Answer:
Step-by-step explanation:
"Inversely proportional to x" in this situation is represented by a = k/x.
Find k:
Let a = 15 and x = 25, then calculate k:
15 = k/25)
Multiplying both sides by 25 yields k = 15(25), or k = 3/5
3
and so a = -----------
5x
please help!!!! trigonometric ratios !!!
Answer:
X=47.68degree
Step-by-step explanation:
tanx=56/51
x=tan^(-1)(56/51)
=47.68
Answer:
What do we know?
SOH CAH TOA
SOH stands for opposite + hypotenuse
CAH stands for adjacent + hypotenuse
TOA stands for opposite + hypotenuse
We know from above: the opposite and the hypotenuse
tanx=56/51
x=tan^(-1)(56/51)
=47.68
-hope this helps you get it correct!, if u need anymore help just ask
Find the area of the figure. Round to the nearest tenth.
HELP ASAP!!
Answer:
A
Step-by-step explanation:
f=1/2(a+b)×h1/2(1.6+4)×22.8×25.6 since to round off 5.6 to the nearest tenth consider the hundredths' value of 5.6 which is 0. therefore the tenths value of 5.6 remains 5.6After 5 years, Marcel's account earned $900 in interest. If the interest rate (in decimal form) is 0.06, how much did Marcel initially invest?
Answer:
$3000
Step-by-step explanation:
I= PRT÷100
where,
I = interest = 900
T= 5
R/100 = 0.06
P = ?
I= PRT/100
900= P × 5 × 0.06
P = 900÷ 0.3
P= 3000
According to the National Weather Service, the average monthly high temperature in the Dallas/Fort Worth, Texas area from the years of 2006-2008 is given by the following table:
Month
Average Maximum Monthly Temperature
Jan
48.1
Feb
50.9
Mar
62.4
Apr
67.0
May
76.5
Jun
83.9
Jul
86.8
Aug
88.1
Sep
79.2
Oct
69.9
Nov
59.5
Dec
49.6
Plot the data on a scatter plot. Produce a sine regression model for the data. Round the values for a, b, c, and d to the nearest 0.001. Using the sine regression model predict what the temperature would be given y(30).
a.
58.4 degrees
b.
62.3 degrees
c.
76.8 degrees
d.
86.0 degrees
Please select the best answer from the choices provided
The sine regression model is [tex]y =20.077 \sin(0.500x- 1.959) + 67.577[/tex], and the value of y(30) is 76.8 degrees
What is a regression model?A regression model is used to determine the association and correlation between two variables
Using a graphing calculator, the sine regression model of the dataset is:
[tex]y =20.077 \sin(0.500x- 1.959) + 67.577[/tex]
To calculate y(30), we substitute 30 for x in the equation.
So, we have:
[tex]y =20.077 \sin(0.500 * 30- 1.959) + 67.577[/tex]
Evaluate the product
[tex]y =20.077 \sin(15- 1.959) + 67.577[/tex]
Evaluate the difference
[tex]y =20.077 \sin(13.041) + 67.577[/tex]
Evaluate the sine value
[tex]y =20.077 *0.4570+ 67.577[/tex]
Evaluate the product
[tex]y =9.1752+ 67.577[/tex]
Evaluate the sum
[tex]y =76.7522[/tex]
Approximate
[tex]y \approx 76.8[/tex]
Hence, the sine regression model is [tex]y =20.077 \sin(0.500x- 1.959) + 67.577[/tex], and the value of y(30) is 76.8 degrees
Read more about regression models at:
https://brainly.com/question/17844286
Write an equation of the circle with center (-2, 6) and radius 7.
Answer:
( x + 2 )² + ( y - 6 )² = 49
Step-by-step explanation:
→ Write the form of an equation of a circle
( x - a )² + ( y - b )² = r²
→ Substitute in the centre remembering to switch the signs
( x + 2 )² + ( y - 6 )² = r²
→ Substitute in radius
( x + 2 )² + ( y - 6 )² = 49
PLEASE HELP MEEEEEEEE IM BEGGING
Answer:
30 degrees
Step-by-step explanation:
it is 30 degrees
can I PLEASE just get someone to help me...
Answer:
the picture is blurry.
Step-by-step explanation:
What is the value of y in the equation 4(5y − 8 − 2) = 145 − 15? (4 points)
a
8.5
b
9.7
c
10.5
d
42.5
Step-by-step explanation:
[tex]4(5y - 8 - 2) = 145 - 15 \\ 4(5y - 10) = 130 \\ 5y - 10 = 130 \div 4 \\ 5y - 10 = 32.5 \\ 5y = 32.5 + 10 \\ 5y = 42.5 \\ y = 42.5 \div 5 \\ = 8.5 \: or \: 8\frac{1}{2} [/tex]
Answer:
the answer is 8.5
Step-by-step explanation:
Pls help! I am really stuck.
Find the domain of this graph.
Answer:
8
Step-by-step explanation:
The domain is from the points (-4,0) through (4,0).
Triangle MNO is transformed to produce triangle PQR. What transformations guarantee triangles MNO and PQR are congruent
Answer:
C, D, and E are corrects.
Step-by-step explanation:
Two plane figures are congruent if and only if one can be obtained from the other by a sequence of rigid motions. The rigid transformations are reflection, rotation, and translation. The image from these transformations will not change its size or shape.
A dilation is a nonrigid transformation that can produce enlarged or reduced images from a given pre-image.
Therefore only C, D, and E are corrects.
A. a dilation, then a translation
B. a reflection, then a dilation
C. a reflection, then a rotation
D. a rotation, then a translation
E. a translation, then a reflection
The transformations guarantee triangles MNO and PQR are congruent should be considered is option C, D, and E.
What is congruent?
The two plane figures should be considered as the congruent when one should be obtained from the other via the sequence of the fixed motions. Here the right transformation could be in the form of reflection, rotation, and translation.
Also, the image arise form transformations should remain the same with respect to the size or shape.
Therefore only C, D, and E are corrects.
This is an incomplete question. Please find the options below.
A. a dilation, then a translation
B. a reflection, then a dilation
C. a reflection, then a rotation
D. a rotation, then a translation
E. a translation, then a reflection
Learn more about triangle here: https://brainly.com/question/22310382
Based on the graph to the right, describe what is happening as specifically as you can, you do
not need to measure anything accurately.
it takes less time to get to the school .-.
pls help if you understand thank you
Answer:
f(5) =7
Step-by-step explanation:
According to the graph,
since y=f(x) thus means the value of y when x=5
the answer is 7
The dot plot shows the favorite sport to play according to some middle school students chosen at random. Which statement is true according to the information in the dot plot ?
What are the options?
Answer:
B: More than 25% of the students chose football and tennis as their favorite sport to play.
Step-by-step explanation: You need to find the total, which is 50. Since it says more than 25 percent of the students chose football and tennis your answer will need to be more then 25 percent. You add football plus tennis (10+3=13). Now you set up your proportion- 50 as your whole/total, 13 as your part, and substitute you percent with a variable like (p), then 100. Cross multiply. I did a shortcut which replaces the Ice Ice Baby process, so multiply 13x100= 1300, then your product divide it by 50 ( total) 1300/50= 26. This makes the statement true.
10) What changes when a figure is
transformed by a reflection, rotation,
or a translation?
A) its area
C) its position
B) its size
D) its perimeter
Answer:
size because when a figure is squeezed, it shrinks and changes the size
Answer:
Its Position
Step-by-step explanation:
Reflection-when the shape is reflected over an axis
Rotation-when the shape is rotated around a singular point
Translation-when the shape is moved up/down or left/right
None of these change any part of the shape it just moves the shape around. :)
What relationship CANNOT be used to prove that AABC is congruent to ADEF?
Help please!!!
Answer:
D) Angle angle angle
15+26+56+19+17+19+9+19
Answer:
180
Step-by-step explanation:
Answer:
180
Step-by-step explanation:
Which of the following statements about the similarity between rectangles and squares is not true?
Both rectangles and squares are quadrilaterals.
Both rectangles and squares have two sets of parallel sides.
Both rectangles and squares have four right angles.
Both rectangles and squares have four sides of equal length.
Answer:
Both rectangles and squares have four sides of equal length
(07.08 LC)
The table below shows the values of y for different values of x:
x y
0
0
1
5
2
10
3
15
Answer:
b bro
Step-by-step explanation:
If f(x) equals X-1 which of the following is the inverse of f(x)
Answer:
40.86 28.98
Step-by-step explanation:
because if its wrong then it is racist
Mrs. King has earned a pay increase. Her starting salary
was $36,000. Her new salary is 110% of her starting salary.
What is her new salary?
Answer:
39,600
Step-by-step explanation:
Free answer
Jeylynn drew a quadrilateral on the coordinate grid shown below.
If she reflects the quadrilateral across the x-axis, what are the new coordinates of the vertices of the quadrilateral? Drag and drop four ordered pairs to the appropriate boxes for each vertex.
P᾿ =
Q᾿ =
R᾿ =
S᾿ =
Answer:
P = (-3,-2)
Q = (-3,-8)
R = (-8,-8)
S = (-8,-2)
Step-by-step explanation:
Answer:
P = (-3,-2)
Q = (-3,-8)
R = (-8,-8)
S = (-8,-2)
Step-by-step explanation:
Determine whether each point is a solution of y = 3x – 8.
a. (0, -8)
b. (6,-10) C. (-2,-2)
d. (4,4)
HELP ILL GIVE BRAINLIEST
Answer:
B and C are not the solution of y=3x-8
A and D are the solution of y=3x-8
Substitute x-values to the equation.
Remember that (x, y).
PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!
Answer:
0.25 x + 34 y equals 4 then whatever x + y = will be the next fight
Step-by-step explanation:
according according to whatever the outcome was then fill in the blank
Will give brainliest
Answer choices:
Yes
No
Answer:
No
Step-by-step explanation:
Answer:
yes
Step-by-step explanation:
A survey in one middle school bowed that 2 out of 9 students help cook meals at
home. Predict how mery art of the 774 students in the school help cook meals at
home.
Find the terminal point on the unit circle determined by
5pi4
radians.
Use exact values, not decimal approximations.
Rei is barricading a door to stop a horde of zombies. She stacks boxes of books on a table in front of the door. Each box weighs 30 kilograms, and the table with 8 boxes on top weighs a total of 310 kilograms.
The total weight W of the barricade in kilograms is a function of x, the number of boxes Rei stacks on the table.
Write the function's formula.
W, equals
Answer: The answer is W=70+30x
Step-by-step explanation: Given that Rei is barricading a door to stop a horde of zombies by satcking boxes of books on a table in front of the door.
The weight of each box is 30 kilograms and the weight of the table with 8 boxes on the top is 310 kilograms.
Therefore, the weight of the table without boxes is 70 kilograms.
Now, if 'W' is the total weight of the barricade, then it can be written as a function of 'x', the number of boxes Rei stacks on the table. The expression is as follows -
So, if 'g' denotes the weight of the table alone, then we have,
please help i don’t understand
Answer:
18.38Explanation:
since this triangle is a right-angled triangle and one its angles equals 45° then it's an isosceles right triangle which means that the side opposite 45° (the side to the left) is equal to 13 too.
so according to pythagoras theorem c = √(a²+b²)
x =√(13²+13²)
x = √(169+169)
x = √338
x ≈ 18.38
note: in the question it's mentioned to find y! and I believe it is just an error! it's about to find x and that's more resonable!
HELP!! ILL MARK BRAINLIEST
Answer:
a
Step-by-step explanation:
youre welcome
PLEASE HELP ME can someone explain and give the answer
Answer:
[tex] {eb}^{2} = {ab}^{2} + {ea}^{2} \\ {ab}^{2} = {eb}^{2} - {ea}^{2} \\ {ab}^{2} = {20}^{2} - {12}^{2} \\ ab = 16 \\ \\ {db}^{2} = {bc}^{2} + {dc}^{2} \\ {bc}^{2} = {db}^{2} - {dc}^{2} \\ {bc}^{2} = {20}^{2} - {16}^{2} \\ bc = 12 \\ \\ so \: ac = ab + bc \\ ac = 28[/tex]
