Answer:
i dont know sorry
Step-by-step explanation:
I need help, please. I will try to give brainliest!!!
Answer:
Step-by-step explanation:
The diameter is 24 cm. Find the
length of arc CD
Answer:
s = 4π Exact answer
s = 12.56 Decimal approximation
Step-by-step explanation:
cicrumference = πd
s = (∅/360)(πd)
s = (60/360)(π * 24)
s = 4π Exact answer
s = 4 * 3.14
s = 12.56 Decimal approximation
The side of a square is 7 m with a possible error of 0.05 m. Use differentials to approximate the maximum relative error in calculating the area of the square. Remember that the area of a square with side length s is A
Answer:
Step-by-step explanation:
Given :
Length of the side of a square = 7 m
Possible error = 0.05 m
Area of the square of side s is [tex]$A=s^2$[/tex]
Therefore, [tex]$\frac{dA}{ds} = 2s$[/tex]
or dA = 2s . ds
dA = 2 x 7 x 0.05
= 0.7
Therefore, the percentage error is given by :
[tex]$=\frac{dA}{A}\times 100$[/tex]
[tex]$=\frac{0.7}{49}\times 100$[/tex]
= 1.4 %
A drone is flying at the maximum allowed altitude of 400 ft. The angle of depression to the landing pad is 65°. What is the horizontal distance from the drone to the landing pad? Round your answer to the nearest foot. Dashed horizontal line y equals 400 is drawn. A 65 degree angle of depression from begin ordered pair 0 comma 400 end ordered pair is drawn down to the horizontal axis. Enter your answer in the box.
Answer:
187 feet
Step-by-step explanation:
Tan = opp/adj
tan65 = 400/adj
adj = 400/ tan65
adj = 186.523063261999437
Rounded
187 feet
The equation below represents the trend line of a scatter plot showing the hours spent studying versus science test scores. y = 6.5 x + 42.4
The equation below represents the trend line of a scatter plot showing the hours spent studying versus math test scores. y = 7.2 x + 34.7
If a student does not study for either test, on which test should the student expect the higher score?
A) on the science test because the rate of change is greater
B) on the math test because the rate of change is greater
C) on the science test because the y-intercept is greater
D) on the math test because the y-intercept is greater
Answer: C: on the science test because the y-intercept is greater
Step-by-step explanation: I got the question right on edge.
Answer:
C
Step-by-step explanation:
Which of these describes a unique polygon?
Select the correct choice.
A
A quadrilateral with 4 right angles
B
A triangle with angles 30°, 80°, and 70°
С.
A triangle with side lengths 7 cm and 8 cm and a 70° angle
A triangle with each side length 5 inches
Answer:
The last option is unique.
Step-by-step explanation:
A triangle with each side length 5 inches - there's only one of these.
Andy flipped a coin once and rolled a six-sided number cube numbered 1 through 6
Answer:
possiblity of getting any number is 1/6
Step-by-step explanation:
Three times a number is 42. What is the number? 12 14 16 39
Answer:
14
Step-by-step explanation:
If you do 42/3 you get 14. Which to check your answer you can do 14 x 3 and you would get 42. Hope this helps.
The answer is 14.
I am answering dis for you to give da other person brainliest!
Your local dry cleaners is running a special. The dry cleaner is offering a 13% discount for any drop off that is over $40. Also, they are running a neighborhood special of an additional 5% off. Given this information, determine the decay factor corresponding to each percent decrease.
a.
34.8; 33.06
c.
0.87; 0.95
b.
0.384; 0.3306
d.
87; 95
Answer:
a. 34.8; 33.06
Step-by-step explanation:
The computation is shown below;
since in the question it is mentioned that that if the price is $40 so if offered the 13% discount
So the 13% discount on $40 is
= $40 - 13% of $40
= $34.80
Now additional 5% is also provided
So,
= $34.80 - 5% of $34.80
= $33.06
Therefore the first option is correct
In the refrigerator there are 3 opened milk bottles. One bottle
contains 3/10 of a gallon, and a second bottle also contains
3/10 of a gallon. If altogether there is 1 3/10 gallons in the
refrigerator, how much milk is in the third bottle?
Based on what you know now, how are linear and exponential functions alike?
Answer:
They're similar in that they both have to maintain a steady rate of rise as they grow. While graphing, you can't adjust the slope or exponent after traveling up a graph.
Step-by-step explanation:
Find the z-score for 273 given a mean of 258 and a standard deviation of 5
Answer:i think it would be 5 but 382
Step-by-step explanation:
The the z-score for given mean and standard deviation is 3.
What is standard deviation?Standard deviation is the positive square root of the variance. Standard deviation is one of the basic methods of statistical analysis. Standard deviation is commonly abbreviated as SD and denoted by 'σ’ and it tells about the value that how much it has deviated from the mean value.
Given that, x=273, μ=258 and σ=5
We know that, Z=(x-μ)/σ
Z=standard score, x=observed value, μ=mean of the sample and σ=standard deviation of the sample
Now, Z=(273-258)/5
Z=15/5
Z=3
Therefore, the z-score is 3.
Learn more about the standard deviation visit:
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find the slope of the line through each pair of points (19,-2) (-11,10)
Answer:
[tex]\huge\boxed{-\frac{2}{5}}[/tex]
Step-by-step explanation:
The slope of a line can be determined from two points via the slope formula. This is usually defined as the change in y divided by the change in x. It’s commonly represented using this formula:
[tex]\displaystyle \frac{\Delta y}{\Delta x}[/tex]Where [tex]\Delta[/tex] represents “change in.”
The slope is basically just saying the rate of increase/decrease a function has when x increases by 1 - how much does y change when x increases by 1? We can find this by taking larger values and dividing by the rate at which we took the larger values. This derives the slope formula.
We can find the change in y and x in this function by analyzing the two points given. If we look at the change between each point, we can get the change since this is a line and thus has a constant slope.
The change in y will be 12. This is because from -2 to 10 is 10 units - [tex]10 - (-2) = 12[/tex] The change in x will be -30. This is because from 19 to -11 is -30 units - [tex]-19 -11 = -30[/tex]Now that we have our change in x and y, we can substitute these values into the slope formula.
[tex]\displaystyle \frac{\Delta y}{\Delta x}[/tex] [tex]\displaystyle \frac{12}{-30}[/tex] [tex]\displaystyle -\frac{12}{30}[/tex] Simplify - divide numerator and denominator by 6 [tex]\displaystyle -\frac{2}{5}[/tex]Therefore, the slope of this line is [tex]-\frac{2}{5}[/tex].
Hope this helped!
Sharon wants to put lace around the edge of the circular mirror shown.
12 in.
C = TD, where C is the circumference, and D is the diameter. Use 3.14 for the value of .
How many inches of lace will Sharon need to cover the edge of the mirror exactly once?
A. 3.82 in.
B. 18.84 in.
C. 37.68 in.
D. 75.36 in.
Answer:
37.68in
Step-by-step explanation:
Circumference = πd
d is the diameter = 12in
To get the number of lace that will cover we will find the circumference
C = 12 * 3.14
C = 37.68in
Hence the amount of lace needed is 37.68in
Need help fast will give brainliest
Answer:
1) x=14, y=7
2) x=2, y=7
3) SAS (Side-Angle-Side)
Step-by-step explanation:
1) x-4=y+3
x=2y
substitute
2y-4=y+3
2y-y=3+4
y=7
x-4=7+3
x=10+4
x=14
ANSWER = x=14, y=7
2) y+5=2y-x
y+x=x+7
From the second equation, we can immediately see that y=7, so
7+5=2(7)-x
12=14-x
x=14-12
x=2
ANSWER = x=2, y=7
Solve for x. Round to the nearest tenth of a degreee, if necessary
Using Trig to find angles
Answer:
63
Step-by-step explanation:
Tan 0= opposite÷ adjacent
Tan 0= 6.7 ÷ 3.4
Tan 0 = 1.97
V= 63.09
V = 63
Researchers conduct a study to evaluate the level of pollution present in a river. They selected several locations along the river and then take a sample of water from each location.
What is the population under study?
A. The water in the river
B. River water in the county where researchers are working
C. Water in a lake fed by the river
D. The water collected by researchers
Answer:
a
Step-by-step explanation:
Answer:
a
Step-by-step explanation:
I will mark you brainlist!
Answer:
1) D
2) B
Step-by-step explanation:
D) 1. heads
1. tails
2. heads
2. tails
1/3
How many sides do 2 octagons, 4 pentagons, and 5 triangles have in all?
Answer: 51
Step-by-step explanation:
2 octagons have 16 sides because an octagon has eight sides. So, 8x2=16.
4 pentagons have 20 sides because a pentagon has 5 sides. So, 4x5=20.
5 triangles have 15 sides because a triangle has 3 sides. So, 5x3=15.
In all, 16+20+15= 51
What is remainder one as a fraction?
Answer:
We have a remainder of 1, which we want to write as a fraction. We divide the 1 by 3. The fraction is 1 / 3 .
Step-by-step explanation:
Answer:
We have a remainder of 1, which we want to write as a fraction. We divide the 1 by 3. The fraction is 1 / 3 .
Step-by-step explanation:
help please?
it’s overdue
Answer:
The surface area is 76 square yards.
Step-by-step explanation:
A = 2(wl + hl + hw)
2 · (2 · 4 + 5 · 4 + 5 · 2)
76
Find the following angle measures. mAngleEAD = ° mAngleCAB = °
Answer:
Step-by-step explanation:
Oh the good ol CAB and EAD angles, well know angles from Greek lore, about the monsters CAB and EAD that were at opposing sides to the battle of Mythical Math, In the story they fight for 100 years.. so that's what the mythical angle of CAB was know as, While EAD was very hot headed and would fight at the drop of a hat, so he was known as the 45° centigrade fighter. Yes that's centigrade , not Celsius. while most people think that Centigrade and Celsius are the same thing, it's recently been discovered that Centigrade is a bit hotter. so you can add a few degrees to most angles when you are talking about EAD angles. not less the 3 but no more than 7 , so both of these angles can't really be known .. mostly b/c you didn't put a picture that everyone could see :/ So you got the Greek lore answer, that makes zero sense, just like your question :DDDDD
Answer:
29 and 119
Step-by-step explanation:
EDGE 2021 PLEASE GIVE ME BRAINLIEST
A square pyramid has a base that measures 8 inches on each side.The height of the pyramid is 15.5 inches. Determine the volume of the pyramid.
Answer:
Step-by-step explanation:
Volume = 1/3 * B * h
B = 8 * 8 = 64
h = 15.5
Volume = 1/3 * 64 * 15.5
Volume = 2976 cu in
What is0.54¯¯¯¯ expressed as a fraction in simplest form?
Enter your answer in the box.
Answer:
0.54 as a fraction is 54/100 and simplified it would be 27/50
Answer:
27 / 50
Step-by-step explanation:
You can find this out by re-stating it as 54 / 100 and removing common factors between the numerator and denominator. In this case, only the number 2 can be factored out:
54 / 100
= 27 / 50
27 is a perfect cube (three cubed), and 50 is not divisible by 3, so we can't factor it further.
Find the sum of the first 10 terms of the following series, to the nearest integer. 10, 40,160
Answer:3495250
Step-by-step explanation:
~geometric sequence
common ratio: r=4
formula: Sn=a1(1-r^n)/1-r
Sn=10(1-(4)^10)/1-4
=-10485750/-3
=3495250
The sum of the first 10 terms of the following series, to the nearest integer. 10, 40,160 would be 3495250.
What is the sum of terms of a geometric sequence?Let's suppose its initial term is a multiplication factor is r
and let it has total n terms, then, its sum is given as:
[tex]S_n = \dfrac{a(r^n-1)}{r-1}[/tex]
(sum till nth term)
The given geometric sequence is
10, 40,160
common ratio: r=4
a = 10
n=10
We know that
[tex]S_n = \dfrac{a(r^n-1)}{r-1}[/tex]
[tex]S_{10} = \dfrac{10(4^{10}-1)}{4-1}\\S_{10} = \dfrac{10\times 1048575}{3}\\S_{10} = \dfrac{10485750}{3}\\S_{10} = 3495250[/tex]
Learn more about sum of terms of geometric sequence here:
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THIS IS A MATH QUESTION ON DIFFERENT TYPES OF TRIANGLES TY :)
1. This triangle is scalene.
2. This triangle is isosceles. Two angles are equal.
3. This triangle is equilateral, all sides are equal.
4. This triangle is equilateral, all angles are equal.
Answer:
Hello!
First one: Scalene
Second one: Isosceles
Third one: Equilateral
Fourth one: Equilateral
Hope that helps!
The length of a rectangle is 5 cm longer than its width.
If the perimeter of the rectangle is 42 cm, find its area.
Answer:
The area is 104
Step-by-step explanation:
Length: 5 + x
width: x
(5+x)*2=10+2x
x*2=2x
2x+10+2x=42
10+4x=42
-10 -10
4x=32
/4. /4
x=32
5+8=13
13*8=104
Evaluate the expression 122 – (9 – 7)3 +6.
122 – (9 - 7) + 6 = 122
+6
Answer:
Im kinda confuse but (9 - 7)3 + 6 should be 14
Step-by-step explanation:
2 tables 8 chairs. 1 5/8 quarts paint for 2 tables and 2/3 quarts paint for 8 chairs. How many total quarts paint should you bring for this furniture
Answer:
2 7/24
Step-by-step explanation:
1 5/8 + 2/3
1 15/24 + 16/24
1 31/24 = 2 7/24
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
What is the value of the expression below?
-7(-2)
Answer:
14
Step-by-step explanation:
-7*-2=14