Answer:
so what is the question you got a picture
does anyone know the answer to this? REPLY QUICKLY PLZ
Answer:
I believe you multiply 18 and 6 so most likely your answer is 108 because 18 x 6 is 108
Give the exact value of the trigonometric function.
csc225°
A. [tex]\sqrt{2}[/tex]
B. [tex]\frac{\sqrt{2} }{2}[/tex]
C. [tex]-\sqrt{2}[/tex]
D. [tex]\frac{-\sqrt{2} }{2}[/tex]
Please explain your answer, I will give brainliest, thank you!
Answer:
[tex] \displaystyle \text C)\csc( {225}^{ \circ } )= - \sqrt{2} [/tex]
Step-by-step explanation:
we want to figure out the exact value of the following:
[tex] \displaystyle \csc( {225}^{ \circ} ) [/tex]
recall that,
[tex] \displaystyle \csc( \theta ) = \frac{1}{ \sin( \theta)} [/tex]
we are given [tex]\theta=225°[/tex]
substitute:
[tex] \displaystyle \csc( {225}^{ \circ } )= \frac{1}{ \sin( {225}^{ \circ} )} [/tex]
225° belongs to Q:III which we can clearly acquire from unit circle so,
[tex] \displaystyle \csc( {225}^{ \circ } )= \frac{1}{ \dfrac{ - \sqrt{2} }{2} } [/tex]
By simplifying complex fraction we get:
[tex] \displaystyle \csc( {225}^{ \circ } )= \frac{2}{ - \sqrt{ 2} } [/tex]
notice that, what we acquired isn't in the option so multiply it by √2/√2
[tex] \displaystyle \csc( {225}^{ \circ } )= \frac{2}{ - \sqrt{ 2} } \times \frac{ \sqrt{2} }{ \sqrt{2} } [/tex]
simplify multiplication:
[tex] \displaystyle \csc( {225}^{ \circ } )= \frac{2 \sqrt{2} }{ - \sqrt{ 4} } [/tex]
simplify square:
[tex] \displaystyle \csc( {225}^{ \circ } )= \frac{2 \sqrt{2} }{ - 2} [/tex]
reduce fraction:
[tex] \displaystyle \csc( {225}^{ \circ } )= - \sqrt{2} [/tex]
hence,
our answer is C
70 - q -q - 2q = 80
plz help me i don't get it
Answer:
the answer is: q = -2.5
Step-by-step explanation:
70 - q - q - 2q = 80
70 - 4q = 80
-4q = 10
q = -2.5
Enter a positive value for k that makes this statement true 20 times k is less than 20 but greater than o
Answer:
Step-by-step explanation:
If we're asked to use any positive value. It means we could have a wide variety of answer. A positive value of k that makes the equation 20k to be less than 20, yet greater than zero has to be any decimal value or a fraction, if you so wish.
As an example, if k is 0.5. Then we have
20k = 20 * 0.5 = 10, which is less than 20 and greater than zero
Again, if k is 0.9. Then we have
20k = 20 * 0.9 = 18, which is less than 20 and greater than zero.
So, you use any decimal number greater than 0, yet less than 1
Can y’all help me find the width
Answer:
Step-by-step explanation:
To find the width, you have to divide the height and length by the volume
an orange divided into 10 equal sections lilly ate 4 four sections manny and emma ate the remaing sections what fractions of the orange did manny and emma eat
Answer:
6/10 if its talking about Manny and Emma together, 3/10 if it separate. Simplified would be 3/5 and 3/10
Step-by-step explanation:
Lilly ate 4/10 sections. 10 - 4 is 6. so there are 6 sections left for them to eat.
how many cats do i have if my 53 dogs went to the mall in 65 years?
Answer:
none dogs dont live 65 years?
Step-by-step explanation:
12. From the top A of a building 125m above a street, the angle of elevation of the top B of a second
building on the opposite side is 18'36'and the angle of depression of the base of the second building
from A is 39° 48
(a) Calculate the width of the street
Answer: 150.02 m
Step-by-step explanation:
Given
The height of building A is 125 m
the angle of elevation to the top of building B is [tex]18^{\circ}36'[/tex]
and the angle of depression of the base of Building B is [tex]39^{\circ}48'[/tex]
Suppose the width of the street is x
from the figure, we can write
[tex]\Rightarrow \tan (39^{\circ}48')=\dfrac{125}{x}\\\\\Rightarrow \tan (39.8^{\circ})=\dfrac{125}{x}\\\\\Rightarrow x=\dfrac{125}{\tan 39.8^{\circ}}\\\\\Rightarrow x=150.02\ m[/tex]
Thus, the width of the street is [tex]150.02\ m[/tex]
What is the gradient of the graph shown?
Give your answer in its simplest form.
Answer:
-2
Step-by-step explanation:
I think this was the question you were talking about.
Line KJ represents a proportional relationship. Point K lies at (12,14) as shown on the graph below.
Which ordered pair could represent the coordinates of point J?
Given:
Line KJ represents a proportional relationship.
Point K lies at (12,14).
To find:
The ordered pair of the coordinates of point J.
Solution:
If y is proportional to x, then
[tex]y\propto x[/tex]
[tex]y=kx[/tex]
[tex]\dfrac{y}{x}=k[/tex]
Where, k is the constant of proportionality.
It means, the ratios of y to x for all the point in a proportional relationship are same.
Line KJ represents a proportional relationship. Point K lies at (12,14).
So, the constant of proportionality is:
[tex]k=\dfrac{14}{12}[/tex]
[tex]k=\dfrac{7}{6}[/tex]
Similarly, find the ratio of y to x for all given points.
In option a,
[tex]\dfrac{3.5}{3}=\dfrac{3.5\times 2}{3\times 2}[/tex]
[tex]\dfrac{3.5}{3}=\dfrac{7}{6}[/tex]
In option b,
[tex]\dfrac{15}{17.5}=\dfrac{15\times 2}{17.5\times 2}[/tex]
[tex]\dfrac{15}{17.5}=\dfrac{30}{35}[/tex]
[tex]\dfrac{15}{17.5}=\dfrac{6}{7}[/tex]
In option c,
[tex]\dfrac{0}{2}=0[/tex]
In option d,
[tex]\dfrac{3}{3.5}=\dfrac{3\times 2}{3.5\times 2}[/tex]
[tex]\dfrac{3}{3.5}=\dfrac{6}{7}[/tex]
The ratio of y to x of point (3,3.5) is equal to the ratio of given point K(12,14). So, the coordinates of point J are (3,3.5).
Therefore, the correct option is A.
2. Find the length of the arc shown in red. Leave
your answer in terms of pi.
A) 1.5 pi cm
B) 2.5 pi cm
C) 3.5 pi cm
D) 4.5 pi cm
Answer:
2.5 B
Step-by-step explanation:
Amanda has $227 worth of bills in her purse. She has six more $5 bills than $10 bills. The number of $1 bills is three fewer than 25 times the number of $10 bills. How many bills of each kind does Amanda have?
Answer:
There are six $5 bills and nine $10 bills
Step-by-step explanation:
x= $5 bills
y= $10 bills
x+y=15
5x+10y=120
5x+10(15-x)=120
5x+150-10x=120
-5x= -30
x=6 so y=9
Answer:
$10 = 5 $5 = 11 $1 = 122
Step-by-step explanation:
5 x 10 = 50
5 x 11 = 55
1 x 122 = 122
50 + 55 + 122 =
227
Hope this helps!
NEED HELP QUICK NO LINKS PLEASE!
What is the greatest common factor (GCF) of 36x²y and 14x²y²?
Answer Options
1. xy
2. 2xy
3. 4x²y
4. 2x²y
Answer:
3. 4x^2y
Step-by-step explanation:
The GCF of 36 and 14 is 4.
The GCF of x^2y and x^2y^2 is x^2y
Multiply the two GCF and you get 4x^2y
I need some help on this
Answer:
B
Step-by-step explanation:
that's just what I got, I apologize if it's wrong!
Answer:
It's D. 90ft squared
Step-by-step explanation:
The equation for the surface area of an rectangular prism is 2(lw+lh+wh)
l=length
w= width
h=height
hii please help i’ll give brainliest
the mean, median and interquartile range
i’ll give brainliest!! please help and answer correctly! plsss answer quick
Answer: 400N
Step-by-step explanation:
The net force is the sum of all forces
275 + 125 = 400N
Answer:
c or d i think its c
Step-by-step explanation:
good luck
Can x + 3/x be simplified any more than it already is?
Answer:
No, that equation can be not be simplified any further.
Find the area of a vertical cross section through the centers of the bases of a cylinder with a height of 24 inches and a circumference of about 43.96 inches. Use 3.14 for π.
brainliest for who gets it right
Answer:
Step-by-step explanation:
Answer:
405 in^2
Step-by-step explanation:
Given data
Height= 27in
Circumference= 47.1 in
let us find the radius and the diameter of the base of the cylinder
from
C=2πr
47.1= 2*3.142*r
47.1= 6.284r
r= 47.1/6.284
r= 7.5 in
Diameter= 2r
D= 7.5*2
D= 15in
Hence the area of the cross-section
=H*D
=27*15
=405 in^2
Find the volume of a right circular cone that has a height of 9.7 ft and a base with a radius of 7.6 ft. Round your answer to the nearest tenth of a cubic foot.
Answer:
586.7 ft^3
Step-by-step explanation:
1) find the base area
base area = radius^2 x pi = 7.6^2 x pi = 181,458392 ft^2
2) find the volume
V = (base area x height)/3 = (181,458392 x 9.7)/3 = 586.7 ft^3
Rotate the vector (0,2) 270°
clockwise about the origin.
Picture is attached, please no links
Answer:
(-2,0)
Step-by-step explanation:
Herr you go, I hope this helps you.
The coordinates of the vector after rotation is (-2,0)
How to rotate the vector?The given parameters are:
Vector = (0,2)
Rotation = 270°clockwise about the origin
The rule of 270° rotation clockwise about the origin is:
(x,y) = (-y,-x)
So, we have:
(0,2) = (-2,0)
Hence, the coordinates of the vector after rotation is (-2,0)
Read more about rotation at:
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What is a unit rate?
PLEASE WILL MARK BRAINLIEST FOR QUICK ANSWER
Answer:
A unit rate is a rate with 1 in the denominator.
Step-by-step explanation:
I didn't even read the question correctly sorry
Step-by-step explanation:
Simplify the following expression: (35 + 24 )/(22 + 31 )
Answer:
1.11
Step-by-step explanation:
35 + 24 = 59
22 + 31 = 53
59 ÷ 53 ≈ 1.11
Have a good day :)
What is 3 1/4 times 5/8
3 1/4 × 5/8 = 13/4 × 5/8 = 65/32
Alicia's bowling score was 111. David's score was 89.
How much higher was Alicia's score?
Answer:
22 points higher
Step-by-step explanation:
111-89=22 so the difference between the scores is 22 points! Good luck!
A certain population has been show to be declining at a 3% annual rate. The initial population is 50,000. What will the population be after 8 years?
Answer: 39,187 people
Step-by-step explanation:
This would be best answered with a future value formula:
= Population * ( 1 + interest rate) ^ number of years
The population is declining so the interest rate will be a negative: -3%
= 50,000 * ( 1 - 3%)⁸
= 39,187 people
Olivia works at a company that creates mobile phones. She wanted to estimate the mean amount of time their new phone's battery lasts with regular use after a full charge. She took a random sample of 6 of these phones and randomly assigned each of them to a volunteer. She instructed them to fully charge the phones and use them as they regularly would until the battery died (without recharging the phone). Here are the data they reported:
Assume that all conditions for inference are met.
Which of the following is a 90% confidence interval for the mean battery life (in hours)?
Answer:
9+- 1.7
Step-by-step explanation:
Kahn
The required possible 90% confidence interval for the mean battery life is (10.95, 19.05) hours.
What is Statistic?Statistic is the study of mathematics that deals with relations between comprehensive data.
Here,
Assuming that the sample means and sample standard deviation were calculated from the data, a possible 90% confidence interval for the population means battery life can be calculated using the t-distribution.
For example, if the sample mean is 15 hours and the sample standard deviation is 3 hours, with a sample size of 6 and a 90% confidence level, the t-interval would be:
t-interval = sample mean ± t*(sample standard deviation / √(sample size))
where t is the t-value with (sample size - 1) degrees of freedom and a 90% confidence level.
Using a t-table, the t-value for 5 degrees of freedom and a 90% confidence level is approximately 2.571. Plugging in the values, we get:
t-interval = 15 ± 2.571*(3 / √(6))
t-interval ≈ (10.95, 19.05)
Therefore, a possible 90% confidence interval for the mean battery life is (10.95, 19.05) hours.
Learn more about Statistics here: https://brainly.com/question/23091366
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I need help it’s super confusing
Answer:
Range = 58
Mean = 25.81
Median = 17
Mode = 2, 9, 11, 12, 16, 17, 18, 41, 48, 50, 60
Upper Quartile = 11
Lower Quartile = 48
Step-by-step explanation:
Start by putting all of the values in order from least to greatest.
16, 18, 12, 9, 17, 2, 41, 48, 50, 60, 11
becomes
2, 9, 11, 12, 16, 17, 18, 41, 48, 50, 60
Range
The range is the difference between the highest and lowest value. So in this case, it's 58, because 60 - 2 = 58
Mean
The mean is another word for the average. To calculate the average, add all of the values and divide the sum by the number of values.
2 + 9 + 11 + 12 + 16 + 17 + 18 + 41 + 48 + 50 + 60 = 284
There are 11 values, so divide the sum (284) by 11:
284 / 11 = 25.8181818.
That rounds to 25.81
Median
The median is the middle value of the data set.
In 2, 9, 11, 12, 16, 17, 18, 41, 48, 50, 60 the middle value is 17. It has 5 values on each side of it.
Mode
The mode is the number that appears the most in the data set. Each value only appears once, so the mode is the entire list of numbers. 2, 9, 11, 12, 16, 17, 18, 41, 48, 50, 60
Upper Quartile
The upper quartile of a data set is the median of the numbers that are to the left of the median for the entire data set. The median is 17, so the numbers to the left are 2, 9, 11, 12, and 16. The median of those is 11 because it is in the middle. So the upper quartile is 11.
Lower Quartile
The lower quartile is found the same way the upper quartile is, but it's the median of the numbers to the right. The numbers to the right of 17 are
18, 41, 48, 50, and 60. The median of those is 48 because it's in the middle. So the lower quartile is 48.
please help!!!! I will mark brainlest
Find the missing side. Round to
the nearest tenth.
18
Х
33°
X = [ ? )
Answer:
The answer for Acellus people is 9.8
Step-by-step explanation:
The missing side of Right triangle will be [tex]9.8[/tex].
What is right triangle ?Right triangle is a triangle in which one angle is of [tex]90^0[/tex].
We have,
Hypotenuse [tex]=18[/tex] cm
Perpendicular [tex]=x[/tex] cm
One of the angle [tex]=33^0[/tex]
So,
Using the Trigonometric angles,
[tex]Sin33^0=\frac{Perpendicular}{Hypotenuse}[/tex]
So,
[tex]Sin33^0=\frac{x}{18}[/tex]
⇒
[tex]x=18*Sin\ 33^0[/tex]
So,
[tex]x=9.8[/tex]
The missing side is [tex]9.8[/tex] .
Hence, we can say that the missing side of Right triangle will be [tex]9.8[/tex].
To know more about Right triangle click here
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Plz help will give brainliest!
Answer:
#162°+ m∠1 + m∠2 = 180° (straight angle)m∠1 + m∠2 = 118°2x + 8 + 3x = 1185x = 110x = 22m∠1 = 2*22 + 8 = 52°m∠2 = 3*22 = 66°Correct choice is B#2Side of the square:
a = 2*12 = 24 ftArea of the square:
A = a² = 24² = 576 ft²Radius of each circle:
r = 12/2 = 6 ftArea of each circle:
A = πr² = 3.14*6² = 113.04 ft²Area of all circles:
113.04*4 = 452.16 ft²Area of shaded region:
576 - 452.16 = 123.84 ft²Correct choice is B