Given that v = (5,-4, 4) and w = (9-2,7) , evaluate v • w.
Answer:
a
Step-by-step explanation:
Given
u = (x₁, y₁, z₁ ) and v = (x₂, y₂, z₂ ) then the dot product is
u • v = (x₁ x₂ ) + (y₁ y₂ ) + (z₁ z₂ )
Then
v • w
= (5 × 9) + (- 4 × - 2) + (4 × 7)
= 45 + 8 + 28
= 81 → a
BRAINIEST TO WHOEVER RIGHT
Answer:
8
Step-by-step explanation:
To find the median, look at the line in the box. it lines up with 8 on the number line. Therefore, 8 is the median.
An anchor lowered at a constant rate into the ocean takes five seconds to move -15.5 m what is the rate of The anchor in meters per seconds
Answer:
-3.5 meters per second
Step-by-step explanation:
got it right on iready lol
Answer:
-3.5 meters
Step-by-step explanation:
Select the correct answer.
Martina creates the graph of function g by applying a transformation to function f:
f(x) = 4x − 2
g(x) = 4x + 7
Which transformation did Martina apply?
A.
a horizontal shift of 9 units left
B.
a vertical shift of 9 units down
C.
a horizontal shift of 9 units right
D.
a vertical shift of 9 units up
Answer:
D
Step-by-step explanation:
the b value of mx+b is the y intercept which only moves up and down.
On considère l'énoncé suivant :150 garçons et 250 filles sont inscrits au conservatoire. 20 % des garçons et 30 % des filles sont pianistes.
Question complète:
150 garçons et 250 filles sont inscrits au conservatoire. 20% des garçons et 30% des filles sont pianistes. Calculer le pourcentage de pianistes au conservatoire
Répondre:
26,25%
Explication étape par étape:
Nombre de garçons = 150
Nombre de filles = 250
Pianiste masculin = 20% des garçons
Pianiste masculin = 0,2 * 150 = 30 garçons
Pianiste féminine: = 30% des filles
Pianiste féminine = 0,3 * 250 = 75 filles
Nombre total de pianistes:
(30 + 75) = 105 pianiste
Population du conservatoire = (150 + 250) = 400
Pourcentage de pianiste:
105/400 * 100%
0,2625 * 100%
26,25%
I need help on this, please help
Answer:i tihnk football is .45 and tennis is .18?
Step-by-step explanation:
i dont know if this is right but im pretty sure it is
PLEASE HELP WORTH 16 POINTS WILL REPORT LINKS
Answer:
Angle A = 30.8
Angle B = 33.2
Step-by-step explanation:
180 - 116 = 64
This means that the other two angles need to add up to 64.
I just plugged in numbers until it worked.
I got that x = 14.6
2x + 4
2(14.6) + 4
29.2 + 4
33.2
3x - 13
3(14.6) - 13
43.8 - 13
30.8
Those are your angles. To make sure they are correct you just need to add up all the angles and make sure that they equal to 180.
116 + 33.2 + 30.8 =
180
The equation of the line with slope 4 and y -intercept 4 can be written in the form y = m x + b where the number m is: the number b is:
Answer: [tex]m:4; \ b=4[/tex]
Step-by-step explanation:
Given
Slope is 4
Y-intercept is 4
For the slope-intercept form of line i.e. [tex]y=mx+b[/tex]
[tex]m=\text{slope of line}\\b=\text{Y-intercept of the line}[/tex]
So, we can write
[tex]y=4x+4[/tex]
[tex]m:4; \ b=4[/tex]
What is the midpoint of the segment shown below?
Answer:
option c is the correct answer
In order to determine the number of hours of homework that a grade 10 student at Cedar Valley School does each week Elaine selects a random sample of 25 grade 10 students at the school and asks them to fill out a survey. Identify the sample.
A. the 25 students selected
B. the students in grade 10 at Cedar Valley School
C. all students at Cedar Valley School
D. the students in Elaine's grade 10 class at Cedar Valley School
E. all the grade 10 students in the school district
1. Given the lines shown here, what are two possible equations for this system of equations?
Answer:
i just need help pasing 5th grade can you help by giving me a link so i can get answers to quistions pls
Step-by-step explanation:
FInd the sum of 5x+20 and the opposite of 20 write an equivalent expression in standard form.Justify each step
Answer:
5x
Step-by-step explanation:
5x + 20 - 20 = 5x
A train arrives at the station with 150 passengers on board. 2/5 of the passengers get off the train in seattle , and then 35 passengers board the train . How many passengers are on the train when it leaves the station?
Answer:
95 passengers :) brainliest pls!
Step-by-step explanation:
2/5 = 0.4,
0.4*150 = 60,
60+35 = 95.
Solve 3.18 x 16
SLOVE IT!!!!!
Answer:
50.88
Step-by-step explanation:
The Answer is
50.88
Hope this helps!
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP MEEE PLSSSS
Answer:
Ur question? Itz incomplete
A shark is cruising at a depth of 32.9 meters below sea level. If it
ascends 15.5 meters, what is the shark's new depth?
Help please asap
What is the surface area
Answer:
27
Step-by-step explanation:
maybe?
Answer:
486
Step-by-step explanation:
start by finding the area of 1 side
then you multiply it by 6 since a cube has 6 sides
What is the volume of this figure
Please help me
Help!! Ok give brainlest to the correct
Answer:
that looks like 50 degrees to me
Step-by-step explanation:
hope i helped have a great day!!!
help pppppppppp
don’t mind harry potter and coco melon
Answer:
It is the forth one
Step-by-step explanation:
to long to explain
Answer:
Step-by-step explanation:
Number 4
What is 1/2 of 8 what is 1/3 of 12
Answer:
Half of 8 is 4 and one third of 12 is 4
Step-by-step explanation:
I hope I answered your question
Solve the equation n - 19 = 13
Select the correct answer.
Which expression is equivalent to (in picture)
Use a Pythagorean Triple to find x.
Answer:
x = 51
Step-by-step explanation:
Using Pythagoras' identity in the right triangle.
x² = 45² + 24² = 2025 + 576 = 2601 ( take the square root of both sides )
x = [tex]\sqrt{2601}[/tex] = 51
Answer:
x = 51.
Step-by-step explanation:
The triple you require is 17-15-8
We have x-45-24
- that is three times each number in the triple.
So x = 3*17 = 51.
Help!!! I do not seem to understand this problem well.
Step-by-step explanation:
weeks. days. (wk,d)
2. 14. (2,14)
4. 28. (4,28)
6. 42. (6,42)
8. 56. (8,56)
the distance between (-9,5) (-9,-1)
Answer:
0, 6
Step-by-step explanation:
Joshua and Crystal opened
savings accounts on the same
day, each with an initial deposit
of $100.00. After two months,
Joshua's account shows a
balance of $67.25 and Crystal's
account shows a balance of
$131.97. Which account balance
changed by the greatest
amount? Why?
I
8
I’m stuck what is the answer?
Answer:
Joshua's account had a greater change.
Step-by-step explanation:
Both accounts had $100
Joshua's account now has $67.25 which means he used $32.75
Crystal's account now has $131.97 which means he saved $31.97.
Joshua had a greater change of balance.
pls help!!
The side of a regular pentagonal pyramid is 6 feet long. The slant
height of the is 7 feet long. What is the lateral area of the pyramid.
Answer:
105 sq ft.
Step-by-step explanation:
LA = slant height time perimeter of the base divided by 2.
Perimeter = 5(6) = 30
LA = 7(30)/2 = 105 sq ft.
I need help I will give you 15 points
Answer:
Middle answer is right
Step-by-step explanation:
The first answer is obliviously wrong so therefore it is the last two options
-(x+1)^2
= -(x^2+2x+1)
= -x^2-2x-1-3 (add the -3)
= x^2-2x-4
y intercept make x=0 therefore y=-4
AOS is x= -b/2a
x=2/2 which is 1
therefore it isthe middle answer
()) There are two cubes. The first cube has a volume of 1,000 cubic units. The second cube is smaller than the first, with sides only half as long. What is the volume of the second cube? D) cubic units Submit
Answer:
125 units^3
Step-by-step explanation:
Volume is l*w*h = V. A cube has all equal sides so wecan divide 1000 by 3 and get our side lengths.
You then divide the sides by 2 because the question says the second cubes sides are half the size
5*5*5 = 125
The volume of the second cube is 125 units³.
What is volume?In mathematics, ‘Volume’ is a mathematical quantity that shows the amount of three-dimensional space occupied by an object or a closed surface.
Given that a cube has volume 1000 units³ and another smaller cube has smaller volume has side only half as long.
We need to find the volume of the second cube,
So, let the side of the first cube be x,
We know that the volume of a cube = side³
Therefore,
x³ = 1000
x = ∛1000
x = 10 units
Therefore, the second cube will have a side of 10/2 = 5 units
Volume of second cube = 5³ = 125 units³.
Hence the volume of the second cube is 125 units³.
Learn more about volume click;
https://brainly.com/question/28058531
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