how do i reflect over the line x=-1 and y=2?
Answer:
Hope this helps!!!
Step-by-step explanation:
Reflecting around x=1 never touches the y coordinate, and the x coordinate transforms - what was the distance to x=1 becomes the distance on the other side. In other words, if a point were at x=π, it's distance to x=1 was π−1 so the new location is π−1 to the left of x=1, i.e. 1−(π−1)=2−π.
How many tryouts weighed MORE THAN 450 grams?
Answer:
11
Step-by-step explanation:
Basically count each doubt that is on the number line with a value greater than 450
Answer:
11 trouts
Step-by-step explanation:
Count the dots that are after the 450-gram mark.
Trouts that weigh 452 = 5
Trouts that weigh 454 = 2
Trouts that weigh 456 = 2
Trouts that weigh 458 = 1
Trouts that weigh 460 = 1
Then, add everything up.
5 + 2 + 2 + 1 + 1 = 11
So, 11 trouts weigh more than 450 grams.
Have a wonderful day!
A Labrador retriever club has 130 members: 65 black Labs, 44 golden Labs, and 21 chocolate Labs. Pablo is going to perform a chi-square goodness-of-fit test to see if the distribution of Labrador retrievers in the club is the same as the distribution nationally. Pablo is going to test his sample against the following null hypothesis, which reflects the national distribution. H0:pblack=0.53,pgolden=0.39,pchocolate=0.08 If the distribution of Labrador retrievers in the club were to match that of the national average, how many of each type of Labrador retriever would Pablo expect to see in his club? Labrador Type Black Golden Chocolate Expected Counts 68.9 50.7 10.4
Answer:
Step-by-step explanation:
Ap classroom
Is (3, –2) a solution for the following system? Yes or No x + y = 1 2x + 3y = 1
Answer:
NO
Step-by-step explanation:
Plugging in 3 for X and -2 for Y
X + Y = 12X _ 3Y = 1
3 + -2 = 12*3 + 3 * -2 = 1
1 = 36 + 3 * -2 = 1
1 = 36 + -6 = 1
1 = 30 = 1
So NO, (3, -2) is not a solution.
1. The U.S. Department of Agriculture reported a random sample of 36 Americans consumed an average of 69 gallons of carbonated beverages per year. Assume that the population standard deviation is 20 gallons. Find the 95% confidence interval for the number of gallons of carbonated beverages consumed per year by Americans.(round the final answer to 3 decimal places.)
Answer:
Hence, the confidence interval is [tex](63.517,74.483)[/tex] gallons.
Given :
Sample size[tex]=36[/tex]
Sample mean [tex]=69[/tex] gallons
Standard deviation [tex]=20[/tex] gallons
So, the standard error [tex]=\frac{20}{\sqrt{36}}=20/6=3.33[/tex]
Confidence level [tex]=95\%[/tex]
To find :
The [tex]95\%[/tex] confidence interval for the number of gallons of carbonated beverages consumed per year by Americans.
Explanation :
[tex]\because[/tex] Confidence interval [tex]=(\text{Sample mean}-\text{margin error},\text{Sample mean}+\text{margin error})[/tex]
Margin error [tex]=Z_{\frac{\alpha}{2}}\times\frac{\sigma}{\sqrt{n}}[/tex]
Here, [tex]\alpha=1-95\%=1-0.95[/tex]
[tex]\Rightarrow \alpha=0.05\Rightarrow \frac{\alpha}{2}=0.025[/tex]
[tex]Z_{\frac{\alpha}{2}}=Z_{0.025}=1.645[/tex] from the [tex]z-[/tex]table.
So, Margin error [tex]=Z_{\frac{\alpha}{2}}\times\frac{\sigma}{\sqrt{n}}[/tex]
[tex]=1.645\times\frac{20}{6}=1.645\times3.33[/tex]
[tex]=5.483[/tex]
Therefore, the confidence interval is:
[tex](69-5.483,69+5.483)[/tex]
[tex]=(63.517,74.483)[/tex] gallons.
Last year mrs Bowen's read 289 books. Mrs Jackson's class read 315 book. About how many books did both classes read?
Answer:
604
Step-by-step explanation:
add them together using collum method
20 lb >, < , =304 OZ
Can someone please help me I will mark u brilliant for both answers
Step-by-step explanation:
Athe question is wrongABCD FECG
B
5
х
6
100
5
A
60°
o
F
4 120°
G
D
x = [?]
Answer:
12
Step-by-step explanation:
The required value of x is 12
Data from the picture
ABCD≈FECG
AB = x FG= 4
BC = 10 EF = 6
EC = 5
Quadrilateral is four sided shape as given in the picture in question.
Since ABCD is congruent to FECG
by property
AB/EF = BC/EC
= x/6=10/5
x = 2 x 6
x = 12
Thus, the required value of x = 12.
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please help me!! its due at 8pm
Answer:
1. 1,538.60 cm³
2. 314.00 m³
Step-by-step explanation:
1. Given:
Diameter = 14 cm
Radius (r) = ½(14) = 7 cm
height (h) = 10 cm
π = 3.14
Volume of cylinder = πr²h
Plug in the values
V = 3.14*7²*10
V = 1,538.60 cm³
2. Given:
Radius (r) = 5 m
Height (h) = √(13² - 5²) = √144 = 12 m
π = 3.14
Volume of cone = ⅓πr²h
Plug in the values
V = ⅓*3.14*5²*12
V = 314.00 m³
For the figure shown on the right, find the value of the variable and the measures of the angles.
Q
(2x+38)
(x-10)
X = 38
mZP
ZP-O
What would be the m
Answer:
38-10=28
Step-by-step explanation:
The angle labeled is x-10.
Since we know x is 38, subtract!
38-10=28
Mark brainliest please!
Which figures will have a volume that is greater than 100 cubic units? Select two options. a rectangular prism with dimensions of 4 by 5 by 4 a rectangular prism with dimensions of 2 by 12 by 6 a rectangular prism with dimensions of 1.5 by 8 by 8 a triangular prism that is 6 long and has a triangular face with a base of 4 and a height of 12 a cube with side length 4.
Answer:
Options-2
Option-4
Step-by-step explanation:
two options have Volume greater than 100 units³
Options-2:remember the formula of Volume of rectangular prism
l×w×hgiven that,
width:2length:12height:6thus substitute:
2×12×6simplify multiplication:
144 units³since 144>100 it's one of our answer
Option-4:remember the formula of triangular prism
½×b×h×lgiven:
b:4h:12l:6Thus substitute:
½×4×12×6simplify multiplication:
144since 144>100 it's our answer
the other options don't satisfy the condition
The rectangular prism with dimensions of 2 by 12 by 6 and the cube with a side length of 4 have volumes greater than 100 cubic units.
What is a prism?A prism is a three-dimensional object.
There are triangular prism and rectangular prism.
We have,
The two figures that will have a volume greater than 100 cubic units are:
A rectangular prism with dimensions of 2 by 12 by 6
Volume = length x width x height
= 2 x 12 x 6
= 144 cubic units
A cube with a side length 4
Volume = side x side x side
= 4 x 4 x 4
= 64 cubic units
Therefore,
The rectangular prism with dimensions of 2 by 12 by 6 and the cube with a side length of 4 have volumes greater than 100 cubic units.
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Round to the Nearest tenth
Answer:
a. x=4.2, y=3
Step-by-step explanation:
We know the degrees of the two angles: Right angle (90 degrees) and 45 degrees.
The sum of the interior angles of a triangle is equal to 180 degrees, so the unknown angle is 45 degrees.
The two angles below are both 45 degrees, indicating that the side length is also 3.
So y is equal to 3, the answer can only be a.
PLEAS HELP!!! The function f(x) = 500(0.75)^x represents the amount of a 500-mg dose of
medication remaining in a patient's system x number of hours from the time the patient
took the medication. Which percent is the rate of decrease of the medication?
A. 75%
B. 25%
C. 7.5%
D. 2.5%
the answer is b
cccxcxcxcxcxzczczxc
The percentage of the rate of decrease in the medication will be 75%. Option A is correct.
What is an exponential function?The exponential function is characterized as a function that increases quickly and whose value is always positive. With the exponent y = aˣ, where a is the constant and a>1.
It is given that the function is,f(x) = 500(0.75)ˣ. The number x represents the number of hours since the patient took their medication.
f(x) = 500(0.75)ˣ
Compare the function with the standard function as
y=baˣ
Where b is the constant value, a is the percent of the rate of decrement and x is the time period,
The value of a for the given function will be 0.75. The value is in percentage form and can be written as,
=0.75 ₓ 100
=75%
Thus, the medication's rate of decline will be 75%. Option A is correct.
Learn more about the exponential function here:
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PLEASE HELP! IT’S 40 POINTS! What is the area of this octagon?
A. 72 cm2
B. 59 cm2
C. 42 cm2
D. 38 cm2
E. 31 cm2
Answer:
B) 59 cm²
Step-by-step explanation:
4x8=32
2x3=6
3x7=21
32+6+21=59 cm²
A state trooper temp track of the number of speeding ticket he gave out each week over the course of seven weeks in the table below 1 38 2 33 3 51 5 57 6 38 7 40 which of the following statements best describes the data in the table
Answer:
B: The center of data is shown by the mean, which is 43.
Step-by-step explanation:
Add up all the digits (33+38+38+40+44+51+57)/7=43 the mean. The mean is always teh center of data so it's B. Hope this helps.
42 42 52 53 58 58 61 what is the mean
Answer:
exact: 366/7
approximate: 52.3
Step-by-step explanation:
mean = (42 + 42 + 52 + 53 + 58 + 58 + 61)/7 = 366/7 = 52.3
Write an equation for a circle centered at (2,0) and tangent to y=x+2
9514 1404 393
Answer:
(a) (x -2)² +y² = 8
Step-by-step explanation:
The distance between the center and the point of tangency at (0, 2) is ...
d = √((x2 -x1)² +(y2 -y1)²)
d = √((0 -2)² +(2 -0)²) = √8
This is the radius of the circle. The circle centered at (h, k) with radius r has equation ...
(x -h)² +(y -k)² = r²
For the given values (h, k) = (2, 0) and r = √8, the equation of the circle is ...
(x -2)² +y² = 8
_____
Additional comment
The tangent line has a slope of 1. The radius to the point of tangency will be perpendicular, so will have a slope of -1. The point of tangency will be where the lines y=x+2 and y=-(x-2) meet, at the point (0, 2).
Above, we found the radius using the distance formula. You can also find it using the "distance to a line" formula:
d = |ax +by +c|/√(a²+b²)
where d is the distance from (x, y) to line ax+by+c = 0. Our given line is x-y+2=0, so the distance from point (2, 0) to the tangent line is ...
d = |1(2)-1(0)+2|/√(1²+(-1)²) = 4/√2 = √8
3sin²60°+3/4cot²30°-2cosec²60°-3/4tan²30°=19/12{Full process , please^^}
Answer:
3( root 3 /2)^2 + 3/4 (root 3 )^2 - 2(2/ root 3) ^2 - 3/4 (1/root3)^2
= 3 ×3 /4 + 3 × 3 /4 - 2 ×4 /3 - 3/4 × 1/3
= 9/4 + 9/4 -8/ 3 - 1/4
= 9/4 + 9/4 - 1/4 - 8/3
= 17/4 - 8/3
=( 17 × 3 - 8 × 4 )/12
= (54 -32)/12
= 19 /12
PLS HELP yxyx 115 x Х y=[ ? ]
Answer:
y=25
Step-by-step explanation:
the straight line is 180
so, 180-115=65
so, now we know x=65
triangle =180
180-65-90=25
19.*
The average number of minutes a person spends watching television is represented by
y = 800x. In this equation, x is the number of weeks and y is the number of minutes.
Which statement is supported by the equation?
(Lesson 5)
A In 6 weeks, a person spends an average of 4,200 minutes watching television.
B A person spends 800 minutes watching television in 1 month. (1 month = 4 weeks)
C In 5 weeks, a person spends an average of 160 minutes watching television.
DA person spends 41,600 minutes watching television in 1 year. (1 year = 52 weeks)
Step-by-step explanation:
Miko’s family drove at a constant speed as they left home and traveled to the restaurant where they stopped for lunch. Does the relationship between hours that past x and the distance traveled y represent a proportional relationship? Explain why or why not?
What is the correct ratio? *
Answer:
The correct ratio is 40/41
Add or subtract. Th S. 29 + 46
Answer:
Add I think
If there is a plus sign shouldnt it be adding
The original price of a pair of shoes is $60. The sale price is 25% off the original price. What is the amount off of
the original price?
If the value of the complementary angles are 5x and 20, what is the value of x? ANSWER QUICKLY PLS
Answer:
4 5x4 =20
Step-by-step explanation:
Answer:
wouldn't it be 4?
Step-by-step explanation:
1) Which choice best represents the height of a clothes dryer. A 1 meter B kilometer c1 centimeter D. 1 millimeter
A photo of an ant in a science book is increased to 645% as large as the actual size. If the ant is 18 millimeters, what is the size of the ant in the photo?
If IQ Scores are normally distributed with a mean of 100 and a standard deviation of 15. If you randomly selected a person
from Montana, what is the probability, rounded to the hundredth, that a person will have an IQ less than 79?
Remember to use the percent sign in this question
Answer:
8%
Step-by-step explanation:
P(X<79) = normalcdf(0,79,100,15) = 0.0807567112 ≈ 0.08 ≈ 8%
Therefore, the probability, rounded to the hundredth, that a person from Montana will have an IQ less than 79 is 0.08 or 8%
Part 3. Use side to determine if the triangles in each pair are similar. If so, complete the similarity statement. NO LINKS.!!!!
9514 1404 393
Answer:
1) Not Similar
2) Not Similar
Step-by-step explanation:
1) The side length ratios, shortest to longest, are ...
VU : UW : WV = 27 : 39 : 52 (reduced)
DC : CE : ED = 12 : 19 : 24 (reduced)
The side length ratios are different, so the triangles are NOT SIMILAR.
__
2) The side length ratios, shortest to longest are ...
MK : KL = 13 : 19 (reduced)
HK : KG = 6 : 9 = 2 : 3 (reduced)
The side length ratios are different, so the triangles are NOT SIMILAR.
Answer:
2) The side length ratios, shortest to longest are .. MK : KL = 13: 19 (reduced) HK : KG = 6:9 = 2:3 (reduced) The side length ratios are different, so the triangles are NOT SIMILAR.
What is the mode of the data?
8
3
7
5
the mode of this data is 7
Answer:
The mode of this data is 5.
Step-by-step explanation:
5 has more x