value, let's take 3 times the first, subtract twice the second, and solve:
[tex]3I-2II: 12x-15y-(12x+20y)=36-36\\-15y-20y=0 \rightarrow -45y=0 \rightarrow y=0[/tex]
Please help with this equation
Solving for b.
r=(b+a)m
Step-by-step explanation:
r = (b + a)m
Solve for b
r = bm + am
r/(am) = bm
r/(am) × 1/m = b
r/(am²) = b
b = r/(am²)
equation with a variable on both sides that equal 27
Answer:
x +20 = 20 + 4 -x +10 (x =7)Step-by-step explanation:
equation with a variable on both sides that equal 27
x +20 = 20 + 4 -x +10
write an equation of the line that passes through (0,2) and (3,10)
Answer:
Slope Form: y-2= 8/3*x+2
Step-by-step explanation:
PLS HELP IM BEING TIMED
Answer: am so sorry but I don’t know nothing
Step-by-step explanation:
I will Make Brainliest ! Plz solve those 5 Question on the Picture.
Answer:
[tex]y = {x}^{2} - 2x \\ (i) y= {3}^{2} - 2(3) = 9 - 6 = 3 \\ (ii)see \: the \: attached \: graph \\ (iv) {( \times - 1)}^{2} - 1 = 0 \\ (iii)x = 1 \rightarrow \: y = - 1\rightarrow(1,-1)[/tex]
[tex](v) \: the \: interval \: 3 - 1[/tex]
Emiliano thinks x=40 is the solution 1/2x=80 explain why he is wrong
Emiliano divided by two instead of multiplying. To solve the equation, he had to multiply both sides by two so that he could see what x equals when it's alone (if half of x is 80, x, or two halves, is 160).
The solution of the given equation is 160. Emiliano wrong because instead of multiplying he must have divided 80 by 2.
The given equation is 1/2 x=80.
What is an equation?In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
The solution of the given equation is
1/2 x=80
⇒ x =80×2
⇒ x =160
The solution of the given equation is 160. Emiliano wrong because instead of multiplying he must have divided 80 by 2.
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A man covers a distance of 150m in 1.5mins. Find the average speed in km per hour
Answer:
6 Km / hour
Step-by-step explanation:
Convert distance to Km ( 1 Km = 1000 m )
150 m = 150 ÷ 1000 = 0.15 Km
Convert 1.5 mins to hours ( 1 hour = 60 minutes )
1.5 = 1.5 ÷ 60 = 0.025 hours
average speed = [tex]\frac{distance}{time}[/tex] = [tex]\frac{0.15}{0.025}[/tex] = 6 Km / hour
The average speed in km per hour is 6 kilometers per hour
How to determine the average speed?The given parameters are:
Distance = 150 mTime = 1.5 minsConvert meters to kilometers
Distance = 150/1000 km
Distance = 0.15 km
Convert minutes to hours
Time = 1.5/60 hour
Time = 0.025 hour
The average speed is then calculated as:
Speed = Distance/Time
This gives
Speed = 0.15 km/0.025 hour
Evaluate
Speed = 6 kilometers per hour
Hence, the average speed in km per hour is 6 kilometers per hour
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A random sample of 500 adult residents of Maricopa County found that 361 were in favor of increasing the highway speed limit to 75 mph, while another sample of 400 adult residents of Pima County found that 270 were in favor of the increased speed limit. Construct a 95% confidence interval on the difference in the two proportions. Round your answer to four decimal places (e.g. 98.7654).
Answer:
5.006
Step-by-step explanation:
graph the equation x=5 ,x=2 ,y=-2 ,y=1
This is K12 in sixth grade
The committee is planning a party and 150 guests are expected. Each table seats 12 people.
How many tables will be needed to seat all 150 guests?
12
13
162
1800
Answer:
13
Step-by-step explanation:
divide 150 by 12
the answer is 12.5
round 12.5
;)
1/4 equals how many eighths
Answer:
The answer = 0.25
Write 1/ 5 √ 7 in index form
Your answer is long see it check correctly.
The index form of the fraction [tex]\frac{1}{(7^{(\frac{1}{5})}) }[/tex] is written as [tex]7^{(\frac{-1}{5})}[/tex] where the exponent notation is [tex]7^{(\frac{-1}{5})}[/tex].
Given data:
In index form, the expression [tex]\frac{1}{(7^{(\frac{1}{5})}) }[/tex] is written as [tex]7^{(\frac{-1}{5})}[/tex] , where the base is 7 and the exponent is -1/5. This means that we are taking the reciprocal of the fifth root of 7. The exponent of -1/5 indicates that we are essentially finding the inverse of the fifth root of 7.
When dealing with fractional exponents, the denominator of the fraction becomes the root, and the numerator becomes the power to which the base is raised. In this case, the base is 7, the denominator is 5, and the numerator is -1. So, [tex]7^{(\frac{-1}{5})}[/tex] represents the reciprocal of the fifth root of 7, which can also be expressed as the fifth root of 7 raised to the power of -1.
Hence, the exponent notation is [tex]7^{(\frac{-1}{5})}[/tex].
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The complete question is attached below:
Write [tex]\frac{1}{\sqrt[5]{7} }[/tex] in the index form.
Which ordered pairs represent points on the graph of this equation? Select all that apply.
3x + 2y = -12
(-6, 7)
(76)
(-4,0)
(0,7)
(3,-3)
(6,0)
The point (-4,0) will be the ordered pair of the equation 3x + 2y = -12. The correct option is B.
What is an equation of a line?An equation of the line is defined as the linear equation having a degree of one. The equation of the line contains two variables x and y. And the third parameter is the slope of the line which represents the elevation of the line.
The general form of the equation of the line is y = mx + c, where m is the slope and c is the intercept cut by the y.
To calculate the ordered pair by satisfying the equation with each pair of points.
3(-6)+2(7)= -4
3(-4)+2(0)=-12 YES
3(0)+2(7)=14
3(3)+3(-3)=0
3(6)+2(0)=18
Therefore, the point (-4,0) will be the ordered pair of the equation 3x + 2y = -12. The correct option is B.
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The box plots shown represent the average mileage of two different types of cars. Use the box plots to compare the data sets. Drag each value to show if it is greater for SUVs, greater for sedans, or if there is not enough information to tell.
Answer:
Parallel box and whisker plots are regular box and whisker plots, but drawn "one-above-the other" on the piece of paper. To enable to do this easily, draw an x-axis which is big enough for the largest value in the data, and small enough for the smallest value in the data (in the entire collection of data). Plot each box-and-whisker diagram below each other.
Step-by-step explanation:
pls mark
Answer:
Parallel box and whisker plots are regular box and whisker plots, but drawn "one-above-the other" on the piece of paper.
Step-by-step explanation:
If Dylan does a job in 50 hours and Kristen does a job in 75 hours, how long will it take them to do the job
together?
Find the area of the polynomial:
A.) 6a^3 + 12a^2 − 15a
B.) 6a^3 + 12a − 15
C.) 6a^2 + 12a − 15
D.) 5a^2 + 7a − 2
Answer:
A.) 6a^3 + 12a^2 - 15a
Step-by-step explanation:
Area = w * l
Area = 3a(2a^2 + 4a - 5)
Area = 6a^3 + 12a^2 - 15a
3. Write Math Two factors that make a product are sometimes called a factor
pair. Describe how using factor pairs helped you solve the problems.
four times the sum of x and 5 as an algebraic expression
Answer:
20x
Step-by-step explanation:
Multiply the numbers.
4 * 5x
20x
Can you please tell me if this is correct ?
Answer:
(6*3) - 5
Step-by-step explanation:
The product of 6 & 3 = 6*3 = 18
5 less than 18 means the required number is 5 units smaller than 18. so you have to subtract from 18
18 - 5 = 13
13 is 5 less than 18
Simon bought a $48 table on sale at 30% off.
Select from the drop-down menu to correctly complete the sentence.
The best estimate for the discount can be found using the expression
A)0.003(50)
B)0.3(50)
C)3(50)
D)30(50)
Explain, please!
Answer:
The answer is B. Hope this helps!
The importance of crushing the Whiskey Rebellion was to uphold
Answer:
Federal Authority should be the answer
The triangles shown below must be congruent.
25°
55-7
100"
100
55"
25°
0
о
A. True
о
B. False
9514 1404 393
Answer:
B. False
Step-by-step explanation:
The three pairs of corresponding angles have the same measures, so the triangles are similar by AA similarity. However, at least one pair of corresponding sides must be shown congruent before the triangles can be declared congruent.
There is nothing in the diagram to require the triangles be congruent.
With three corresponding equal angles triangles are not congruent. Therefore, the given statement is false.
What is the congruence theorem?Triangle congruence theorem or triangle congruence criteria help in proving if a triangle is congruent or not. The word congruent means exactly equal in shape and size no matter if we turn it, flip it or rotate it.
The three pairs of corresponding angles have the same measures, so the triangles are similar by AA similarity. However, at least one pair of corresponding sides must be shown congruent before the triangles can be declared congruent.
With three corresponding equal angles triangles are not congruent. Therefore, the given statement is false.
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3x+2=198
Solve it as Soon as possible!
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
Let's solve for x ~
[tex]3x + 2 = 198[/tex][tex]3x = 198 - 2[/tex][tex]3x = 196[/tex][tex] \boxed{ \boxed{x = \dfrac{196}{3} } \: \: or \: \: \boxed{ x = 65.33}}[/tex]Answer:
[tex]\boxed{\blue{ = \frac{196}{3}}} [/tex]
Step-by-step explanation:
Let's solve your equation step-by-step.
3x+2=198
Step 1: Subtract 2 from both sides.
3x+2−2=198−2
3x=196
Step 2: Divide both sides by 3.
[tex] \tt \: \frac{3x}{3} = \frac{196}{3} [/tex]
Result:
[tex]\boxed{\underline{ x = \frac{196}{3}}} [/tex]
A right circular cylinder has a surface area of 66π. If the height of the cylinder is 8, find the diameter of the base.
Answer:
6
Step-by-step explanation:
h = 8
Surface area = 66π
2πr(r +h) = 66π
2πr(r + 8) = 66π
[tex]r(r + 8) =\dfrac{66\pi }{2\pi }[/tex]
r² + 8r = 33
r² + 8r - 33 = 0
r² + 11r - 3r - 33 = 0
r(r + 11) - 3(r + 11) = 0
(r +11 ) (r - 3) = 0
r - 3 = 0 {Ignore r = -11 as radius will not have negative value}
r = 3
Diameter = 3*2 = 6 units
tickets to a fair cost $4 for children and $10 for adults. You are unsure of how many tickets were sold, but know that $200 was collected. define your variables. What would be my variables??
Answer:
4=
10=
200=
I dont actully know this i wanted to give it a try n all i got was this
equation for the line that passes through (4, -6) and has the slope 35.
Answer:
y = 35x - 146
Step-by-step explanation:
You just have to use the point-slope equation of a line which is (y - h) = m(x - k) where (h, k) is the point given and m is the slope given. Therefore, plug in h = 4, k = -6, m = 35 into the equation to get:
(y - ( -6)) = 35(x - 4) which simplifies to
y + 6 = 35x - 140 and if you want it in standard form, it is
y = 35x - 146