Answer:
X2x−14+12x
Step-by-step explanation:
last year borris paid 256
(6, - 3, 1) and (8,9,-11) find the angle between the vector
Answer:
The angle between the two vectors is 84.813°.
Step-by-step explanation:
Statement is incomplete. Complete form is presented below:
Let be (6,-3, 1) and (8, 9, -11) vector with same origin. Find the angle between the two vectors.
Let [tex]\vec u = \langle 6, -3, 1 \rangle[/tex] and [tex]\vec v = \langle 8,9,-11 \rangle[/tex], the angle between the two vectors is determined from definition of dot product:
[tex]\theta = \cos^{-1} \left(\frac{\vec u \,\bullet \,\vec v}{\|\vec u\|\cdot \|\vec v\|} \right)[/tex] (1)
Where:
[tex]\vec u[/tex], [tex]\vec v[/tex] - Vectors.
[tex]\|\vec u\|[/tex], [tex]\|\vec v\|[/tex] - Norms of each vector.
Note: The norm of a vector in rectangular form can be determined by either the Pythagorean Theorem or definition of Dot Product.
If we know that [tex]\vec u = \langle 6,-3,1 \rangle[/tex] and [tex]\vec v = \langle 8, 9,-11 \rangle[/tex], then the angle between the two vectors is:
[tex]\theta = \cos^{-1}\left[\frac{(6)\cdot (8) + (-3)\cdot (9) + (1)\cdot (-11)}{\sqrt{6^{2}+(-3)^{2}+1^{2}}\cdot \sqrt{8^{2}+9^{2}+(-11)^{2}}} \right][/tex]
[tex]\theta \approx 84.813^{\circ}[/tex]
The angle between the two vectors is 84.813°.
What fraction of the square is the green triangle?
Answer:
1/4
Step-by-step explanation:
Answer:
7/32
(btw thats the simplified version....look at the bottom for non-simplified if you didnt need it simplified)
Step-by-step explanation:
first count how many squares there are in total
its 8 by 8 so in total there are 64!
now there is the green triangle.....
count all the whole squares in it = 10
now count all the half squares (little triangles in it)= 8
Now if you put those little triangles together it would make one small unit square so it is 4 of all
10 + 4 = 14
So there is a Total of 14 unit squares in the green triangle
Fraction Time......
now lets take 14/64 and simplify it
that would be 7/32
We cant make it any more simplified now if you werent looking for the simplified version the your answser would be 14/64
I hope this was the answser you were looking for!! Mark Me Brainliest ;)The difference between two whole numbers is 99. The ratio of the two numbers is 2:5. What are the numbers?
Let the two whole numbers be 2x and 5x
The difference between 2x and 5x is 99. So,
5x-2x=99
3x=99
x=99/3
x=33
Therefore the two numbers are
5x=5*33=165
2x=2*33=66
Answer:
28:71
Step-by-step explanation:
99/7=14.14285714 (make sure to keep that in the calculator) that equals 1 part.
Therefore,
2×14.14...=28 (round up to nearest whole number)
5×14.14..=71 (round up to nearest whole number)
Anthony paints fences. He charges $35 for painting supplies and $15 for each hour, h, he
works. If Anthony charges Jill $155, which equation can be used to determine the number of
hours Anthony spent painting Jill's fence?
Choices:
A: 15h+35=155
B: 15-35h=155
C: 15h=155
D: 35h= 155
Please help fast!
(6th grade math)
Can someone help me
the answer is 9 because
3x9=27
and 27-18=9
mark brainliest plz
What is the value of the y-coordinate of point A
Answer:
there's no pic
Step-by-step explanation:
can you re attach it plz I might be able to help
A rectangle has a perimeter of 60 inches and a length of 22 inches. What is the width of the rectangle?
Answer:
8in
Step-by-step explanation:
I hope this helps. have a great dsy
Answer:
perimeter of a rectangle = 2( l+b )
perimeter = 60 inches
length = 22 inches
∴ width =
2 ( 22 + b ) = 60
22 + b = 60/2 = 30
22 + b = 30
b = 30 - 22 = 8 inches
∴ width = 8 inches
hope this answer helps you..
please mark as brainliest .. thank you!
Hi there! I have a math problem I need help on: A recipe calls for 1 teaspoon of cinnamon. You only have a 1/2 teaspoon measuring spoon. What fraction of a teaspoon of cinnamon, in halves, do you need? Please include the answer in your reply, and please don't go off-topic.
You need 2 half-teaspoons, since
1/2 tsp + 1/2 tsp = (1 + 1)/2 tsp = 2/2 tsp = 1 tsp
URGENT! 50 POINTS
Visualization:
Suppose you revolve the plane region completely
about the given line to sweep out a solid of revolution. Describe
the solid and find its surface area in terms of π.
Question: the line x = 4
Answer:
Cylinder56πStep-by-step explanation:
This will result in cylinder with radius of 4 and height of 3.
Total surface area:
S = 2πr² + 2πrh = 2π(4² + 4*3) = 2π*28 = 56πIf beaver family one can cut down and 20" tree in 15 minutes and family two can cut down a tree 3 times the size in twice as long how long will it take the second beaver family to cut down a 20" tree
Answer:
10 minutes
Step-by-step explanation:
Beaver family 2 can cut down 60'' (20 x 3) tree in 30 (15 x 2) minutes
In one minute, beaver family 2 would cut down 60/30 = 2'' tree
time to cut down 20'' tree = 20/2 = 10 minutes
How to find the missing dimensions of a prism
Answer:
Below.
Step-by-step explanation:
You need to know the volume or total surface area of the prism and 2 of the dimensions.
The formula for the volume = wlh where w = width , l = length and h = height.
So knowing say w = 4, l = 8 and V = 192 we have:
V = wlh
192 = 4 * 8 * h
h = 192/4*8
= 192/32
= 6.
The angle of elevation of the top of a tower from two points 121 m and 144 m away from the foot of the tower on th same side are found to be complementary. find the height of the tower.
Answer:
132 m
Step-by-step explanation:
Refer to attachment for figure.
In smaller triangle with angle theta , we have ,
⇒ tanθ = p/b
⇒ tanθ = h/121m
⇒ tanθ = h/121 m
In triangle with angle 90-∅
⇒ tan(90-θ) = p/b
⇒ cot θ = h/144 m
Multiplying these two ,
=> tanθ . cotθ = h/121 m × h/144m
=> 1 = h²/ (121 m × 144m )
=> h² = 121m × 144m
=> h= √ ( 121m × 144m)
=> h = 11m × 12m
=> h = 132 m
BRAINLIEST TO CORRECT ANSWER! NO links as answers, or you will be reported! (question 12)
Answer:
Factor numerator and denominator
Step-by-step explanation:
HELPPPP PLEASE !!! I will give brainliest!!! THANK YOU
The parabola y = x2 is reflected across the x-axis and then scaled vertically by a factor of 5.
What is the equation of the new parabola?
y =
THANK YOu!!!!!
Answer:
Step-by-step explanation:
something like this Gigi,
y = -5([tex]x^{2}[/tex])
Ali, Ben and Cathy share an amount of money in the ratio 6 : 9 : 10 What fraction of the money does Ben get?
there are 6+9+10=25 equal parts, so Ben has 9/25 of the total.
Help PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZz
Answer:
I think it is the orange or the pink.
Step-by-step explanation:
A cylinder has a height of 11 inches. Its volume is 4,973.76 cubic inches. What is the radius of the cylinder?
Use ≈ 3.14 and round your answer to the nearest hundredth.
Answer:
12 inches
Step-by-step explanation:
Given data
Height= 11 inces
Volume= 4,973.76 cubic inches.
The expression for the volume of a cylinder is
V= πr^2h
substitute
4,973.76= 3.14*r^2*11
4,973.76= 34.54r^2
r^2= 4,973.76/ 34.54
r^2= 144
Square root both sides
r=√144
r=12 inches
When the y coordinate is positive, which way do you move on the coordinate plane?
Answer:
up
Step-by-step explanation:
You would move it up the y-axis
Why is the volume of a cone 1/3 the volume of a cylinder if the height and the radius are equal
Answer:
Step-by-step explanation:
88what is the approximate circumference of a plate with a diameter of 12 inches? use 3.14 for π. Round to the nearest hundredth if necessary. (I really need this it's a test)
Answer:
37.7
Step-by-step explanation:
C=πd=π·12≈37.69911
rounded to the nearest hundredth 37.7.
hoped this helped.
Which scatterplot shows a linear association?
Answer:
The first one I believe
Step-by-step explanation:
Answer:
The answer is A
Step-by-step explanation:
The scatter plots likes b, c and d are non linear associations. You can easily remember this just by looking how weird shaping they are for example d. You can always remember that a scatter plot like d is always nonlinear.
hii please help asap ill give brainliest thanks
Answer:nirvana
Step-by-step explanation:
11. David's net worth is $45,765.78 and his assets have a value of
$62,784.14. If his assets increase by $2,784.89 and his liabilities
decrease by $3,742.36, what is his net worth?
$69,311.39
$44,808.31
His net worth will not change.
$52,293.03
CLEAR ALL
Answer:
the last one
Step-by-step explanation:
Answer:
D. $52293.03Step-by-step explanation:
Initial values
Net worth is $45765.78Assets $62784.14Liabilities:
$62784.14 - 45765.78 = $17018.36New values
Assets increase:
$62784.14 + $2784.89 = $65569.03Liabilities decrease:
$17018.36 - $3742.36 = $13276His net worth:
$65569.03 - $13276 = $52293.03Correct choice is D
what is the simplified fractional equivalent of the terminating decimal 0.78?
Answer: 39/50
Step-by-step explanation: the answer is 39/50
Answer:
the answer is 39/50
Step-by-step explanation:
thank you
A train leaves Richmond at 8:50AM and arrives at Washington DC at 11:35AM. How long does the trip take?
Answer:
2 hours 45 minutes.
Step-by-step explanation:
9 :00 - 8:50 = 10 minutes.
11:35 - 9.00 = 2 hours 35 minutes.
So length of the trip = 2 hours 45 minutes.
Answer:
Solution given:
the trip take =11:35-8:50=2 hours 45 minutes.
can someone please help me with 7 and 8...thank you <3
Answer:
7. <B = 129°8. <N = 85°Step-by-step explanation:
7. <A + <B = 180° [Since Co-interior angles]
=> 51° + <B = 180°
=> <B = 180° - 51°
=> <B = 129° (Ans)
8. <M + <N = 180° [Since Co-interior angles]
=> 95° + <N = 180°
=> <N = 180° - 95°
=> <N = 85° (Ans)
what is the minus 60 plus 40 =x plus y= x+9
60+40=x
y=x+9
MInus
x=100
y=109
Diffrence 9
Answer:
x = -20
y = -11
help needed! no links please, they're annoying.
Which of the equations below shows the relationship in the table?
Answer:
Im Sure its A
Step-by-step explanation: