circumference of circle: 2πr
2πr = 3πr = 1.5 cmarea of circle: πr^2
πr^2π(1.5)^22.25πWhat is the midpoint formula
Answer:
see image
Step-by-step explanation:
You average the x's and average the y's.
This means add x+x and divide by 2. And add y+y and divide by 2. See image.
if angle 6 is 25 degrees how much is 7
Given:
Angle 6 = 25 degrees
To Find:
The value of Angle 7
Solution:
We know that,
the value of Angle 6 is equal to 25 Degrees
Since Angle 6 and Angle 7 together comprise of a Straight Line, this means that they are Supplementary Angles.
Therefore,
Angle 6 + Angle 7 = 180 degrees
This implies that,
25 degrees + Angle 7 = 180 degrees. (since Angle 6 = 25 Degrees)
Angle 7 = (180-25) degrees
Thus ,
Angle 7 = 155 degrees
Hence, Angle 7 is 155 degrees (Option 1)
The height of a cuboid is 5 cm and its length is 2cm more than the breadth. If its volume is 240cm, find its length and breadth.
Answer:
Final answer -
[tex]length = 6 \: cm \\ breadth = 6 + 2 = 8 \: cm[/tex]
hope helpful :D
Find the perimeter of this semi-circle with radius, r = 42cm. Give your answer as an expression in terms of π .
Answer:
C≈263.89 cm
Step-by-step explanation:
A student usually saves $20 a month. He would like to reach a goal of saving $350 in 12 months. The student writes the equation 350 = 12(x+20) to represent this situation. Solve the equation for x.
Write your answer as a sentence that describes what the variable x represents.
Enter your answers and your work or explanation in the box provided.
Answer:
The student would need to save $9.17 more per month
Step-by-step explanation:
350 = 12(x+20)
350 = 12x + 240
12x = 110
x = 110/12
x = $9.17
Mrs. Nigrini picks up some grapefruits that each weigh 1/2 pound. When she checks out she finds her bag of grapefruit weighs exactly 6.5 pounds. Each grapefruit costs $1.29. How much did she spend on grapefruit?
Answer:
$16.77
Step-by-step explanation:
1. Grapefruit cost 1/2 pound = 0.5 pound
2. Since the bag weighs 6.5 pounds, you can do 6.5/0.5 to find the number of grapefruits
3. 6.5/0.5 = 13
4. The total cost of the grapefruits would be $1.29 * 13 = $16.77
What value of y makes the number sentence shown true?
y−3=15
Answer:
18
Step-by-step explanation:
y-3=15
+3 +3
if you add 3 to the other side, you would get:
y=18
What is the domain of the function graphed below?
A. {x | x = -1,2,4}
B. {x | x=-2,-1,2,4}
C. {x | x=2}
D. {x | x=-2,4}
= is not equal to sign
Answer:
{x | x ≠ -1, 2, 4}
Step-by-step explanation:
Domain: input values (x-values)
Asymptote: a line which the curve gets infinitely close to, but never touches.
Hole: a point on the graph where the function is not defined.
From inspection of the graph:
Vertical asymptotes at x = -1 and x = 4Hole at x = 2As vertical asymptotes and holes restrict the domain of a rational function, the domain is {x | x ≠ -1, 2, 4}
What type of number is -0.12?
Choose all answers that apply:
A
Whole number
B
Integer
С
Rational
D
Irrational
who ever gets right 100 points.... HELP ASAP
Answer:
3rd Table
Explanation:
1st and 2nd option does not relate time taken or speed together while jogging and walking. They are irrelevant thus they cancels out.3rd option relates time taken and speed together in a arranged way. It is easy to understand and find the distance covered.4th option seems confusing as there is no numerical digit in the table. We cannot find miles covered from this given information.What is the western most state in the United States?
°Hawaii
°Florida
°Wisconsin
°Texas
Hawaii
hope it helps...!!!
A 12-foot ladder is leaning against a wall. The bottom of the ladder is 5 feet away from the bottom of the wall.
Approximately how high up the wall does the top of the ladder reach?
Answer:
10.9 units
Step-by-step explanation:
Let the hight of the wall be " x ".
( Height = x )
Here,
12 foot ladder is the hypotenuse side.
( Hypotenuse = 12 )
5 feet away is the base side.
( Base = 5 )
Formula : -
Height² + Base² = Hypotenuse²
x² + 5² = 12²
x² + 25 = 144
x² = 144 - 25
x² = 119
x = √119
x = 10.9 approximately
Therefore,
High up the wall does the top of the ladder reach is 10.9 units.
Show how to find m<1 using the inverse cos of <1.
[tex]\text{We know that,}\\\\\cos \theta = \dfrac{\text{Base}}{\text{Hypotenuse}}\\\\\\\text{For}~ \angle1,\\\\~~~~~~\cos \angle 1 = \dfrac bc\\\\\\\implies \cos \angle 1 = \dfrac 35\\\\\\\implies \angle 1 = \cos^{-1} \left( \dfrac 35 \right)\\\\\\\implies \angle 1 = 53.13^{\circ}\\\\\\\text{For} ~ \angle 2,\\\\~~~~~~~\cos \angle 2 = \dfrac ac\\\\\\[/tex]
[tex]\implies \cos \angle 2 = \dfrac 45\\\\\\\implies \angle 2 =\cos^{-1} \left( \dfrac 45 \right)\\ \\\\\implies \angle 2 = 36.86^{\circ}[/tex]
[tex]\text{Hence,}~~ m\angle 1 = 53.13^{\circ}~~ \text{and}~~ m\angle 2 =36.86^{\circ}.[/tex]
if x cubed = -8, what does x equal
Let's start the sum as follows:
x³ = 8
X × X × X = 8
This means there are 3 number which after Multiplication gives answer 8.
If 2 is multtiplied 3 times it will give you 8
Thus the answer of x is 2
x = 2.
x^3 = -8
The cube root of 8 is 2 = 2 x 2 x 2 is 8.
But, the answer is negative, which means that the cube root of -8 must be -2.
-2 x -2 x -2 = -8
x = -2
Hope this helps!
Look at this set of 9 numbers:
30
59
44
58
30
69
89
30
44
By how much would the mode increase if the number 80 were added to the set?
Answer:
The mode would not increase or decrease.
Step-by-step explanation:
I say this because the mode is the value(s) in the data set that occur most frequently. 30 is the mode before adding 80 because 30 is in the set 3 times, more than the other values. Because 80 would be the only 80 in the set it would not become the mode once added. I hope this explained my reasoning and helped!
Write your answer as a fraction or as a whole or mixed number.
Answer:
9 days
Step-by-step explanation:
because if you turn 7 ⅞ into 63/8 then do 63÷7 you get 9
Answer:
9 days.
write 7/8x9, and put a 1 under it.
7x9=63
8x1=8
63/8 simplified is 7 7/8
Step-by-step explanation:
5. 4. Ms. Le has a bag of marbles. The table below shows the amount she drew of each marble. Color Amount Blue 8 Red 10 Yellow 9 Green 6 Purple 7 Based on these results, what is the probability that Ms. Le will choose a yellow or purple marble? A 2/5 B 1/16 C 1/8 D 4/5
Answer:
A, 2/5
Step-by-step explanation:
8 + 10 + 9 + 6 + 7 = 40
9 + 7 = 16
16/40
divide both sides by 8 (common factor)
2/5
A group of friends were working on a student film. They spent all their budget on
equipment and props. They spent $369 on equipment, and 55% of the total budget on
props. What was the total budget for their student film?
Answer:
$820
Step-by-step explanation:
Total = Equipment + Props
T = 369 + 0.55T
0.45T = 369
T = 820
I hope this helps!
Lamont designs a survey of town residents in an attempt to predict who will be elected mayor. he chooses his sample of 500 people from the town’s 40,000 residents by asking his question to every person leaving the public library on a saturday. which suggestion would most improve lamont’s random sample? lamont should sample only adults. lamont should sample only registered voters. lamont should decrease the sample size. lamont should ask every fifth person.
Lamont should sample only registered voters to predict who will be elected mayor
What is a survey?A survey is a research method used for collecting data from a predefined group of respondents to gain information and insights into various topics
Since Lamont is trying to predict who will be elected, surveying people that are not registered to vote will not give him an accurate prediction. If someone is not registered to vote, they cannot vote for any candidate.
To get more accurate results, Lamont should only sample people that are registered voters.
To know more about the survey follow
https://brainly.com/question/25257437
Answer:
b
Step-by-step explanation:
edge test
Find the slant height?
35
43
45
47
Answer:
45
Step-by-step explanation:
Slant height = √(altitude)² - (1/2 base)²
Sh = √53² - 28²Sh = √2809 - 784Sh = √2025Sh = 45Apologies as my previous response was incorrect.
Brainliest + thanks!!
Explanation needed :3
Answer:
To create a "mini-triangle", we could use any number pairs (coordinates matter). We can use the side lengths of 4, 6, and 7 as they are the smallest pairs. It's a pretty easy concept which I'm sure you'll be able to grasp (I know you're smart! :) ). Ask your teacher if you have more questions. <3
Good luck!,
daintysword; date :: 1899Answer:
Side Lengths of 4,6, & 7
Side Lengths of 8,9, &4
Step-by-step explanation:
According to the image given.
We must know that in order to be a triangle the following below must be include:
All 3 vector have different directionSum of sizes of 2 vector must be greater than 3rd oneNote:
< ⇒ less than
> ⇒ greater than
= ⇒ equal
Solving all the given :
-------------------------------------------------------------------------------------------------------------
Side Lengths of 4,6, & 7
4 + 7 > 7
10 > 7
True
-------------------------------------------------------------------------------------------------------------
Side Lengths of 2,10,&3
2 + 3 > 10
5 <10
False
-------------------------------------------------------------------------------------------------------------
Side Lengths of 15, 7 , &8
7+8=15
15 = 15
False
-------------------------------------------------------------------------------------------------------------
Side Lengths of 1,4,&3
1+3>4
4=4
False
-------------------------------------------------------------------------------------------------------------
Side Lengths of 8,9,&4
8+4>9
12>9
True
-------------------------------------------------------------------------------------------------------------
Side Lengths of 6,7,&1
1+6=7
7=7
False
-------------------------------------------------------------------------------------------------------------
Kavinsky
When the population mean and standard deviation are known, what distribution is used for the analysis of the sample?.
When the population mean and standard deviation are known, you use the standard normal distribution
How to determine the distribution?There are several probability distributions; these include
Normal distributionPoisson distributionChi square distributionBinomial distributionEtcOf all these distribution, only the standard normal distribution can be used when the population mean and standard deviation are known,
Note that it is also referred to as the z-distribution
Read more about probability distributions at:
https://brainly.com/question/24756209
If the slope of a line is -6, does the line rise (from left to right), fall (from left to right), horizontal or vertical?
Answer:
it falls left to right horizontal
pls give brainlyist
Step-by-step explanation:
Answer:
The line will fall (from left to right).
Step-by-step explanation:
If the slope of any line is negative then that line will go downwards or fall (from left to right). While if the slope were to be positive, that would mean the line will rise (from left to right).
Here is a picture to justify my answer ⤴⤴⤴
Hope this helps you :)
there are 20 students in mr.clarks fourth grade class there are 5 times as as many students in the entire fourth grade class as there are in mr.clacks. which equation can be used to determine the number of students,n, in the entire fourth grade?
Answer:
there are 20 students in mr.clarks fourth grade class there are 5 times as as many students in the entire fourth grade class as there are in mr.clacks. which equation can be used to determine the number of students,n, in the entire fourth grade?
n= 20(5)
100 kids in the fourth grade
or
there are 140 kids in the 4 th grade
Step-by-step explanation:
the equation is n=20(5)
because 20(5) is the same as 20×5 so that 8s the equation
The figure shows a person estimating the height of a tree by looking at the top of the tree with a mirrow. Assuming that both the person and the tree form right angles with the ground, which of the following proportions can be use to estimate the height of the tree
Select the graph that represents h = -16t^2+ 80.
Answer:
Attach the graph options so i can help...
Step-by-step explanation:
Which of the following reveals the minimum value for the equation 3x2 + 18x + 15 = 0?
can u give me a step by step
Answer:
Step-by-step explanation:
I have no idea
Answer:
3(x+3)^2=12
Step-by-step explanation:
3x^2-18x+15
(3x^2+18x)+15
3(x^2+6x)+15
3(x^2+6x+9)+15-27
3(x+3)^2-12
3(x+3)^2=12
Hope this helps!
Please mark as brainliest! Thanks!
73 in.
55 in.
b
What is the length of the missing leg? If necessary, round to the nearest tenth.
b =
inches
Answer:
48 (rounded to 10).....
Consider f(x) = bx. which statement(s) are true for 0 < b < 1? check all that apply. the domain is all real numbers. the domain is x > 0. the range is all real numbers. the range is y > 0. the graph has x-intercept 1. the graph has a y-intercept of 1. the function is always increasing. the function is always decreasing.
The true statement for f(x)=b^x is the function is always decreasing function.
We have given,
f(x)=b^x where 0<b<1
What is the domain?Domain is all possible values of x for which any function is defined
We can select any values of x for which function
It will be defined for all real x
So, the domain is [tex](-\infty,\infty)[/tex]
The range is all possible values of y for which x is defined
we are given that b is positive
The value of the function will always be positive
So, the range is [tex](0,\infty)[/tex]
y>0
The x-intercept:
Set f(x)=0 and then we can solve for x
f(x)=b^x=0
x is undefined
The x-intercept does not exist
Increasing or decreasing:
Since, 0<b<1
The b is a positive value less than 1
As we increase the value of, [tex]b^x[/tex] will keep decreasing
This is decreasing function
To learn more about the function visit:
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Use the triangle to answer the question.
ul
diagram not drawn to scale
4
What is the length of the side labeled x?
Ο Α. V11
OB. V21
Oc 11. D.21
The length of the side labeled x is Option B. [tex]\sqrt{21}[/tex].
Pythagorean theorem.Pythagorean theorem is a basic principle to be applied when determining the unknown side of a given right triangle when the values of two sides are given. The theorem states that;
/Hyp/^2 = /Adj/^2 + /Opp/^2
From the triangle given, we have;
/Hyp/^2 = /Adj/^2 + /Opp/^2
x^2 = 4^2 + ((5)^1/2)^2
= 16 + 5
= 21
x = 21^1/2
= [tex]\sqrt{21}[/tex]
The length of the side labeled x is [tex]\sqrt{21}[/tex]. Option B.
Learn more about Pythagorean theorem at https://brainly.com/question/16176867
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