Answers
Answer:
x=45 y=60
Step-by-step explanation:
the picture is kinda blurry but if im seeing it correctly its ^^^
Related Questions
Given that Cos(A) = .6 and csc(A) is -1.25, what is tan (a)
Answers
============================================================
Explanation:
cos(A) = 0.6 = 6/10 = 3/5
Recall that csc is the reciprocal of sine.
If csc(A) = -1.25, then sin(A) = 1/csc(A) = 1/(-1.25) = -0.8 = -8/10 = -4/5
Then we would have
tan(A) = sin(A)/cos(A)
tan(A) = sin(A) ÷ cos(A)
tan(A) = (-4/5) ÷ (3/5)
tan(A) = (-4/5) * (5/3)
tan(A) = -4/3
Answer:
-4/3
Step-by-step explanation:
Check the solution
Bài 7. Biện luận theo tham số a hạng của các ma trận sau:
a)
1 2 1
0 3 2 1
5 1 0
2 7 0 1
a
a
b)
0 0 2 5
0 3 4
0 11 4 7
3 4 1
a
a
c)
1 2 0 3
1 1 4
0 5 1 1
0 4 0 6
a
Answers
Answer:A
Step-by-step explanation:A
I need help please !!!
Answers
Answer:
ดำหเภสยาแไ_ะทบบใืกไภเืวบวมเพนยชตึภ/ภึรื
what is 5/8 - 1/2 ??
Answers
Answer:
1/8
Step-by-step explanation:
First convert 1/2 to eighths:
1/2 = 4/8
5/8-4/8= 1/8
Hope this helps! :)
m
+ 4 = 7
Step One:
Step Two:
Step Three:
Step Four:
ma9
m/3+4+4+7+4
m/3-7
m=21
m/3+4-47-4
m/3*3+4=743
m/3-3
ma17
m/3+4-3=7-3
m/3*3=3*3
m/3+7=4
m=3
m/3+8=11
m/314-4=7
m+4=21
Answers
Answer:
see below
Step-by-step explanation:
m/3 + 4 = 7
Subtract 4 from each side
m/3+4-4 = 7-4
m/3 = 3
Multiply each side by 3
m/3*3 = 3*3
m =9
Suppose you have a 100 AED of coupons at Dubai Expo 2020. You spend 30 AED per game. Write an equation that models the total amount of money y you spent if you play x games.
Answers
The total amount of money y you spent if you play x games is expressed as y = 1/30x
Given the following
Total amount of AED of coupons at Dubai Expo 2020 = 100 AED
If you spend 30 AED per game, this can be expressed as:
30 AED = 1 game
100 AED = x game
Cross multiply
30 x = 100 * 1
30x = 100
x = 100/30
x = 10/3 games
This shows that 100 AED of coupons is used for 10/3 games
100 AED = 10/3 games
y AED = x games
Cross multiply
100 x = 10/3 y
100xy = 10/3
10 xy = 1/3
30xy = 1
y = 1/30x
Hence the total amount of money y you spent if you play x games is expressed as y = 1/30x
Learn more here: https://brainly.com/question/14107099
Help please :) will give brainliest if the answer is right
Answers
Answer:
(A) D.
(B) Cosh(-x)= e^-x+e^x
2
and the last box on the bottom would be 2
Step-by-step explanation:
What percent of the hours were billed by Jon, Roy, or Dean?
Write your answer using a percent
sign (%).
Answers
Answer:
10%
Step-by-step explanation:
please tell me if im right or wrong
1. The value of angle A is
50°. What is the value of
angle B?
Answers
Answer:
130º
Step-by-step explanation:
a line is 180º so if one angle is 50 then it's just 180-50
Determine whether the function is continuous or discontinuous.
Answers
Answer:
it is continues
Step-by-step explanation:
it is continues
(1)Kamlesh brought a juice bottle of 5 litres. He drank 214 litres
of juice in one day. How much juice is left in the bottle?
Answers
Answer:
I think there is a typing error it should be 214 ml
Step-by-step explanation:
1 litre = 1000 ml
5 litre= 5000ml
5000- 214= 4786
hope it helps :)
What are the measures for the nuber angles
Answers
1. 75
2. 105
3. 105
4. 75
6. 105
7. 105
8. 75
1/2 : 10 = 2 12 : x
What is the value of x
Answers
Help me please please please!!!!!!!!!
Answers
Answer:
1 1/5
Step-by-step explanation:
3/10 + 9/10
The denominator is the same so we can add the numerators
12/10
Rewriting
10/10 + 2/10
1 2/10
Simplify the fraction
1 1/5
Answer:
1.2 would be the decimal form to answer and in the fraction form it would be
6/5 or in a mixed number fraction 1 1/5
So 1 1/5 is your answer
Please mark me as branliest
There are 4 red balls and 6 black balls in a bag. Draw consecutively 3 balls with replacement. Find the probability when the first two balls drawn are black and the third ball drawn is red.
Answers
Answer:
[tex]\frac{1}{3} *\frac{1}{2} =\frac{1}{6}[/tex]
Step-by-step explanation:
So the first two balls are black, so the way to change the path is to take two out of six black balls over two out of ten balls, which is 1/3.
If the last one is red then the probability is that if you take one of the four red balls and you take one of the eight balls, you get 1/2.
So the total probability is 1/3 times 1/2 is 1/6.
1
TIME REMAINING
59:10
Which graph has a slope of ?
2
سا
-1.
-5-4
-2-1
11
-21,
1 2 3 4 5
-2
-3
-3
-5
Answers
Answer:
5
Step-by-step explanation:
i say 5 it makes more sens then the other answers
The graph which have slope 4/5 is Graph II.
What is Slope?A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the
change in y coordinate with respect to the change in x coordinate as,
m = Δy/Δx where, m is the slope
We have the graph.
As, we know slope= rise / run
In graph 1 the slope is
Slope= rise/ run
slope= 4/4
slope= 1
In graph 2 the slope is
Slope= rise/ run
Slope = 4/5
In graph 1 the slope is
Slope= rise/ run
Slope= 2/5
Thus, Graph II have slope 4/5.
Learn more about Slope here:
https://brainly.com/question/3605446
#SPJ7
the general solution of the equation cos3x +cos2x =sin3x/2 + Sinx/2 is
Answers
Answer:
I am doiiiiiiinnnnggg just wait
The school need to make $750 in order to cover all of their expenses.They estimate 200 students will come to the dance.If they made $150 from a fundraising bake sale what they need to charge per ticket to cover their cost?--
Answers
9514 1404 393
Answer:
$3
Step-by-step explanation:
The cost that hasn't been covered by bake sale proceeds is ...
$750 -150 = $600
If that cost is divided among 200 students, the amount each student needs to pay is ...
$600/(200 students) = $3/student
They need to charge $3 per ticket.
Enter the data as given, on the sample Form 1040EZ below. (Do not enter dollar signs or commas.)
Enter a social security number. It is 039-29-7319.
Enter 000-00-0000 for Spouse's Social Security Number
On line 1 enter $5,000.00
On line 2 enter $50.00.
On line 4 enter the total of line 1 plus line 2.
On line 5 put an "x" at yes and enter one zero.
On line 6 enter the total from line 4.
On line 7 enter $757.50
On line 10 enter $5,050 x 0.15 = 757.5
On line 11a enter line 7 minus line 10.
On line 12 enter line 7 minus line 10.
Type "John" in the signature box. (Your name would normally go here.)
Answers
9514 1404 393
Explanation:
Of course, copying the form is the same as following the instructions telling you how to fill in the form.
Line 4 is the sum 5000 +50 = 5050.
Lines 11a and 12 are the difference 757.50 -757.50 = 0.
Find the area of the surface.
The part of the sphere
x2 + y2 + z2 = 81
that lies above the plane
z = 4.
Answers
Parameterize this surface by
r (u, v) = 9 cos(u) sin(v) i + 9 sin(u) sin(v) j + 9 cos(v) k
with 0 ≤ u ≤ 2π and 0 ≤ v ≤ arccos(4/9)
See the attached sketch to see how we arrive at the upper limit for v.
Take the normal vector to the surface to be
n = ∂r/∂u × ∂r/∂v
n = -81 cos(u) sin²(v) i - 81 sin(u) sin²(v) j - 81 sin(v) cos(v) k
which has magnitude
||n|| = 81 sin(v)
Then the surface area is
[tex]\displaystyle \iint_S \|\mathbf n\| \,\mathrm du\,\mathrm dv = 81 \int_0^{2\pi} \int_0^{\arccos(4/9)} \sin(v)\,\mathrm dv\,\mathrm du \\\\ = 162\pi \int_0^{\arccos(4/9)} \sin(v)\,\mathrm dv \\\\ = -162\pi (\cos\left(\arccos\left(\frac49\right) - \cos(0)\right) \\\\ = 162\pi \left(1 - \dfrac49\right) \\\\ = \boxed{90\pi}[/tex]
If you're not familiar with surface integrals, you can instead use what's sometimes called the projection method. Let
z = f(x, y) = √(81 - x ² - y ²)
(where we take the positive square root because we're looking at a part of the top half of the sphere)
Projecting the surface down onto the (x, y)-plane, we see that it casts a "shadow" of a disk with radius √(9² - 4²) = √65. (Use the Pythagorean theorem to solve for the missing side of the triangle in the sketch.)
Then the surface S considered above is hovering over the set in the (x, y)-plane,
D = {(x, y) : x ² + y ² ≤ 65}
The area is then
[tex]\displaystyle \iint_D \sqrt{1 + \left(\dfrac{\partial f}{\partial x}\right)^2 + \left(\dfrac{\partial f}{\partial y}\right)^2} \,\mathrm dx\,\mathrm dy[/tex]
It's easier to compute this integral in polar coordinates, so we take
x = r cos(t )
y = r sin(t )
dx dy = r dr dt
and the region D is given by the set
{(r, t ) : 0 ≤ r ≤ √65 and 0 ≤ t ≤ 2π}
Then the integral would be
[tex]\displaystyle \iint_D \sqrt{1 + \left(\dfrac{\partial f}{\partial x}\right)^2 + \left(\dfrac{\partial f}{\partial y}\right)^2} \,\mathrm dx\,\mathrm dy = \iint_D \sqrt{1 + \frac{x^2+y^2}{81-x^2-y^2}}\,\mathrm dx\,\mathrm dy \\\\ = \iint_D \sqrt{\frac{81}{81-x^2-y^2}}\,\mathrm dx\,\mathrm dy \\\\ = \int_0^{2\pi} \int_0^{\sqrt{65}} r \sqrt{\frac{81}{81-r^2}}\,\mathrm dr\,\mathrm dt[/tex]
Substitute s = 81 - r ² and ds = -2r dr :
[tex]\displaystyle \int_0^{2\pi} \int_0^{\sqrt{65}} r \sqrt{\frac{81}{81-r^2}}\,\mathrm dr\,\mathrm dt = 2\pi \int_0^{\sqrt{65}} r \sqrt{\frac{81}{81-r^2}}\,\mathrm dr \\\\ = -9\pi \int_{81}^{16} \frac{\mathrm ds}{\sqrt s} \\\\ = 9\pi \int_{16}^{81} s^{-1/2}\,\mathrm ds \\\\ = 18\pi \left(\sqrt{81} - \sqrt{16}\right) \\\\ = \boxed{90\pi}[/tex]
I need help to find the side
Answers
Answer:
x = 10.55cm
Step-by-step explanation:
Sin 29 degrees = 7cm/x
X = 7cm / sin 29
= 10.55 cm
Answer:
x =14.4cm
Step-by-step explanation:
Sin x = opp/hyp
This is because we are given angle look into the triangle and see opp given =7 and need hypotenuse
Sin x = 7 / sin (29) = 14.4386574 cm = 14.4cm
This is because the opp is the 7 measure.
x = 14.4cm
We can prove the base is less through Pythagoras theorem
simply as c^2-b^2 = a^2
14.4386.....^2 -7^2 = c^2
sqrt 208.47 - sqrt 49 =c^2
c^2 = sqrt 159 = 7.43849023
therefore base = 7.44
To check angle 29 degrees for 3rd proof
cos (29) x 7/x= (x)
= 203 / x
check 203/29 = 7
Given a=7 and ∠α=29°,
b = 12.62833
c = 14.43866 proof
∠β = 61°
h = 6.12234
area = 44.19917
perimeter = 34.06699
inradius = 2.59484
circumradius = 7.2193
Beth simplified the expression 8 + 10 + 8 + 2 minus (4 times 1.4) minus (4 times 1.4) to find the perimeter of the figure on the grid.
On a coordinate plane, a figure has side lengths of 8, 10, 8, 2, (4 times 1.4), (4 times 1.4).
What error did Beth make?
She found the area of the figure instead of the perimeter.
She subtracted the lengths of the diagonal lines instead of adding them.
She used 4 times 1.4 to represent the length of each diagonal line instead of 4.
She added the horizontal and vertical lengths instead of multiplying them.
Answers
Answer:
Step-by-step explanation:
the answer is 16.8
Explanation: well for starters you have to do what's in the parenthesis, so 4 times 1.4 is equal to 5.6. so now we add up the equation and get 28, so now we are left with 28-5.6-5.6 which equals 16.8
hoped this helped;)
Answer:
She subtracted the lengths of the diagonal lines instead of adding them.
Step-by-step explanation:
Help with questions 21-23 using pemdas
If u can, please help with some ones below those (using pemdas) :]
Tyyy
Answers
Answer:
21. 123 22. 6.86 or 6/ 6/7 23. 90
Step-by-step explanation:
21. (6+4)² + (22+10÷2)
(10)² + (22 + 5)
100 + 27
127
22. (11+42-5) ÷ (11-4)
48 ÷ 7
6.85 or 6 6/7
23. (17-3) × (14 - 6) -22
14 × 8 - 22
112 - 22
90
What did you learn in this lesson about the value of leaving the money invested for long periods of time? How can you apply this to retirement?
Answers
Answer:
65435675e
Step-by-step explanation:
12456764 br5654365
IF Tyler s currently 5 inches
tal, how many inches more
does he need to grow to be
feet tal?
Answers
Hey there! Your answer is:
7 inches
Explanation:
If Tyler is 5 inches tall, he needs to grow 7 inches to be a foot tall. This is because 12 inches are in 1 foot. We can do a simple subtraction problem to figure this out.
12 inches - 5 inches = 7 inches
Since Tyler is 5 inches tall, we know that if we subtract 12 inches from 5 inches we will get the number of inches he needs to grow.
I hope this answer helps you out! Let me know if you have any questions and have a wonderful day/night!
please help me with this sum
Answers
Answer:
lol no34532534
Step-by-step explanation:
Once the high temperature was 30°F. Then at night the temperature dropped by 23 degrees. does the expression 30 + (-23) mean the temperature at night? explain.
Answers
Answer:
7°
Step-by-step explanation:
simple arithmetic duh
simplify:
[tex]x ^{4} - {x}^{2} {y}^{2} + {y}^{4} [/tex]
x4-x2y2+y4
Answers
Answer:
[tex] {x}^{4} - {x}^{2} {y}^{2} + {y}^{4} \\ {x}^{4} + {y}^{4} - {(xy)}^{2} [/tex]
4/7 + 2/7 = ? can yall plzz help me simplify the awnser
Answers
Answer:
6/7 is the correct answr
he heights of one hundred trees in a certain forest are measured. It’s found that the mean height of the trees is 48 feet. Use this information to answer the following:
Would it be possible to have a standard deviation of 7.5 feet? If so, what would this tell us about the tree heights in the forest?
Would it be possible to have a standard deviation of 1? If so, what would this tell us about the tree heights in the forest?
Would it be possible to have a standard deviation of 0? If so, what would this tell us about the tree heights in the forest?
Would it be possible to have a standard deviation of -2.5? Why or why not?
Answers
Using the concept of standard deviation, it is found that:
It would be possible to have standard deviations of 7.5 feet and 1 feet, which would mean that the distribution of tree heights are normal.It would be possible to have a standard deviation of 0 feet, which would mean that all trees have the same height.It would not be possible to have a standard deviation of -2.5 feet, as it is always a positive value.The standard deviation of a data-set is given by the square root of the sum of the differences squared of each observation and the mean, divided by the one less than the number of values. It is always a positive value, thus, a standard deviation of -2.5 feet, for example, is not possible.If a data-set has a standard deviation of 0, it means that all values in the data-set are the same.In a normal distribution, 99.7% of the measures are within 3 standard deviations of the mean.
[tex]48 \pm 3(7)[/tex] and [tex]48 \pm 3(1)[/tex] are both reasonable distributions for the tree heights, thus, it is possible to have standard deviations of 7.5 and 1 feet.
A similar problem is given at https://brainly.com/question/24754716
